Greening mowing device for municipal road environmental protection

Abstract

The invention discloses a greening mowing device for municipal road environmental protection, relates to the technical field of garden machinery, and aims to solve the technical problem that an existing manual mowing mode is difficult to adapt to municipal road grass check maintenance requirements. The device comprises a frame, walking wheels and a handrail, the walking wheels and the handrail are arranged on the frame, and a protective cover is arranged on the frame; a range control mechanism, a grid movement mechanism and a mowing mechanism are sequentially arranged in the protective cover. The range control mechanism can adjust and lock the driving amplitude of the grid movement mechanism so as to adapt to straw grids of different sizes; the grid movement mechanism drives the mowing mechanism to move along the closed square track; and the mowing mechanism adopts a grass mowing rope with active rope supply control for cutting. The device has the advantages of regular trimming track, high adaptability, high operation efficiency and safe and reliable operation, and can effectively meet the standardized and mechanical maintenance requirements of straw checks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garden machinery, more particularly to a green grass cutting device for municipal road environmental protection. BACKGROUND

[0002] In areas with serious wind and sand, grass squares are often used for municipal road greening. Grass squares are protective structures made of plant straw or artificial grass in a certain pattern, which have multiple environmental protection effects: they can reduce near-surface wind speed, fix surface soil to achieve sand fixation and wind prevention, intercept precipitation, regulate local temperature and humidity, and improve the surrounding microenvironment, and also form a green vegetation belt to beautify the road environment and enrich biodiversity.

[0003] Grass squares need to be regularly trimmed after planting. If they are not trimmed for a long time, the turf density will decrease, weeds will grow, the sand fixation effect will be affected, and the coordination of the green landscape will be destroyed. However, current grass square trimming is still mainly manual, and workers use trimmers to trim each square, which has obvious defects.

[0004] On the one hand, the trimming efficiency is low. Grass squares are continuously laid along the road and cover a large area. Manual trimming requires frequent position adjustment and is limited by physical strength, weather, and other factors, making it difficult to quickly complete large-scale trimming operations and easily miss the best trimming period, affecting the function and landscape of the grass square. On the other hand, the trimming is not aesthetically pleasing. The trimming height and trajectory depend on the experience and visual judgment of the personnel, and there are large differences in operation by different personnel, which can result in uneven trimming height, irregular edges, and other problems. Moreover, grass squares have high requirements for trimming neatness, and manual trimming cannot accurately control the trimming neatness, which cannot meet the aesthetic needs of modern urban greening.

[0005] In summary, the current manual trimming method cannot meet the maintenance needs of municipal road grass squares, and the development of an efficient and accurate green grass cutting device has become a problem to be solved in the field of municipal greening. Therefore, we propose a green grass cutting device for municipal road environmental protection. SUMMARY

[0006] The present application relates to the technical field of garden machinery, more particularly to a green grass cutting device for municipal road environmental protection.

[0007] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of municipal road environmental protection greenery grass cutting device, including frame, the frame is equipped with walking wheel, the frame is equipped with handrail, the frame is equipped with protective cover, the protective cover back is equipped with grass collecting box, the protective cover is equipped with interlayer, the interlayer is hoisted with range control mechanism, the range control mechanism bottom end is hoisted with square grid movement mechanism, the square grid movement mechanism mobile end is hoisted with grass cutting mechanism, the protective cover is located in the position of the interlayer bottom end and is equipped with grass beating cavity, the grass beating cavity top is equipped with rectangle hole, the grass cutting mechanism is movably arranged on the rectangle hole; The square grid movement mechanism is configured to drive the grass cutting mechanism to move in a closed square trajectory in a plane perpendicular to the rotational axis of the grass cutting mechanism. The range control mechanism is configured to adjust and lock the driving amplitude of the square grid movement mechanism to change the coverage range of the square trajectory made by the grass cutting mechanism, so as to adapt to grass squares of different sizes.

[0008] Preferably, the range control mechanism includes a fixed component, a first movable piece, a second movable piece, and a driving unit. The fixed component is fixedly hoisted in the interlayer. The first movable piece and the second movable piece are movably arranged on the fixed component. One end of the driving unit is fixedly arranged on the protective cover, and the other end of the driving unit is movably inserted into the protective cover and engaged with the first movable piece.

[0009] Preferably, the fixed component includes a top plate, a bottom plate, a rotating hole, a notch, a rotating column, a limiting block, and a square hole. The top plate is fixedly hoisted on the inner top wall of the protective cover. The bottom plate is fixedly connected to the bottom end of the top plate. The rotating hole is arranged on the top plate. The notch is arranged on the outer lateral wall of the top plate and communicates with the rotating hole. The rotating column is annularly and equidistantly arranged on the bottom plate. The limiting block is annularly and equidistantly fixedly arranged on the bottom plate. The square hole is arranged on the bottom plate. The first movable piece is rotatably arranged on the rotating hole. The second movable piece is sleeved on the rotating column and the limiting block.

[0010] Preferably, the first movable piece includes a rotating ring, an inner tooth groove, and an outer tooth groove. The rotating ring is rotatably arranged on the rotating hole. The inner tooth groove is annularly and equidistantly arranged on the inner wall of the rotating ring. The outer tooth groove is arranged on the outer wall of the rotating ring at the position of the notch. The output end of the driving unit is engaged with the outer tooth groove.

[0011] Preferably, the second movable part comprises a ladder block, a gear, a sliding hole, and a straight toothed groove, the sliding hole is arranged on the ladder block, the ladder block is movably sleeved on the limiting block through the sliding hole, the gear is fixedly sleeved on the rotating column, and the straight toothed groove is arranged on the outer wall of the ladder block, one end of the gear is engaged with the inner toothed groove, and the other end of the gear is engaged with the straight toothed groove.

[0012] Preferably, the square grid movement mechanism comprises a hanging column, a hanging plate, a motor, a driving shaft, a sliding rod, an outer ring, a sliding block, a double-shaft assembly, a pulley and a spring, a plurality of the hanging columns are fixedly inserted into the range control mechanism, the hanging plate is fixedly connected to the bottom end of the hanging column, the motor is arranged on the hanging plate, the driving shaft is rotatably arranged on the hanging plate, the output end of the motor is engaged with the bottom end of the driving shaft, the sliding rod is fixedly connected to the top end of the driving shaft, the outer ring is fixedly sleeved on the sliding rod, the sliding block is slidably sleeved on the sliding rod, the spring is sleeved on the sliding rod between the driving shaft and the sliding block, the double-shaft assembly is fixedly connected to the bottom end of the sliding block, the pulley is rotatably connected to the top end of the sliding block, and the end of the pulley away from the sliding block is movably inserted into the range control mechanism.

[0013] Preferably, the double-shaft assembly comprises a first guide rail, a first moving plate, a first guide groove, a second guide rail, a frame, a second moving plate and a second guide groove, the first guide rail is fixedly arranged at the bottom end of the hanging plate, the first guide groove is arranged at the top end of the first moving plate, the first moving plate is slidably arranged on the first guide rail through the first guide groove, the second guide rail is fixedly arranged at the bottom end of the first moving plate, the second guide groove is arranged at the top end of the second moving plate, the second moving plate is slidably arranged on the second guide rail through the second guide groove, one end of the frame is fixedly connected to the bottom end of the sliding block, and the other end of the frame is fixedly connected to the outer wall of the second moving plate.

[0014] Preferably, the grass cutting mechanism comprises a rotary power head, a grass hitting head, a wire bundling assembly, a wire extruding assembly and a grass hitting rope, the rotary power head is fixedly hung at the moving end of the square grid movement mechanism, the grass hitting head is fixedly sleeved on the output end of the rotary power head, the wire bundling assembly is arranged in the grass hitting head, the wire extruding assembly is annularly and equidistantly arranged in the grass hitting head, one end of the grass hitting rope is connected to the wire bundling assembly, and the other end of the grass hitting rope is movably arranged on the outer wall of the grass hitting head.

[0015] Preferably, the wire winding assembly comprises a motor, a main gear, a wire winding shaft, a wire slot and a spiral slot, the motor is fixedly embedded at the top end of the grass cutting head, the main gear is fixedly connected to the output end of the motor, the wire winding shaft is fixedly connected to the bottom end of the main gear, the wire slot is vertically and linearly arranged at the outer wall of the wire winding shaft at equal intervals, the spiral slot is arranged on the wire slot, one end of the grass cutting rope is fixedly connected to the wire slot and movably wound on the spiral slot, and the other end of the grass cutting rope is movably arranged on the through hole in the outer wall of the grass cutting head.

[0016] Preferably, the wire winding assembly comprises a driven gear, an idle gear and a wire extruding wheel, the driven gear is arranged in the grass cutting head in a ring shape at equal intervals and is meshingly connected to the main gear, the idle gear is arranged in the grass cutting head in a ring shape at equal intervals and is meshingly connected to the driven gear, the wire extruding wheel is fixedly connected to the driven gear and the idle gear, and the middle part of the grass cutting rope is frictionally connected between the two wire extruding wheels.

[0017] Compared with the prior art, the present application has the following advantages: 1. The range control mechanism is provided, the accurate and rapid adjustment of the grass grid pruning size is realized, a rigid and lockable adjustment mechanism is provided, the travel reference of the grid movement mechanism can be accurately set and locked, the square pruning track formed by the grass cutting mechanism can be adapted to different specifications of grass grids, the problem that the existing equipment cannot quickly adapt to multiple size pruning requirements is solved, and the universality and operation preparation efficiency of the equipment are significantly improved.

[0018] 2. The grid movement mechanism is provided, the accurate square track movement of the grass cutting mechanism is realized, a single rotary power source is converted into accurate and closed square plane movement through a clever mechanical structure, and the specific geometric path required for generating grass grid pruning is generated, the regularity of the pruning track is fundamentally ensured, and the defect that a regular square cutting path cannot be realized by manual operation or an ordinary grass cutting machine is overcome.

[0019] 3. The grass cutting mechanism is provided, a high-efficiency, safe and sustainable cutting scheme is provided, the rotary cutting and active rope length management are combined, the operation safety is improved by using a flexible grass cutting rope, the stability and sustainability of the cutting blade length are ensured through the active and synchronous rope supply and wire extruding mechanism, the problem that the cutting effect of a traditional grass cutting device decays with the change of the rope length is solved, and the problem that a metal blade is easily damaged in a complex environment is solved, and the grass cutting device is particularly suitable for normal and high-quality maintenance operation of municipal road green belts. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2The cross-sectional internal structure of the protective cover of the present application is shown in the figure. Figure 3 The cross-sectional internal structure of the protective cover of the present application is shown in the figure. Figure 4 The split structure of the range control mechanism of the present application is shown in the figure. Figure 5 The top view structure of the range control mechanism of the present application is shown in the figure. Figure 6 The structure of the checkboard movement mechanism of the present application is shown in the figure. Figure 7 The partial structure of the checkboard movement mechanism of the present application is shown in the figure. Figure 8 The split structure of the double-shaft assembly of the present application is shown in the figure. Figure 9 The structure of the double-shaft assembly and the grass cutting mechanism of the present application is shown in the figure. Figure 10 The cross-sectional internal structure of the grass cutting head of the present application is shown in the figure. Figure 11 The structure of the wire bundling assembly and the wire extruding assembly of the present application is shown in the figure. Figure 12 The split structure of the wire bundling assembly, the wire extruding assembly and the grass cutting rope of the present application is shown in the figure. Figure 13 The movement direction of the wire bundling assembly, the wire extruding assembly and the grass cutting rope of the present application is shown in the figure. Figure 14 The trajectory path of the checkboard movement mechanism and the range size of the range control mechanism of the present application is shown in the figure.

[0021] Explanation of the figure: 1, frame; 2, walking wheel; 3, handrail; 4, protective cover; 5, grass collecting box; 6, interlayer; 7, range control mechanism; 8, checkboard movement mechanism; 9, grass cutting mechanism; 10, grass cutting cavity; 11, square hole; 701, fixed assembly; 702, first movable piece; 703, second movable piece; 704, driving unit; 7011, top plate; 7012, bottom plate; 7013, rotating hole; 7014, notch; 7015, rotating column; 7016, limiting block; 7017, square hole; 7021, rotating ring; 7022, inner tooth groove; 7023, outer tooth groove; 7031, ladder block; 7032, gear; 7033, sliding hole; 7034, straight tooth groove; 801, hanging column; 802, hanging plate; 803, motor; 804, driving shaft; 805, sliding rod; 806, outer ring; 807, sliding block; 808, double-shaft assembly; 809, pulley; 810, spring; 8081, first guide rail; 8082, first moving plate; 8083, first guide groove; 8084, second guide rail; 8085, frame; 8086, second moving plate; 8087, second guide groove; 901, rotating power head; 902, grass cutting head; 903, line binding assembly; 904, line extruding assembly; 905, grass cutting rope; 9031, motor; 9032, main gear; 9033, line binding shaft; 9034, line slot; 9035, helical slot; 9041, driven gear; 9042, idler gear; 9043, line extruding wheel. DETAILED DESCRIPTION

[0022] As Figures 1 to 14 shown, the present application relates to a kind of municipal road environmental protection with greenery grass cutting device, including frame 1, frame 1 is equipped with walking wheel 2, frame 1 is equipped with handrail 3, frame 1 is equipped with protective cover 4, protective cover 4 back is equipped with grass collecting box 5, protective cover 4 is equipped with interlayer 6, interlayer 6 is hoisted with range control mechanism 7, range control mechanism 7 bottom end hoisting is equipped with square grid movement mechanism 8, square grid movement mechanism 8 mobile end hoisting is equipped with grass cutting mechanism 9, protective cover 4 is located in the position of interlayer 6 bottom end and is equipped with grass cutting cavity 10, grass cutting cavity 10 top is equipped with square hole 11, grass cutting mechanism 9 is moved and is equipped in square hole 11 on; Square grid movement mechanism 8 is configured to drive grass cutting mechanism 9 to move in a closed square trajectory in a plane perpendicular to the rotational axis of grass cutting mechanism 9; Range control mechanism 7 is configured to adjust and lock the driving amplitude of square grid movement mechanism 8, so as to change the coverage range of the square trajectory made by grass cutting mechanism 9, and make it adapt to grass squares of different sizes.

[0023] In the present application, the operator pushes frame 1 through handrail 3, and moves the device to the grass square area to be trimmed by walking wheel 2. Grass cutting mechanism 9 performs grass cutting operation in grass cutting cavity 10, which extends out through square hole 11 and contacts the grass surface. Square grid movement mechanism 8 drives grass cutting mechanism 9 to move along a closed square trajectory in a plane perpendicular to its rotational axis, realizing regular trimming of grass square. Range control mechanism 7 is used to adjust and lock the driving amplitude of square grid movement mechanism 8, so as to control the coverage range of the square trajectory made by grass cutting mechanism 9, and make it adapt to the trimming needs of grass squares of different sizes. The present application realizes automatic and regular trimming of grass square, avoiding inconsistency and inefficiency of manual operation. Square grid movement mechanism 8 ensures that the trimming trajectory is a regular square, and range control mechanism 7 provides flexible size adjustment capability, so that the device can adapt to grass squares of various specifications, improving the standardization degree and operation efficiency of municipal road greening maintenance.

[0024] In the embodiment of the present application, the range control mechanism 7 comprises a fixed assembly 701, a first movable part 702, a second movable part 703, and a driving unit 704, the fixed assembly 701 is fixedly hung in the interlayer 6, the first movable part 702 and the second movable part 703 are movably arranged on the fixed assembly 701, one end of the driving unit 704 is fixedly arranged on the protective cover 4, and the other end of the driving unit 704 is movably inserted into the protective cover 4 and is in meshing connection with the first movable part 702.

[0025] In the present application, the fixed assembly 701 provides stable support, and the driving unit 704 accurately controls the linkage position of the first movable part 702 and the second movable part 703, so that stepless or stepwise adjustment of the mowing track coverage range is realized. This structure makes the range control mechanism 7 have the characteristics of accurate adjustment and reliable locking, can effectively adapt to the mowing needs of different sizes of grass squares, and improves the universality and operation convenience of the device.

[0026] In the embodiment of the present application, the fixed assembly 701 comprises a top plate 7011, a bottom plate 7012, a rotating hole 7013, a notch 7014, a rotating column 7015, a limiting block 7016, and a square hole 7017, the top plate 7011 is fixedly hung on the top wall in the protective cover 4, the bottom plate 7012 is fixedly connected to the bottom end of the top plate 7011, the rotating hole 7013 is arranged on the top plate 7011, the notch 7014 is arranged on the outer wall of the top plate 7011 and is in communication with the rotating hole 7013, the rotating column 7015 is arranged on the bottom plate 7012 in a ring shape and at equal intervals, the limiting block 7016 is fixedly arranged on the bottom plate 7012 in a ring shape and at equal intervals, the square hole 7017 is arranged on the bottom plate 7012, the first movable part 702 is rotatably arranged on the rotating hole 7013, and the second movable part 703 is sleeved on the rotating column 7015 and the limiting block 7016.

[0027] In the present application, the top plate 7011 and the bottom plate 7012 jointly constitute a stable mounting frame. The first movable part 702 is mounted on the top plate 7011 through the rotating hole 7013 and can rotate around its axis. The notch 7014 provides meshing space for the output end of the driving unit 704, so that it can be connected with the first movable part 702. The second movable part 703 is limited to move on the bottom plate 7012 by being sleeved on the rotating column 7015 and the limiting block 7016.

[0028] The fixed assembly 701 forms a firm support structure through the top plate 7011 and the bottom plate 7012, ensuring the stability of the entire range control mechanism 7. The cooperation of the rotating hole 7013 and the notch 7014 realizes smooth rotation of the first movable part 702 and effective input of external power. The rotating column 7015 provides a rotating fulcrum for the second movable part 703, and the limiting block 7016 accurately limits its movement trajectory to prevent deviation.

[0029] As another embodiment of the present application, the first movable part 702 comprises a rotating ring 7021, an inner tooth groove 7022 and an outer tooth groove 7023, the rotating ring 7021 is rotatably arranged on the rotating hole 7013, the inner tooth groove 7022 is annularly and equidistantly arranged on the inner wall of the rotating ring 7021, the outer tooth groove 7023 is arranged on the outer wall of the rotating ring 7021 at the position of the notch 7014, and the output end of the driving unit 704 is engagedly connected to the outer tooth groove 7023.

[0030] After the driving unit 704 is started, the output end thereof is engagedly connected to the outer tooth groove 7023 on the outer wall of the rotating ring 7021, so as to drive the rotating ring 7021 to rotate in the rotating hole 7013 of the fixed assembly 701. The inner tooth groove 7022 annularly and equidistantly arranged on the inner wall of the rotating ring 7021 rotates synchronously. The inner tooth groove 7022 is engaged with the corresponding gear structure on the second movable part 703, so as to convert the rotating motion into the radial linear motion of the second movable part 703.

[0031] As another embodiment of the present application, the second movable part 703 comprises a ladder block 7031, a gear 7032, a sliding hole 7033 and a straight tooth groove 7034, the sliding hole 7033 is arranged on the ladder block 7031, the ladder block 7031 is movably sleeved on the limiting block 7016 through the sliding hole 7033, the gear 7032 is fixedly sleeved on the rotating column 7015, the straight tooth groove 7034 is arranged on the outer wall of the ladder block 7031, one end of the gear 7032 is engagedly connected to the inner tooth groove 7022, and the other end of the gear 7032 is engagedly connected to the straight tooth groove 7034.

[0032] When the rotating ring 7021 of the first movable part 702 rotates, the inner tooth groove 7022 drives the gear 7032 engaged therewith to rotate. Since the gear 7032 is fixedly sleeved on the rotating column 7015, the rotating motion thereof is transmitted. The other end of the gear 7032 is engaged with the straight tooth groove 7034 on the outer wall of the ladder block 7031, so as to convert the rotating motion into the linear motion of the ladder block 7031. The ladder block 7031 is movably sleeved on the limiting block 7016 through the sliding hole 7033 thereon, the limiting block 7016 guides and limits the movement track of the ladder block 7031, so as to ensure that the ladder block 7031 stably moves along the preset path.

[0033] In the embodiment of the present application, the square motion mechanism 8 comprises a hanging column 801, a hanging plate 802, a motor 803, a driving shaft 804, a sliding rod 805, an outer ring 806, a sliding block 807, a double-shaft assembly 808, a pulley 809 and a spring 810, a plurality of the hanging columns 801 are fixedly inserted on the range control mechanism 7, the hanging plate 802 is fixedly connected to the bottom end of the hanging column 801, the motor 803 is arranged on the hanging plate 802, the driving shaft 804 is rotatably arranged on the hanging plate 802, the output end of the motor 803 is meshingly connected to the bottom end of the driving shaft 804, the sliding rod 805 is fixedly connected to the top end of the driving shaft 804, the outer ring 806 is fixedly sleeved on the sliding rod 805, the sliding block 807 is slidably sleeved on the sliding rod 805, the spring 810 is sleeved on the sliding rod 805 between the driving shaft 804 and the sliding block 807, the double-shaft assembly 808 is fixedly connected to the bottom end of the sliding block 807, and the pulley 809 is rotatably connected to the top end of the sliding block 807, and the other end of the pulley 809 away from the sliding block 807 is movably inserted on the range control mechanism 7.

[0034] In the embodiment of the present application, when the motor 803 is started, the output end of the motor 803 drives the driving shaft 804 to rotate through meshing transmission. The driving shaft 804 drives the sliding rod 805 fixedly connected to the top end of the driving shaft 804 to synchronously rotate. Since the outer ring 806 is fixedly sleeved on the sliding rod 805, the outer ring 806 will move in a circular motion. The sliding block 807 is slidably sleeved on the sliding rod 805 and maintains a certain axial position under the support of the spring 810. The pulley 809 is rotatably connected to the top end of the sliding block 807, and the other end of the pulley 809 is movably inserted on the outer side surface of the ladder block 7031 of the second movable piece 703 on the pre-set track or constraint interface of the range control mechanism 7. When the sliding rod 805 rotates, the circular motion of the outer ring 806 is converted into the motion of the double-shaft assembly 808 along a specific square track in the horizontal plane through the interaction of the sliding block 807, the pulley 809 and the range control mechanism 7. Finally, the mowing mechanism 9 fixedly connected to the moving end of the double-shaft assembly 808 is driven to move in a closed square track.

[0035] In the embodiment of the present application, the double-shaft assembly 808 comprises a first guide rail 8081, a first moving plate 8082, a first guide groove 8083, a second guide rail 8084, a frame 8085, a second moving plate 8086 and a second guide groove 8087, the first guide rail 8081 is fixedly arranged at the bottom end of the hanging plate 802, the first guide groove 8083 is arranged at the top end of the first moving plate 8082, the first moving plate 8082 is slidably arranged on the first guide rail 8081 through the first guide groove 8083, the second guide rail 8084 is fixedly arranged at the bottom end of the first moving plate 8082, the second guide groove 8087 is arranged at the top end of the second moving plate 8086, the second moving plate 8086 is slidably arranged on the second guide rail 8084 through the second guide groove 8087, one end of the frame 8085 is fixedly connected to the bottom end of the sliding block 807, and the other end of the frame 8085 is fixedly connected to the outer wall of the second moving plate 8086.

[0036] The frame 8085 in the present application transmits the compound motion of the slider 807 to the double-shaft assembly 808. The first moving plate 8082 is matched with the first guide rail 8081 fixed to the bottom end of the hanging plate 802 through the first guide slot 8083 on the top of the first moving plate 8082, so as to realize the sliding freedom in the first direction. The second moving plate 8086 is matched with the second guide rail 8084 fixed to the bottom end of the first moving plate 8082 through the second guide slot 8087 on the top of the second moving plate 8086, so as to realize the sliding freedom in the second direction perpendicular to the first direction. The frame 8085 is connected between the slider 807 and the second moving plate 8086, so as to synchronously transmit the specific driving motion generated by the core components of the upper square grid motion mechanism 8 and constrained by the range control mechanism 7 to the second moving plate 8086, thereby driving the second moving plate 8086 and the mowing mechanism 9 suspended below the second moving plate 8086 to perform the synthesized and closed square track motion in the two-dimensional plane constructed by the first moving plate 8082.

[0037] As another embodiment of the present application, the mowing mechanism 9 comprises a rotary power head 901, a mowing head 902, a line binding assembly 903, a line extruding assembly 904 and a mowing line 905. The rotary power head 901 is fixedly hung at the moving end of the square grid motion mechanism 8. The mowing head 902 is fixedly sleeved on the output end of the rotary power head 901. The line binding assembly 903 is arranged in the mowing head 902. The line extruding assembly 904 is arranged in the mowing head 902 in a ring shape at equal intervals. One end of the mowing line 905 is connected to the line binding assembly 903, and the other end of the mowing line 905 is movably arranged outside the outer wall of the mowing head 902.

[0038] The rotary power head 901 in the present application provides the rotary motion required for cutting. When the mowing head 902 rotates at a high speed, the extended mowing line 905 is straightened under the action of centrifugal force, forming an effective cutting area, and the weeds or grass stems are beaten and cut. In the working process, the extrusion of the line extruding assembly 904 and the rotary centrifugal force jointly control the extension length and stability of the mowing line 905, and the line binding assembly 903 can release a new line segment in time according to the wear condition.

[0039] It is worth noting that, as Figure 12As shown, in the present application, the portion of the grass cutting rope 905 inside the grass cutting head 902, wound around the bundling assembly 903 and passing through the extruding assembly 904, has a circular cross-section, which facilitates smooth winding, storage and passing between the extruding wheels 9043 in limited space, reducing the resistance to movement and wear. The end of the grass cutting rope 905 extending out of the outer wall of the grass cutting head 902 for cutting operation has a rhombus-shaped cross-section. The edges of the rhombus-shaped cross-section form sharp cutting edges, which can cut off grass stems more easily and quickly at high speed, significantly improving cutting efficiency and neatness, especially suitable for grass squares that need to be trimmed regularly. The rhombus-shaped cross-section helps to reduce air resistance when the grass cutting rope 905 rotates at high speed, making the rope run more stably and less wobble, thereby facilitating the accuracy of the cutting track and ensuring the flatness of the grass square edge. The circular cross-section portion facilitates winding and transmission, reducing internal wear; while the rhombus-shaped cross-section portion exposed outside has relatively less wear due to its higher cutting efficiency, thereby prolonging the service life of the grass cutting rope 905 as a whole.

[0040] As another embodiment of the present application, the bundling assembly 903 includes a motor 9031, a main gear 9032, a bundling shaft 9033, a wire slot 9034 and a spiral slot 9035. The motor 9031 is fixedly embedded at the top end of the grass cutting head 902, the main gear 9032 is fixedly connected to the output end of the motor 9031, the bundling shaft 9033 is fixedly connected to the bottom end of the main gear 9032, the wire slot 9034 is linearly and equally spacedly vertically provided on the outer wall of the bundling shaft 9033, the spiral slot 9035 is provided on the wire slot 9034, one end of the grass cutting rope 905 is fixedly connected to the wire slot 9034 and movably wound on the spiral slot 9035, and the other end of the grass cutting rope 905 is movably provided through the through hole in the outer wall of the grass cutting head 902.

[0041] In the present application, when the motor 9031 of the bundling assembly 903 is started, it drives the main gear 9032 to rotate, thereby driving the bundling shaft 9033 to rotate. One end of the grass cutting rope 905 is fixed to the wire slot 9034 and wound along the spiral slot 9035. By controlling the direction and speed of the motor 9031, the grass cutting rope 905 can be released or recovered in an orderly manner, thereby accurately adjusting its effective working length.

[0042] As another embodiment of the present application, the extruding assembly 904 includes a driven gear 9041, an idler gear 9042 and an extruding wheel 9043. The driven gear 9041 is annularly and equally spacedly provided inside the grass cutting head 902 and meshingly connected to the main gear 9032, the idler gear 9042 is annularly and equally spacedly provided inside the grass cutting head 902 and meshingly connected to the driven gear 9041, the extruding wheel 9043 is fixedly connected to the driven gear 9041 and the idler gear 9042, and the middle part of the grass cutting rope 905 frictionally contacts between the two extruding wheels 9043.

[0043] The main gear 9032, while driving the winding spool 9033, also engages a plurality of ring-arranged driven gears 9041. Each driven gear 9041, in turn, drives another wire-pressing wheel 9043 paired therewith to rotate reversely through the idler gear 9042. The lawnmower string 905, after being drawn out of the winding spool 9033, has its middle portion clamped between the paired wire-pressing wheels 9043 rotating towards each other. The rotation of the wire-pressing wheels 9043 generates an outward pressing force and a smooth feeding force to the lawnmower string 905.

[0044] wherein, as shown in Figure 13 when the lawnmower string 905 needs to be replenished in length or the cutting range of the cutting mechanism 9 needs to be enlarged due to wear and tear, the motor 9031 drives the main gear 9032 and the winding spool 9033 to rotate in the clockwise direction. This rotation direction is the feeding direction, which loosens and releases the lawnmower string 905 wound on the spiral groove 9035 of the winding spool 9033. At the same time, the clockwise rotating main gear 9032 engages and drives the surrounding driven gears 9041 to rotate counterclockwise. Each counterclockwise rotating driven gear 9041, through the transmission of the idler gear 9042, drives the other wire-pressing wheel 9043 paired therewith to rotate clockwise. Thus, each pair of wire-pressing wheels 9043 forms a rotating direction opposite to each other, one counterclockwise and the other clockwise, generating an outward stable feeding force to the lawnmower string 905 passing between them. This feeding force is synchronized with the loosening action of the winding spool 9033, together ensuring that the lawnmower string 905 is smoothly and controllably fed out of the through hole of the outer wall of the cutting head 902, maintaining its effective working length.

[0045] In addition, when the lawnmower string 905 needs to be recovered, the motor 9031 drives the main gear 9032 and the winding spool 9033 to rotate in the counterclockwise direction. This rotation direction is opposite to the feeding direction, thereby rewinding the string onto the wire groove 9034 and the spiral groove 9035. At this time, the counterclockwise rotation of the main gear 9032 causes the driven gears 9041 to rotate clockwise, and through the idler gear 9042, the paired wire-pressing wheels 9043 to rotate counterclockwise. The wire-pressing wheels 9043 continue to rotate in opposite directions, and the friction force generated thereby cooperates with the rewinding action to prevent the string from being disordered, ensuring that the recovery process proceeds in an orderly manner.

[0046] Working principle: the embodiment provides a municipal road environment-friendly greening mowing device. When in use, first, an operator pushes the device through the handrail 3, and the walking wheel 2 drives the vehicle frame 1 to move above the grass square; The output gear of the driving unit 704 engages with the outer tooth groove 7023 to drive the rotating ring 7021 to rotate. The inner tooth groove 7022 on the inner wall of the rotating ring 7021 engages with the gear 7032 to drive the gear 7032 to rotate. The gear 7032 engages with the straight tooth groove 7034 on the outer side of the ladder block 7031 to drive the ladder block 7031 to slide radially along the limiting block 7016, so as to set the size of the cutting square; The output gear of the motor 803 engages with the bottom end of the driving shaft 804 to drive the driving shaft 804 to rotate. The driving shaft 804 drives the sliding rod 805 at the top end and the outer ring 806 fixed thereon to rotate together. The pulley 809 at the top end of the sliding block 807 is constrained by the inclined surface profile of the ladder block 7031, and rolls along the surface under the action of the spring 810, so as to convert the rotary motion of the sliding rod 805 into a specific reciprocating motion of the sliding block 807 on the sliding rod 805. The sliding block 807 drives the second moving plate 8086 to move through the frame 8085 at the bottom. The second moving plate 8086 slides along the second guide rail 8084 fixed to the bottom of the first moving plate 8082 through the second guide groove 8087 at the top, while the first moving plate 8082 slides along the first guide rail 8081 fixed to the bottom of the hanging plate 802 through the first guide groove 8083 at the top, and finally composes a square trajectory motion.

[0047] The rotary power head 901 drives the grass cutting head 902 to rotate at high speed, so that the grass cutting rope 905 cuts the grass stems. The grass cutting head 902 is fixed to the lower end of the second moving plate 8086 as a whole, and completes the square motion together with the second moving plate 8086.

[0048] The motor 9031 drives the main gear 9032 to rotate, the main gear 9032 drives the winding shaft 9033 to rotate, and the grass cutting rope 905 is released or recovered through the wire groove 9034 and the spiral groove 9035. At the same time, the main gear 9032 engages with the driven gear 9041 to rotate, the driven gear 9041 drives the pair of wire squeezing wheels 9043 to rotate towards each other through the idler gear 9042, so as to form stable feeding or constraint of the grass cutting rope 905. The grass cutting rope 905 moves along the preset square path in high-speed rotation, and completes the grass square pruning quickly and neatly.

[0049] The embodiments of the present application are disclosed, but are not limited to the embodiments. Those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, which are within the protection scope of the present application.

Claims

1. A municipal road environment-friendly greening mowing device, characterized in that, The utility model provides a kind of grass cutting vehicle, including frame (1), walking wheel (2) is equipped on the frame (1), handrail (3) is equipped on the frame (1), protective cover (4) is equipped on the frame (1), grass collecting box (5) is equipped on the back of protective cover (4), interlayer (6) is equipped in protective cover (4), range control mechanism (7) is hoisted in the interlayer (6), square grid movement mechanism (8) is hoisted in the bottom end of range control mechanism (7), mowing mechanism (9) is hoisted in the moving end of square grid movement mechanism (8), grass beating cavity (10) is equipped in the interlayer (6) bottom end position of protective cover (4), square hole (11) is opened in the top of grass beating cavity (10), mowing mechanism (9) is movably arranged on square hole (11). The square grid movement mechanism (8) is configured to drive the mowing mechanism (9) to move in a closed square trajectory in a plane perpendicular to the rotational axis of the mowing mechanism (9). The range control mechanism (7) is configured to adjust and lock the driving amplitude of the square grid movement mechanism (8) to change the coverage range of the square trajectory made by the mowing mechanism (9) to adapt to grass squares of different sizes.

2. The green grass cutting device for municipal road environmental protection according to claim 1, characterized in that, The range control mechanism (7) includes a fixed component (701), a first movable component (702), a second movable component (703), and a driving unit (704). The fixed component (701) is fixedly hoisted in the interlayer (6). The first movable component (702) and the second movable component (703) are movably arranged on the fixed component (701). One end of the driving unit (704) is fixedly arranged on the protective cover (4), and the other end of the driving unit (704) is movably inserted into the protective cover (4) and engaged with the first movable component (702).

3. The green grass cutting device for municipal road environmental protection according to claim 2, characterized in that, The fixed component (701) includes a top plate (7011), a bottom plate (7012), a rotating hole (7013), a notch (7014), a rotating column (7015), a limiting block (7016), and a square hole (7017). The top plate (7011) is fixedly hoisted on the inner top wall of the protective cover (4). The bottom plate (7012) is fixedly connected to the bottom end of the top plate (7011). The rotating hole (7013) is opened on the top plate (7011). The notch (7014) is opened on the outer side wall of the top plate (7011) and communicates with the rotating hole (7013). The rotating column (7015) is annularly and equidistantly arranged on the bottom plate (7012). The limiting block (7016) is annularly and equidistantly fixedly arranged on the bottom plate (7012). The square hole (7017) is opened on the bottom plate (7012). The first movable component (702) is rotatably arranged on the rotating hole (7013). The second movable component (703) is sleeved on the rotating column (7015) and the limiting block (7016).

4. The green grass cutting device for municipal road environmental protection according to claim 3, characterized in that, The first movable element (702) comprises a rotating ring (7021), an inner tooth groove (7022) and an outer tooth groove (7023), the rotating ring (7021) is rotatably arranged on the rotating hole (7013), the inner tooth groove (7022) is annularly and equidistantly arranged on the inner wall of the rotating ring (7021), the outer tooth groove (7023) is arranged on the outer wall of the rotating ring (7021) at the position of the gap (7014), and the output end of the driving unit (704) is meshedly connected to the outer tooth groove (7023).

5. The green grass cutting device for municipal road environmental protection according to claim 4, characterized in that, The second movable element (703) comprises a ladder block (7031), a gear (7032), a sliding hole (7033) and a straight tooth groove (7034), the sliding hole (7033) is arranged on the ladder block (7031), the ladder block (7031) is movably sleeved on the limiting block (7016) through the sliding hole (7033), the gear (7032) is fixedly sleeved on the rotating column (7015), the straight tooth groove (7034) is arranged on the outer wall of the ladder block (7031), one end of the gear (7032) is meshedly connected to the inner tooth groove (7022), and the other end of the gear (7032) is meshedly connected to the straight tooth groove (7034).

6. The green grass cutting device for municipal road environmental protection according to claim 1, characterized in that, The square grid movement mechanism (8) comprises a hanging column (801), a hanging plate (802), a motor (803), a driving shaft (804), a sliding rod (805), an outer ring (806), a sliding block (807), a double-shaft assembly (808), a pulley (809) and a spring (810), a plurality of hanging columns (801) are fixedly inserted into the range control mechanism (7), the hanging plate (802) is fixedly connected to the bottom end of the hanging column (801), the motor (803) is arranged on the hanging plate (802), the driving shaft (804) is rotatably arranged on the hanging plate (802), the output end of the motor (803) is meshedly connected to the bottom end of the driving shaft (804), the sliding rod (805) is fixedly connected to the top end of the driving shaft (804), the outer ring (806) is fixedly sleeved on the sliding rod (805), the sliding block (807) is slidably sleeved on the sliding rod (805), the spring (810) is sleeved on the sliding rod (805) at a position between the driving shaft (804) and the sliding block (807), the double-shaft assembly (808) is fixedly connected to the bottom end of the sliding block (807), the pulley (809) is rotatably connected to the top end of the sliding block (807), and one end, away from the sliding block (807), of the pulley (809) is movably inserted into the range control mechanism (7).

7. The green grass cutting device for municipal road environmental protection according to claim 6, characterized in that, The double shaft assembly (808) comprises a first guide rail (8081), a first moving plate (8082), a first guide groove (8083), a second guide rail (8084), a frame (8085), a second moving plate (8086) and a second guide groove (8087), the first guide rail (8081) is fixedly arranged at the bottom end of the hanging plate (802), the first guide groove (8083) is arranged at the top end of the first moving plate (8082), the first moving plate (8082) is slidably arranged on the first guide rail (8081) through the first guide groove (8083), the second guide rail (8084) is fixedly arranged at the bottom end of the first moving plate (8082), the second guide groove (8087) is arranged at the top end of the second moving plate (8086), the second moving plate (8086) is slidably arranged on the second guide rail (8084) through the second guide groove (8087), and one end of the frame (8085) is fixedly connected to the bottom end of the sliding block (807), and the other end of the frame (8085) is fixedly connected to the outer wall of the second moving plate (8086).

8. The green grass cutting device for municipal road environmental protection according to claim 1, characterized in that, The grass cutting mechanism (9) comprises a rotating power head (901), a grass hitting head (902), a wire winding assembly (903), a wire extruding assembly (904) and a grass hitting rope (905), the rotating power head (901) is fixedly hung on the moving end of the square grid movement mechanism (8), the grass hitting head (902) is fixedly sleeved on the output end of the rotating power head (901), the wire winding assembly (903) is arranged in the grass hitting head (902), the wire extruding assembly (904) is arranged in the grass hitting head (902) in an annular and equidistant manner, one end of the grass hitting rope (905) is connected to the wire winding assembly (903), and the other end of the grass hitting rope (905) is movably arranged on the outer wall of the grass hitting head (902).

9. The green grass cutting device for municipal road environmental protection according to claim 8, characterized in that, The wire winding assembly (903) comprises a motor (9031), a main gear (9032), a winding shaft (9033), a wire groove (9034) and a spiral groove (9035), the motor (9031) is fixedly embedded at the top end of the grass hitting head (902), the main gear (9032) is fixedly connected to the output end of the motor (9031), the winding shaft (9033) is fixedly connected to the bottom end of the main gear (9032), the wire groove (9034) is vertically and equidistantly arranged on the outer wall of the winding shaft (9033), the spiral groove (9035) is arranged on the wire groove (9034), one end of the grass hitting rope (905) is fixedly connected to the wire groove (9034) and movably wound on the spiral groove (9035), and the other end of the grass hitting rope (905) is movably arranged on the through hole in the outer wall of the grass hitting head (902).

10. The green grass cutting device for municipal road environmental protection according to claim 9, characterized in that, The wire extruding assembly (904) comprises a driven gear (9041), an idle gear (9042) and wire extruding wheels (9043), the driven gear (9041) is arranged in the grass brushing head (902) in a ring shape and is equidistantly rotatable and is engagedly connected to the main gear (9032), the idle gear (9042) is arranged in the grass brushing head (902) in a ring shape and is equidistantly rotatable and is engagedly connected to the driven gear (9041), the wire extruding wheels (9043) are fixedly connected to the driven gear (9041) and the idle gear (9042), and the middle part of the grass brushing wire (905) is frictionally contacted between the two wire extruding wheels (9043).

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