Lawn mower safe to use

Abstract

The invention relates to the technical field of mowers, and discloses a safe-to-use mowing machine which comprises a mowing machine body, a motor cabin is mounted in the mowing machine body, a motor is fixed in the motor cabin, and a blade is fixed to the output shaft end of the motor; prompting assemblies are arranged on the two sides of the mower body, and shielding assemblies are arranged on one sides of the prompting assemblies. The prompting assembly comprises two fixing frames, first sliding grooves are formed in the fixing frames, first sliding plates are slidably connected to the inner sides of the first sliding grooves, and when the surface of the grassland is uneven and rollers are suspended, first springs push the first sliding plates to slide downwards in the first sliding grooves, so that supporting rods, supporting frames and the rollers are driven to move downwards; the automatic adjusting mechanism helps the rollers to better adapt to the uneven ground, it is guaranteed that the mower body can still operate relatively stably under the complex terrain, the risk that the mower body operates abnormally or is damaged due to the uneven ground is reduced, and the applicability and stability of the mower body are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lawn mowers, and specifically to a lawn mower with safe use. Background Art

[0002] A lawn mower is also known as a weeding machine, a grass cutting machine, a lawn trimmer, etc. A lawn mower is a mechanical tool used for trimming lawns, vegetation, etc. It consists of a cutter head, an engine, walking wheels, a walking mechanism, blades, a handrail, and a control part. As a common garden mechanical equipment, lawn mowers are widely used in scenarios such as lawn trimming and grassland maintenance. Traditional lawn mowers usually consist of a lawn mower body, rollers, and blades installed at the bottom of the lawn mower body. During actual use, since the grassland surface is often not completely flat, there may be complex terrains such as potholes and protrusions.

[0003] During the operation of traditional lawn mowers, when the lawn mower passes over uneven ground or the edge of a step, the blades of the lawn mower may be accidentally exposed, and it is often difficult for users to detect in time. For example, when the lawn mower passes over the edge of a step and the roller rolls down the step, when the blade rotates at high speed to cut the grass leaves, it may hit hard objects such as soil blocks and stones hidden in the grass. When these hard objects are hit by the blade, they will fly out at a high speed. Due to the lack of effective protection measures in traditional lawn mowers, the flying soil or stones can easily cause harm to the surrounding personnel. Therefore, a lawn mower with safe use is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a lawn mower with safe use to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lawn mower with safe use, including a lawn mower body, an engine compartment is installed inside the lawn mower body, an electric motor is fixed inside the engine compartment, and a blade is fixed at the end of the output shaft of the electric motor;

[0006] Prompt components are provided on both sides of the lawn mower body, and a shielding component is provided on one side of the prompt component;

[0007] The prompt component includes two fixing frames. A first chute is opened inside the fixing frame. A first sliding plate is slidably connected to the inner side of the first chute. A support rod that movably penetrates 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 inner wall of the first chute. A first spring is connected between the top of the first sliding plate and the inner wall of the first chute. A protective cover is fixed to one side of the surface of the lawn mower body.

[0009] Preferably, warning lights and buzzers are respectively fixed on the inner wall of the protective cover, and the signal output end of the pressure switch is connected to the input ends of the warning lights and buzzers.

[0010] Preferably, a limiting block located on one side of the pressure switch is fixed on the inner wall of the first chute. When the first sliding plate moves downward along the first chute and contacts the pressure switch, the warning lights and buzzers are in a working state.

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

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

[0013] Preferably, a second sliding plate is slidably connected inside the second chute. Locking rods and pull rods are respectively fixed on both sides of the second sliding plate. When the locking rods are inserted into the inner side of the locking groove, the baffle is in an installed state. When the locking rods leave the inner side of the locking groove, the baffle is in a disassembled state.

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

[0015] Preferably, a second spring is sleeved on the outer side of the pull rod, and both ends of the second spring are respectively connected to the second sliding plate and one side of the second chute.

[0016] Preferably, wheels are rotatably connected to the front and rear sides of the bottom of the lawn mower body, and a collection box is connected to the grass outlet end of the tail of the lawn mower body.

[0017] Preferably, a handle is installed on one side of the top of the lawn mower body, a control switch is fixed on one side of the handle, and the output end of the control switch is electrically connected to the input end of the motor.

[0018] Compared with the prior art, the present invention adopts the above technical solutions and has the following technical effects:

[0019] 1. When the grassland surface is uneven and the roller is suspended, the first spring pushes the first slide plate to slide downward in the first chute, thereby driving the support rod, the support frame and the roller to move downward. The automatic adjustment mechanism helps the roller better adapt to the uneven ground, ensuring that the lawn mower body can still operate relatively stably in complex terrains, reducing the risk of abnormal operation or damage of the lawn mower body caused by uneven ground, and improving the applicability and stability of the lawn mower body.

[0020] 2. When the roller is suspended, the baffle will move downward under the drive of the support rod and block one side of the blade at the bottom of the lawn mower body. The corresponding baffle is located on one side of the blade respectively, so that the area where the blade may splash soil or stones is blocked, effectively preventing the soil or stones splashed by the impact of the blade from flying, greatly reducing the risk of the surrounding personnel being hit by the splashed objects, and significantly enhancing the safety of the mowing operation.

[0021] 3. By simply pulling the pull rod to one side, the relevant components can be driven to move, making the locking rod leave the locking groove, so that the damaged baffle can be easily removed and replaced. When replacing the new baffle, insert the limiting rod into the inner side of the limiting groove, then release the pull rod, and the second spring returns to its original state, pushing the second slide plate and the locking rod into the locking groove to complete the installation of the baffle. This simplifies the steps of baffle replacement, reduces the operation difficulty, and even non-professionals can quickly complete the baffle replacement work, improving the maintenance efficiency. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the first perspective of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the second perspective of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the third perspective of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the fourth perspective of the present invention;

[0027] Figure 5 It is a schematic front sectional view of the fixing frame of the present invention;

[0028] Figure 6 It is a schematic front sectional view of the protective cover of the present invention;

[0029] Figure 7 This is a schematic top-down sectional view of the connecting frame of the present invention.

[0030] Description of reference numerals: 1, lawn mower body; 2, wheels; 3, prompting component; 31, fixing frame; 32, rollers; 33, first chute; 34, first spring; 35, first sliding plate; 36, support rod; 37, pressure switch; 38, limiting block; 39, support frame; 310, protective cover; 311, warning light; 312, buzzer; 4, cover plate; 5, shielding component; 51, connecting frame; 52, baffle; 53, limiting groove; 54, locking rod; 55, second sliding plate; 56, second chute; 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 manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

[0033] Embodiment

[0034] Please refer to Figure 1-7, the present invention provides a technical solution: a safe-to-use lawn mower, including a lawn mower body 1, a counterweight is provided on the front side of the lawn mower body 1, and a collection box 6 is provided on the rear side, which can shield and protect against splashing mud or stones. There are only bodies on the left and right sides of the lawn mower body 1. An engine compartment 10 is installed inside the lawn mower body 1, an electric motor is fixed inside the engine compartment 10, and a blade 9 is fixed to the output shaft end of the electric motor; both the front and rear sides of the bottom of the lawn mower body 1 are rotatably connected to wheels 2. The grass outlet end at the tail of the lawn mower body 1 is connected to a collection box 6. One side of the top of the lawn mower body 1 is provided with a handle 7, 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 electric motor. Connect the power supply of the lawn mower body 1 to the municipal power supply, and then press the control switch 8. The control switch 8 controls the electric motor to rotate. The output shaft of the electric motor drives the blade 9 to rotate. The rotating blade 9 cuts the grass. Subsequently, under the rotation of the blade 9, part of the cut grass enters the inside of the collection box 6. The user can push the handle 7 to move the lawn mower body 1; prompt components 3 are provided on both sides of the lawn mower body 1, and a shielding component 5 is provided on one side of the prompt component 3; in this embodiment, when the lawn mower body 1 passes by the edge of a step and the wheels 2 roll down from the step, the baffle 52 is on both sides of the lawn mower body 1, forming a protective barrier, and flying objects cannot fly out to both sides, thus protecting the safety of the user and surrounding personnel.

[0035] When the lawn mower body 1 works on uneven ground or the edge of a step, causing the roller 32 to leave the ground, the alarm system can be triggered in time to remind the user that the blade 9 is in an exposed state. The prompt component 3 includes two fixing frames 31. A first chute 33 is opened inside the fixing frame 31. A first sliding plate 35 is slidably connected inside the first chute 33. A support rod 36 that movably penetrates 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; when the first sliding plate 35 slides to the bottom of the first chute 33 and contacts the pressure switch 37, the pressure switch 37 is triggered, and the abnormal state of the roller 32, that is, the uneven surface of the grassland, can be detected, providing an accurate basis for subsequent warnings. When the first sliding 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 chute 33. A first spring 34 is connected between the top of the first sliding plate 35 and the inner wall of the first chute 33. A protective cover 310 is fixed to one side of the surface of the lawn mower body 1. When the surface of the grassland is uneven, at this time, the first spring 34 pushes the first sliding 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 block on one side of the blade 9, preventing the blade 9 from being exposed and hitting and flying out mud or stones to injure surrounding personnel when the lawn mower body 1 is on an uneven grassland surface.

[0037] On the inner walls of the protective cover 310, a warning light 311 and a buzzer 312 are respectively fixed. The signal output end of the pressure switch 37 is connected to the input ends of the warning light 311 and the buzzer 312. When the first slide plate 35 slides at the bottom of the first chute 33 and contacts the pressure switch 37, the warning light 311 and the buzzer 312 generate sound and light prompts, informing the user that both sides of the lawn mower body 1 are in an uneven state and the blade 9 is in an exposed state. After the pressure switch 37 is triggered, the warning light 311 and the buzzer 312 generate sound and light prompts. The intuitive warning method enables the user to quickly understand the current safety hazards of the lawn mower body 1 and take measures in a timely manner, such as adjusting the position of the lawn mower body 1, stopping the mowing operation, etc., effectively avoiding the possible harm to personnel caused by the exposure of the blade 9 and ensuring the personal safety of the operator.

[0038] On the inner wall of the first chute 33, a limit block 38 is fixed on one side of the pressure switch 37. The limit 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 downward along the first chute 33 and contacts the pressure switch 37, the warning light 311 and the buzzer 312 are in a working state. Two fixing frames 31 are fixed on both sides of the lawn mower body 1. The top of the fixing frame 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.

[0039] The shielding assembly 5 includes two connecting frames 51 and a baffle 52. The material of the baffle 52 can be metal or plastic. A limit rod 59 is fixed on one side of the baffle 52, and a lock groove 510 is opened on one side of the limit rod 59. Limiting grooves 53 and second chutes 56 are respectively opened inside the connecting frames 51. When the roller 32 is suspended, at this time, the support rod 36 drives the connecting frames 51 and the baffle 52 to move downward, so that the baffle 52 shields one side of the bottom of the lawn mower body 1, preventing the soil or stones splashed by the impact of the blade 9 from flying out. The movement of the baffle 52 is associated with the state change of the roller 32. When the roller 32 encounters an uneven ground, the baffle 52 will automatically adjust its position to provide the best protection effect. The ability to automatically adapt to terrain changes enables the lawn mower body 1 to maintain an efficient and safe working state under different environmental conditions.

[0040] A second slide plate 55 is slidably connected to the inner side of the second chute 56. A locking rod 54 and a pull rod 58 are respectively fixed on both sides of the second slide plate 55. 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, only need to pull the pull rod 58 to one side. The pull rod 58 drives the second slide plate 55 to slide inside the second chute 56 and compresses the second spring 57, so that the locking rod 54 leaves 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. The outer side of the pull rod 58 movably penetrates 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. A second spring 57 is sleeved on the outer side of the pull rod 58. The two ends of the second spring 57 are respectively connected to one side of the second slide plate 55 and the second chute 56.

[0042] Working principle: Connect the power supply of the lawn mower body 1 to the municipal power supply. The motor output shaft drives the blade 9 to rotate. The rotating blade 9 cuts the grass blades. Some of the cut grass blades 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 lawn mower body 1.

[0043] When there are bumps on the uneven ground surface of the lawn, the rollers 32 will be suspended or under different pressures. At this time, the first spring 34 pushes the first slide plate 35 to slide downward in the first chute 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 rollers 32 to move downward. When the first slide plate 35 slides to the bottom of the first chute 33 and contacts the pressure switch 37, the pressure switch 37 is triggered. The signal output end of the pressure switch 37 is connected to the input ends of the warning light 311 and the buzzer 312. After being triggered, the warning light 311 and the buzzer 312 generate sound and light prompts to inform the user that both sides of the lawn mower body 1 are in an uneven state and the blade 9 is in an exposed state. [[ID=;11]]

[0044] When the rollers 32 are suspended, the support rod 36 not only drives the rollers 32 to move, but also drives the connecting frame 51 and the baffle 52 to move downward. After the baffle 52 moves downward, it blocks the bottom side of the lawn mower body 1, especially on both sides of the blade 9, preventing the blade 9 from hitting the flying soil or stones and splashing, 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 may splash out of the blade 9 can be fully blocked.

[0045] When the baffle 52 is damaged and needs to be replaced, the user pulls the pull rod 58 to one side. The pull rod 58 drives the second sliding plate 55 to slide inside the second chute 56 and compresses the second spring 57. When the second sliding plate 55 slides, it drives the locking rod 54 away from 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, insert the limiting rod 59 into the inside of the limiting groove 53, and then release the pull rod 58. After the second spring 57 resumes its deformation, it pushes the second sliding plate 55 to reset, so that the locking rod 54 automatically snaps into the locking groove 510 to complete the installation of the baffle 52;

[0046] Two fixing frames 31 are fixed on both sides of the lawn mower body 1. The top of the fixing frame 31 is connected with a cover plate 4 by bolts. When the cover plate 4 is removed, the first spring 34 can be disassembled or replaced, which is convenient for maintenance and upkeep.

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

[0048] When the roller 32 is suspended, the baffle 52 will move downward under the drive of the support rod 36 and block one side of the bottom blade 9 of the lawn mower body 1. The corresponding baffle 52 on one side is located on one side of the blade 9 respectively, so that the area where the blade 9 may splash soil or stones is blocked, effectively preventing the soil or stones splashed by the impact of the blade 9 from flying, greatly reducing the risk of the surrounding personnel being hit by the splashed objects, and significantly enhancing the safety of the mowing operation.

[0049] By simply pulling the pull rod 58 to one side, the relevant components can be driven to move, so that the locking rod 54 leaves the locking groove 510, thus easily removing the damaged baffle 52 for replacement. When replacing the new baffle 52, insert the limiting rod 59 into the inside of the limiting groove 53, and then release the pull rod 58. The second spring 57 resumes its original state and pushes the second sliding plate 55 and the locking rod 54 into the locking groove 510 to complete the installation of the baffle 52. This simplifies the steps of replacing the baffle 52, reduces the operation difficulty, and even non-professionals can quickly complete the replacement work of the baffle 52, improving the maintenance efficiency.

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

Claims

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

2. The safe-to-use lawn mower according to claim 1, wherein: A warning lamp (311) and a buzzer (312) are respectively fixed to the inner wall of the protective cover (310). The signal output end of the pressure switch (37) is connected to the input ends of the warning lamp (311) and the buzzer (312).

3. The safe-to-use lawn mower according to claim 2, characterized in that: A limiting block (38) located on one side of the pressure switch (37) is fixed to the inner wall of the first sliding groove (33). When the first sliding plate (35) moves downward along the first sliding groove (33) and contacts the pressure switch (37), the warning lamp (311) and the buzzer (312) are in a working state.

4. The safe-to-use lawn mower according to claim 3, wherein: The two fixing brackets (31) are fixed to both sides of the lawn mower body (1). A cover plate (4) is connected to the top of the fixing bracket (31) by bolts. When the cover plate (4) is removed, the first spring (34) can be disassembled or replaced.

5. The safe-to-use lawn mower according to claim 4, wherein: The shielding component (5) includes two connecting brackets (51) and a baffle (52). A limiting rod (59) is fixed to one side of the baffle (52). A locking groove (510) is formed on one side of the limiting rod (59). A limiting groove (53) and a second sliding groove (56) are respectively formed inside the connecting bracket (51).

6. The safe-to-use lawn mower according to claim 5, characterized in that: A second sliding plate (55) is slidably connected to the inner side of the second sliding groove (56). A locking rod (54) and a pull rod (58) are respectively fixed to both sides of the second sliding plate (55). When the locking rod (54) is inserted into the inner side of the locking groove (510), the baffle (52) is in an installed state. When the locking rod (54) leaves the inner side of the locking groove (510), the baffle (52) is in a disassembled state.

7. A lawn mower with safe use 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) movably penetrates one side of the connecting bracket (51). One side of the connecting bracket (51) is fixed to one side of the bottom of the support rod (36). The two baffles (52) are located on both sides of the blade (9).

8. A lawn mower with safe use according to claim 7, characterized in that: A second spring (57) is sleeved on the outer side of the pull rod (58). The two ends of the second spring (57) are respectively connected to the second sliding plate (55) and one side of the second sliding groove (56).

9. The safe-to-use lawn mower according to claim 1, characterized in that: Wheels (2) are rotatably connected to both the front and rear sides of the bottom of the lawn mower body (1), and a collection box (6) is connected to the grass outlet end at the tail of the lawn mower body (1).

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

Images