Hand-pushed lawn mower with grass-combing function

Abstract

The utility model relates to the technical field of lawn mowers, and in particular to a hand-push lawn mower with a grass combing function, comprising a frame, a motor device and a battery arranged on the frame, an armrest frame connected to the frame, and a combing device and a disc blade connected below the motor device. The frame comprises an axle frame and walking wheels rotatably connected to both ends of the axle frame, a mounting plate is fixed on the axle frame, the motor device and the battery are both fixed to the mounting plate, the motor device is connected to the front of the mounting plate, and the armrest frame is behind the motor device; the motor device comprises a motor and an output shaft of the motor, the output shaft passes through the mounting plate and is fixedly connected to the disc blade, the combing device is sleeved on the outside of the output shaft and fixedly connected to the bottom of the mounting plate, the combing device is located above the disc blade, and a baffle is fixedly connected below the axle frame, and the baffle is located behind the disc blade. The utility model can solve the technical problems that traditional hand-push lawn mowers cannot comb grass and the blades are easily damaged by bumps.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a hand-propelled lawn mower with a grass combing function. Background Art

[0002] A push mower is a mechanical tool used to mow lawns, vegetation, etc. Traditional push mowers rely on users to push forward, and use a motor to drive the blade assembly to rotate at high speed to mow the lawn and vegetation, which can save weeding operation time.

[0003] When mowing the grass, the blades of traditional push lawn mowers directly contact the grass vegetation. Because the grass tends to grow in an overlapping manner and the grass stems are very flexible, the high-speed rotating blades can easily cause the cut grass to be uneven, the grass to be twisted, and the cutting height to be inconsistent, affecting the appearance of the grass. In addition, there may be piles of soil and rocks in the grass, and the blades can easily hit the rocks when mowing the grass, causing damage to the blades, which not only reduces the service life of the blades, but also affects the efficiency of mowing. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a hand-push lawn mower with a grass combing function, which can comb the grass during the mowing process and can also protect the blades, thereby improving the mowing efficiency, limiting the mowing height, and improving the aesthetics of the grass after trimming. It can effectively solve the technical problems of traditional hand-push lawn mowers that the grass cannot be combed and the blades are easily damaged by bumps.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] In one technical solution of the utility model, a hand-pushed lawn mower with a grass combing function is provided, comprising a frame, a motor device and a battery arranged on the frame, an armrest frame is connected to the frame, and a combing device and a disc blade are connected below the motor device;

[0007] The frame includes an axle frame and running wheels rotatably connected to both ends of the axle frame, a mounting plate is fixed on the axle frame, a motor device and a battery are fixed on the mounting plate, and the motor device is connected to the front of the mounting plate, and the handrail frame is located behind the motor device;

[0008] The motor device includes an internal motor and an output shaft of the motor. The output shaft passes through a mounting plate and is fixedly connected to a disc blade. A combing device is sleeved on the outside of the output shaft and is fixedly connected to the bottom of the mounting plate. The combing device is located above the disc blade. A baffle is fixedly connected below the shaft frame and is located behind the disc blade.

[0009] By adopting the above technical solution, the disc blade is driven to rotate by a motor device, and the battery powers the motor device. The combing device is used to comb the grass and protect the disc blade at the same time, preventing the disc blade from touching stones and wearing the blade to affect the service life. The baffle can prevent the cut grass from splashing around with the blade, thereby preventing the operator from being injured.

[0010] Furthermore, the combing device includes a connecting sleeve and a comb tooth disk and a limiting ring fixedly connected to the connecting sleeve. The connecting sleeve is sleeved on the outside of the output shaft, and an oil-free bushing is sleeved between the connecting sleeve and the output shaft to improve the flexibility of rotation between the two. The top of the connecting sleeve is fixedly connected to the bottom of the mounting plate, and the middle of the connecting sleeve extends outward with a limiting step. The comb tooth disk is sleeved on the outside of the lower end of the connecting sleeve and abuts against the bottom of the limiting step. The limiting ring is sleeved on the outside of the connecting sleeve and abuts against the bottom of the comb tooth disk. The comb tooth disk is fixed to the connecting sleeve by matching the limiting ring with the limiting step. The connecting sleeve is sleeved on the outside of the output shaft and fixed to the bottom of the mounting plate. It does not affect the rotation of the disc blade driven by the motor, and can also ensure that the comb tooth disk is fixed above the disc blade, which plays the role of combing the grass and protecting the disc blade, thereby improving the mowing efficiency.

[0011] Furthermore, the outer diameter of the comb tooth disk is larger than the outer diameter of the disc blade, and a plurality of strip-shaped comb teeth are arranged at an edge of the comb tooth disk at equal intervals. Before the disc blade contacts the grass, the comb tooth disk first combs and straightens the messy grass with the strip-shaped comb teeth, so as to facilitate the disc blade close to the bottom of the comb tooth disk to cut the grass, limit the mowing height, and improve the mowing efficiency.

[0012] Furthermore, the disc blade is sleeved on the outside of the output shaft, a locking piece is fixed to the bottom end of the output shaft, and the locking piece abuts against the bottom of the disc blade to fix the disc blade and the output shaft together to form a synchronous linkage.

[0013] Furthermore, a diameter reduction step is provided at the bottom end of the output shaft, the disc blade abuts between the diameter reduction step and the locking member, and the three are fixedly connected by bolts.

[0014] Furthermore, the baffle ring is arranged on the rear side of the disc blade, and the height of the lower end of the baffle from the ground is less than the height of the disc blade from the ground, which can effectively prevent the cut grass from splashing around and prevent the user from touching the rotating disc blade during operation.

[0015] Furthermore, a support rod fixed to the axle frame is provided on the rear side of the baffle, and an auxiliary wheel is connected to the bottom of the support rod to assist in pushing the lawn mower to move quickly and maintain the stability of the lawn mower parked directly on the lawn.

[0016] Furthermore, the armrest is detachably connected to the shaft frame, and a start switch and a grip with a rough surface are provided on the armrest, and the start switch is electrically connected to the battery and the motor device. When the user pushes the lawn mower forward by holding the grip, the user controls the motor device to start or stop by pressing the start switch, so as to freely mow the lawn according to the lawn condition.

[0017] Furthermore, a heat dissipation channel is provided on the top of the motor device, which helps the internal motor to dissipate heat in time when working.

[0018] The lawn mower provided by the utility model has the following beneficial effects:

[0019] The hand-pushed lawn mower provided by the utility model has a grass combing function, which can comb the grass during the mowing process and can also protect the disc blade from touching stones and wearing the blade to reduce the service life. The mowing efficiency is high, the trimmed grass has good aesthetics, and the user operation safety performance is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a hand-push lawn mower with a grass-combing function in the utility model;

[0022] Figure 2 It is another three-dimensional structural schematic diagram of the hand-push lawn mower with grass combing function in the utility model;

[0023] Figure 3 It is a front view of the hand-push lawn mower with grass combing function in the utility model;

[0024] Figure 4 It is a schematic diagram of the exploded structure of the hand-push lawn mower with grass combing function in the utility model;

[0025] Figure 5 It is a partially cutaway schematic diagram of a hand-push lawn mower with a grass-combing function in the utility model;

[0026] Figure 6 yes Figure 5 A partial enlarged view of the area “A”;

[0027] Figure 7 It is another three-dimensional structural schematic diagram of the hand-push lawn mower with grass combing function in the utility model.

[0028] Explanation of the numbers in the figure: 1. Frame; 11. Axle frame; 12. Travel wheel; 13. Mounting plate; 2. Motor device; 21. Output shaft; 211. Reduction step; 22. Heat dissipation channel; 3. Battery; 4. Handrail; 41. Start switch; 42. Grip; 5. Combing device; 51. Connecting sleeve; 52. Comb tooth plate; 521. Strip comb teeth; 53. Limiting ring; 54. Limiting step; 55. Oil-free bushing; 6. Disc blade; 7. Baffle; 71. Support rod; 8. Locking piece; 9. Auxiliary wheel. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, it does not mean that the features of this utility model are limited to the embodiment.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top", "bottom", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to has a specific direction, is constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0031] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, a hand-push lawn mower with a grass combing function is provided, including a frame 1, a motor device 2 and a battery 3 arranged on the frame 1, an armrest frame 4 is connected to the frame 1, and a combing device 5 and a disc blade 6 are connected below the motor device 2.

[0034] refer to Figure 2 and Figure 4 The frame 1 includes an axle frame 11 and a running wheel 12 rotatably connected to both ends of the axle frame 11. A mounting plate 13 is fixed on the axle frame 11. The motor device 2 and the battery 3 are both fixed on the mounting plate 13, and the motor device 2 is connected to the front of the mounting plate 13 (the side away from the operator). The handrail frame 4 is located behind the motor device 2. The handrail frame 4 is detachably connected to the axle frame 11. The angle between the handrail frame 4 and the horizontal direction is 30 to 60 degrees. The handrail frame 4 is provided with a start switch 41 and a grip portion 42 with a rough surface. The start switch 41 is electrically connected to the battery 3 and the motor device 2 (omitted and not shown in the figure). When the user holds the grip portion 42 and pushes the lawn mower forward, the user controls the motor device 2 to start or stop by pressing the start switch 41, so as to freely mow the lawn according to the lawn conditions. A heat dissipation channel 22 is provided on the top of the motor device 2 to help the internal motor to dissipate heat in time when working.

[0035] refer to Figure 4 ,refer to Figures 4 to 6 The motor device 2 includes an internal motor and an output shaft 21 of the motor. The output shaft 21 passes through the mounting plate 13 and is fixedly connected to the disc blade 6. The combing device 5 is sleeved on the outside of the output shaft 21 and is fixedly connected to the bottom of the mounting plate 13. The combing device 5 is located above the disc blade 6. A baffle 7 is fixedly connected to the bottom of the shaft frame 11. The baffle 7 is located behind the disc blade 6.

[0036] refer to Figure 4 and Figure 6 The combing device 5 includes a connecting sleeve 51, a comb tooth disc 52 and a limiting ring 53 fixedly connected to the connecting sleeve 51. When in use, the connecting sleeve 51 is sleeved on the outside of the output shaft 21, the top of the connecting sleeve 51 is fixedly connected to the bottom of the mounting plate 13 by bolts, the middle of the connecting sleeve 51 extends outward with a limiting step 54, and the comb tooth disc 52 is sleeved on the outside of the lower end of the connecting sleeve 51 and abuts against the bottom of the limiting step 54. An oil-free bushing 55 is sleeved between the connecting sleeve 51 and the output shaft 21 to improve the flexibility of rotation between the two. The limiting ring 53 is sleeved on the outside of the connecting sleeve 51 and abuts against the bottom of the comb tooth disc 52, and the limiting step 54, the comb tooth disc 52 and the limiting ring 53 are fixedly connected by bolts. The comb tooth disk 52 is fixed on the connecting sleeve 51 by cooperating with the limiting ring 5 and the limiting step 54. The connecting sleeve 51 is sleeved on the outside of the output shaft 21 and fixed to the bottom of the mounting plate 13. It does not affect the rotation of the disc blade 6 driven by the motor, and can also ensure that the comb tooth disk 52 is fixed above the disc blade 6, so as to play the role of combing the grass and protecting the disc blade 6, thereby improving the mowing efficiency.

[0037] refer to Figure 3 and Figure 4The outer diameter of the comb tooth plate 52 is larger than the outer diameter of the disc blade 6. A plurality of strip-shaped comb teeth 521 are arranged at an equal interval around the edge of the comb tooth plate 52. Before the disc blade contacts the grass, the comb tooth plate 52 first combs and straightens the messy grass with the strip-shaped comb teeth 521, so that the disc blade close to the bottom of the comb tooth plate 52 can cut the grass, thereby improving the mowing efficiency.

[0038] refer to Figure 5 and Figure 6 The disc blade 6 is sleeved on the outside of the output shaft 21. The bottom end of the output shaft 21 is fixed with a locking member 8, which abuts against the bottom of the disc blade 6 to fix the disc blade 6 and the output shaft 21 together to form a synchronous linkage. The output shaft 21 and the locking member 8 are fixedly connected by a transversely inserted pin. The bottom end of the output shaft 21 is provided with a reduced diameter step 211, and the disc blade 6 abuts between the reduced diameter step 211 and the locking member 8, and the three are fixedly connected by vertical through bolts.

[0039] refer to Figure 1 and Figure 7 The baffle plate 7 is arranged on the outside of the rear side of the circular blade 6. The upper part of the baffle plate 7 is bent and extends to one side of the circular blade. The height of the lower end of the baffle plate 7 from the ground is less than the height of the circular blade 6 from the ground, which can effectively prevent the grass fragments from splashing after cutting, and at the same time prevent the user from touching the rotating circular blade during operation. A support rod 71 fixed to the shaft frame 11 is provided on the rear side of the baffle plate 7. The bottom of the support rod 71 is connected to an auxiliary wheel 9. The auxiliary wheel 9 can be a one-way wheel or a universal wheel, which is used to assist in pushing the lawn mower to move quickly and maintain the stability of the lawn mower when parked directly on the lawn.

[0040] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Therefore, any technical solution that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A hand-push lawn mower with a grass-combing function, characterized in that: The machine comprises a frame (1), a motor device (2) and a storage battery (3) arranged on the frame (1); an armrest frame (4) is connected to the frame (1); and a combing device (5) and a disc blade (6) are connected below the motor device (2); The frame (1) comprises an axle frame (11) and running wheels (12) rotatably connected to both ends of the axle frame (11); a mounting plate (13) is fixed on the axle frame (11); the motor device (2) and the storage battery (3) are both fixed on the mounting plate (13); the motor device (2) is connected to the front of the mounting plate (13); and the handrail frame (4) is located behind the motor device (2); The motor device (2) comprises an internal motor and an output shaft (21) of the motor. The output shaft (21) passes through the mounting plate (13) and is fixedly connected to the disc blade (6). The combing device (5) is sleeved on the outside of the output shaft (21) and is fixedly connected to the bottom of the mounting plate (13). The combing device (5) is located above the disc blade (6). A baffle (7) is fixedly connected below the shaft frame (11). The baffle (7) is located behind the disc blade (6).

2. A hand-push lawn mower with grass combing function according to claim 1, characterized in that: The combing device (5) comprises a connecting sleeve (51), a comb tooth disc (52) and a limiting ring (53) fixedly connected to the connecting sleeve (51); the connecting sleeve (51) is sleeved on the outside of the output rotating shaft (21); an oil-free bushing (55) is sleeved between the connecting sleeve (51) and the output rotating shaft (21); the top of the connecting sleeve (51) is fixedly connected to the bottom of the mounting plate (13); a limiting step (54) is extended outward from the middle of the connecting sleeve (51); the comb tooth disc (52) is sleeved on the outside of the lower end of the connecting sleeve (51) and abuts against the bottom of the limiting step (54); and the limiting ring (53) is sleeved on the outside of the connecting sleeve (51) and abuts against the bottom of the comb tooth disc (52).

3. A hand-push lawn mower with grass combing function according to claim 2, characterized in that: The outer diameter of the comb tooth disk (52) is greater than the outer diameter of the disc blade (6), and a plurality of strip-shaped comb teeth (521) distributed at equal intervals are arranged around the edge of the comb tooth disk (52).

4. A hand-push lawn mower with grass combing function according to claim 3, characterized in that: The disc blade (6) is sleeved on the outside of the output rotating shaft (21), and a locking member (8) is fixed to the bottom end of the output rotating shaft (21), and the locking member (8) abuts against the bottom of the disc blade (6).

5. A hand-push lawn mower with grass combing function according to claim 4, characterized in that: The bottom end of the output shaft (21) is provided with a reduced diameter step (211), the disc blade (6) abuts between the reduced diameter step (211) and the locking member (8), and the three are fixedly connected by bolts.

6. A hand-push lawn mower with grass combing function according to claim 1, characterized in that: The baffle plate (7) is arranged on the outside of the rear side of the circular blade (6), and the height of the lower end of the baffle plate (7) above the ground is less than the height of the circular blade (6) above the ground.

7. A hand-push lawn mower with grass combing function according to claim 1, characterized in that: A support rod (71) fixed to the shaft frame (11) is provided on the rear side of the baffle (7), and an auxiliary wheel (9) is connected to the bottom of the support rod (71).

8. The hand-push lawn mower with grass combing function according to claim 1, characterized in that: The armrest frame (4) is detachably connected to the shaft frame (11); a starting switch (41) and a gripping portion (42) with a rough surface are provided on the armrest frame (4); the starting switch (41) is electrically connected to the storage battery (3) and the motor device (2).

9. The hand-push lawn mower with grass combing function according to claim 1, characterized in that: A heat dissipation channel (22) is provided on the top of the motor device (2).

Images