Lawn mowing device for greening engineering

The disc structure connected by a soft rope and driven by an electric push rod can achieve efficient lawn mowing, solve the problem of easy blade breakage, and improve safety and stability.

CN223322491UActive Publication Date: 2025-09-12XUESONG CONSTR ENG CO LTD
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Patent Information

Application Number
CN202421734926.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-09-12
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

During the lawn mowing process, the high-speed rotating blades of existing lawn trimming devices are prone to contact with hard objects and break, posing a safety hazard.

Method used

It adopts a disc structure connected by a soft rope. The electric push rod and drive assembly drive the shaft to rotate. The soft rope is used to cut the lawn, and the height of the soft rope is adjusted by the lifting plate to avoid collision and breakage with hard objects.

Benefits of technology

The safety of lawn mowing is improved. The soft rope deforms when it touches hard objects and is not easy to break, which reduces the damage to the user and surrounding objects, and improves the stability and safety of the device.

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Abstract

The utility model relates to the technical field of mowing devices, and discloses a lawn mowing device for greening engineering, which comprises a trolley, an n-shaped frame, an electric push rod, a lifting plate, a rotating shaft, a disc, a soft rope and a driving assembly. In the using process, the driving piece is controlled to work, the rotating shaft can rotate relative to the lifting plate, and then the disc is driven to rotate. At the moment, under the action of centrifugal force, the soft ropes around the circle center can be in a straightened state, so that the lawn is trimmed. Then, the electric push rod is controlled to work, the lifting plate can be driven to move in the height direction of the trolley, finally, the heights of the soft ropes around the circle center are adjusted, and the lawn can be trimmed to different heights. In addition, the soft rope can deform when touching hard objects such as stones and the like, so that the soft rope is not easy to break. The soft rope which can rotate at a high speed is broken, and due to the fact that the weight is small, the soft rope does not cause serious damage to a user or surrounding objects, and safety is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of lawn mowing devices, for example, to a lawn mowing device for greening projects. Background Art

[0002] Related technology (Publication No. CN219137166U) discloses an artificial lawn trimming device comprising a mobile carrier in the form of a box-like structure with a sealed top and an open bottom. Mounted within the mobile carrier are a vertically mounted transmission rod and a mobile rod slidably mounted on the transmission rod. A lifting plate is also rotatably mounted on the outer wall of the mobile rod. Several blades for mowing the lawn are evenly distributed on the bottom of the mobile rod. The mobile carrier is equipped with a drive motor for rotating the transmission rod and an adjustment mechanism for vertically moving the lifting plate.

[0003] In the process of implementing the above embodiments, it was found that there are at least the following problems in the related art:

[0004] This artificial lawn trimming device uses a motor to rotate multiple blades, and an adjustment mechanism to adjust the height of the blades, allowing the lawn to be trimmed to different heights. However, during the lawn trimming process, the high-speed rotating blades can break and break if they strike hard objects such as stones, potentially causing accidents and posing a safety hazard.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not intended to be an extensive review, nor to identify key / critical elements or to delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiments provide a lawn mowing device for greening projects to improve safety.

[0008] In some embodiments, a lawn mowing device for greening projects includes: a trolley; a cam frame installed on the trolley; an electric push rod installed on the top wall of the cam frame along the height direction of the trolley; a lifting plate installed on the movable end of the electric push rod and located on the inner side of the cam frame; a rotating shaft rotatably installed on the lifting plate along the height direction of the trolley, and the rotating shaft facing the ground; a disc installed on the rotating shaft; a soft rope connected to the disc and evenly distributed around the center of the disc; a driving assembly installed between the lifting plate and the rotating shaft, and configured to drive the rotating shaft to rotate relative to the lifting plate; wherein, under the drive of the electric push rod, the disc can be against the ground.

[0009] Optionally, the driving assembly includes: a motor base, mounted on the lifting plate, along the length direction of the trolley, the motor base and the rotating shaft are located on both sides of the mold frame; a driving motor, mounted on the motor base; wherein the rotating shaft rotates under the drive of the driving motor.

[0010] Optionally, the drive assembly further includes: a driving pulley mounted on the rotating end of the motor; a driven pulley mounted on the rotating shaft; a belt mounted between the driving pulley and the driven pulley and located on the inner side of the mold frame; wherein the diameter of the driving pulley is smaller than the diameter of the driven pulley.

[0011] Optionally, the trolley includes: a support plate; a hand push frame installed on the top surface of the support plate; and support wheels respectively installed at the four corners of the bottom surface of the support plate; wherein the trolley frame is installed on the top surface of the support plate.

[0012] Optionally, the trolley further includes: a protective plate installed on the support plate, located on both sides of the support wheels at the four corners along the length direction of the trolley; and a reinforcing rod installed between the protective plates on both sides.

[0013] Optionally, it further includes: a guide rail installed on the inner wall of the profile frame along the height direction of the trolley; a slider 100 slidably installed on the guide rail and connected to the lifting plate.

[0014] Optionally, it further includes: a limit pin installed on the inner wall of the profile frame and located at both ends of the guide rail.

[0015] Optionally, it further includes: a bearing seat, installed on the lifting plate and sleeved on the rotating shaft; and a bearing, installed between the bearing seat and the rotating shaft.

[0016] Optionally, it further includes: a sealing cover, which is installed on the end surface of the bearing seat and abuts against the bearing.

[0017] The lawn mowing device for greening projects provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The present disclosure provides a lawn mowing device for landscaping projects, comprising a trolley, a cam frame, an electric push rod, a lifting plate, a rotating shaft, a disc, a flexible rope, and a drive assembly. The trolley is used to contact the ground to achieve movement. The cam frame is mounted on the trolley to support and mount the electric push rod. The electric push rod is mounted on the top wall of the cam frame along the height of the trolley to provide driving force for lifting. The lifting plate is mounted on the movable end of the electric push rod and located inside the cam frame. Driven by the electric push rod, it moves along the height of the trolley. The rotating shaft is rotatably mounted on the lifting plate along the height of the trolley, facing the ground and capable of rotational motion relative to the lifting plate. The disc is mounted on the rotating shaft and rotates under the drive of the rotating shaft. Flexible ropes are connected to the disc and evenly distributed around the center of the disc to cut the lawn. The drive assembly is mounted between the lifting plate and the rotating shaft to drive the rotating shaft to rotate relative to the lifting plate, thereby driving the disc to rotate. Driven by an electric push rod, the disc can contact the ground, so that multiple soft ropes can cut the lawn on the ground.

[0019] The disclosed embodiment provides a lawn mowing device for landscaping projects. During use, by controlling the driving member, the rotating shaft can be rotated relative to the lifting plate, thereby driving the disc to rotate. At this time, under the action of centrifugal force, the multiple soft ropes around the center of the circle can be straightened, thereby mowing the lawn. Then, by controlling the electric push rod, the lifting plate can be driven to move in the height direction of the trolley. This in turn drives the rotating shaft to move up and down, and finally drives the disc up and down. In this way, the height of the multiple soft ropes around the center of the circle can be adjusted, and the lawn can be mowed to different heights. In addition, because the soft ropes will deform when they touch hard objects such as stones, they are not easy to break. Even if the soft ropes that rotate at high speed break, due to their small mass, they will not cause serious damage to the user or surrounding objects, thereby improving safety.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a scale limitation. In addition,

[0022] Figure 1 This is a schematic diagram of the main structure of a lawn mowing device for greening projects provided by an embodiment of the present disclosure when in operation;

[0023] Figure 2 This is a schematic diagram of the main structure of a lawn mowing device for greening projects provided by an embodiment of the present disclosure when idle;

[0024] Figure 3 This is a side structural diagram of a lawn mowing device for greening projects provided by an embodiment of the present disclosure;

[0025] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Reference numerals:

[0027] 10: Trolley; 11: Support plate; 12: Protective plate; 13: Reinforcement rod; 20: Profile frame; 30: Electric push rod; 40: Lifting plate; 50: Rotating shaft; 60: Disc; 70: Soft rope; 80: Drive assembly; 81: Motor base; 82: Drive motor; 83: Belt; 90: Guide rail; 100: Slider 100; 110: Limit pin; 120: Bearing seat; 130: Sealing cover. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] Combine Figures 1 to 4As shown, an embodiment of the present disclosure provides a lawn mowing device for greening projects, including a trolley 10, a cam frame 20, an electric push rod 30, a lifting plate 40, a rotating shaft 50, a disc 60, a soft rope 70 and a drive assembly 80. The trolley 10 is used to contact the ground to achieve a moving function. The cam frame 20 is installed on the trolley 10 and is used to support and install the electric push rod 30. The electric push rod 30 is installed on the top wall of the cam frame 20 along the height direction of the trolley 10 to provide a driving force to achieve a lifting function. The lifting plate 40 is installed on the moving end of the electric push rod 30 and is located on the inner side of the cam frame 20. Driven by the electric push rod 30, it moves along the height direction of the trolley 10. The rotating shaft 50 is rotatably installed on the lifting plate 40 along the height direction of the trolley 10. The rotating shaft 50 faces the ground and can rotate relative to the lifting plate 40. The disc 60 is mounted on the rotating shaft 50 and rotates under the drive of the rotating shaft 50. Flexible ropes 70 are connected to the disc 60 and evenly distributed around the center of the disc 60 for cutting the lawn. A drive assembly 80 is mounted between the lifting plate 40 and the rotating shaft 50 and is used to drive the rotating shaft 50 to rotate relative to the lifting plate 40, thereby driving the disc 60 to rotate, and ultimately driving the multiple flexible ropes 70 around the center of the circle to rotate. Driven by the electric push rod 30, the disc 60 can be pressed against the ground, allowing the multiple flexible ropes 70 to cut the lawn on the ground and trim it to a lower height.

[0037] The disclosed embodiments provide a lawn mowing device for landscaping projects. During use, the drive element is controlled to rotate the shaft 50 relative to the lifting plate 40, thereby driving the disc 60 to rotate as well. Centrifugal force then causes the multiple flexible cords 70 surrounding the center of the circle to remain stretched, thereby mowing the lawn. Subsequently, the electric push rod 30 is controlled to move the lifting plate 40 along the height of the trolley 10. This in turn drives the shaft 50 upward and downward, ultimately driving the disc 60 up and down. This allows the heights of the multiple flexible cords 70 surrounding the center of the circle to be adjusted, allowing the lawn to be mowed to different heights. Furthermore, because the flexible cords 70 deform when they strike hard objects such as rocks, they are less likely to break. Even if the flexible cords 70, rotating at high speed, break, their low mass prevents significant damage to the user or surrounding objects, thereby improving safety.

[0038] Optionally, combined Figures 1 to 3 As shown, the drive assembly 80 includes a motor base 81 and a drive motor 82. The motor base 81 is mounted on the lifting plate 40. Along the length of the trolley 10, the motor base 81 and the rotating shaft 50 are located on either side of the mold frame 20. The drive motor 82 is mounted on the motor base 81. The rotating shaft 50 is driven by the drive motor 82 to rotate.

[0039] In the disclosed embodiment, the drive assembly 80 includes a motor mount 81 mounted on the lifting plate 40 and a drive motor 82 mounted on the motor mount 81. The drive motor 82 provides the driving force to rotate the shaft 50 relative to the lifting plate 40, ultimately enabling height adjustment of the multiple flexible cords 70 around the center of the circle. Furthermore, the design of positioning the motor mount 81 and the shaft 50 on either side of the shaped frame 20 along the length of the trolley 10 places the center of gravity of the device in the middle of the trolley 10, thereby enhancing the stability of the entire device.

[0040] Optionally, combined Figures 1 to 3 As shown, the drive assembly 80 also includes a driving pulley, a driven pulley, and a belt 83. The driving pulley is mounted on the rotating end of the motor and rotates under the motor's drive. The driven pulley is mounted on the rotating shaft 50 and is used to drive the rotating shaft 50 to rotate. The belt 83 is installed between the driving pulley and the driven pulley and is located inside the mold frame 20 to transmit the driving force. The diameter of the driving pulley is smaller than that of the driven pulley.

[0041] In the disclosed embodiment, controlling the motor drives the driving pulley to rotate. This, in turn, drives the driven pulley to rotate via belt 83. This in turn drives the rotating shaft 50, and ultimately the disc 60. Furthermore, by designing the driving pulley with a smaller diameter than the driven pulley, the rotational speed is reduced, thereby increasing the output torque.

[0042] Optionally, combined Figures 1 to 3 As shown, the trolley 10 includes a support plate 11, a push frame, and support wheels. The push frame is mounted on the top surface of the support plate 11. The support wheels are mounted at the four corners of the bottom surface of the support plate 11. Among them, the profile frame 20 is mounted on the top surface of the support plate 11.

[0043] In the disclosed embodiment, the cart 10 comprises a support plate 11 for supporting and mounting a scissor frame 20, a push frame mounted on the top of the support plate 11, and support wheels mounted at the four corners of the bottom of the support plate 11. During use, the push frame is pushed, and the universal wheels at the four corners support the movement of the entire device, allowing the lawn to be mowed at different locations.

[0044] Optionally, combined Figures 1 to 3 As shown, the trolley 10 also includes a protective plate 12 and a reinforcing rod 13. The protective plate 12 is mounted on the support plate 11 and is located on both sides of the four corner support wheels along the length of the trolley 10 for protection. The reinforcing rod 13 is installed between the two side protective plates 12 to provide structural strength.

[0045] In the disclosed embodiment, the side guards 12 block flying grass clippings to prevent them from becoming entangled in the four corner support wheels. Furthermore, when the device is moving over uneven surfaces, the side guards 12 will first contact raised areas on the ground, providing a warning to the user and preventing collisions between the four corner support wheels and the raised areas. Furthermore, the use of reinforcement rods 13 enhances the structural strength of the side guards 12, preventing them from deforming under external forces.

[0046] Optionally, combined Figure 3 and Figure 4 As shown, the vehicle 10 further includes a guide rail 90 and a slider 100. The guide rail 90 is mounted on the inner wall of the mold frame 20 along the height direction of the vehicle 10, and is used to support and mount the slidable slider 100. The slider 100 is slidably mounted on the guide rail 90 and connected to the lifting plate 40 to serve as a guide support.

[0047] In the embodiment of the present disclosure, the guide rail 90 and the slider 100 provide a guide support to improve the stability of the lifting plate 40 during movement. At the same time, the radial force on the moving end of the electric push rod 30 is reduced, thereby increasing the service life of the electric push rod 30.

[0048] Optionally, combined Figure 3 and Figure 4 As shown, it also includes a limit pin 110. The limit pin 110 is installed on the inner wall of the mold frame 20 and is located at both ends of the guide rail 90.

[0049] In the disclosed embodiment, limit pins 110 are also mounted on the inner wall of the cam frame 20 and located at both ends of the guide rail 90. These limit pins 110 act as stoppers to prevent the slider 100 from falling off the guide rail 90. They also restrict the sliding range of the slider 100 relative to the guide rail 90, ultimately defining the highest and lowest positions of the multiple cords 70 around the center of the circle.

[0050] Optionally, combined Figures 1 to 3 As shown, the lifting plate 40 further includes a bearing seat 120 and a bearing. The bearing seat 120 is mounted on the lifting plate 40 and sleeved on the rotating shaft 50. The bearing is mounted between the bearing seat 120 and the rotating shaft 50.

[0051] In the embodiment of the present disclosure, a bearing seat 120 is further included, which is mounted on the lifting plate 40, and a bearing is mounted inside the bearing seat 120. The bearing is used to support and mount the rotatable shaft 50, reduce the friction force on the shaft 50, and improve the rotation accuracy of the shaft 50.

[0052] Optionally, combined Figures 1 to 3 As shown, a sealing cover 130 is further included. The sealing cover 130 is mounted on the end surface of the bearing seat 120 and abuts against the bearing.

[0053] In the embodiment of the present disclosure, a sealing cover 130 is further included, which is mounted on the end surface of the bearing seat 120 and abuts against the bearing. The sealing cover 130 is used to provide sealing protection and limit the bearing.

[0054] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A lawn mowing device for greening projects, characterized in that: include: small car; A profile frame, mounted on the trolley; An electric push rod is installed on the top wall of the molded frame along the height direction of the trolley; A lifting plate is installed at the moving end of the electric push rod and is located on the inner side of the mold frame; A rotating shaft is rotatably mounted on the lifting plate along the height direction of the trolley, with the rotating shaft facing the ground; a disc mounted on the rotating shaft; A soft rope is connected to the disc and is evenly distributed around the center of the disc; a driving assembly, installed between the lifting plate and the rotating shaft, and configured to drive the rotating shaft to rotate relative to the lifting plate; Wherein, under the driving of the electric push rod, the disc can be pressed against the ground.

2. A lawn mowing device for greening projects according to claim 1, characterized in that: The drive assembly includes: A motor base is mounted on the lifting plate, along the length direction of the trolley, and the motor base and the rotating shaft are located on both sides of the molded frame; A driving motor is mounted on the motor base; Wherein, the rotating shaft rotates under the drive of the driving motor.

3. The lawn mowing device for greening engineering according to claim 2, characterized in that: The drive assembly further includes: A driving pulley, mounted on the rotating end of the motor; A driven pulley mounted on the rotating shaft; A belt is installed between the driving pulley and the driven pulley and is located on the inner side of the profile frame; Wherein, the diameter of the driving pulley is smaller than the diameter of the driven pulley.

4. The lawn mowing device for greening engineering according to claim 1, characterized in that: The trolley comprises: Support plate; A hand push frame, mounted on the top surface of the support plate; Support wheels are respectively installed at the four corners of the bottom surface of the support plate; Wherein, the profile frame is installed on the top surface of the support plate.

5. The lawn mowing device for greening engineering according to claim 4, characterized in that: The trolley also includes: Protective plates are mounted on the support plate and are located on both sides of the support wheels at the four corners along the length direction of the trolley; The reinforcing rod is installed between the protective plates on both sides.

6. A lawn mowing device for greening projects according to any one of claims 1 to 5, characterized in that: Also includes: A guide rail is installed on the inner wall of the profile frame along the height direction of the trolley; The slider 100 is slidably mounted on the guide rail and connected to the lifting plate.

7. The lawn mowing device for greening engineering according to claim 6, characterized in that: Also includes: The limiting pins are installed on the inner wall of the profile frame and are located at both ends of the guide rail.

8. A lawn mowing device for greening projects according to any one of claims 1 to 5, characterized in that: Also includes: A bearing seat is mounted on the lifting plate and sleeved on the rotating shaft; The bearing is installed between the bearing seat and the rotating shaft.

9. The lawn mowing device for greening projects according to claim 8, characterized in that: Also includes: The sealing cover is mounted on the end surface of the bearing seat and abuts against the bearing.

Citation Information

Patent Citations

  • Artificial lawn trimming device

    CN219137166U