Hobbing cutter type mower

Abstract

The utility model discloses a hob type mower, belongs to the field of mowers, solves the problems that the height of a hob type mower can be changed while the height of a hob blade is adjusted, and the adjustment is inconvenient, and adopts the technical scheme that a cutting component is arranged in an offset manner relative to the central axis of a rotating shaft through a connecting bracket; a through hole is formed in the machine shell, the adjusting bolt penetrates through the through hole and is in threaded connection with the adjusting knob, the support body is provided with scale marks used for displaying the height of the hob blade relative to the ground, and the adjusting knob drives the adjusting bolt to move relative to the machine shell when rotating, so that the movable support swings by a certain angle around the rotating shaft. Therefore, the height of the hob blade relative to the ground is adjusted, and an observation window for displaying scale marks is further arranged on the side, provided with the adjusting knob, of the machine shell. According to the utility model, the height of the hob blade can be independently adjusted, and a user can conveniently adjust.

Description

Technical Field

[0001] The utility model relates to the field of lawn mowers, in particular to a roller-type lawn mower. Background Art

[0002] In the prior art reel mowers, utility model patent CN208724399U discloses a dual-mode drum mower, including a push rod and a drum mower body, the drum mower body including a blade, a first transmission assembly, a second transmission assembly and two wheel bodies, the two wheel bodies are connected to the rotating shaft of the blade through the first transmission assembly and the second transmission assembly respectively, the drum mower body also includes a power supply assembly and a third transmission assembly, the power supply assembly is connected to the rotating shaft of the blade through the third transmission assembly, and the two working modes of the wheel body transmission and the power supply assembly transmission of the mower are independent of each other. Although the two working modes of the wheel body driving the blade and the power supply assembly driving the blade are realized, the height of the blade cannot be adjusted, and different cutting heights cannot be met. Of course, in the prior art, there are invention patents such as CN103797959A and CN109511355A that realize the adjustment of the roller blade height. However, most of the prior art uses complex structures such as four-bar linkage. When adjusting the height of the roller blade, the height of the lawn mower body will also change, affecting the user experience. In addition, the adjustment knob for adjusting the height of the roller blade is usually located on a different side from the display window that displays the height scale mark of the roller blade relative to the ground. The user's control is easily blocked by the lawn mower body, so the user needs to constantly turn his head to observe, further affecting the user experience. Utility Model Content

[0003] The utility model aims to provide a reel-type lawn mower, which overcomes the shortcomings of the prior art, realizes the independent adjustment of the height of the reel blade, and is convenient for users to adjust.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a reel-type lawn mower, comprising a walking wheel, a casing, a movable bracket, a cutting assembly, a motor assembly, and a height adjustment assembly, wherein the walking wheel is rotatably connected to the movable bracket through a rotating shaft, the movable bracket comprises a bracket body and a connecting bracket fixedly connected to the bracket body, the cutting assembly comprises a movable blade shaft and a reel blade arranged on the movable blade shaft, the movable blade shaft is rotatably arranged on the connecting bracket, the cutting assembly is offset relative to the central axis of the rotating shaft through the connecting bracket, the height adjustment assembly comprises an adjusting bolt protrudingly arranged on the bracket body and an adjusting knob located outside the casing, a through hole is opened on the casing, the adjusting bolt passes through the through hole and is threadedly connected to the adjusting knob, a scale mark for displaying the height of the reel blade relative to the ground is provided on the bracket body, when the adjusting knob is rotated, the adjusting bolt is driven to move relative to the casing, so that the movable bracket swings around the rotating shaft by a certain angle, and then the cutting assembly swings accordingly, so as to adjust the height of the reel blade relative to the ground, and an observation window displaying the scale mark is also provided on one side of the casing where the adjusting knob is provided.

[0005] After adopting the above technical scheme, the utility model has the following advantages: by setting the bracket main body and the connecting bracket, the cutting assembly is offset relative to the central axis of the rotating shaft through the connecting bracket, the adjusting knob is set on the casing, and the adjusting bolt passes through the through hole and is threadedly connected to the adjusting knob. When the user rotates the adjusting knob clockwise or counterclockwise, the distance between the adjusting bolt and the casing is shortened or moved away, thereby realizing the rotation of the cutting assembly relative to the rotating shaft to adjust the height of the moving blade relative to the ground, that is, the cutting height, thereby avoiding affecting the height of the whole machine of the reel-type lawn mower during the process of adjusting the cutting height. The height of the whole machine is supported by the walking wheels, which is more convenient for users to use and has a support structure. The frame body covers the top of the rolling blade, and the adjusting knob drives the cutting assembly to rotate through the adjusting bolt. The adjusting knob is arranged above the rolling blade instead of on both sides of the rolling blade, so that the adjusting knob is closer to the middle position of the fuselage assembly, which is more convenient for operation, and the frame body can also protect the cutting assembly. Secondly, the frame body is provided with a scale mark for displaying the height of the rolling blade relative to the ground, and the side of the casing where the adjusting knob is provided is also provided with an observation window displaying the scale mark, so that the user can observe the adjusting knob and the observation window at the same viewing angle at the same time, without turning the head to observe, which is convenient for users to adjust, especially for high-precision adjustments, which is conducive to making the adjustment more accurate.

[0006] Furthermore, the adjusting knob and the observation window are arranged on one side of the top surface of the housing, and the angle between the adjusting knob and the horizontal plane is α, α≤15°. The above technical solution is adopted to facilitate user observation, and the adjusting knob can be kept away from the rolling blade and the running wheel, making adjustment safer. In addition, the angle between the adjusting knob and the horizontal plane is reasonably set, which is convenient for the user to grasp the adjusting knob for adjustment.

[0007] Furthermore, the adjusting knob is arranged in the middle area of ​​the housing, so that the adjusting knob is far away from the running wheel. With the above technical solution, the adjusting knob is arranged in the middle area of ​​the protective housing, so that the adjusting knob is far away from the running wheel, and the adjustment is more convenient and safe.

[0008] Furthermore, a mudguard is provided between the cutting assembly and the walking wheel, and a limiting hole offset relative to the central axis of the rotating shaft is provided on the mudguard, and the movable knife shaft extends into the limiting hole and cooperates with the inner wall of the limiting hole to limit the rotation angle of the cutting assembly relative to the rotating shaft. The above-mentioned technical solution is adopted, and by providing the mudguard, it is helpful to reduce the contact of dirt, grass clippings and other debris with the cutting assembly, which is helpful to ensure the service life of the cutting assembly, and the mudguard is provided with a limiting hole offset relative to the central axis of the rotating shaft, and the movable knife shaft extends into the limiting hole and cooperates with the inner wall of the limiting hole to limit the rotation angle of the cutting assembly relative to the rotating shaft, so that the height of the cutting assembly relative to the ground can be adjusted within a suitable range.

[0009] Furthermore, the housing is fixedly connected to the fender, and the fender is rotatably connected to the rotating shaft. By adopting the above technical solution, the fender is reliably connected, and the rotating shaft is installed and supported.

[0010] Furthermore, a grass pressing roller is rotatably connected to the rear end of the housing. The above technical solution is adopted to realize the grass flattening and also to form a supporting effect for the housing.

[0011] Furthermore, the travel wheel is provided with an internal tooth, the moving blade shaft is provided with a one-way gear meshing with the internal tooth, and the one-way gear, the scale mark and the observation window are located on the arc surface of the concentric circle with the rotating shaft as the center. By adopting the above technical solution, while the travel wheel rotates, the travel wheel meshes with the one-way gear through the internal tooth to drive the moving blade shaft, thereby realizing manual cutting of the reel-type lawn mower. In addition, by adopting the one-way gear, the reaction force driving the travel wheel to rotate when the moving blade shaft rotates can also be avoided, thereby realizing the reel-type lawn mower cutting in situ. Finally, the one-way gear, the scale mark and the observation window are located on the arc surface of the concentric circle with the rotating shaft as the center, and the structural distribution is more reasonable.

[0012] Furthermore, a bottom shell is provided in the housing opposite to the bracket body, and a housing cavity for accommodating a motor assembly is formed between the bracket body and the bottom shell, wherein the motor assembly includes a motor provided with an output shaft, a driving gear is provided on the output shaft, and a driven gear is provided on the moving blade shaft, and the driving gear and the driven gear are connected by a transmission belt. The above technical solution is adopted, and the electric cutting of the reel-type lawn mower is realized by the motor drive.

[0013] Furthermore, the housing is further provided with a battery pack and a battery installation chamber for accommodating the battery pack, and the battery installation chamber, the adjustment knob and the observation window are arranged on the same side of the housing. With the above technical solution, the battery installation chamber, the adjustment knob and the scale mark are arranged on the same side of the housing, so that the user can adjust the height of the switching component while also observing the battery power, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of a reel-type lawn mower of the utility model;

[0016] Figure 2 It is a partial exploded view of the reel-type lawn mower of the utility model;

[0017] Figure 3 It is an exploded view of the reel-type lawn mower of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the cutting assembly of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the cutting assembly of the utility model from another perspective;

[0020] Figure 6 It is a partial cross-sectional view of the reel-type lawn mower of the utility model;

[0021] Figure 7 It is a cross-sectional view of the positioning piece of the utility model;

[0022] Figure 8 It is a structural schematic diagram of the reel-type lawn mower of the utility model (first height);

[0023] Fig. 9 For the utility model Figure 8 A cross-sectional view of a medium reel mower;

[0024] Fig.10 For the utility model Figure 8 A cross-sectional view of a reel mower from another perspective;

[0025] Fig.11 It is a structural schematic diagram of the reel-type lawn mower of the utility model (second height);

[0026] Fig.12 For the utility model Fig.11 A cross-sectional view of a medium reel mower;

[0027] Fig.13 For the utility model Fig.11A cross-sectional view of a reel mower from another perspective;

[0028] In the figure, 1, walking wheel; 2, handle; 3, bracket body; 4, cutting assembly; 5, motor assembly; 6, battery pack; 7, grass bag assembly; 11, internal gear; 21, switch; 22, safety lock; 31, adjustment knob; 311, positioning piece; 32, fuselage body; 33, battery installation room; 34, grass collecting door; 35, observation window; 36, grass pressing roller; 37, handle connecting piece; 38, mud guard; 41, one-way gear; 42, left side plate; 43, connecting bracket; 4 31. Rotating shaft; 432. Bottom shell; 44. Slide lock key; 45. Rolling blade; 451. Moving blade shaft; 452. Moving blade; 453. Fixed blade; 46. Driven gear; 47. Transmission belt; 48. Right side plate; 49. Bracket body; 491. Scale mark; 492. Adjusting bolt; 51. Motor; 52. Motor bracket; 53. Transmission gear box; 54. Output shaft; 55. Transmission box body; 56. Driving gear; 57. End cover; 71. Bag handle; 72. Grass collecting bag. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0030] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0031] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0032] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0033] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0034] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0035] like Figures 1 to 13 As shown, the utility model provides a reel-type lawn mower, including a walking wheel 1, a casing 3, a movable bracket, a cutting assembly 4, a motor assembly 5, and a height adjustment assembly. The rear end of the casing 3 is rotatably connected to a grass pressing roller 36, the walking wheel 1 is rotatably connected to the movable bracket through a rotating shaft 431, the movable bracket includes a bracket body 49 and a connecting bracket 43 fixedly connected to the bracket body 49, the cutting assembly 4 includes a moving blade shaft 451 and a reel blade 45 arranged on the moving blade shaft 451, the moving blade shaft 451 is rotatably arranged on the connecting bracket 43, the cutting assembly 4 is offset relative to the central axis of the rotating shaft 431 by the connecting bracket 43, and the height adjustment assembly includes a protruding An adjusting bolt 492 is arranged on the bracket body 49 and an adjusting knob 31 is located outside the casing 3. A through hole is opened on the casing 3. The adjusting bolt 492 passes through the through hole and is threadedly connected with the adjusting knob 31. A scale mark 491 for displaying the height of the rolling blade 45 relative to the ground is provided on the bracket body 49. When the adjusting knob 31 is rotated, the adjusting bolt 492 is driven to move relative to the casing 3, so that the movable bracket swings around the rotating shaft 431 at a certain angle, and then the cutting assembly 4 swings accordingly, so as to adjust the height of the rolling blade 45 relative to the ground. One side of the casing 3 where the adjusting knob 31 is provided is also provided with an observation window 35 displaying the scale mark 491.

[0036] With such a design, by setting the bracket body 49 and the connecting bracket 43, the cutting assembly 4 is offset relative to the central axis of the rotating shaft 431 through the connecting bracket 43, the adjusting knob 31 is set on the casing 3, and the adjusting bolt 492 passes through the through hole and is threadedly connected to the adjusting knob 31. When the user rotates the adjusting knob 31 clockwise or counterclockwise, the user moves the distance between the adjusting bolt 492 and the casing 3 closer or farther, thereby realizing the rotation of the cutting assembly 4 relative to the rotating shaft 431 to adjust the height of the moving blade 452 relative to the ground, that is, the cutting height, thereby avoiding affecting the height of the whole machine of the reel mower during the process of adjusting the cutting height. The height of the whole machine is supported by the walking wheel 1 and the grass pressing roller 36. Because the walking wheel 1, the grass pressing roller 36 and the body assembly do not change position during the process of adjusting the cutting height, the above-mentioned The technical effect is that it is more convenient for users to use, and the bracket body 49 covers the top of the rolling blade 45. The adjusting knob 31 drives the cutting assembly 4 to rotate through the adjusting bolt 492. The adjusting knob 31 is arranged above the rolling blade 45, rather than on both sides of the rolling blade 45, so that the adjusting knob 31 is closer to the middle position of the fuselage assembly, which is more conducive to operation, and the bracket body 49 can also have a protective effect on the cutting assembly 4. Secondly, the bracket body 49 is provided with a scale mark 491 for displaying the height of the rolling blade 45 relative to the ground, and the side of the casing 3 where the adjusting knob 31 is provided is also provided with an observation window 35 displaying the scale mark 491, so that the user can observe the adjusting knob 31 and the observation window 35 at the same viewing angle at the same time, without turning the head to observe, which is convenient for users to adjust, especially for high-precision adjustments, which is conducive to making the adjustment more accurate.

[0037] It should be noted that the observation window 35 is close to the running wheel 1 and at least partially overlaps with the scale mark 491 , and is used to display the scale of the scale mark 491 .

[0038] Preferably, the adjustment knob 31 and the scale mark 491 are arranged on one side of the top surface of the housing 3, which is convenient for the user to observe, so that the adjustment knob 31 is away from the roller blade 45 and the walking wheel 1, and the adjustment is safer. In addition, the angle between the adjustment knob 31 and the horizontal plane is α, α≤15°. If α>15°, the vertical height of the lawn mower will be increased, and the space occupied will be larger. Preferably, α=10 degrees, which is convenient for the user to grasp the adjustment knob 31 for adjustment. Of course, α can also be a suitable angle such as 5°, 8°, 12°, etc.

[0039] For further convenience of adjustment, the adjusting knob 31 is arranged in the middle area of ​​the housing 3, so that the adjusting knob 31 is far away from the running wheel 1. With such a design, the adjusting knob 31 is far away from the running wheel 1, and the adjustment is more convenient and safe.

[0040] Specifically, the housing 3 is provided with a positioning piece 311, which is fixedly connected to the housing 3. The positioning piece 311 is provided with a waist-shaped groove in the up-down direction. The adjusting bolt 492 passes through the waist-shaped groove from the back to the front and is threadedly connected with the adjusting knob 31. When adjusting from the right side to the left side, Figures 8 to 10 As shown, when the adjusting knob 31 is rotated clockwise, the adjusting bolt 492 moves forward to drive the cutting assembly 4 to rotate counterclockwise to increase the height of the rolling blade 45, thereby adjusting the cutting height. At this time, the rolling blade 45 is in the first position, and the height is h1; Figures 11 to 13 As shown, when the adjusting knob 31 is rotated counterclockwise, the adjusting bolt 492 moves backward to drive the cutting assembly 4 to rotate clockwise to lower the height of the rolling blade 45, thereby adjusting the cutting height. At this time, the rolling blade 45 is in the second position with a height of h2.

[0041] It should be noted that the adjusting knob 31 may be a nut. Since the abutting position between the nut and the boss is fixed, the adjusting bolt 492 can be moved relative to the nut by rotating the nut.

[0042] Furthermore, the housing 3 is provided with a battery pack 6 and a battery installation chamber 33 for accommodating the battery pack 6, and the battery installation chamber 33, the adjustment knob 31 and the observation window 35 are arranged on the same side of the housing 3. With such a design, the battery installation chamber 33, the adjustment knob 31 and the scale mark 491 are arranged on the same side of the housing 3, so that the user can adjust the height of the switching component while also observing the battery power, which is more convenient to use.

[0043] It should be noted that the battery installation chamber 33 may be a transparent structure, so that the power level of the battery pack 6 can be observed intuitively. Of course, a display window for displaying the power level of the battery pack 6 may also be provided on the battery installation chamber 33 .

[0044] When the height of the roller blade 45 is too high, the cutting effect is poor, and when the height of the roller blade 45 is too low, the roller blade 45 is easy to contact the ground and be damaged. Therefore, a mud guard 38 is provided between the cutting assembly 4 and the walking wheel 1. The mud guard 38 is provided with a limiting hole offset relative to the central axis of the rotating shaft 431. The movable blade shaft 451 extends into the limiting hole and cooperates with the inner wall of the limiting hole to limit the rotation angle of the cutting assembly 4 relative to the movable blade shaft 451. Such a design is helpful to reduce the contact of dirt, grass clippings and other debris with the cutting assembly 4 by providing the mud guard 38, which is helpful to ensure the service life of the cutting assembly 4. In addition, the mud guard 38 is provided with a limiting hole offset relative to the central axis of the rotating shaft 431. The movable blade shaft 451 extends into the limiting hole and cooperates with the inner wall of the limiting hole to limit the rotation angle of the cutting assembly 4 relative to the rotating shaft 431, so that the height of the roller blade 45 relative to the ground can be adjusted within a suitable range.

[0045] And, the housing 3 is fixedly connected to the fender 38, and the fender 38 is rotatably connected to the rotating shaft 431. Such a design enables the fender 38 to be reliably connected, and the rotating shaft is installed and supported.

[0046] It should be noted that the fenders 38 are symmetrically arranged on both sides of the housing 3 , and their outer contour is a circle similar to the running wheel 1 .

[0047] It should be noted that the limiting hole is an arc-shaped hole, and the arc-shaped hole can be set on an arc surface with the rotating shaft 431 as the center.

[0048] In order to collect grass clippings, a grass collecting bag assembly 7 is provided on the housing 3 at the rear of the cutting assembly 4. The grass collecting bag assembly 7 is open at the top and includes a bag handle 71 for the operator to hold and a grass collecting bag 72 for collecting the cut grass clippings. A grass collecting door 34 for covering the opening of the grass collecting bag 72 is provided at the rear of the housing 3. The grass collecting door 34 is pivotally connected to the housing 3. When the grass collecting door 34 is closed downward, the grass clippings cut by the cutting assembly 4 are blocked by the grass collecting door 34 and cannot enter the grass collecting bag 72. When the grass collecting door 34 is opened backward, the grass clippings enter the grass collecting bag 72. The grass pressing roller 36 is parallel to the rotating shaft 431.

[0049] The housing 3 further includes a body 32 and a handle connector 37. The body 32 is located at the bottom of the battery installation chamber 33, has a substantially arc-shaped outer contour along the left-right direction, and is located on the upper side of the cutting assembly 4. The handle connector 37 is located on both sides of the body 32 and protrudes upward. The handle connector 37 is fixedly connected to the connecting rod of the handle 2, and can withstand the thrust transmitted to the reel mower by the user through the handle 2, so as to achieve a small degree of swing freedom.

[0050] In order to make the operation safer, the handle 2 is provided with a switch element 21 for controlling the motor 51 and a safety lock 22 to prevent false triggering. The so-called false triggering means that the switch element 21 can be triggered only after the user opens the safety lock 22, thereby triggering the motor 51 to start, otherwise the motor 51 will not start.

[0051] In order to realize the manual and electric modes, the walking wheel 1 is provided with an internal gear 11, the moving knife shaft 451 is provided with a one-way gear 41 meshing with the internal gear 11, and the one-way gear 41, the scale mark 491 and the observation window 35 are located on the arc surface of the concentric circle with the rotating shaft 431 as the center. In addition, the housing 3 is also provided with a bottom shell 432 opposite to the bracket body 49, and a receiving cavity for accommodating the motor assembly 5 is formed between the bracket body 49 and the bottom shell 432. The motor assembly 5 includes a motor 51 provided with an output shaft 54, and a driving gear 56 is provided on the output shaft 54. A driven gear 46 is provided on the moving knife shaft 451, and the driving gear 56 and the driven gear 46 are connected by a transmission belt 47.

[0052] It should be noted that the motor assembly 5 also includes a motor bracket 52 for mounting the motor 51 , a transmission gear box 53 for connecting to the output shaft 54 ​​, a transmission housing 55 for mounting the transmission gear box 53 , and an end cover 57 for preventing the driving gear 56 from detaching from the output shaft 54 ​​.

[0053] Among them, the cutting assembly 4 also includes a left side plate 42, a right side plate 48, a connecting bracket 43, and a sliding lock key 44. The left side plate 42 and the right side plate 48 are located on the outside of the connecting bracket 43 and on the inside of the fender 38. The left side plate 42, the right side plate 48 and the connecting bracket 43 together constitute the skeleton part of the cutting assembly 4, and the material is engineering plastic, such as PA6, ABS, etc. And, the connecting bracket 43 is symmetrically arranged on the left side of the left plate 42 and the right side of the plate 48, and is made of metal sheet metal, such as Q235, etc. The rotating shaft 431 extends outward on the connecting bracket 43, and the sliding key groove is arranged on the moving knife shaft 451, and there are three sliding key grooves for the sliding lock key 44 to be installed. The sliding lock key 44 on the left side cooperates with the sliding key groove on the left side of the moving knife shaft 451 to connect the one-way gear 41 on the left side with the moving knife shaft 451, and the two sliding lock keys 44 on the right side cooperate with the two sliding key grooves on the right side of the moving knife shaft 451 to connect the one-way gear 41 and the driven gear 46 on the right side with the moving knife shaft 451, respectively, so as to transmit the torque from the walking wheel 1 and the motor 51 to the rolling blade 45. It should be noted that the transmission belt 47 is made of rubber, preferably a circular arc synchronous belt.

[0054] With such a design, in the manual mode, when the travel wheel 1 rolls forward, the travel wheel 1 meshes with the one-way gear 41 through the internal gear 11 to drive the moving blade shaft 451, and the one-way gear 41 transmits the rotation torque to the moving blade shaft 451 through the sliding lock key 44, thereby realizing the rotation of the roller blade 45. The one-way gear 41 can also prevent the reaction force of the moving blade shaft 451 from driving the travel wheel 1 to rotate, so as to realize the in-situ cutting of the roller-type lawn mower, and also prevent the rotation torque from being transmitted to the motor 51 through the sliding lock key 44 at the driven gear 46 during the rotation of the moving blade shaft 451; finally, the one-way gear 41, the scale mark 491 and the observation window 35 are located on the arc surface of the concentric circle with the rotating shaft 431 as the center, and the structural distribution is more reasonable.

[0055] In the electric mode, the power of the motor 51 is transmitted to the driven gear 46 through the driving gear 56 and the transmission belt 47. The driven gear 46 transmits the rotational torque to the movable knife shaft 451 through the sliding lock key 44, thereby realizing the rotation of the rolling blade 45. At the same time, it also avoids the rotational torque being transmitted to the walking wheel 1 through the sliding lock key 44 at the one-way gear 41 during the rotation of the movable knife shaft 451. In the electric mode, the noise is smaller and the maximum load torque is higher.

[0056] The rolling blade 45 includes a movable blade 452 and a fixed blade 453 , and the movable blade 452 and the fixed blade 453 form a cutting edge for cutting.

[0057] It should be noted that the central axis of the rotating shaft 431 is coaxially arranged with the central axis of the traveling wheel 1, which is indicated by axis a. The central axis of the movable blade shaft 451 is coaxially arranged with the central axis of the movable blade 452, which is indicated by axis b. The center of the circle of the swing of the connecting end of the adjusting bolt 492 with the bracket body 49 during the adjustment process is indicated by axis c.

[0058] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A reel-type lawn mower, comprising a running wheel (1), a housing (3), a movable bracket, a cutting assembly (4), a motor assembly (5), and a height adjustment assembly, wherein the running wheel (1) is rotatably connected to the movable bracket via a rotating shaft (431), and characterized in that: The movable bracket comprises a bracket body (49) and a connecting bracket (43) fixedly connected to the bracket body (49); the cutting assembly (4) comprises a movable blade shaft (451) and a rolling blade (45) arranged on the movable blade shaft (451); the movable blade shaft (451) is rotatably arranged on the connecting bracket (43); the cutting assembly (4) is offset relative to the central axis of the rotating shaft (431) through the connecting bracket (43); the height adjustment assembly comprises an adjustment bolt (492) protruding from the bracket body (49) and an adjustment knob (31) located outside the housing (3); a through hole is provided on the housing (3) The adjusting bolt (492) passes through the through hole and is threadedly connected to the adjusting knob (31). The bracket body (49) is provided with a scale mark (491) for displaying the height of the rolling blade (45) relative to the ground. When the adjusting knob (31) is rotated, the adjusting bolt (492) is driven to move relative to the housing (3), so that the movable bracket swings around the rotating shaft (431) at a certain angle, and then the cutting assembly (4) swings accordingly, so as to adjust the height of the rolling blade (45) relative to the ground. The housing (3) is provided with an observation window (35) on one side of the adjusting knob (31) and displays the scale mark (491).

2. A reel-type lawn mower according to claim 1, characterized in that: The adjusting knob (31) and the observation window (35) are arranged on one side of the top surface of the casing (3); the angle between the adjusting knob (31) and the horizontal plane is α, and α is ≤15°.

3. A reel-type lawn mower according to claim 1, characterized in that: The adjusting knob (31) is arranged in the middle area of ​​the housing (3), so that the adjusting knob (31) is away from the running wheel (1).

4. A reel-type lawn mower according to claim 1, characterized in that: A fender (38) is provided between the cutting assembly (4) and the walking wheel (1); a limiting hole is provided on the fender (38) and is offset relative to the central axis of the rotating shaft (431); the movable blade shaft (451) extends into the limiting hole and cooperates with the inner wall of the limiting hole to limit the rotation angle of the cutting assembly (4) relative to the rotating shaft (431).

5. A reel-type lawn mower according to claim 4, characterized in that: The housing (3) is fixedly connected to the fender (38), and the fender (38) is rotatably connected to the rotating shaft (431).

6. A reel-type lawn mower according to claim 1, characterized in that: The rear end of the housing (3) is rotatably connected to a grass pressing roller (36).

7. A reel-type lawn mower according to claim 1, characterized in that: The walking wheel (1) is provided with an internal tooth (11), the moving knife shaft (451) is provided with a one-way gear (41) meshing with the internal tooth (11), and the one-way gear (41), the scale mark (491) and the observation window (35) are located on an arc surface of a concentric circle with the rotating shaft (431) as the center.

8. A reel-type lawn mower according to claim 1, characterized in that: A bottom shell (432) opposite to the bracket body (49) is also provided in the housing (3); a receiving chamber for receiving a motor assembly (5) is formed between the bracket body (49) and the bottom shell (432); the motor assembly (5) comprises a motor (51) provided with an output shaft (54); a driving gear (56) is provided on the output shaft (54); a driven gear (46) is provided on the movable knife shaft (451); and the driving gear (56) and the driven gear (46) are connected via a transmission belt (47).

9. A reel-type lawn mower according to claim 1, characterized in that: The housing (3) is also provided with a battery pack (6) and a battery installation chamber (33) for accommodating the battery pack (6); the battery installation chamber (33), the adjustment knob (31) and the observation window (35) are arranged on the same side of the housing (3).

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