A safe lawnmower

Abstract

This utility model relates to the field of lawnmower technology and discloses a safe lawnmower, including a lawnmower body. A motor compartment is installed inside the lawnmower body, and a motor is fixed inside the motor compartment. A blade is fixed to the output shaft end of the motor. Warning components are provided on both sides of the lawnmower body, and a shielding component is provided on one side of each warning component. Each warning component includes two fixed frames, with a first groove inside each frame. A first sliding plate is slidably connected to the inner side of the first groove. When the grass surface is uneven and the roller is suspended in the air, a first spring pushes the first sliding plate downwards within the first groove, thereby causing the support rod, support frame, and roller to move downwards. This automatic adjustment mechanism helps the roller better adapt to uneven ground, ensuring that the lawnmower body can still operate relatively stably in complex terrain, reducing the risk of abnormal operation or damage to the lawnmower body due to uneven ground, and improving the applicability and stability of the lawnmower body.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically to a safe lawnmower. Background Technology

[0002] A lawnmower, also known as a lawn trimmer, is a mechanical tool used for mowing lawns, vegetation, etc. It consists of a blade disc, engine, wheels, a walking mechanism, blades, a handle, and a control unit. As a common piece of garden machinery, lawnmowers are widely used in lawn mowing and lawn maintenance. Traditional lawnmowers typically consist of the mower body, rollers, and blades mounted at the bottom of the mower body. In actual use, lawn surfaces are often not completely flat, and may contain potholes, bumps, and other complex terrain.

[0003] When a traditional lawnmower is in operation, the blades may be accidentally exposed when it passes over uneven ground or the edge of steps, and users often cannot notice this in time. For example, when the lawnmower passes over the edge of a step, the rollers roll down the step, and the blades, which are cutting the grass at high speed, may hit clods of dirt, stones, or other hard objects hidden in the grass. When these hard objects are hit by the blades, they will be thrown out at a high speed. Since traditional lawnmowers lack effective protective measures, the splashed dirt or stones can easily cause injury to people in the vicinity. Therefore, a safe lawnmower is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a safe lawnmower to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safe lawnmower, comprising a lawnmower body, a motor compartment installed inside the lawnmower body, a motor fixed inside the motor compartment, and a blade fixed to the output shaft end of the motor;

[0006] The lawnmower body is equipped with a warning component on both sides, and a shielding component is provided on one side of the warning component;

[0007] The prompting component includes two fixing frames. The fixing frame has a first sliding groove inside. A first sliding plate is slidably connected to the inner side of the first sliding groove. A support rod that moves through the bottom of the fixing frame is fixed to the bottom of the first sliding plate. A support frame is fixed to the bottom of the support rod. A roller is rotatably connected to the bottom of the support frame.

[0008] A pressure switch is fixed to the bottom of the inner wall of the first chute, a first spring is connected between the top of the first slide plate and the inner wall of the first chute, and a protective cover is fixed to one side of the surface of the lawnmower body.

[0009] Preferably, the inner wall of the protective cover is fixed with a warning light and a buzzer, and the signal output terminal of the pressure switch is connected to the input terminal of the warning light and the buzzer.

[0010] Preferably, the first slide groove has a limiting block fixed on one side of the pressure switch on its inner wall. When the first slide plate moves downward along the first slide groove and contacts the pressure switch, the warning light and buzzer are in working condition.

[0011] Preferably, the two fixing brackets are fixed to both sides of the lawnmower body, and the top of the fixing brackets is connected to a cover plate by bolts. When the cover plate is removed, the first spring can be disassembled or replaced.

[0012] Preferably, the above-mentioned shielding assembly includes two connecting frames and a baffle. A limiting rod is fixed on one side of the baffle, and a locking groove is provided on one side of the limiting rod. A limiting groove and a second sliding groove are respectively provided inside the connecting frame.

[0013] Preferably, the second slide is slidably connected to the inner side of the second slide groove, and a locking rod and a pull rod are fixed on both sides of the second slide. When the locking rod is inserted into the inner side of the lock groove, the baffle is in the installed state, and when the locking rod leaves the inner side of the lock groove, the baffle is in the disassembled state.

[0014] Preferably, the limiting rod is adapted to the inner side of the limiting groove, the outer side of the pull rod moves through one side of the connecting frame, one side of the connecting frame is fixed to the bottom side of the support rod, and the two baffles are located on both sides of the blade.

[0015] Preferably, the pull rod is fitted with a second spring on its outer side, and the two ends of the second spring are respectively connected to one side of the second slide plate and the second slide groove.

[0016] Preferably, the lawnmower body has wheels rotatably connected to both the front and rear sides of its bottom, and a collection box is connected to the grass discharge end at the rear of the lawnmower body.

[0017] Preferably, the lawnmower body has a handle installed on one side of its top, and a control switch is fixed on one side of the handle. The output of the control switch is electrically connected to the input of the motor.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0019] 1. When the grass surface is uneven and the roller is suspended in the air, the first spring pushes the first slide plate to slide downward in the first slide groove, which in turn drives the support rod, support frame and roller to move downward. The automatic adjustment mechanism helps the roller to better adapt to the uneven ground, ensuring that the lawnmower body can still operate relatively stably in complex terrain, reducing the risk of abnormal operation or damage to the lawnmower body caused by uneven ground, and improving the applicability and stability of the lawnmower body.

[0020] Second, when the roller is suspended in the air, the baffle will move downward under the action of the support rod, covering one side of the blade at the bottom of the lawnmower body. The corresponding baffle is located on one side of the blade, so that the area where the blade may splash mud or stones is blocked. This can effectively prevent the blade from hitting the flying mud or stones, greatly reducing the risk of people around being hit by the flying objects and significantly enhancing the safety of lawnmowing operations.

[0021] Third, by simply pulling the lever to one side, the relevant components can be moved, causing the locking rod to leave the locking groove, thus easily removing the damaged baffle for replacement. When replacing the new baffle, insert the limiting rod into the limiting groove, then release the lever. The second spring returns to its original state, pushing the second slide plate and locking rod into the locking groove to complete the installation of the baffle. This simplifies the baffle replacement process, reduces the difficulty of operation, and even non-professionals can quickly complete the baffle replacement work, improving maintenance efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0024] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the fourth-view structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the main cross-sectional structure of the fixing frame of this utility model;

[0028] Figure 6 This is a schematic diagram of the main cross-sectional structure of the protective cover of this utility model;

[0029] Figure 7 This is a top view cross-sectional structural diagram of the connecting frame of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Lawn mower body; 2. Wheel; 3. Warning assembly; 31. Fixing frame; 32. Roller; 33. First slide groove; 34. First spring; 35. First slide plate; 36. Support rod; 37. Pressure switch; 38. Limit block; 39. Support frame; 310. Protective cover; 311. Warning light; 312. Buzzer; 4. Cover plate; 5. Covering assembly; 51. Connecting frame; 52. Baffle; 53. Limit groove; 54. Locking rod; 55. Second slide plate; 56. Second slide groove; 57. Second spring; 58. Pull rod; 59. Limiting rod; 510. Locking groove; 6. Collection box; 7. Handle; 8. Control switch; 9. Blade; 10. Motor compartment. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0033] Example

[0034] Please see Figure 1-7This utility model provides a technical solution: a safe lawnmower, including a lawnmower body 1. A counterweight is located on the front side of the lawnmower body 1, and a collection box 6 is located on the rear side to shield against splashed mud or stones. The left and right sides of the lawnmower body 1 are only the machine body. A motor compartment 10 is installed inside the lawnmower body 1, and a motor is fixed inside the motor compartment 10. A blade 9 is fixed to the output shaft end of the motor. Wheels 2 are rotatably connected to the front and rear sides of the bottom of the lawnmower body 1. The collection box 6 is connected to the grass discharge end of the lawnmower body 1. A handle 7 is installed on one side of the top of the lawnmower body 1, and a control switch 8 is fixed to one side of the handle 7. The output end of the control switch 8 is electrically connected to the motor input. Connect the power supply of the lawnmower body 1 to the municipal power supply, then press the control switch 8. The control switch 8 controls the motor to rotate, and the motor output shaft drives the blade 9 to rotate. The rotating blade 9 cuts the grass, and then, under the rotation of the blade 9, some of the cut grass enters the inside of the collection box 6. The user can push the handle 7 to move the lawnmower body 1. There are warning components 3 on both sides of the lawnmower body 1, and a shielding component 5 is provided on one side of the warning component 3. In this embodiment, when the lawnmower body 1 passes the edge of the step and the wheel 2 rolls down the step, the baffle 52 on both sides of the lawnmower body 1 forms a protective barrier, and the flying debris cannot fly to the sides, thereby protecting the safety of the user and the surrounding people.

[0035] When the lawnmower body 1 operates on uneven ground or the edge of steps, causing the roller 32 to lift off the ground, the alarm system can be triggered in time to remind the user that the blade 9 is exposed. The warning component 3 includes two fixing frames 31. The fixing frame 31 has a first slide groove 33 inside. A first slide plate 35 is slidably connected to the inner side of the first slide groove 33. A support rod 36 that moves through the bottom of the fixing frame 31 is fixed to the bottom of the first slide plate 35. A support frame 39 is fixed to the bottom of the support rod 36. The roller 32 is rotatably connected to the bottom of the support frame 39. When the first slide plate 35 slides to the bottom of the first slide groove 33 and contacts the pressure switch 37, the pressure switch 37 is triggered, which can detect the abnormal state of the roller 32, that is, the uneven grass surface, providing an accurate basis for subsequent warnings. When the first slide plate 35 moves upward and does not contact the pressure switch 37, the warning light 311 and the buzzer 312 are in a stopped working state.

[0036] A pressure switch 37 is fixed to the bottom of the inner wall of the first slide 33. A first spring 34 is connected between the top of the first slide plate 35 and the inner wall of the first slide 33. A protective cover 310 is fixed to one side of the surface of the lawnmower body 1. When the grass surface is uneven, the first spring 34 pushes the first slide plate 35 to slide downward, causing the support rod 36 to drive the support frame 39 and the roller 32 to move downward. At this time, the support rod 36 drives the baffle 52 to cover one side of the blade 9, so as to prevent the blade 9 from being exposed when the lawnmower body 1 is on an uneven grass surface, causing soil or stones to be thrown out and accidentally injuring people around.

[0037] Warning lights 311 and buzzers 312 are fixed to the inner wall of the protective cover 310. The signal output terminal of the pressure switch 37 is connected to the input terminals of the warning lights 311 and buzzers 312. When the first slide plate 35 slides to the bottom of the first slide groove 33 and contacts the pressure switch 37, the warning lights 311 and buzzers 312 produce sound and light prompts to inform the user that the two sides of the lawnmower body 1 are uneven and the blades 9 are exposed. After the pressure switch 37 is triggered, the warning lights 311 and buzzers 312 produce sound and light prompts. The intuitive warning method allows the user to quickly understand the current safety hazards of the lawnmower body 1 and take timely measures, such as adjusting the position of the lawnmower body 1 or stopping the mowing operation, effectively avoiding possible injury to personnel due to the exposure of the blades 9 and ensuring the personal safety of the operator.

[0038] A limiting block 38 located on one side of the pressure switch 37 is fixed to the inner wall of the first slide groove 33. The limiting block 38 is used to limit the movement range of the first slide plate 35 to prevent it from moving excessively and damaging the pressure switch 37 or other components. When the first slide plate 35 moves down along the first slide groove 33 and contacts the pressure switch 37, the warning light 311 and the buzzer 312 are in working condition. Two fixing brackets 31 are fixed to both sides of the lawnmower body 1. The top of the fixing brackets 31 is connected to the cover plate 4 by bolts. When the cover plate 4 is removed, the first spring 34 can be disassembled or replaced.

[0039] The shielding assembly 5 includes two connecting frames 51 and a baffle 52. The baffle 52 can be made of metal or plastic. A limit rod 59 is fixed on one side of the baffle 52, and a locking groove 510 is opened on one side of the limit rod 59. The connecting frames 51 have limit grooves 53 and a second sliding groove 56 respectively. When the roller 32 is suspended, the support rod 36 drives the connecting frame 51 and the baffle 52 to move downward, so that the baffle 52 covers the bottom side of the lawnmower body 1 to prevent the blade 9 from hitting the flying soil or stones. The movement of the baffle 52 is related to the state change of the roller 32. When the roller 32 encounters uneven ground, the baffle 52 will automatically adjust its position to provide the best protection effect. The ability to automatically adapt to changes in terrain allows the lawnmower body 1 to maintain an efficient and safe operating state under different environmental conditions.

[0040] A second slide plate 55 is slidably connected to the inner side of the second slide groove 56. A locking rod 54 and a pull rod 58 are fixed on both sides of the second slide plate 55 respectively. When the locking rod 54 is inserted into the inner side of the locking groove 510, the baffle 52 is in the installed state. When the locking rod 54 leaves the inner side of the locking groove 510, the baffle 52 is in the disassembled state. When the baffle 52 is damaged and needs to be replaced, simply pull the pull rod 58 to one side. The pull rod 58 drives the second slide plate 55 to slide inside the second slide groove 56 and compresses the second spring 57, causing the locking rod 54 to leave the locking groove 510, and the damaged baffle 52 can be removed.

[0041] The limiting rod 59 is adapted to the inner side of the limiting groove 53, and the outer side of the pull rod 58 moves through one side of the connecting frame 51. One side of the connecting frame 51 is fixed to the bottom side of the support rod 36. The corresponding side baffle 52 is located on one side of the blade 9. The outer side of the pull rod 58 is sleeved with a second spring 57. The two ends of the second spring 57 are respectively connected to one side of the second slide plate 55 and the second slide groove 56.

[0042] Working principle: Connect the power supply of the lawnmower body 1 to the municipal power supply. The motor output shaft drives the blade 9 to rotate. The rotating blade 9 cuts the grass. Some of the cut grass leaves enter the inside of the collection box 6 under the rotation of the blade 9. The user can push the handle 7 to move the lawnmower body 1.

[0043] When the grass surface is uneven and the ground is raised, the roller 32 will be suspended or subjected to different pressures. At this time, the first spring 34 pushes the first slide plate 35 to slide downward in the first slide groove 33. The first slide plate 35 drives the support rod 36 to move downward. The support rod 36 drives the support frame 39 and the roller 32 to move downward. When the first slide plate 35 slides to the bottom of the first slide groove 33 and contacts the pressure switch 37, the pressure switch 37 is triggered. The signal output terminal of the pressure switch 37 is connected to the input terminal of the warning light 311 and the buzzer 312. After being triggered, the warning light 311 and the buzzer 312 produce sound and light prompts to inform the user that the two sides of the lawnmower body 1 are in an uneven state and the blade 9 is in an exposed state.

[0044] When the roller 32 is suspended in the air, the support rod 36 not only drives the roller 32 to move, but also drives the connecting frame 51 and the baffle 52 to move downward. After the baffle 52 moves downward, it covers the bottom side of the lawnmower body 1, especially the two sides of the blade 9, to prevent the blade 9 from hitting the flying soil or stones and splashing, thus protecting the safety of the surrounding personnel. The two baffles 52 are located on both sides of the blade 9 to ensure that the soil or stones that the blade 9 may splash out can be completely covered.

[0045] When the baffle 52 is damaged and needs to be replaced, the user pulls the lever 58 to one side. The lever 58 drives the second slide plate 55 to slide inside the second slide groove 56 and compresses the second spring 57. When the second slide plate 55 slides, it drives the locking rod 54 to leave the locking groove 510. After the locking rod 54 leaves the locking groove 510, the baffle 52 can be removed for replacement. When replacing the new baffle 52, the limiting rod 59 is inserted into the limiting groove 53, and then the lever 58 is released. After the second spring 57 returns to its original deformation, it pushes the second slide plate 55 to reset, so that the locking rod 54 automatically locks into the locking groove 510, completing the installation of the baffle 52.

[0046] Two mounting brackets 31 are fixed to both sides of the lawnmower body 1. The top of the mounting brackets 31 is connected to a cover plate 4 by bolts. When the cover plate 4 is removed, the first spring 34 can be disassembled or replaced for easy maintenance.

[0047] In summary, when the grass surface is uneven and the roller 32 is suspended in the air, the first spring 34 pushes the first slide plate 35 to slide downward in the first slide groove 33, thereby driving the support rod 36, support frame 39 and roller 32 to move downward. The automatic adjustment mechanism helps the roller 32 to better adapt to the uneven ground, ensuring that the lawnmower body 1 can still operate relatively stably in complex terrain, reducing the risk of abnormal operation or damage to the lawnmower body 1 caused by uneven ground, and improving the applicability and stability of the lawnmower body 1.

[0048] When the roller 32 is suspended in the air, the baffle 52 will move downward under the action of the support rod 36, blocking one side of the blade 9 at the bottom of the lawnmower body 1. The corresponding baffle 52 is located on one side of the blade 9, which can block the area where the blade 9 may splash mud or stones, effectively preventing the blade 9 from hitting the flying mud or stones, greatly reducing the risk of surrounding personnel being hit by flying objects, and significantly enhancing the safety of lawnmowing operations.

[0049] By simply pulling the lever 58 to one side, the relevant components can be moved, causing the locking lever 54 to disengage from the locking groove 510, thus easily removing the damaged baffle 52 for replacement. When replacing the new baffle 52, the limiting rod 59 is inserted into the limiting groove 53, and then the lever 58 is released. The second spring 57 returns to its original state, pushing the second slide plate 55 and the locking lever 54 into the locking groove 510, completing the installation of the baffle 52. This simplifies the steps of replacing the baffle 52, reduces the difficulty of operation, and even non-professionals can quickly complete the replacement of the baffle 52, improving maintenance efficiency.

[0050] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A safe lawnmower, comprising a lawnmower body (1), characterized in that: The lawnmower body (1) has a motor compartment (10) installed inside, a motor is fixed inside the motor compartment (10), and a blade (9) is fixed at the output shaft end of the motor. The lawnmower body (1) is provided with a prompting component (3) on both sides, and a shielding component (5) is provided on one side of the prompting component (3); The prompting component (3) includes two fixing frames (31). The fixing frame (31) has a first sliding groove (33) inside. A first sliding plate (35) is slidably connected to the inside of the first sliding groove (33). A support rod (36) that movably passes through the bottom of the fixing frame (31) is fixed to the bottom of the first sliding plate (35). A support frame (39) is fixed to the bottom of the support rod (36). A roller (32) is rotatably connected to the bottom of the support frame (39). A pressure switch (37) is fixed at the bottom of the inner wall of the first slide (33), a first spring (34) is connected between the top of the first slide plate (35) and the inner wall of the first slide (33), and a protective cover (310) is fixed on one side of the surface of the lawnmower body (1).

2. A safe lawnmower according to claim 1, characterized in that: The inner wall of the protective cover (310) is fixed with a warning light (311) and a buzzer (312), and the signal output terminal of the pressure switch (37) is connected to the input terminal of the warning light (311) and the buzzer (312).

3. A safe lawnmower according to claim 2, characterized in that: The inner wall of the first slide (33) is fixed with a limiting block (38) located on one side of the pressure switch (37). When the first slide (35) moves down along the first slide (33) and contacts the pressure switch (37), the warning light (311) and the buzzer (312) are in working condition.

4. A safe lawnmower according to claim 3, characterized in that: The two fixing brackets (31) are fixed to both sides of the lawnmower body (1). The top of the fixing brackets (31) is connected to a cover plate (4) by bolts. When the cover plate (4) is removed, the first spring (34) can be disassembled or replaced.

5. A safe lawnmower according to claim 4, characterized in that: The shielding assembly (5) includes two connecting frames (51) and a baffle (52). A limiting rod (59) is fixed on one side of the baffle (52), and a locking groove (510) is provided on one side of the limiting rod (59). A limiting groove (53) and a second sliding groove (56) are respectively provided inside the connecting frame (51).

6. A safe lawnmower according to claim 5, characterized in that: The second slide (56) is slidably connected to the inner side of the second slide (56). The second slide (55) is fixed with a locking rod (54) and a pull rod (58) on both sides respectively. When the locking rod (54) is inserted into the inner side of the lock groove (510), the baffle (52) is in the installed state. When the locking rod (54) leaves the inner side of the lock groove (510), the baffle (52) is in the disassembled state.

7. A safe lawnmower according to claim 6, characterized in that: The limiting rod (59) is adapted to the inner side of the limiting groove (53), the outer side of the pull rod (58) moves through one side of the connecting frame (51), one side of the connecting frame (51) is fixed to the bottom side of the support rod (36), and the two baffles (52) are located on both sides of the blade (9).

8. A safe lawnmower according to claim 7, characterized in that: A second spring (57) is sleeved on the outside of the pull rod (58), and the two ends of the second spring (57) are respectively connected to one side of the second slide plate (55) and the second slide groove (56).

9. A safe lawnmower according to claim 1, characterized in that: The lawnmower body (1) has wheels (2) rotatably connected to both the front and rear sides of its bottom, and a collection box (6) is connected to the grass discharge end of the lawnmower body (1).

10. A safe lawnmower according to claim 1, characterized in that: A handle (7) is installed on one side of the top of the lawnmower body (1), and a control switch (8) is fixed on one side of the handle (7). The output end of the control switch (8) is electrically connected to the input end of the motor.

Images