Electric mowing and collecting machine with safety

Abstract

The utility model provides a safe electric grass mowing and collecting machine, which relates to the technical field of grass mowers, and comprises a grass mowing machine main body and a grass collecting device, the grass collecting device comprises a grass sucking disc assembly, a grass collecting box assembly and a pipeline assembly, the grass collecting box assembly comprises two grass collecting bags, a grass collecting box upper cover part and a mounting frame part, the grass collecting box upper cover assembly is fixedly installed on the rear portion of the mowing machine body through the installation frame assembly, a flow dividing groove is formed in the inner top face of the grass collecting box upper cover, an air outlet is formed in the grass collecting box upper cover, one end of the front side of the grass collecting box upper cover extends into the pipeline assembly, and an arc-shaped flow guide structure is arranged at the end opening of the end, extending into the grass collecting box upper cover, of the pipeline assembly. The air outlet direction of the pipeline assembly faces the bending direction of the flow dividing groove, and two grass collecting bags arranged in the left-right direction are installed on a cover opening of a covering piece on the grass collecting box. The grass collecting box assembly structure is reasonably arranged, grass clippings are collected in a split-flow mode, the grass collecting box cannot be unbalanced, and operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lawn mower technical field, specifically is a kind of electric grass cutting grass collector with security. BACKGROUND

[0002] As the core product of garden machinery, lawn mower is widely used in lawn trimming management work of courtyard, park, football field, golf course, municipal garden and so on. With the improvement of urban and rural living environment at home and abroad, the demand for lawn mower is increasing sharply, and the market is mainly manned by hand or backpack internal combustion engine power mower, and a few adopt internal combustion engine power riding mower or electric zero steering mower.

[0003] Backpack lawn mower almost does not configure grass collecting device, and most of the hand-push lawn mower does not configure grass collecting device, there is the problem that grass clippings are directly thrown on the lawn after mowing, which affects the appearance of the lawn, and the grass clippings or the grass clippings accumulated on the lawn pollute the environment, and a few hand-push lawn mowers with lower grass outlet integrated grass collecting device exist the problems of low grass collecting efficiency and inconvenient grass unloading. Most of the riding lawn mower or zero steering mower does not configure grass collecting device, and a few adopt single large grass collecting box device, which exists the problems of grass collecting box disassembly and grass clippings dumping and cleaning difficulty, and the grass clippings collected by two grass collecting boxes are unevenly distributed, which affects the safety of slope operation, for example, patent application No. 202122120894.6, or the double grass collecting box device using the balance principle of balance shaft and the structure of flow divider valve, which exists the problems of complex structure and intermittent mass imbalance between two grass collecting boxes, for example, patent application No. 201910638076.X. And the grass collecting device on the market needs to be recognized by the operator, which exists the problems of delayed full grass recognition and damaged grass cutting device. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides an electric grass cutting grass collector with security, which can collect grass clippings, reasonably set the structure of grass collecting box assembly, collect grass clippings, and ensure the safety of operation.

[0005] To achieve the above technical objectives, the adopted technical solution is: a safe electric lawnmower with a grass-collecting mechanism, comprising a lawnmower body for mowing and a grass-collecting device mounted on the lawnmower body. The grass-collecting device includes a suction disc assembly for sucking up grass clippings, a grass-collecting box assembly for collecting grass clippings, and a pipe assembly connecting the suction disc assembly and the grass-collecting box assembly for transmitting grass clippings. The grass-collecting box assembly includes two grass-collecting bags, a grass-collecting box cover assembly, and a mounting frame assembly. The grass-collecting box cover assembly is mounted on the mounting frame assembly and is foldable and closable. The mounting bracket assembly is fixedly installed at the rear of the lawnmower body. The inner top surface of the grass collection box cover assembly has an upwardly protruding and curved diversion groove in the left and right direction. The protruding position of the diversion groove is close to the air inlet of the pipe assembly. The grass collection box cover is provided with an exhaust port. One end of the front side of the grass collection box cover extends into the pipe assembly. The end port of the pipe assembly extending into the grass collection box cover has an arc-shaped flow guide structure, so that the air outlet of the pipe assembly is oriented towards the curvature direction of the diversion groove. Two grass collection bags are installed at the cover opening of the grass collection box cover assembly in the left and right direction.

[0006] The beneficial effects are: the problem of inconvenient disassembly of traditional single large grass collection bags is solved by dividing one large grass collection bag into two, which is convenient for both installation and cleaning. In addition, the top surface structure of the grass collection box is reasonably designed, combined with the arc-shaped guide structure on the extended passenger passage. By utilizing the air intake without the need to add a flow divider cone, grass clippings can be evenly collected in the two grass collection boxes. This solves the problem of uneven weight distribution of the lawnmower body and safety issues on slopes caused by uneven grass clipping collection in traditional double grass collection bags.

[0007] Furthermore, the bottom of the grass-collecting bag is a grass-collecting bag base.

[0008] The beneficial effects are: the base of the grass collection bag is a rigid and fixed structure, which can serve as a bottom support to facilitate the dumping of grass clippings. In addition, when installing the grass collection bag, pulling the base of the grass collection bag allows the grass collection bag to be quickly opened and formed, which solves both the problem of difficult grass clipping dumping and cleaning, and the problem of difficult maintenance after the grass collection bag is installed.

[0009] Furthermore, a pull strap is installed on the bottom surface of the grass-collecting bag base.

[0010] The beneficial effects are: the pull strap can further improve the dumping speed and installation speed. The pull strap also serves as a handle to lift the entire hay collection bag and shake it, as well as a handle to pull open the entire hay collection bag.

[0011] Furthermore, an exhaust filter screen is installed on the exhaust vent.

[0012] The beneficial effects are: the exhaust filter screen filters the air stream containing grass clippings, preventing grass clippings from being discharged from the exhaust vent and polluting the environment, and also preventing grass clippings from escaping from the exhaust vent.

[0013] Furthermore, the grass collection box cover assembly includes a grass collection box cover and a cover mounting frame. The cover mounting frame is mounted on the cover assembly. The grass collection box cover is mounted on the cover mounting frame in a flip-openable manner, and the grass collection bag is detachably mounted on the cover mounting frame.

[0014] The beneficial effects are: the structure of the grass collection box cover assembly is reasonably set up, which is divided into two parts: the grass collection box cover and the cover mounting frame. The cover mounting frame serves as an installation and support component, enabling the installation of the cover assembly with the mounting frame without affecting the opening and closing of the grass collection box cover, and can also be used as an installation component for the grass collection bag.

[0015] Furthermore, the upper part of the grass collection bag is provided with a grass collection bag mounting tray for placing on the upper cover mounting frame.

[0016] The beneficial effects are: by stacking the bags, the collection bags can be quickly installed and disassembled, making them convenient and efficient to use.

[0017] Furthermore, the grass suction disc assembly includes a mowing platform housing, a grass collection blade, and a mowing motor. The grass collection blade is elongated and its center is connected to the mowing motor mounted on the mowing platform housing. The two ends of the grass collection blade have centrally symmetrical tail wings. The grass collection blade is driven by the mowing motor to rotate and cut grass, forming a negative pressure area below the grass collection blade. The mowing platform housing above the grass collection blade has a grass discharge port for connecting to the pipe assembly.

[0018] The beneficial effects are: the grass suction disc assembly combines grass cutting and suction, and by using a strip-shaped grass-collecting cutter with a tail fin, it achieves suction while cutting, which is more reasonable, simplifies the structure, and makes it more convenient to use.

[0019] Furthermore, casters 2 for support and minimum positioning are installed on the outer side of the lawn mowing platform shell 5.

[0020] Beneficial effects: The casters support the entire grass-collecting disc assembly, providing support and limiting even if the mower shell detaches from its installation position, preventing the grass-collecting blades from being too low to generate negative pressure or scraping the lawn.

[0021] Furthermore, an anti-accumulation warning device is installed on the pipe of the pipeline assembly. This device includes a wind roller, an upper housing, a lower housing, and a whistle. The upper and lower housings are assembled into a single housing, which is sealed and fixed to the pipe of the pipeline assembly. A vertically oriented, rotatable wind roller is installed on the top surface of the upper housing, and a whistle is installed on the bottom surface of the lower housing. The whistle's air outlet is located inside the pipe of the pipeline assembly, and its air outlet corresponds to the wind roller. The beneficial effect is that it eliminates the need to rely on experience to determine whether the grass bags are full. When full, the air pressure generated by the accumulation triggers the whistle warning. The high-speed grass clippings flow, after passing the whistle, creates air pressure within the anti-accumulation warning device, causing the wind roller to rotate rapidly. The warning is provided through a dual-judgment system: the first judgment uses the sound of the whistle, and the second judgment uses the visual warning of the wind roller. With this structure, when the air pressure is insufficient (no grass clippings have accumulated), the wind roller will not rotate or will rotate slowly, preventing false warnings due to external interference. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a top view of the grass suction disc assembly of the present invention;

[0024] Figure 3 This is a schematic diagram of the grass suction disc assembly of the present invention;

[0025] Figure 4 This is a schematic diagram of the mounting bracket assembly structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the external structure of the grass collection box cover assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the grass collection box cover assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the grass collection box assembly structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the lower grass collection pipe assembly structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the upper grass collection pipe assembly structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the anti-stacking warning device of the present invention;

[0032] Figure 11This is a schematic diagram of the grass collection method of the electric lawnmower of the present invention; In the figure: A. Main body of the lawnmower; B. Grass suction disc assembly; C. Lower grass collection pipe assembly; D. Upper grass collection pipe assembly; E. Anti-accumulation warning device; F. Mounting frame assembly; G. Grass collection box assembly; H. Grass collection box top cover assembly; 1. Caster screw; 2. Caster; 3. Left mounting bracket; 4. Front hanging bracket; 5. Mower platform shell; 6. Pipe mounting seat; 7. Right mounting bracket; 8. Hanging bolt; 9. Locking nut; 10. Limiting ring; 11. Pipe hanging spacer; 12. Right rear hanging bracket 13. Left rear mounting bracket; a. Mowing disc discharge port; 14. Mowing blade; 15. Mowing blade self-locking nut; 16. Mowing blade retaining ring; 17. Blade holder; 18. Mowing motor; 19. Grass guard plate; b. Tail wing; 20. Mounting base; 21. Locking pin; 22. Left support tube; 23. Right support tube; 24. Hook plate; 25. Hook anti-vibration pad; 26. Positioning pin; 27. Welded base; 28. Grass collection box cover; 29. ​​Return torsion spring; 30. Cover mounting bracket; 31. Cover mounting plate 31. Mounting ring; 32. Top cover mounting lock pin; 33. Top cover mounting pin; 34. Top cover sealing gasket; 35. Top cover sealing gasket; c. Diversion groove; 36. Exhaust filter; 301. U-shaped bracket; 302. Connecting seat; 303. Welding seat; 304. Mounting seat; 305. Intermediate bracket; 37. Top cover reinforcing plate; 38. Bracket end rubber sleeve; 39. Top cover handle; d. Exhaust vent; 40. Straw bag mounting tray; 41. Straw bag; 42. Straw bag base; 43. Pull strap e. Handle; 44. Pipe connecting strip; 45. Tape mounting base; 46. Tape mounting screw; 47. Fixing torsion spring; 48. Lower pipe fixing strip; 49. Lower grass collection pipe; f. Pipe fixing hole; g. Guide limiting boss; h. Lower hanging hole; 50. Upper grass collection pipe; 51. Connecting strip locking seat; j. Arc-shaped flow guide structure; k. Indicator mounting hole; m. Pipe handle; n. Guide limiting groove; 52. Wind roller; 53. Upper housing; 54. Lower housing; p. Whistle. Detailed Implementation

[0033] The preferred embodiments of the invention are given below with reference to the accompanying drawings to illustrate the technical solution of the invention in detail. The corresponding drawings will be provided for detailed explanation of the invention. It should be particularly noted that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit or restrict the invention.

[0034] In the description of this embodiment, the terms "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] like Figures 1-11 As shown, a safe electric lawnmower with a grass collection device includes a main body A for mowing and a grass collection device mounted on the main body A. The main body A is not limited to the ride-on type shown in the illustration; it can also be a backpack-type or push-type lawnmower, primarily serving the functions of movement and mowing. The forward and backward direction of the electric lawnmower with a grass collection device refers to... Figure 1 The direction of travel is indicated by the front of the vehicle.

[0036] The grass collection device includes a suction disc assembly B for sucking up grass clippings, a grass collection box assembly G for collecting grass clippings, and a pipe assembly that connects the suction disc assembly B and the grass collection box assembly G for transporting grass clippings. The pipe assembly can be an integrated pipe or a split pipe, which can be selected according to the overall size of the lawnmower body A and the installation requirements. It includes a lower grass collection pipe assembly C and an upper grass collection pipe assembly D. The suction disc assembly B, the pipe assembly, and the grass collection box assembly G sequentially realize the suction, transport, and collection of grass clippings.

[0037] The grass collection box assembly G includes two grass collection bags 41, a grass collection box cover assembly H, and a mounting frame assembly F. The grass collection box cover 28 of the grass collection box cover assembly H is flip-open and mounted on the mounting frame assembly F, and is fixedly mounted on the rear of the lawnmower body A by the mounting frame assembly F. The inner top surface of the grass collection box cover 28 of the grass collection box cover assembly H has an upwardly protruding and curved diversion groove c in the left and right direction. The protruding position of the diversion groove c is close to the air inlet position of the pipe assembly. The grass collection box cover 28 is provided with an exhaust port d for air flow. The pipe assembly extends into one end (left or right end) of the front side of the grass collection box cover 28, that is, the pipe assembly is sealed and installed on the left or right end of the front side of the grass collection box cover 28. One end of the pipe assembly extending into the top cover 28 of the grass collection box has an arc-shaped flow guide structure j, which makes the air outlet direction of the pipe assembly face the bending direction of the diversion channel c. That is, the air inlet direction of the pipe before the arc-shaped flow guide structure j of the pipe assembly is the front-to-back direction, and after passing through the arc-shaped flow guide structure j, it smoothly transitions to the left-to-right direction. Two grass collection bags 41 arranged in the left-to-right direction are installed on the cover opening of the top cover assembly H of the grass collection box. When the top cover 28 of the grass collection box is opened, the grass collection bags 41 can be removed or installed.

[0038] The grass collection tray assembly B can be used for grass collection by a separate air suction, such as a fan + suction pipe or suction cup, or it can be integrated with the mowing system to achieve grass collection. For example, the grass collection tray assembly B includes a mowing platform housing 5, a grass collection blade 14, and a mowing motor 18. The grass collection blade 14 is long and narrow, and its center is connected to the mowing motor 18 installed on the mowing platform housing 5. The two ends of the grass collection blade 14 have centrally symmetrical tail fins b. The grass collection blade 14 acts as a fan. The grass collection blade 14 is driven by the mowing motor 18 to rotate and cut grass, forming a negative pressure area below the grass collection blade 14. The mowing platform housing 5 above the grass collection blade 14 has a grass discharge port a for connecting with the pipe assembly. The grass clippings are sucked up and discharged from the grass discharge port a to the pipe assembly.

[0039] The specific structure is as follows: Based on the main body A of the lawnmower, the upper part of the suction disc assembly B is attached to the lower suspension frame of the main body A of the lawnmower via the front mounting bracket 4, the right rear mounting bracket 12, and the left rear mounting bracket 13, forming the entire mowing and suction system. The middle part of the mounting frame assembly F is attached to the rear end of the frame of the main body A of the lawnmower via the hook plate 24 and the hook shock absorber 25, and the lower part is screwed to the rear end frame of the main body A of the lawnmower via the mounting base 20. The grass collection box cover assembly H is attached to the upper ends of the left support tube 22 and the right support tube 23 of the mounting frame assembly F via the cover mounting bracket 30. Two grass collection bags 41 are respectively installed on the cover mounting bracket 30 of the grass collection box cover assembly H via the grass collection bag mounting tray 40 for collecting grass clippings. The anti-accumulation indicator device E is screwed into the indicator device mounting hole k in the middle section of the upper grass collection pipe assembly D. The anti-accumulation indicator device E is equipped with a wind roller 52 and a whistle p for collecting grass clippings. The upper grass collection pipe assembly D, equipped with an anti-accumulation warning device E, is installed in the upper cover sealing gasket 35 of the grass collection box upper cover assembly H. The upper end of the upper grass collection pipe assembly D is provided with an arc-shaped flow guide structure j, which facilitates the uniform distribution and flow of grass clippings in conjunction with the flow diversion groove c in the grass collection box upper cover assembly H. The lower grass collection pipe assembly C is installed in the corresponding holes on both sides of the grass discharge port a of the grass suction plate assembly B and on the hanging bolt 8 through two fixed torsion springs 47 at the lower end. At the same time, the lower grass collection pipe assembly C is installed on the pipe mounting seat 6 of the grass suction plate assembly B through the lower hanging hole h. The upper end of the lower grass collection pipe assembly C is installed in the guide limiting groove n at the lower end of the upper grass collection pipe assembly D through the guide limiting boss g. The pipe fixing hole f on the pipe connecting rubber strip 44 of the lower grass collection pipe assembly C is installed on the connecting rubber strip locking seat 51 of the upper grass collection pipe assembly D to achieve anti-detachment fixation.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 8As shown, the grass suction disc assembly B mainly includes: caster screws 1, casters 2, left mounting bracket 3, front hanging bracket 4, mowing platform shell 5, pipe mounting base 6, right mounting bracket 7, hanging bolts 8, locking nuts 9, limit retaining rings 10, pipe hanging spacers 11, right rear hanging bracket 12, left rear hanging bracket 13, grass collecting cutter 14, cutter self-locking nut 15, cutter retaining ring 16, cutter holder 17, grass cutting motor 18, and grass baffle 19. The suction disc assembly B is based on the mower housing 5, which is essentially a vacuum cleaner casing. The upper right side of the mower housing 5 has a mower discharge port a for discharging mow clippings. The left mounting bracket 3 is welded to the left side of the mower housing 5, and the right mounting bracket 7 is welded to the right side. Casters 2 are attached to the outer sides of the left and right mounting brackets 3 and 7 respectively using caster screws 1, providing support and a minimum positioning for the suction disc assembly B during mowing operations to prevent damage to the lawn and scratches. The front mounting bracket 4 is welded to the upper front of the mower housing 5, the right rear mounting bracket 12 is welded to the upper right rear of the mower housing 5, and the left rear mounting bracket 13 is welded to the upper left rear of the mower housing 5. These three brackets constitute the mounting system for installing the suction disc assembly B on the machine. The mounting bracket 6 is screwed onto the top of the grass discharge port of the mowing platform shell 5 for installation in the lower hanging hole h on the lower grass collection pipe assembly C. The pipe hanging spacer 11 is installed to the right side of the grass discharge port a of the mowing platform shell through the hanging bolt 8, the limit retaining ring 10, and the locking nut 9 in sequence for installation in the fixing torsion spring 47 on the lower grass collection pipe assembly C. The two mowing motors 18 are respectively installed in the two mounting holes of the mowing platform shell 5. The blade holder 17, the grass collection cutter 14, the cutter retaining ring 16, and the cutter self-locking nut 15 are installed on the mowing motor 18 in sequence. The mowing motor 18, the blade holder 17, the grass collection cutter 14, the cutter retaining ring 16, and the cutter self-locking nut 15 together constitute the mowing system. The grass collection cutter 14 has tail wings b at both ends of the blade tip to increase the wind speed and create negative pressure in the mowing platform shell 5 during the rotation of the grass. The grass baffle 19 is installed on the lower right front of the mowing platform shell 5 to prevent grass clippings from falling.

[0041] like Figure 1 , 4As shown, the mounting bracket assembly F mainly includes: mounting base 20, locking pin 21, left support tube 22, right support tube 23, hook plate 24, hook anti-vibration pad 25, positioning pin shaft 26, and welding base 27. The mounting bracket assembly F is based on the welding base 27. The left support tube 22 is welded to the upper left of the welding base 27, and the right support tube 23 is welded to the upper right of the welding base 27. The hook plate 24 is welded to the middle of the left support tube 22 and the right support tube 23. The upper end of the hook plate 24 has a U-shaped structure to facilitate quick bracket installation. The hook anti-vibration pad 25 is attached to the bottom of the hook ring of the hook plate 24. The hook anti-vibration pad 25 is used to reduce vibration and prevent wear on the installation part. The positioning pin 26 is pressed into the hole in the middle of the welding base 27. The assembly consisting of the welding base 27, the left support tube 22, the right support tube 23, the hook plate 24, the hook anti-vibration pad 25, and the positioning pin 26 is installed into the hole in the middle of the mounting base 20 through the positioning pin 26. Then, the locking pin 21 is installed into the hole at the lower end of the positioning pin 26 to prevent it from falling off and limit the movement. The installation and disassembly are quick and convenient.

[0042] like Figure 1 , 4As shown in Figures 5 and 6, the grass collection box upper cover assembly H mainly includes: a grass collection box upper cover 28, a return torsion spring 29, an upper cover mounting bracket 30, an upper cover mounting retaining ring 31, an upper cover mounting locking pin 32, an upper cover mounting pin 33, an upper cover sealing gasket cover 34, an upper cover sealing gasket 35, an exhaust filter 36, an upper cover reinforcing plate 37, a bracket end rubber sleeve 38, and an upper cover handle 39. The grass collection box upper cover assembly H is based on the upper cover mounting bracket 30. The grass collection box upper cover 28 is sequentially mounted onto the upper cover mounting bracket 30 via the return torsion spring 29 and the upper cover mounting pin 33, enabling it to be flipped open and closed. The top of the grass collection box cover 28 is equipped with a shaped diversion groove c, which facilitates the even distribution of grass clippings transported through the upper grass collection pipe assembly D to the grass collection box cover assembly H, into the left / right grass collection bags 41. This avoids safety hazards such as machine tilting caused by uneven grass clipping distribution. The left side of the grass collection box cover 28 is equipped with an exhaust vent d, which facilitates the orderly discharge of air jets transported through the lower grass collection pipe assembly C and the upper grass collection pipe assembly D. The cover mounting retaining ring 31 and the cover mounting locking pin 32 are sequentially installed on the cover mounting pin 33. The upper cover sealing gasket 35 and the upper cover sealing gasket buckle 34 are riveted to the upper cover 28 of the grass collection box in sequence. The upper cover sealing gasket 35 is used for the installation and sealing between the upper grass collection pipe assembly D and the upper cover assembly H of the grass collection box. The exhaust filter screen 36 is riveted to the exhaust port d inside the upper cover 28 of the grass collection box. It is used to cut the air bundle that conveys grass clippings and make the air bundle evenly discharged to avoid the wind noise caused by the concentrated air bundle. At the same time, the exhaust filter screen 36 also filters the air bundle mixed with grass clippings to prevent grass clippings from being discharged from the exhaust port d with the air bundle and polluting the environment. The upper cover reinforcing plate 37 is riveted to the inner part of the grass collection box upper cover 28 and the mounting point of the upper cover mounting bracket 30. The upper cover reinforcing plate 37 is used to increase the strength of the grass collection box upper cover 28. The upper cover handle 39 is riveted to the lower rear part of the grass collection box upper cover 28 and is used to open and close the grass collection box upper cover 28. The bracket end rubber sleeves 38 are respectively installed on both ends of the U-shaped bracket 301 and the outer end of the middle bracket 305 of the upper cover mounting bracket 30. The bracket end rubber sleeves 38 are used to prevent scratches and provide protection.

[0043] like Figure 6 As shown, the upper cover mounting frame 30 mainly includes: a U-shaped bracket 301, a connecting seat 302, a welding seat 303, a mounting seat 304, and an intermediate bracket 305. The upper cover mounting frame 30 is based on the U-shaped bracket 301. The connecting seat 302 is horizontally welded to the middle of the U-shaped bracket 301, and the welding seat 303 is vertically welded to the middle of the connecting seat 302. The mounting seat 304 is welded to the welding seat 303, so that the space formed by the welding seat 303 and the mounting seat 304 is used to install the grass collection box upper cover assembly H. The intermediate bracket 305 is welded to the U-shaped bracket 301 and the welding seat 303 to strengthen the upper cover mounting frame 30 and facilitate the installation of the left / right grass collection bags G on the grass collection device.

[0044] like Figure 1 ,6 As shown in Figure 7, the grass collection box assembly G mainly includes: a grass collection bag mounting tray 40, a grass collection bag 41, a grass collection bag base 42, and a pull strap 43. The grass collection box assembly G is based on the grass collection bag mounting tray 40, with the grass collection bag 41 sewn onto the tray 40, the grass collection bag base 42 sewn onto the grass collection bag 41, and the pull strap 43 sewn onto the base 42. The grass collection bag mounting tray 40 is equipped with a handle e to facilitate the installation and removal of the grass collection bag 41 on the lawnmower.

[0045] like Figure 1 , 2 As shown in Figures 3 and 8, the lower grass collection pipe assembly C mainly includes: pipe connecting rubber strip 44, tape mounting seat 45, tape mounting screw 46, fixing torsion spring 47, lower pipe fixing rubber strip 48, and lower grass collection pipe 49. The lower grass collection pipe assembly C is based on the lower grass collection pipe 49. The pipe connecting strip 44 is installed on the lower grass collection pipe 49 through the tape mounting seat 45 and the tape mounting screw 46. The pipe connecting strip 44 is provided with a pipe fixing hole f for the installation connection between the lower grass collection pipe assembly C and the upper grass collection pipe assembly D. Two lower pipe fixing strips 48 are respectively installed on the right side and the upper left side of the lower grass collection pipe 49. The fixing torsion spring 47 is installed on the lower pipe fixing strip 48 and is used for the installation of the lower grass collection pipe assembly C on the grass suction tray assembly B. The lower grass collection pipe 49 is provided with a guide limiting boss g and a lower hanging hole h. The guide limiting boss g is used for guidance and limiting when the lower grass collection pipe assembly C is installed and connected to the upper grass collection pipe assembly D. The lower hanging hole h is used for limiting and fixing the lower grass collection pipe assembly C on the grass suction tray assembly B.

[0046] like Figure 1 , 5 As shown in Figures 8 and 9, the upper grass collection pipe assembly D mainly includes: an upper grass collection pipe 50 and a connecting rubber strip locking seat 51. The upper grass collection pipe assembly D is based on the upper grass collection pipe 50, and the connecting rubber strip locking seat 51 is screwed onto the upper grass collection pipe 50. The upper grass collection pipe 50 is provided with an arc-shaped flow guide structure j, a warning device mounting hole k, a pipe handle m, and a guide limiting groove n. The opening of the arc-shaped flow guide structure j forms an irregularly shaped grass discharge port, which is used for guiding and directing the collection of grass clippings. The warning device mounting hole k is used for installing the anti-accumulation warning device E. The pipe handle m is used for the installation and disassembly of the upper grass collection pipe assembly D. The guide limiting groove n is used for guiding and limiting the connection between the lower grass collection pipe assembly C and the upper grass collection pipe assembly D.

[0047] like Figure 1 , 10As shown, the anti-accumulation warning device E mainly includes: a wind roller 52, an upper housing 53, and a lower housing 54. The anti-accumulation warning device E is based on the upper housing 53. The wind roller 52 is installed in the lug of the upper housing 53. During mowing operations, when grass collection is normal, the wind roller 52 does not rotate. When the grass collection box assembly G is full, the wind roller 52 rotates rapidly. The lower housing 54 is installed on the lower surface of the upper housing 53. There is an airflow channel between the upper housing 53 and the lower housing 54 to drive the wind roller 52 to rotate. A whistle p is located in the middle of the bottom of the lower housing 54. During mowing operations, when grass collection is normal, the whistle p does not sound. When the grass collection box assembly G is full, the whistle p sounds as a reminder. The airflow through the whistle p drives the wind roller 52 to rotate through the space inside the housing.

[0048] The specific usage process of a safe electric lawn mower and grass collector is as follows:

[0049] Drive the lawnmower to the lawn that needs mowing, press the start / stop button to start the mowing motor 18. Driven by the mowing motor 18, the grass-collecting blade 14 rotates, and the lawnmower enters the mowing area. As the grass-collecting blade 14 rotates, the tail fin b on the grass-collecting blade 14 creates an upward suction. Due to the movement of the airflow, a negative pressure area is formed under the mowing platform shell 5. The cut grass clippings are collected under negative pressure. The grass clippings collected in the mowing platform shell 5 are transported by air pressure through the lower grass-collecting pipe 49 and the upper grass-collecting pipe 50 as the grass-collecting blade 14 rotates. The anti-accumulation indicator E installed on the upper grass-collecting pipe 50 physically identifies the grass-collecting status and provides a grass-collecting status indicator. If there is no alarm, the driver can proceed with normal mowing. The transported grass clippings reach the grass-collecting box cover 28 and are collected by the grass clippings set on the grass-collecting box cover 28. The diversion channel (c) diverts the grass clippings, which then fall into the left and right collection bags (41). The airflow carrying the grass clippings passes through the exhaust filter (36) and exits from the exhaust port (d), thus loading the grass clippings. If the driver hears an alarm, it indicates that the collection bags (41) are full. The airflow carrying the grass clippings passes through the whistle (p) on the anti-accumulation indicator (E) and exits through the wind roller (52). The whistle (p) sounds an alarm, and the wind roller (52) rotates rapidly. Pressing the start / stop button of the mowing device turns off the mowing motor (18), stopping the mowing operation. The mower moves to a wide, flat area and comes to a reliable stop. The top cover handle (39) is opened, and the top cover (28) of the collection box is opened. The collection bags (41) are removed from the top cover mounting bracket (30), and the grass clippings in the collection bags (41) are emptied and cleared to an appropriate area. After cleaning the collection bags (41), they are installed back onto the top cover mounting bracket (30), and the top cover (28) of the collection box is closed. Normal mowing operations continue.

[0050] In summary, this invention provides a safe electric lawn mower and grass collector with a compact structure, high integration and automation, energy efficiency, convenient operation, and reliable safety. The above are merely preferred embodiments of this invention and are not intended to limit or restrict the invention. Various modifications and variations can be made to this invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection declared by this invention.

Claims

1. A safe electric mower and collector comprising a mower body (A) for mowing and a collector arranged on the mower body (A), the collector comprising a suction disk assembly (B) for sucking grass clippings, a collector box assembly (G) for collecting the grass clippings, and a duct assembly for conveying the grass clippings, which communicates with the suction disk assembly (B) and the collector box assembly (G) respectively, characterized in that: The grass collecting box assembly (G) comprises two grass collecting bags (41), a grass collecting box upper cover assembly (H) and a mounting frame assembly (F), the grass collecting box upper cover assembly (H) is reversibly mounted on the mounting frame assembly (F) and is fixedly mounted on the rear of the mower main body (A) through the mounting frame assembly (F), the inner top surface of the grass collecting box upper cover (28) of the grass collecting box upper cover assembly (H) is provided with a flow separation groove (c) which is protruded upward and curved in the left-right direction, the protruded position of the flow separation groove (c) is close to the air inlet position of the pipeline assembly, the grass collecting box upper cover (28) is provided with an air outlet (d), one end of the front side of the grass collecting box upper cover (28) extends into the pipeline assembly, the end port of the pipeline assembly which extends into the grass collecting box upper cover (28) is provided with an arc-shaped flow guide structure (j), so that the air outlet direction of the pipeline assembly is curved towards the curved direction of the flow separation groove (c), the cover opening of the grass collecting box upper cover assembly (H) is provided with two grass collecting bags (41) arranged in the left-right direction.

2. The electrically driven mower with safety according to claim 1, characterized in that: The bottom of the grass collecting bag (41) is a grass collecting bag base (42).

3. The electrically operated mower with safety according to claim 2, wherein: The bottom surface of the grass collecting bag base (42) is provided with a pull belt (43).

4. The electrically operated mower with safety according to claim 2, wherein: The air outlet (d) is provided with an air outlet filter screen (36).

5. The electrically operated mower with safety according to claim 1, wherein: The grass collecting box upper cover assembly (H) comprises a grass collecting box upper cover (28) and an upper cover mounting frame (30), the upper cover mounting frame (30) is mounted on the mounting frame assembly (F), the grass collecting box upper cover (28) is reversibly mounted on the upper cover mounting frame (30), and the grass collecting bags (41) are detachably mounted on the upper cover mounting frame (30).

6. The electrically operated mower with safety according to claim 5, wherein: The upper part of the grass collecting bag (41) is provided with a grass collecting bag mounting tray (40) for being placed on the upper cover mounting frame (30).

7. The electrically operated mower with safety according to claim 1, wherein: The grass suction disc assembly (B) comprises a grass cutting table shell (5), a grass collecting cutter (14) and a grass cutting motor (18), the grass collecting cutter (14) is in a strip shape and is connected to the grass cutting motor (18) mounted on the grass cutting table shell (5) at the center, the two ends of the grass collecting cutter (14) are provided with tail wings (b) which are centrally symmetrical, the grass collecting cutter (14) is driven to rotate for grass cutting by the grass cutting motor (18), a negative pressure area is formed below the grass collecting cutter (14), and the grass cutting table shell (5) above the grass collecting cutter (14) is provided with a grass cutting disc grass discharging port (a) for being connected to the pipeline assembly.

8. The electrically operated mower with safety according to claim 7, wherein: The outer side of the grass cutting table shell (5) is provided with a castor (2) for supporting and limiting the lowest position.

9. The electrically operated mower with safety according to claim 1, wherein: The pipeline of the pipeline assembly is provided with a pile-up prevention prompting device (E), the pile-up prevention prompting device (E) comprises a wind roller (52), an upper shell (53), a lower shell (54) and a whistle (p), the upper shell (53) and the lower shell (54) are combined to form a shell which is sealingly fixed to the pipeline of the pipeline assembly, the wind roller (52) is vertically arranged on the top surface of the upper shell (53) and can rotate, the whistle (p) is mounted on the bottom surface of the lower shell (54), the air outlet of the whistle (p) is located in the pipeline of the pipeline assembly, and the air inlet of the whistle (p) corresponds to the wind roller (52).

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