Self-propelled mower

Abstract

The utility model relates to a mower, in particular to a self-propelled mower, which comprises a frame and a connecting frame mounted on the frame. A base is mounted on the connecting frame, and a movable blade is arranged on the base; fan blades are arranged on the connecting frame, and a rake roller is rotationally mounted on the connecting frame; the connecting frame is provided with a shearing mechanism, the shearing mechanism can drive the movable blade to horizontally slide in a reciprocating mode when the vehicle frame advances, and the sliding direction is perpendicular to the advancing direction of the vehicle frame so that grass higher than the base can be sheared. The connecting frame is provided with a raking and conveying mechanism adjacent to the shearing mechanism, and the raking and conveying mechanism can drive the raking roller to rotate when the shearing mechanism acts so as to rake and convey crushed grass sheared by the shearing mechanism to the direction deviating from the advancing direction of the frame; the connecting frame is further provided with a collecting mechanism, and the collecting mechanism can drive the fan blades to rotate when the raking and conveying mechanism acts so as to collect smashed grass.

Description

Technical Field

[0001] The utility model relates to a lawn mower, in particular to a self-propelled lawn mower. Background Art

[0002] The purpose of mowing the lawn is not only for aesthetics. More importantly, through pruning, tillering of the grass can be promoted, increasing the density, flatness and elasticity of the lawn, enhancing the abrasion resistance of the lawn, and prolonging the service life of the lawn. Timely pruning can also inhibit the flowering and seed setting of lawn weeds, causing the weeds to lose the opportunity to reproduce and gradually disappear.

[0003] Common mowing tools include an inclined hanging lawn mower, a backpack lawn mower, a push lawn mower and a self-propelled lawn mower. Different mowing tools should be used in different scenarios. If the grassland is not particularly flat and large in area, it is recommended to choose an inclined hanging lawn mower, which is more flexible to use. If the grassland is relatively flat, it is recommended to choose a push or self-propelled lawn mower, which is labor-saving and efficient.

[0004] Since the common self-propelled lawn mower only has the mowing function, the cut grass fragments will gather on the lawn. As time goes by, the grass fragments will wither and turn yellow, affecting the overall beauty of the lawn; at the same time, the grass fragments pressing on the lawn will also reduce the photosynthetic efficiency of the grass and shorten the service life of the lawn. Summary of the Invention

[0005] The purpose of the utility model is to provide a self-propelled lawn mower to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A self-propelled lawn mower includes a frame and a connecting frame mounted on the frame; a base is mounted on the connecting frame, and a movable blade is arranged on the base; a fan blade is arranged on the connecting frame and a rake roller is rotatably mounted.

[0008] A shearing mechanism is arranged on the connecting frame. When the frame moves forward, the shearing mechanism can drive the movable blade to make horizontal reciprocating sliding, and the sliding direction is perpendicular to the moving direction of the frame to shear the grass higher than the base.

[0009] A rake feeding mechanism adjacent to the shearing mechanism is arranged on the connecting frame. When the shearing mechanism operates, the rake feeding mechanism can drive the rake roller to rotate to rake the cut grass fragments to the direction away from the moving direction of the frame.

[0010] A collecting mechanism is further arranged on the connecting frame. When the rake feeding mechanism operates, the collecting mechanism can drive the fan blade to rotate to collect the cut grass fragments raked by the rake feeding mechanism.

[0011] The self-propelled mower as described above: The shearing mechanism includes a first driven shaft rotatably installed on the connecting frame. One end of the first driven shaft close to the base is provided with a rotating rod, and one end of the first driven shaft far from the base is provided with a small gear. One end of the rotating rod far from the first driven shaft is rotatably installed with a connecting rod. One end of the connecting rod far from the rotating rod is rotatably installed on the movable blade.

[0012] A through groove that slidably fits with the movable blade is formed on the base. A fixed blade that cooperates with the movable blade is installed on the base.

[0013] The self-propelled mower as described above: The raking and conveying mechanism includes a second driven shaft rotatably installed on the connecting frame. The second driven shaft is connected to the first driven shaft through a belt. The second driven shaft is connected to the raking roller through a bevel gear set.

[0014] Multiple groups of equally spaced raking teeth are installed on the raking roller.

[0015] The self-propelled mower as described above: A motor is installed on the vehicle frame. The collecting mechanism includes multiple groups of rotating shafts rotatably installed on the connecting frame. The rotating shafts are equally spaced and rotatably installed on the base. One of the rotating shafts is connected to the output end of the motor, and a first gear is installed on it. A second gear that meshes with both the first gear and the small gear is installed on the rotating shaft close to the first driven shaft.

[0016] The self-propelled mower as described above: The collecting mechanism further includes a guide groove formed on the base. A cross frame is installed on the rotating shaft. Multiple groups of fan blades are slidably fitted on the cross frame. A protruding column that slidably fits with the guide groove is installed on the fan blade.

[0017] The self-propelled mower as described above: A conveyor belt is rotatably installed on the vehicle frame and a hopper is installed. One end of the conveyor belt is closely attached to the collecting mechanism, and the other end is adjacent to the hopper.

[0018] The self-propelled mower as described above: Wheels are rotatably installed on the vehicle frame, and multiple groups of anti-slip grooves are formed on the wheels.

[0019] The self-propelled mower as described above: An armrest frame is installed on the vehicle frame, and a rubber handle is installed on the armrest frame.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: The lawn is trimmed to the same height by the shearing mechanism, and the cut grass is raked by the raking and feeding mechanism, avoiding the accumulation of cut grass on the trimming mechanism and reducing the trimming efficiency. The cut grass is collected by the collection mechanism and conveyed to the hopper through the conveyor belt, avoiding the accumulation of cut grass on the lawn, making the trimmed lawn beautiful and increasing the service life of the lawn. Since "trimming, raking and feeding, and collection" are synchronous, the lawn can be quickly trimmed into shape when the lawn mower is moving, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of a self-propelled lawn mower.

[0022] Figure 2 FIG. is a schematic structural diagram of another perspective of the self-propelled lawn mower.

[0023] Figure 3 is Figure 2 schematic structural diagram of the sectional view of.

[0024] Figure 4 FIG. is a schematic structural diagram of the connecting frame in the self-propelled lawn mower.

[0025] Figure 5 FIG. is a schematic structural diagram of the shearing mechanism in the self-propelled lawn mower.

[0026] Figure 6 FIG. is a schematic structural diagram of the base in the self-propelled lawn mower.

[0027] Figure 7 FIG. is a schematic structural diagram of the movable blade in the self-propelled lawn mower.

[0028] Figure 8 FIG. is a schematic structural diagram of the raking and feeding mechanism in the self-propelled lawn mower.

[0029] Figure 9 FIG. is a schematic structural diagram of the collection mechanism in the self-propelled lawn mower.

[0030] Figure 10 FIG. is a schematic structural diagram of the cross frame and the fan blade in the self-propelled lawn mower.

[0031] Figure 11 is Figure 10 schematic structural diagram of the explosion view of.

[0032] In the figure: 1. Frame; 101. Connecting frame;

[0033] 2. Motor;

[0034] 3. Rotating shaft; 301. Cross frame; 302. Fan blade; 303. Raised column; 304. First gear; 305. Second gear;

[0035] 4. First driven shaft; 401. Pinion

[0036] 5. Rotating rod;

[0037] 6. Connecting rod;

[0038] 7. Movable blade;

[0039] 8. Base; 801. Fixed blade; 802. Through groove; 803. Guide groove;

[0040] 9. Second driven shaft;

[0041] 10. Rake roller; 1001. Rake teeth;

[0042] 11. Conveyor belt;

[0043] 12. Hopper;

[0044] 13. Wheel. Detailed implementation mode

[0045] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0046] Please refer to Figures 1 to 11 , as an embodiment of the present utility model, the self-propelled mower, a self-propelled mower, includes a vehicle frame 1 and a connecting frame 101 installed on the vehicle frame 1; a base 8 is installed on the connecting frame 101, and a movable blade 7 is arranged on the base 8; a fan blade 302 and a rake roller 10 rotatably installed are arranged on the connecting frame 101;

[0047] A shearing mechanism is arranged on the connecting frame 101. The shearing mechanism can drive the movable blade 7 to make a horizontal reciprocating slide when the vehicle frame 1 is moving, and the sliding direction is perpendicular to the moving direction of the vehicle frame 1 to shear the grass higher than the base 8;

[0048] A rake feeding mechanism adjacent to the shearing mechanism is arranged on the connecting frame 101. The rake feeding mechanism can drive the rake roller 10 to rotate when the shearing mechanism acts to rake the shredded grass sheared by the shearing mechanism to a direction away from the moving direction of the vehicle frame 1;

[0049] A collecting mechanism is further provided on the connecting frame 101. The collecting mechanism can drive the fan blade 302 to rotate when the raking and feeding mechanism operates, so as to collect the crushed grass raked and fed by the raking and feeding mechanism.

[0050] In this embodiment, when the vehicle frame 1 travels, the movable blade 7 is driven to slide horizontally back and forth by the shearing mechanism. The grass higher than the set height is cut off by the action of the movable blade 7, and the cut crushed grass stays on the shearing mechanism. At this time, the raking roller 10 is driven to rotate by the raking and feeding mechanism to rake the gathered weeds in the direction away from the traveling direction of the vehicle frame 1. Through the mutual cooperation of the shearing mechanism and the raking and feeding mechanism, the lawn can be neatly and smoothly trimmed to the same height. During the shearing process, the cut crushed grass will be raked away and will not interfere with the normal operation of the shearing mechanism.

[0051] The collecting mechanism drives the fan blade 302 to rotate, and the rotating fan blade 302 collects the crushed grass raked by the raking and feeding mechanism, avoiding the cut crushed grass remaining on the lawn and improving the overall beauty of the lawn.

[0052] Since the shearing mechanism, the raking and feeding mechanism, and the collecting mechanism all operate synchronously, the synchronous operation of the three parts of "cutting, raking, and collecting" is realized, and the crushed grass can be collected in time. The whole machine runs continuously, can quickly trim the lawn, and there is no delay.

[0053] As a further solution of the present invention, the shearing mechanism includes a first driven shaft 4 rotatably installed on the connecting frame 101. A rotating rod 5 is installed at one end of the first driven shaft 4 close to the base 8, and a small gear 401 is installed at the end of the first driven shaft 4 far from the base 8. The rotating rod 5 is rotatably installed at one end far from the first driven shaft 4 with a connecting rod 6. The connecting rod 6 is rotatably installed at one end far from the rotating rod 5 on the movable blade 7.

[0054] A through groove 802 slidably fitted with the movable blade 7 is formed on the base 8. A fixed blade 801 cooperating with the movable blade 7 is installed on the base 8.

[0055] In this embodiment, when the small gear 401 rotates, it drives the first driven shaft 4 to rotate, thereby driving the rotating rod 5 to rotate. The rotating rotating rod 5 drives the movable blade 7 to reciprocate in the through groove 802 through the connecting rod 6. Since the through groove 802 has a limiting effect on the movable blade 7, the movable blade 7 will closely adhere to the base 8 and slide horizontally back and forth on the base 8.

[0056] Both the movable blade 7 and the fixed blade 801 are fixedly provided with serrated cutting edges. The serrated cutting edges shear each other through the horizontal reciprocating sliding of the movable blade 7. The grass entering between the cutting edges is cut off through the shearing action. Since the height of the base 8 is unchangeable, the height trimmed by the shearing mechanism during the shearing process is constant, making the overall height of the trimmed lawn consistent, and enhancing the flatness and beauty of the lawn.

[0057] As a further solution of the present utility model, the raking and feeding mechanism includes a second driven shaft 9 rotatably installed on the connecting frame 101. The second driven shaft 9 is connected to the first driven shaft 4 by a belt; the second driven shaft 9 is connected to the raking roller 10 by a bevel gear set;

[0058] A plurality of groups of equally spaced rake teeth 1001 are installed on the raking roller 10.

[0059] In this embodiment, when the first driven shaft 4 rotates, the second driven shaft 9 is driven to rotate by the belt. Under the action of the bevel gear set, the raking roller 10 will rotate. The rotation direction of the first driven shaft 4 is the same as that of the second driven shaft 9, while the rotation direction of the raking roller 10 is opposite to that of the second driven shaft 9.

[0060] When the raking roller 10 rotates, it will drive the rake teeth 1001 to rotate, and the rake teeth 1001 rake the shredded grass gathered on the shearing mechanism to the direction away from the traveling direction of the vehicle frame 1.

[0061] As a further solution of the present utility model, a motor 2 is installed on the vehicle frame 1; the collection mechanism includes a plurality of groups of rotating shafts 3 rotatably installed on the connecting frame 101. The plurality of groups of rotating shafts 3 are equally spaced and rotatably installed on the base 8; one of the rotating shafts 3 is connected to the output end of the motor 2, and a first gear 304 is installed thereon; a second gear 305 that meshes with both the first gear 304 and the pinion 401 is installed on the rotating shaft 3 close to the first driven shaft 4.

[0062] In this embodiment, the rotating shaft 3 close to the pinion 401 is set as the first rotating shaft 3, the rotating shaft 3 connected to the motor 2 is set as the second rotating shaft 3, the rotating shaft 3 adjacent to the second rotating shaft 3 is set as the third rotating shaft 3, and the rotating shaft 3 adjacent to the third rotating shaft 3 is set as the fourth rotating shaft 3.

[0063] Among them, the first rotating shaft 3 and the second rotating shaft 3 are meshed and connected through the first gear 304 and the second gear 305. The first rotating shaft 3 and the third rotating shaft 3 are connected by a belt. The second rotating shaft 3 and the fourth rotating shaft 3 are connected by a belt. The two belt transmission ratios are the same.

[0064] When the motor 2 drives the second rotating shaft 3 to rotate, the first rotating shaft 3 is driven to rotate through the meshing of the first gear 304 and the second gear 305. At this time, their rotation directions are opposite; the second rotating shaft 3 drives the fourth rotating shaft 3 to rotate through a belt. At this time, their rotation directions are the same; the first rotating shaft 3 drives the third rotating shaft 3 to rotate through a belt. At this time, their rotation directions are the same. At the same time, the first rotating shaft 3 drives the first driven shaft 4 to rotate through the meshing of the second gear 305 and the pinion 401, and their rotation directions are opposite.

[0065] In summary, the rotation directions of the first rotating shaft 3 and the second rotating shaft 3 are opposite, and the rotation directions of the third rotating shaft 3 and the fourth rotating shaft 3 are opposite. That is, when the motor 2 rotates, it can drive multiple groups of rotating shafts 3 to rotate at the same time. The first rotating shaft 3 drives the first driven shaft 4 to rotate through the meshing of the second gear 305 and the pinion 401, thereby driving the shearing mechanism and the raking mechanism to act.

[0066] As a further solution of the present invention, the collecting mechanism further includes a guide groove 803 opened on the base 8; a cross frame 301 is installed on the rotating shaft 3, and multiple groups of fan blades 302 are slidably fitted on the cross frame 301, and a convex column 303 slidably fitted with the guide groove 803 is installed on the fan blade 302.

[0067] In this embodiment, the guide groove 803 is a square groove. When the rotating shaft 3 drives the cross frame 301 to rotate, the cross frame 301 will drive the fan blade 302 to rotate, thereby driving the convex column 303 to slide in the guide groove 803.

[0068] When the convex column 303 is closest to the central rotating shaft 3 in the guide groove 803, the fan blade 302 is closest to the central rotating shaft 3. When the convex column 303 is farthest from the central rotating shaft 3, the distance between the fan blade 302 and the central rotating shaft 3 is the farthest. Due to the limitation of the square guide groove 803, the movement trajectory of the fan blade 302 is also square. The collecting mechanism using four small square trajectories can completely collect the crushed grass raked by the raking mechanism.

[0069] When the convex column 303 slides in the guide groove 803, the distance from the central rotating shaft 3 is constantly changing. Among them, the fan blades 302 on the first rotating shaft 3 and the second rotating shaft 3 cooperate with each other, and the fan blades 302 on the third rotating shaft 3 and the fourth rotating shaft 3 cooperate with each other, and the cooperation state with the first rotating shaft 3 and the second rotating shaft 3 is the same. Among them, when the fan blades 302 on the first rotating shaft 3 and the second rotating shaft 3 are closest, the collecting effect is the greatest.

[0070] As a further solution of the present invention, a conveyor belt 11 is rotatably installed on the frame 1 by a rope and a hopper 12 is installed. One end of the conveyor belt 11 is closely attached to the collecting mechanism, and the other end is adjacent to the hopper 12.

[0071] In this embodiment, the crushed grass collected by the collection mechanism is conveyed into the hopper 12 through the conveyor belt 11. One end of the hopper 12 close to the conveyor belt 11 is inclined, which can prevent the crushed grass from gathering in one place and affecting the loading effect of the hopper 12.

[0072] As a further solution of the present utility model, wheels 13 are rotatably installed on the frame 1, and a plurality of anti-slip grooves are provided on the wheels 13.

[0073] In this embodiment, driven by the power source, the wheels 13 will rotate, thereby pushing the frame 1 forward; the anti-slip grooves on the wheels 13 can reduce the chance of the wheels 13 slipping, which is beneficial to walking on the soft lawn.

[0074] As a further solution of the present utility model, a handrail frame is installed on the frame 1, and a rubber handle is installed on the handrail frame.

[0075] In this embodiment, the operator controls the steering of the frame 1 by controlling the handrail frame, and the rubber handle can increase the friction force, which is beneficial for the operator to stably control the lawn mower.

[0076] The above embodiments are exemplary rather than restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. A self-propelled lawn mower, comprising a frame (1), and a connecting frame (101) mounted on the frame (1); a base (8) is mounted on the connecting frame (101), and a movable blade (7) is arranged on the base (8); a fan blade (302) and a rotatably mounted rake roller (10) are arranged on the connecting frame (101); It is characterized in that The connecting frame (101) is provided with a shearing mechanism, which can drive the movable blade (7) to slide back and forth horizontally when the frame (1) moves, and the sliding direction is perpendicular to the moving direction of the frame (1), so as to shear grass that is higher than the base (8); The connecting frame (101) is provided with a raking mechanism adjacent to the shearing mechanism, and the raking mechanism can drive the raking roller (10) to rotate when the shearing mechanism is in motion, so as to rake the grass clippings cut by the shearing mechanism away from the moving direction of the vehicle frame (1); The connecting frame (101) is also provided with a collecting mechanism, which can drive the fan blades (302) to rotate when the raking mechanism is in operation, so as to collect the grass clippings raked by the raking mechanism.

2. A self-propelled lawn mower according to claim 1, characterized in that: The shearing mechanism comprises a first driven shaft (4) rotatably mounted on the connecting frame (101); a rotating rod (5) is mounted on an end of the first driven shaft (4) close to the base (8), and a pinion (401) is mounted on an end of the first driven shaft (4) away from the base (8); a connecting rod (6) is rotatably mounted on an end of the rotating rod (5) away from the first driven shaft (4); and an end of the connecting rod (6) away from the rotating rod (5) is rotatably mounted on the movable blade (7); The base (8) is provided with a through groove (802) that is slidably engaged with the movable blade (7); and a fixed blade (801) that cooperates with the movable blade (7) is mounted on the base (8).

3. A self-propelled lawn mower according to claim 2, characterized in that: The raking mechanism comprises a second driven shaft (9) rotatably mounted on the connecting frame (101), the second driven shaft (9) being connected to the first driven shaft (4) via a belt; the second driven shaft (9) being connected to the raking roller (10) via a bevel gear set; The rake roller (10) is provided with a plurality of groups of rake teeth (1001) distributed at equal intervals.

4. A self-propelled lawn mower according to claim 3, characterized in that: The frame (1) is provided with a motor (2); the collecting mechanism comprises a plurality of rotating shafts (3) rotatably mounted on the connecting frame (101), the rotating shafts (3) being equidistantly distributed and rotatably mounted on a base (8); one of the rotating shafts (3) is connected to an output end of the motor (2) and has a first gear (304) mounted thereon; and a second gear (305) meshing with both the first gear (304) and a pinion (401) is mounted on the rotating shaft (3) close to the first driven shaft (4).

5. A self-propelled lawn mower according to claim 4, characterized in that: The collecting mechanism further comprises a guide groove (803) provided on the base (8); a cross frame (301) is mounted on the rotating shaft (3); a plurality of groups of fan blades (302) are slidably engaged on the cross frame (301); and a protruding column (303) slidably engaged with the guide groove (803) is mounted on the fan blades (302).

6. The self-propelled lawn mower according to claim 1, characterized in that: The frame (1) is rotatably mounted with a conveyor belt (11) and a hopper (12); one end of the conveyor belt (11) is in close contact with the collecting mechanism, and the other end of the conveyor belt is in close proximity to the hopper (12).

7. The self-propelled lawn mower according to claim 1, characterized in that: A wheel (13) is rotatably mounted on the vehicle frame (1), and the wheel (13) has a plurality of sets of anti-skid grooves formed thereon.

8. The self-propelled lawn mower according to claim 1, characterized in that: An armrest is mounted on the frame (1), and a rubber handle is mounted on the armrest.

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