An automatic grass collection and packing intelligent lawn mower

Abstract

The present invention relates to an intelligent lawn mower for automatically baling grass, and belongs to the technical field of garden tools. The chassis of the machine on which the cutting platform is placed also houses a baling box and a grass collecting box; one side of the cutting platform leads to the grass collecting box through a side discharge pipe; the grass feeding mechanism installed in the middle of the grass collecting box is equipped with a pair of axial limit screws driven by a telescopic motor, and the two screws and the corresponding nuts in the support seat constitute a lifting spiral pair, and the support seat supports a tubular vertical spiral grass feeder that is looped outside it; the baling mechanism installed in the baling box contains a grass-separating ring that docks with the funnel mouth at the bottom of the grass collecting box body, and a baling box body with a ring groove on the lower surface, and a continuous bag that can be pulled out is placed in the ring groove; the bag outlet in the middle of the baling device under the baling box body is equipped with a transverse bag collecting rod and a longitudinal bag collecting rod that can move across the bag outlet, and the bag collecting rod can contact an electric heating device. The present invention can continuously cycle to complete the operations of mowing, collecting grass, bagging, baling, and discharging, significantly improving work efficiency and reducing labor intensity.

Description

Technical Field

[0001] The present invention relates to a lawn mowing device, in particular to a grass collection and automatic packaging intelligent lawn mower, belonging to the technical field of gardening tools. Background Art

[0002] As understood by the applicant, existing lawn mowing devices can be divided into large commercial lawn mowers and small household lawn mowers. From the perspective of intelligence, they can be divided into riding lawn mowers, push lawn mowers, and autonomous intelligent lawn mowers. The typical structure of an existing intelligent lawn mower is disclosed in the Chinese patent document with the application number 202223081339.8, which includes a walkable frame. Below the middle of the frame, a cutting table is installed through a lifting mechanism. The lifting mechanism includes a front connecting rod and a rear connecting rod whose upper ends are respectively hinged under the frame. The lower ends of the front connecting rod and the rear connecting rod are respectively hinged to the front end and the rear end of the cutting table, forming a parallelogram linkage mechanism; A sliding sleeve is hinged in the middle of the rear connecting rod. A suspension rod forming a moving pair with it is inserted through the sliding sleeve. The upper end of the suspension rod is hinged to the lower end of a rocker. The upper end of the rocker is hinged to the frame; The middle of the rocker is hinged to the telescopic end of a telescopic driving device, and the other end of the telescopic driving device is hinged to the frame.

[0003] Although the above-mentioned existing intelligent lawn mowers for unmanned operation are efficient and have good operation effects, how to handle the cut grass clippings is an unsolved problem; Since the intelligent lawn mower cannot automatically handle the cut grass clippings, the remaining work can only be filled by manual labor, resulting in reduced work efficiency and increased labor intensity. In addition, although some riding and push lawn mowers are equipped with a supporting grass collection box and grass collection basket, which can solve this problem to a certain extent, it is necessary to rely on manpower to unload the grass collection basket and pour the grass clippings into the recycling station in the designated area. Therefore, the above problem still cannot be properly solved; As a result, how to automatically dispose of the cut grass clippings by an intelligent lawn mower or a lawn mowing robot has become a major technical problem. Summary of the Invention

[0004] The purpose of the present invention is to propose an intelligent lawn mower with automatic grass collection and packaging that can automatically complete the removal of grass clippings after gathering and packaging them in view of the problems existing in the prior art.

[0005] To achieve the above purpose, the basic technical solution of the intelligent lawn mower with automatic grass collection and packaging of the present invention is: including a chassis for installing a cutting table, and the chassis also installs a packaging box and a grass collection box located on the packaging box; One side of the cutting table leads to the grass collection box through a side discharge pipe;

[0006] The grass collection box body of the grass collection box is installed on the bag outlet box body of the lower packaging box. Its bottom is funnel-shaped and a grass feeding mechanism is installed in the middle; A packaging mechanism sleeved on the lower part of the grass feeding mechanism is installed on the upper part of the bag outlet box body. The lower part is open at the rear side, and an output conveyor belt is installed at the bottom;

[0007] The grass feeding mechanism comprises an isolation cylinder fixed relatively to the grass collecting box, a mounting frame and a connecting plate, wherein the isolation cylinder is sleeved on the upper part of the tubular vertical spiral grass feeder; the mounting frame is located in the upper part of the tube of the spiral grass feeder, and its lower end is fixedly connected to the connecting plate; a pair of axial limit screws driven by a telescopic motor are supported between the mounting frame and the connecting plate, and the two screws and corresponding nuts in the support seat form a lifting screw pair, and the support seat supports the spiral grass feeder driven by the rotating motor sleeved outside it through a bearing;

[0008] The packaging mechanism comprises a packaging box cover fixedly connected to the upper part of the packaging box, the upper surface of the packaging box cover is fixedly connected to the grass separation ring connected to the funnel opening at the bottom of the grass collecting box body, and the lower surface covers the ring groove-shaped packaging box body, and a pullable continuous bag is placed in the ring groove of the packaging box body; a packaging device is installed under the packaging box body;

[0009] A transverse bag collecting rod and a longitudinal bag collecting rod are respectively installed in two vertical directions of the bag outlet in the middle of the packaging device, which can move across the bag outlet. At least one of the transverse bag collecting rod and the longitudinal bag collecting rod can contact the electric heating device fixed on one side.

[0010] The grass collecting and automatic baling intelligent lawn mower of the present invention organically combines grass collecting and baling, and can operate in a cycle. When working, the grass clippings cut by the high-speed rotation of the cutter are thrown out from the grass discharge port and enter the grass collecting box through the side discharge pipe for collection; then, under the action of the spiral grass feeder of the grass feeding mechanism, they are transported downward through the bag outlet of the baling mechanism to the lower part of the continuous bag; when the grass clippings are full, the driven lifting screw pair drives the spiral grass feeder to rise, making room for baling displacement; then, the horizontal bag collecting rod and the longitudinal bag collecting rod are driven to make corresponding movements across the bag outlet, and the bag outlet of the lower continuous bag is closed and sealed by pressing against the electric heating device, and is disconnected and separated from the upper part, and the lower continuous bag filled with grass clippings falls to the output conveyor belt and is output from the baling outlet. The remaining upper continuous bag forms the next bag bottom at the welded seal. After being pulled down to the required length, it becomes the lower continuous bag with a bottom for the next cycle of grass collecting and baling. Therefore, the operations of mowing, grass collecting, bagging, baling and discharging can be completed in a continuous cycle, which significantly improves work efficiency and reduces labor intensity.

[0011] A further improvement of the present invention is that: a cutting platform is installed at the lower front part of the chassis, a battery compartment is placed at the upper middle part, and a baling box and a grass collecting box are placed at the upper rear part.

[0012] A further improvement of the present invention is that: the upper ends of the two lead screws are respectively provided with transmission gears of the coupling shaft, one of the two transmission gears is transmission-connected to the output shaft of the telescopic motor through a driving gear, and the two transmission gears are transmission-connected through a transition gear.

[0013] A further improvement of the present invention is that: on two perpendicular directions of the bag outlet in the middle of the packing device, there are respectively installed a horizontal bag collecting rod and a vertical bag collecting rod that can be driven by a horizontal motor and a vertical motor through synchronous belts.

[0014] Another further improvement of the present invention is that: the support base is supported by upper and lower bearing support sleeves outside the bearing mounting seat, and the bearing mounting seat is fixedly connected with the internal gear and the spiral hay feeder; the internal gear meshes with the driving gear driven by the rotating motor.

[0015] A still further improvement of the present invention is that: the cutting table contains an approximately elliptical cutting table seat with two ends being arcs, and two spaced rotary cutting knives are installed at the bottom of the cutting table seat, and a straw discharge port connected to the lower end of the side discharge pipe is installed at one arc end.

[0016] A yet further improvement of the present invention is that: a contact sensor is installed on the bottom surface of the spiral hay feeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the present invention.

[0018] Figure 2 It is Figure 1 A three-dimensional structural schematic diagram from another perspective.

[0019] Figure 3 It is Figure 1 A three-dimensional structural schematic diagram of the cutting table in the embodiment.

[0020] Figure 4 It is Figure 1 A sectional structural schematic diagram of the hay collecting and packing assembly in the embodiment.

[0021] Figure 5 It is Figure 1 A three-dimensional exploded structural schematic diagram of the hay collecting and packing assembly in the embodiment.

[0022] Figure 6 It is Figure 1 A sectional structural schematic diagram of the hay feeding mechanism in the embodiment.

[0023] Figure 7 It is Figure 1 A three-dimensional exploded structural schematic diagram of the hay feeding mechanism in the embodiment.

[0024] Figure 8 It is Figure 1 A three-dimensional exploded structural schematic diagram of the packing mechanism in the embodiment.

[0025] Figure 9 It is Figure 1 A structural schematic diagram inside the box of the packing mechanism in the embodiment.

[0026] Figure 10 It isFigure 1 Schematic three-dimensional structure diagram of the packing mechanism box in the embodiment.

[0027] In the figure: 1. Side discharge pipe; 2. Battery compartment; 3. Chassis; 4. Cutting table; 5. Grass collecting box; 6. Packing box; 7. Packing output port; 8. Packing bag; 9. Output conveyor belt; 10. Synchronous belt; 11. Synchronous pulley; 12. Transverse bag collecting rod; 13. Transverse motor; 14. Longitudinal motor; 15. Electric heating device; 16. Synchronous belt; 17. Bag outlet; 18. Longitudinal bag collecting rod; 19. Synchronous pulley; 23. Top cover; 24. Isolation cylinder; 25. Telescopic motor; 26. Telescopic motor fixing seat; 27. Driving gear; 28. Intermediate gear; 29. Driving gear; 30. Driving gear; 31. Gear mounting shaft; 32. Mounting skeleton; 33. Lead screw; 34. Lead screw; 35. Connecting plate; 36. Inner gear gland; 37. Rotary motor; 38. Rotary motor fixing seat; 39. Driving gear; 40. Inner gear; 41. Bearing cover; 42. Bearing; 43. Support seat; 44. Bearing mounting seat; 45. Bearing; 46. Bearing cover; 47. Screw-type grass feeder; 48. Contact sensor; 49. Grass separating collar; 50. Packing box cover; 51. Continuous bag; 52. Packing box body; 53. Packing device; 54. Grass collecting box body; 55. Grass feeding mechanism; 56. Packing mechanism; 58. Bag outlet box body. Embodiment Example

[0028] The basic structure of the intelligent grass mower with automatic grass collection and packing in this embodiment is as Figure 1 and Figure 2 shown, including a cutting table 4 arranged under the front part of the feasible walking chassis 3, a battery compartment 2 above the middle part, a packing box 6 above the rear part, and a grass collecting box 5 located on the packing box 6. One side of the cutting table 4 leads to the grass collecting box 5 through a side discharge pipe 1, and the packing bag 8 in the packing box 6 can fall onto the horizontal output conveyor belt 9 through the lower packing output port 7 and be output backward.

[0029] The structure of the cutting table 4 is as Figure 3 shown, with an approximately elliptical cutting table base 4-33 with rounded ends at both ends, and two spaced first and second rotary cutting blades 4-35, 4-38 installed at the bottom, and a grass discharge port 4-39 connected to the lower end of the side discharge pipe 1 installed at one rounded end. The first and second rotary cutting blades 4-35, 4-38 are respectively driven to rotate by coaxial cutting motors 4-34, 4-37.

[0030] The grass collection and packing assembly located in the grass collecting box 5 and the packing box 6 is as Figure 4 and Figure 5As shown, the upper rectangular cross-section grass collecting box 54 is placed on the bag outlet box 58 in the lower packing box 6, the bottom of the grass collecting box 54 is funnel-shaped, and the grass feeding mechanism 55 is installed in the middle. The upper part of the bag outlet box 58 with an opening on the rear side is installed with a packing mechanism 56 which is sleeved on the lower part of the grass feeding mechanism 55, and the bottom is arranged with an output conveyor belt 9.

[0031] The specific structure of the grass delivery mechanism 55 is shown in FIG. Figure 7 As shown, the isolation cylinder 24 with a top cover 23 is fixed to the grass collecting box 5 and is sleeved on the upper part of the tubular vertical spiral grass feeder 47. The mounting frame 32 fixed relatively to the grass collecting box 5 is located in the upper part of the spiral grass feeder 47 tube, and its lower end is fixedly connected to the connecting plate 35, and a pair of axially limited rotatable screws 33 and 34 are supported between the two. The upper ends of the two screws are respectively equipped with coupling transmission gears 30 and 29. One of the two gears is connected to the output shaft of the telescopic motor 25 through the driving gear 27, and the two gears are driven by the transition gear 28. The middle sections of the two lead screws 33 and 34 and the two nuts of the support seat 43 form a lifting screw pair. The support seat 43 supports the bearing mounting seat 44 sleeved outside it through the upper and lower bearings 42 and 45. The bearing mounting seat 44 is fixedly connected with the internal gear 40 and the spiral grass feeder 47 with a contact sensor 48 installed on the bottom surface. The internal gear 40 is meshed with the driving gear 39 driven by the rotating motor 37, so that the spiral grass feeder 47 can rotate and lift. The two synchronous lifting screw pairs naturally form a circumferential constraint on the support seat. When the telescopic motor rotates, the support seat and the spiral grass feeder 47 can be lifted and lowered as needed through the screw pair.

[0032] The specific structure of the packaging mechanism 56 is as follows: Figure 8 , Figure 9 and Figure 10 As shown, it includes a square-shaped packing box cover 50 fixedly connected to the upper part of the packing box 6, the upper surface of the packing box cover is fixedly connected to the grass separation ring 49 connected to the bottom funnel of the grass collecting box body 54, and the lower surface covers the ring groove-shaped packing box body 52, and the ring groove of the packing box body 52 is placed with a continuous bag 51 that can be pulled out (the continuous bag becomes a packing bag after being sealed and separated); a packing device 53 is installed under the packing box body 52. The bag outlet 17 in the middle of the packing device 53 is respectively equipped with a horizontal bag collecting rod 12 and a longitudinal bag collecting rod 18 in two vertical directions, which can be driven by the corresponding horizontal motor 13 or the longitudinal motor 14 through the synchronous belt (see the synchronous belt 10, the synchronous belt 16, the synchronous wheel 11, and the synchronous wheel 19 in the figure). The horizontal bag collecting rod 12 and the longitudinal bag collecting rod 18 can be driven to move horizontally or vertically across the bag outlet 17, and one of them can contact the electric heating device 15 fixed on one side.

[0033] When the grass collection and automatic packing intelligent lawn mower of this embodiment works, the mowing mechanism is similar to that of the prior art. The grass clippings cut by the high-speed rotation of the cutter are thrown out from the grass discharge port, enter the grass collection box 5 through the side discharge pipe 1 and gather; then, under the action of the spiral grass feeder 47 driven by the rotating motor 37 of the grass feeding mechanism, it is transported downward to the lower part of the continuous bag 51 through the bag outlet 17 of the packing mechanism; when the contact sensor 48 of the spiral grass feeder 47 senses that the lower part of the continuous bag 51 is full of grass clippings, the telescopic motor 25 is started, and the spiral grass feeder 47 is driven to rise through the lifting screw pair composed of the lead screws 33, 34 and the support seat 43, so that the lower part of it gives way to the lateral bag receiving rod 12 and the longitudinal bag receiving rod 18 of the packing device 53 to shift, avoiding movement interference; then, the lateral bag receiving rod 12 and the longitudinal bag receiving rod 18 of the packing device 53 make a lateral or longitudinal movement across the bag outlet 17 to tie the upper opening of the continuous bag 51, and through pressing against the electric heating device 15, the tied opening is heat-sealed and separated, and it falls onto the output conveyor belt 9 and is output from the packing output port 7. The remaining part of the continuous bag 51 is fused to form the bottom of the next bag, and after being pulled to the required length, it is prepared for the next cycle of grass collection and packing.

[0034] Thus, this embodiment has the following remarkable advantages:

[0035] 1) During the packing process, grass is collected by the grass collection box, so continuous mowing can be carried out, significantly improving the working efficiency of the lawn mower. It can complete the packing of one packing bag in about 1 minute.

[0036] 2) The packing device is integrally installed on the lawn mowing robot without affecting the working performance of its chassis.

[0037] 3) The side grass discharge structure mode greatly reduces the overall size, making the lawn mower flexible in operation and strong in passing performance.

[0038] 4) The packing bag has sufficient volume and is convenient for consignment after being discharged.

[0039] 5) The packing function enables the lawn mower to efficiently and orderly complete the mowing work of the grassland, and is very suitable for the maintenance of large-area grasslands.

[0040] In addition to the above embodiments, the present invention can also have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. An automatic grass collection and packing intelligent lawn mower, comprising a chassis (3) for arranging a cutting table (4), characterized in that: The chassis also houses a baling box (6) and a grass collecting box (5) located on the baling box; one side of the cutting platform leads to the grass collecting box through a side discharge pipe (1); The grass collecting box body (54) of the grass collecting box is placed on the bag outlet box body (58) of the lower packing box, and its bottom is funnel-shaped, and a grass delivery mechanism (55) is installed in the middle; the upper part of the bag outlet box body is installed with a packing mechanism (56) sleeved on the lower part of the grass delivery mechanism, the lower rear side is open, and the bottom is provided with an output conveyor belt (9); The grass feeding mechanism comprises an isolating cylinder (24) fixed relative to the grass collecting box, a mounting frame (32) and a connecting plate (35), wherein the isolating cylinder is sleeved on the upper part of the tubular vertical spiral grass feeding device (47); the mounting frame is located at the upper part of the tube of the spiral grass feeding device, and its lower end is fixedly connected to the connecting plate (35); a pair of axial limit screws driven by a telescopic motor are supported between the mounting frame and the connecting plate, and the two screws and corresponding nuts in the support seat (43) form a lifting screw pair, and the support seat supports the spiral grass feeding device driven by the rotating motor which is sleeved outside the support seat through a bearing; The packaging mechanism comprises a packaging box cover fixedly connected to the upper part of the packaging box, the upper surface of the packaging box cover is fixedly connected to the grass separation ring connected to the funnel opening at the bottom of the grass collecting box body, and the lower surface covers the ring groove-shaped packaging box body, and a pullable continuous bag is placed in the ring groove of the packaging box body; a packaging device is installed under the packaging box body; A transverse bag collecting rod (12) and a longitudinal bag collecting rod (18) are respectively arranged in two vertical directions at the bag outlet (17) in the middle of the packaging device and can move across the bag outlet, and at least one of the transverse bag collecting rod and the longitudinal bag collecting rod can contact the electric heating device (15) fixed on one side; The support seat is supported by upper and lower bearings and sleeved on a bearing mounting seat outside the support seat, and the bearing mounting seat is fixedly connected to the internal gear and the spiral grass feeder; the internal gear is meshed with the driving gear driven by the rotating motor; The bottom surface of the spiral grass feeder is provided with a contact sensor.

2. The intelligent grass mower with automatic grass collection and packing according to claim 1, characterized in that: A cutting platform is installed at the lower front part of the chassis, a battery compartment is installed at the upper middle part, and a baling box and a grass collecting box are installed at the upper rear part.

3. The automatic grass collection and packing intelligent lawn mower according to claim 2, wherein: The upper ends of the two lead screws are respectively provided with transmission gears of the coupling shafts, one of the two transmission gears is transmission-connected with the output shaft of the telescopic motor through a driving gear, and the two transmission gears are transmission-connected through a transition gear.

4. The automatic grass collection and packing intelligent lawn mower according to claim 3, characterized in that: A transverse bag collecting rod and a longitudinal bag collecting rod are respectively arranged on two vertical directions of the bag outlet in the middle of the packaging device, and can be driven by a transverse motor and a longitudinal motor through a synchronous belt.

5. The intelligent lawn mower for automatically bundling collected grass according to claim 4, characterized in that: The cutting platform comprises an approximately elliptical cutting platform seat with arc ends, two spaced rotary cutting knives are arranged at the bottom of the cutting platform seat, and a grass discharge port connected with the lower end of the side discharge pipe is arranged at one arc end.

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