A mower with an adjustable height guard

Abstract

This utility model discloses a lawnmower with an adjustable height protective baffle, relating to the field of lawnmower technology. It includes a handle, one end of which is fixedly connected to a mounting frame. A drive mechanism is mounted on the bottom side of the mounting frame, comprising a control box and a mounting sleeve. In this utility model, the extension and retraction of a first electric push rod pushes a moving block to move horizontally, causing a rotating rod to rotate around a hinge point, which in turn causes a second baffle to rotate around a rotating collar. The extension and retraction of a second electric push rod pushes a second adjusting plate to slide inside the first baffle. The second adjusting plate then moves the first adjusting plate, achieving synchronous extension and retraction of the first and second adjusting plates, thus changing the overall protection range. By adjusting the protection width and height, it flexibly matches different mowing scenarios, effectively blocking grass clippings from flying and protecting surrounding plants and facilities.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a lawnmower with an adjustable height protective baffle. Background Technology

[0002] A lawnmower is a mechanical tool that uses power to drive cutting components (such as rotary blades or reciprocating blades) to trim lawns and vegetation.

[0003] For example, CN222869433U discloses an adjustable baffle for a lawnmower, which includes a support rod and a baffle assembly detachably connected to the support rod. The baffle assembly includes a mounting seat, which is sleeved on the support rod. A positioning bolt is detachably connected to the mounting seat, and the positioning bolt connects the support rod and the mounting seat.

[0004] In existing technologies, protective barriers are mostly fixed structures or only support a single height adjustment. Different specifications of barriers need to be disassembled and replaced to adapt to different scenarios. They cannot be flexibly adjusted according to the working environment. In complex scenarios, grass clippings can easily fly out from the gaps not covered by the barriers, which may not only damage surrounding facilities but also pose safety hazards to operators or nearby pedestrians. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing protective baffles are mostly fixed structures or only support a single height adjustment, and cannot be flexibly adjusted according to the working environment. Therefore, this invention proposes a lawnmower with an adjustable height protective baffle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lawnmower with an adjustable height protective baffle, comprising a handle, a mounting frame fixedly connected to one end of the handle, a drive mechanism mounted on the bottom side of the mounting frame, the drive mechanism comprising a control box and a mounting sleeve, the outer side of the control box being fixedly connected to the mounting frame, a protective mechanism mounted on the front side of the control box, the bottom of the control box being fixedly connected to one end of the mounting sleeve, an adjustment mechanism mounted on the outside of the mounting sleeve, the adjustment mechanism comprising a fixed sleeve, the inner ring surface of the fixed sleeve being fixedly connected to the outer surface of the mounting sleeve, a first baffle fixedly connected to the outer side of the fixed sleeve, a second baffle movably connected to the outer side of the first baffle, a rotating collar fixedly connected to one end of the second baffle, the inner ring surface of the rotating collar being rotatably connected to the outer surface of the fixed sleeve, a second adjustment plate slidably connected to the inner side of the first baffle, and a first adjustment plate slidably connected to the inner side of the second baffle.

[0007] Preferably, a second sliding groove is provided on one side of the first adjusting plate, a moving rod is slidably connected to the inner side of the second sliding groove, one end of the moving rod is fixedly connected to the outer side of the second adjusting plate, a second electric push rod is fixedly connected to the outer side of the second adjusting plate, and one side of the second electric push rod is fixedly connected to the outer side of the first baffle.

[0008] Preferably, a first sliding groove is provided on one side of the second baffle, and a sliding rod is slidably connected to the inner side of the first sliding groove, with one end of the sliding rod fixedly connected to one side of the first baffle.

[0009] Preferably, a push rod is fixedly connected to the top side of the second baffle, a rotating rod is rotatably connected to the outside of the push rod, a moving block is rotatably connected to one end of the rotating rod, a first electric push rod is fixedly connected to one side of the moving block, and one side of the first electric push rod is fixedly connected to one side of the first baffle.

[0010] Preferably, the protective mechanism includes a fixed plate, a telescopic rod is fixedly connected to one side of the fixed plate, a connecting frame is fixedly connected to one end of the telescopic rod, and a compression spring is sleeved on the outside of the telescopic rod, with the compression spring disposed between the fixed plate and the connecting frame.

[0011] Preferably, an inclined plate is fixedly connected to the end of the connecting frame, and a guide roller is rotatably connected to one side of the inclined plate.

[0012] Preferably, a connecting shaft is installed inside the mounting sleeve, one end of which is fixedly connected to a cutting blade, and the other end of the connecting shaft is installed inside the control box.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the first electric push rod extends and retracts, pushing the moving block to move horizontally, causing the rotating rod to rotate around the hinge point, causing the second baffle to rotate around the rotating collar. The second electric push rod extends and retracts, pushing the second adjusting plate to slide inside the first baffle. The second adjusting plate drives the first adjusting plate to move, realizing the synchronous extension and retraction of the first and second adjusting plates, changing the overall protection range. By adjusting the protection width and height, it can flexibly match different lawn mowing scenarios, effectively blocking grass clippings from flying and protecting surrounding plants and facilities.

[0015] 2. In this utility model, when the lawnmower moves forward, the inclined plate first contacts obstacles such as stones. The guide roller rotates to reduce friction. The obstacle pushes the inclined plate, causing the connecting frame to compress the telescopic rod and the compression spring, absorbing the impact force and preventing the cutting blade from directly colliding with hard objects. The obstacle is guided to both sides of the lawnmower, allowing the machine to bypass the obstacle, extending its service life and reducing the risk of injury from flying gravel. Attached Figure Description

[0016] Figure 1 This utility model presents a first three-dimensional structural diagram of a lawnmower with an adjustable height protective baffle.

[0017] Figure 2 This utility model presents a second three-dimensional structural diagram of a lawnmower with an adjustable height protective baffle;

[0018] Figure 3 This utility model provides a disassembly diagram of the adjustment mechanism of a lawnmower with an adjustable height protective baffle.

[0019] Figure 4 This utility model presents a schematic diagram of the connection structure of the protective mechanism of a lawnmower with an adjustable height protective baffle.

[0020] Legend: 1. Handle; 2. Mounting bracket; 3. Adjustment mechanism; 31. Fixed sleeve; 32. First baffle; 33. Sliding rod; 34. First electric push rod; 35. Moving block; 36. Rotating rod; 37. Push rod; 38. Rotating collar; 39. Second baffle; 310. First sliding groove; 311. First adjusting plate; 312. Moving rod; 313. Second sliding groove; 314. Second electric push rod; 315. Second adjusting plate; 4. Drive mechanism; 41. Control box; 42. Mounting sleeve; 43. Cutting blade; 44. Connecting shaft; 5. Protective mechanism; 51. Fixed plate; 52. Compression spring; 53. Connecting frame; 54. Inclined plate; 55. Guide roller; 56. Telescopic rod. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a lawnmower with an adjustable height protective baffle, including a handle 1. One end of the handle 1 is fixedly connected to a mounting frame 2. A drive mechanism 4 is mounted on the bottom side of the mounting frame 2. The drive mechanism 4 includes a control box 41 and a mounting sleeve 42. The outer side of the control box 41 is fixedly connected to the mounting frame 2. A protective mechanism 5 is mounted on the front side of the control box 41. The bottom of the control box 41 is fixedly connected to one end of the mounting sleeve 42. An adjustment mechanism 3 is mounted on the outside of the mounting sleeve 42. The adjustment mechanism 3 includes a fixed sleeve 31. The inner ring surface of the fixed sleeve 31 is fixedly connected to the outer surface of the mounting sleeve 42. A first baffle 32 is fixedly connected to the outer side of the fixed sleeve 31. A second baffle 39 is movably connected to the outer side of the first baffle 32. A rotating collar 38 is fixedly connected to one end of the second baffle 39. The inner ring surface of the rotating collar 38 is rotatably connected to the outer surface of the fixed sleeve 31. A second adjusting plate 315 is slidably connected to the inner side of the first baffle 32. A first adjusting plate 311 is slidably connected to the inner side of the baffle 39; a second sliding groove 313 is provided on one side of the first adjusting plate 311, a moving rod 312 is slidably connected to the inner side of the second sliding groove 313, one end of the moving rod 312 is fixedly connected to the outer side of the second adjusting plate 315, a second electric push rod 314 is fixedly connected to the outer side of the second adjusting plate 315, and one side of the second electric push rod 314 is fixedly connected to the outer side of the first baffle 32; a first sliding groove 310 is provided on one side of the second baffle 39, a sliding rod 33 is slidably connected to the inner side of the first sliding groove 310, and one end of the sliding rod 33 is fixedly connected to one side of the first baffle 32; a push rod 37 is fixedly connected to the top side of the second baffle 39, a rotating rod 36 is rotatably connected to the outside of the push rod 37, a moving block 35 is rotatably connected to one end of the rotating rod 36, a first electric push rod 34 is fixedly connected to one side of the moving block 35, and one side of the first electric push rod 34 is fixedly connected to one side of the first baffle 32.

[0024] The extension and retraction of the first electric push rod 34 pushes the moving block 35 to move horizontally, causing the rotating rod 36 to rotate around the hinge point, which in turn pushes the push rod 37, causing the second baffle 39 to rotate around the rotating collar 38 with the axis of the fixed sleeve 31 as the center. At this time, the sliding rod 33 slides synchronously in the first sliding groove 310 of the second baffle 39 to ensure the stability of the rotation process, causing the two second baffles 39 to deflect and adjust the protection range. The extension and retraction of the second electric push rod 314 pushes the second adjusting plate 315 to slide inside the first baffle 32. The moving rod 312 slides in the second sliding groove 313 of the first adjusting plate 311, and the second adjusting plate 315 drives the first adjusting plate 311 to move, realizing the synchronous extension and retraction of the first adjusting plate 311 and the second adjusting plate 315, changing the overall protection range. By adjusting the protection width and height, it can flexibly match different lawn mowing scenarios, effectively blocking grass clippings from flying and protecting surrounding plants and facilities.

[0025] Example 2: Figure 2 and Figure 4 As shown, the protective mechanism 5 includes a fixed plate 51, a telescopic rod 56 fixedly connected to one side of the fixed plate 51, a connecting frame 53 fixedly connected to one end of the telescopic rod 56, a compression spring 52 sleeved on the outside of the telescopic rod 56, and the compression spring 52 is disposed between the fixed plate 51 and the connecting frame 53; an inclined plate 54 fixedly connected to the end of the connecting frame 53, and a guide roller 55 rotatably connected to one side of the inclined plate 54; a connecting shaft 44 is installed inside the mounting sleeve 42, a cutting blade 43 is fixedly connected to one end of the connecting shaft 44, and the other end of the connecting shaft 44 is installed inside the control box 41.

[0026] The overall effect of this embodiment is as follows: when the lawnmower moves forward, the ramp 54 first contacts obstacles such as stones, and the guide roller 55 rotates to reduce friction. The obstacle pushes the ramp 54, causing the connecting frame 53 to compress the telescopic rod 56 and the compression spring 52, absorbing the impact force and preventing the cutting blade 43 from directly colliding with hard objects. The guide roller 55 can also rotate directly and embed itself inside the ramp 54. The rotation of the guide roller 55, combined with the tilt angle of the ramp 54, guides the obstacle to both sides of the lawnmower, allowing the machine to bypass the obstacle and continue operating. After buffering, the compression spring 52 pushes the connecting frame 53 to reset. Through buffering and guidance, the cutting blade 43 is prevented from colliding and being damaged, extending its service life and reducing the risk of injury from flying gravel. The motor in the control box 41 drives the connecting shaft 44 to rotate, causing the cutting blade 43 to rotate at high speed and cut the weeds below.

[0027] The operating method and working principle of this device are as follows: When the lawnmower moves forward, the inclined plate 54 first contacts obstacles such as stones. The guide roller 55 rotates to reduce friction. The obstacle pushes the inclined plate 54, causing the connecting frame 53 to compress the telescopic rod 56 and the compression spring 52, absorbing the impact force and guiding the obstacle to both sides of the lawnmower, allowing the machine to bypass the obstacle and continue working. The extension and retraction of the first electric push rod 34 pushes the moving block 35 to move horizontally, causing the rotating rod 36 to rotate around the hinge point, causing the second baffle 39 to rotate around the rotating collar 38. The extension and retraction of the second electric push rod 314 pushes the second adjusting plate 315 to slide inside the first baffle 32. The second adjusting plate 315 drives the first adjusting plate 311 to move, realizing the synchronous extension and retraction of the first adjusting plate 311 and the second adjusting plate 315, increasing the protection range and blocking grass clippings from flying. The motor in the control box 41 drives the connecting shaft 44 to rotate, causing the cutting blade 43 to rotate at high speed and cut the weeds below.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lawnmower with an adjustable height protective guard, comprising a handle (1), characterized in that: One end of the handle (1) is fixedly connected to a mounting bracket (2). A drive mechanism (4) is mounted on the bottom side of the mounting bracket (2). The drive mechanism (4) includes a control box (41) and a mounting sleeve (42). The outer side of the control box (41) is fixedly connected to the mounting bracket (2). A protective mechanism (5) is mounted on the front side of the control box (41). The bottom of the control box (41) is fixedly connected to one end of the mounting sleeve (42). An adjustment mechanism (3) is mounted on the outside of the mounting sleeve (42). The adjustment mechanism (3) includes a fixed sleeve (31). The inner ring surface of (31) is fixedly connected to the outer surface of the mounting sleeve (42). The outer side of the fixed sleeve (31) is fixedly connected to the first baffle (32). The outer side of the first baffle (32) is movably connected to the second baffle (39). One end of the second baffle (39) is fixedly connected to the rotating collar (38). The inner ring surface of the rotating collar (38) is rotatably connected to the outer surface of the fixed sleeve (31). The inner side of the first baffle (32) is slidably connected to the second adjusting plate (315). The inner side of the second baffle (39) is slidably connected to the first adjusting plate (311).

2. The lawnmower with height adjustable guard baffle as claimed in claim 1 wherein: A second sliding groove (313) is provided on one side of the first adjusting plate (311). A moving rod (312) is slidably connected to the inner side of the second sliding groove (313). One end of the moving rod (312) is fixedly connected to the outer side of the second adjusting plate (315). A second electric push rod (314) is fixedly connected to the outer side of the second adjusting plate (315). One side of the second electric push rod (314) is fixedly connected to the outer side of the first baffle (32).

3. The height-adjustable shielded lawnmower of claim 1, wherein: The second baffle (39) has a first sliding groove (310) on one side, and a sliding rod (33) is slidably connected to the inner side of the first sliding groove (310). One end of the sliding rod (33) is fixedly connected to one side of the first baffle (32).

4. The height-adjustable shielded lawnmower of claim 1, wherein: A push rod (37) is fixedly connected to the top side of the second baffle (39). A rotating rod (36) is rotatably connected to the outside of the push rod (37). A moving block (35) is rotatably connected to one end of the rotating rod (36). A first electric push rod (34) is fixedly connected to one side of the moving block (35). One side of the first electric push rod (34) is fixedly connected to one side of the first baffle (32).

5. The height-adjustable shielded lawnmower of claim 1, wherein: The protective mechanism (5) includes a fixed plate (51), a telescopic rod (56) is fixedly connected to one side of the fixed plate (51), a connecting frame (53) is fixedly connected to one end of the telescopic rod (56), and a compression spring (52) is sleeved on the outside of the telescopic rod (56). The compression spring (52) is located between the fixed plate (51) and the connecting frame (53).

6. The height adjustable guard decked lawn mower of claim 5, wherein: An inclined plate (54) is fixedly connected to the end of the connecting frame (53), and a guide roller (55) is rotatably connected to one side of the inclined plate (54).

7. The lawnmower with adjustable height protective baffle according to claim 1, characterized in that: The mounting sleeve (42) has a connecting shaft (44) installed inside. One end of the connecting shaft (44) is fixedly connected to a cutting blade (43), and the other end of the connecting shaft (44) is installed inside the control box (41).

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