Riding type mower

Abstract

The invention discloses a riding type mower, and relates to the technical field of environmental protection, the riding type mower comprises a riding vehicle and a spraying mechanism, the spraying mechanism comprises a water tank, a liquid outlet pipe and a spraying box, the water tank is fixedly mounted at the rear end of the riding vehicle through bolts, and one end, close to the water tank, of the liquid outlet pipe is fixedly mounted in the water tank through insertion; the spraying box is fixedly installed on the side, close to the water tank, of the discharging groove through bolts. By adjusting the height of the protective cover, a mowing knife in the protective cover can cut off grass with different lengths according to actual requirements, the general practicability of the device is improved, the mowing efficiency is improved, the height of the grass is controllable, the grass cut by the mowing knife is discharged from a discharging groove, and the practicability of the device is improved. And then power is provided for the spraying mechanism when the riding vehicle advances, water in the driving water tank forms water mist to be sprayed out after passing through the spraying tank, dust mist is effectively prevented from being formed when the crushed forage is discharged, and secondary pollution to the environment caused by raising of the crushed forage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, in particular to a riding lawn mower. Background Art

[0002] Handheld lawn mowers are small and easy to carry, but their mowing capacity, mowing efficiency, and battery life are limited, and they cannot meet the needs of large lawns. Therefore, riding lawn mowers are generally used at present. The Chinese patent application with application number 202211689923.3 discloses "a riding lawn mower, belonging to the field of lawn mowers, solves the problem that the power supply device is subject to large bumps, and the technical solution to this problem is mainly a riding lawn mower, including a frame, a cutting system, a walking system, a seat and a power supply device, the cutting system includes a mowing element and a first motor, the walking system includes a front walking wheel, a rear walking wheel, and a second motor, the power supply device includes a battery pack for providing an energy source for the first motor and the second motor, and at least one battery pack is provided in the power supply device, and the power supply device floats relative to the frame. The present invention is mainly used to reduce the bumps on the power supply device";

[0003] This technical solution only solves the problem that the power supply device may be subjected to large bumps, but the existing riding lawn mowers can usually only mow at a fixed height during operation, but different grasslands require different grass species heights, so the existing equipment often cannot adjust the mowing amount according to actual needs. In addition, when mowing, the discharged grass is often broken up by the blades and has a large kinetic energy when discharged, and the crushed grass is light in weight, so the discharged crushed grass is easy to form dust and mist, causing the environment to be polluted again during mowing. Summary of the invention

[0004] The object of the present invention is to provide a riding lawn mower to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a riding lawn mower, comprising a riding vehicle, a traveling mechanism, a lifting mechanism, a mowing mechanism and a spraying mechanism:

[0006] A travel mechanism, the travel mechanism comprising an output shaft, the output shaft being movably disposed at an inner front end of the riding vehicle;

[0007] A lifting mechanism, the lifting mechanism comprising a connecting seat, two connecting seats are movably arranged in the middle of the bottom end of the riding vehicle;

[0008] A mowing mechanism, the mowing mechanism comprising a protective cover and a discharge chute, the top end of the protective cover being fixedly mounted on the bottom end of the connecting seat by bolts, and the discharge chute being fixedly mounted on the left end of the protective cover by bolts;

[0009] The spray mechanism comprises a water tank, a liquid outlet pipe and a spray box, wherein the water tank is fixedly mounted on the rear end of the riding vehicle by bolts, the end of the liquid outlet pipe close to the water tank is fixedly mounted inside the water tank by insertion, the spray box is fixedly mounted on a side of a discharge trough close to the water tank by bolts, and the side of the liquid outlet pipe close to the discharge trough is fixedly mounted inside the spray box by insertion.

[0010] Preferably, the travel mechanism includes a fuel engine, a first drive belt, a rotating wheel and a driving wheel, the fuel engine is fixedly mounted at the internal front end of the riding vehicle by bolts, the top end of the output shaft is movably arranged inside the fuel engine, one end of the first drive belt close to the fuel engine is movably sleeved on the output shaft, the rotating wheel is movably mounted in the middle of the bottom end of the riding vehicle through a bearing, and the driving wheel is movably arranged at the internal rear end of the riding vehicle.

[0011] Preferably, the travel mechanism includes a driving shaft, a rear wheel, a front wheel and a second driving belt. The middle of the driving shaft is movably connected to the bottom end of the driving wheel by meshing. There are two rear wheels and they are fixed on both ends of the driving shaft by bolts respectively. The front wheel is movably arranged on the front side of the bottom end of the riding vehicle. The rear end of the first driving belt is movably connected to the rotating wheel, and the two ends of the second driving belt are movably connected to the rotating wheel and the driving wheel respectively.

[0012] Preferably, the lifting mechanism includes a limit frame, a connecting frame, a bidirectional threaded rod and a worm gear. There are two limit frames and they are fixedly installed on the left and right sides of the bottom end of the riding vehicle by bolts respectively. There are two connecting frames and they are fixedly installed in the middle of the two limit frames by bolts respectively. There are two bidirectional threaded rods and they are movably installed in the middle of the two limit frames by bearings respectively. The bidirectional threaded rod is movably installed in the middle of the connecting frame by insertion. There are two worm gears and they are fixedly sleeved in the middle of the two bidirectional threaded rods by bolts respectively.

[0013] Preferably, the lifting mechanism includes a worm, a turning handle, a slider and a connecting rod. The worm is movably installed at the bottom ends of the two connecting frames by insertion, the worm is movably installed at the bottom ends of the two worm wheels by meshing, the turning handle is fixedly installed at one end of the worm by bolts, there are two groups of sliders with two pieces in each group, and they are respectively movably sleeved on the two ends of two bidirectional threaded rods by threads, there are four groups of connecting rods and the top ends are movably installed in the middle of the two sides of the four sliders by rotating shafts, and the bottom ends of the four groups of connecting rods are respectively movably installed at the front and rear ends of the two connecting seats by rotating shafts.

[0014] Preferably, the mowing mechanism includes a mowing shaft, a mowing blade, a mowing pulley and a lifting frame. There are two mowing shafts and they are respectively inserted into the left and right ends of the protective cover through bearings. There are two mowing blades and the middle of the top is respectively fixedly installed on the ends of the two mowing shafts located in the protective cover by bolts. There are two mowing pulleys and they are respectively fixedly installed on the top ends of the two mowing shafts by bolts. The lifting frame is fixedly installed on the top end of the protective cover by bolts.

[0015] Preferably, the mowing mechanism includes a lifting pulley, a mowing transmission belt, a slot and a block, the lifting pulley is movably sleeved on the output shaft, the mowing transmission belt is movably sleeved on the outer sides of the lifting pulley and two mowing pulleys, the front end of the lifting frame is movably sleeved on the outside of the output shaft, the top end of the lifting pulley is movably mounted on the front end of the lifting frame through a bearing, the top ends of the two mowing pulleys are movably mounted on the left and right ends of the lifting frame through bearings, the slot is opened in the middle of the lifting pulley, the block is fixedly mounted on the side wall of the output shaft by welding, and the block is movably mounted in the slot by insertion.

[0016] Preferably, the spray mechanism includes a fixed frame, a gear shaft, a transmission gear, a spray transmission belt and a reciprocating gear. The fixed frame is fixedly installed on the bottom end of the water tank away from the liquid outlet pipe by bolts, the gear shaft is movably installed inside the fixed frame by insertion, the transmission gear is fixedly installed on the end of the gear shaft close to the water tank by bolts, the two ends of the spray transmission belt are respectively movably sleeved on the drive shaft and the end of the gear shaft away from the water tank, the reciprocating gear is movably installed on the lower middle part of the side of the water tank close to the spray transmission belt through a bearing, and the reciprocating gear and the transmission gear are movably connected by meshing.

[0017] Preferably, the spray mechanism includes a reciprocating rod, a reciprocating frame, a piston plate, a water pipe, an air pipe and a solenoid valve, the bottom end of the reciprocating rod is movably mounted on the side of the reciprocating gear away from the water tank and away from its center through a rotating shaft, the reciprocating frame is movably mounted inside the water tank through insertion, the top end of the reciprocating rod is movably mounted on the top end of the reciprocating frame through a rotating shaft, the piston plate is movably mounted inside the water tank through insertion, the top end of the piston plate is fixedly mounted on the bottom end of the reciprocating frame through bolts, the piston plate is movably sleeved outside one end of the liquid outlet pipe located in the water tank, the water pipe is movably mounted in the middle of the side of the water tank away from the fuel engine through insertion, the air pipe is movably mounted in the middle of the side of the water tank away from the fuel engine through insertion, and the solenoid valve is fixedly set on the top end of the air pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention adjusts the height of the protective cover so that the mowing knife inside the protective cover can cut grass of different lengths according to actual needs, thereby improving the general practicability of the equipment and the efficiency of mowing, and making the grass height controllable. The grass cut by the mowing knife is discharged from the discharge trough, and then the riding vehicle provides power to the spray mechanism when moving, driving the water in the water tank to pass through the spray box to form water mist and spray out, thereby effectively avoiding the formation of dust mist when the broken grass is discharged, and avoiding the secondary pollution of the environment caused by the broken grass being blown up. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a traveling mechanism provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a lifting mechanism provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a mowing mechanism provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the structure of a lawn mower provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a spray mechanism provided by an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the lifting pulley and the slot structure provided in an embodiment of the present invention.

[0027] In the figure: 1. riding vehicle; 2. traveling mechanism; 201. fuel engine; 202. output shaft; 203. first driving belt; 204. rotating wheel; 205. driving wheel; 206. driving shaft; 207. rear wheel for traveling; 208. front wheel for traveling; 209. second driving belt; 3. lifting mechanism; 301. limiting frame; 302. connecting frame; 303. two-way threaded rod; 304. worm gear; 305. worm; 306. turning handle; 307. sliding block; 308. connecting rod; 309. connecting seat; 4. mowing mechanism; 401. protective cover; 402. Mowing shaft; 403, mowing blade; 404, mowing pulley; 405, lifting frame; 406, lifting pulley; 407, mowing drive belt; 408, slot; 409, block; 410, discharge chute; 5, spray mechanism; 501, water tank; 502, fixed frame; 503, gear shaft; 504, transmission gear; 505, spray drive belt; 506, reciprocating gear; 507, reciprocating rod; 508, reciprocating frame; 509, piston plate; 510, liquid outlet pipe; 511, spray box; 512, water pipe; 513, air pipe; 514, solenoid valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 7 The present invention provides a technical solution: a riding lawn mower, comprising a riding vehicle 1, a traveling mechanism 2, a lifting mechanism 3, a mowing mechanism 4 and a spraying mechanism 5:

[0030] The traveling mechanism 2 includes an output shaft 202, and the output shaft 202 is movably arranged at the inner front end of the riding vehicle 1;

[0031] The lifting mechanism 3 includes a connecting seat 309. There are two connecting seats 309, both of which are movably arranged in the middle of the bottom end of the riding vehicle 1;

[0032] The mowing mechanism 4 includes a protective cover 401 and a discharge chute 410. The top of the protective cover 401 is fixedly mounted on the bottom of the connecting seat 309 by bolts, and the discharge chute 410 is fixedly mounted on the left end of the protective cover 401 by bolts;

[0033] The spray mechanism 5 includes a water tank 501, a liquid outlet pipe 510 and a spray box 511. The water tank 501 is fixedly installed on the rear end of the riding vehicle 1 by bolts, and the end of the liquid outlet pipe 510 close to the water tank 501 is fixedly installed inside the water tank 501 by insertion. The spray box 511 is fixedly installed on a side of the discharge trough 410 close to the water tank 501 by bolts, and the side of the liquid outlet pipe 510 close to the discharge trough 410 is fixedly installed inside the spray box 511 by insertion.

[0034] The traveling mechanism 2 includes a fuel engine 201, a first driving belt 203, a rotating wheel 204 and a driving wheel 205. The fuel engine 201 is fixedly mounted on the front end of the riding vehicle 1 by bolts, the top end of the output shaft 202 is movably arranged inside the fuel engine 201, one end of the first driving belt 203 close to the fuel engine 201 is movably sleeved on the output shaft 202, the rotating wheel 204 is movably mounted in the middle of the bottom end of the riding vehicle 1 through a bearing, and the driving wheel 205 is movably arranged at the rear end of the riding vehicle 1; the output shaft 202 is driven to rotate by the fuel engine 201, when the output shaft 202 rotates, the rotating wheel 204 is driven to rotate by the first driving belt 203, and when the rotating wheel 204 rotates, the driving wheel 205 is driven to rotate by the second driving belt 209;

[0035] The traveling mechanism 2 includes a driving shaft 206, a rear wheel 207, a front wheel 208, and a second driving belt 209. The middle of the driving shaft 206 is movably connected to the bottom of the driving wheel 205 by meshing. There are two rear wheels 207, which are respectively fixedly installed at the two ends of the driving shaft 206 by bolts. The front wheel 208 is movably arranged at the front side of the bottom end of the riding vehicle 1. The rear end of the first driving belt 203 is movably sleeved on the rotating wheel 204, and the two ends of the second driving belt 209 are movably sleeved on the rotating wheel 204 and the driving wheel 205 respectively. The driving shaft 206 is driven to rotate by the meshing connection between the driving wheel 205 and the driving shaft 206, and the rear wheel 207 is driven to rotate by the driving shaft 206, so that the riding vehicle 1 travels.

[0036] The lifting mechanism 3 includes a limit frame 301, a connecting frame 302, a bidirectional threaded rod 303 and a worm gear 304. There are two limit frames 301, which are respectively fixed on the left and right sides of the bottom end of the riding vehicle 1 by bolts. There are two connecting frames 302, which are respectively fixed in the middle of the two limit frames 301 by bolts. There are two bidirectional threaded rods 303, which are respectively movably installed in the middle of the two limit frames 301 by bearings. The bidirectional threaded rod 303 is movably installed in the middle of the connecting frame 302 by insertion. There are two worm gears 304, which are respectively fixed and sleeved in the middle of the two bidirectional threaded rods 303 by bolts. The worm 305 is driven to rotate by turning the turning handle 306. When the worm 305 rotates, the worm gear 304 is driven to rotate, and the two bidirectional threaded rods 303 are driven to rotate simultaneously by the worm gear 304.

[0037] The lifting mechanism 3 includes a worm 305, a turning handle 306, a slider 307 and a connecting rod 308. The worm 305 is movably installed at the bottom end of the two connecting frames 302 by insertion, the worm 305 is movably installed at the bottom end of the two worm wheels 304 by meshing, the turning handle 306 is fixedly installed at one end of the worm 305 by bolts, there are two groups of sliders 307, each group has two pieces, and they are respectively movably sleeved on the two ends of the two bidirectional threaded rods 303 by threads, there are four groups of connecting rods 308, and the top ends are movably installed at the middle of the two sides of the four sliders 307 by rotating shafts, and the bottom ends of the four groups of connecting rods 308 are respectively movably installed at the front and rear ends of the two connecting seats 309 by rotating shafts; the connecting seat 309 is lowered by the connecting rod 308, and when the turning handle 306 is rotated in the opposite direction, the connecting seat 309 rises, and by adjusting the height of the protective cover 401, it is convenient to cut grass of different lengths according to actual needs, thereby improving the general practicality of the equipment, improving the efficiency of mowing, and making the height of the grass controllable;

[0038] The mowing mechanism 4 includes a mowing shaft 402, a mowing blade 403, a mowing pulley 404 and a lifting frame 405. There are two mowing shafts 402, which are respectively inserted into the left and right ends of the protective cover 401 through bearings. There are two mowing blades 403, and the middle of the top is respectively fixed by bolts to one end of the two mowing shafts 402 located in the protective cover 401. There are two mowing pulleys 404, which are respectively fixed by bolts to the top of the two mowing shafts 402. The lifting frame 405 is fixed by bolts to the top of the protective cover 401. The mowing shaft 402 drives the mowing blade 403 to rotate in the protective cover 401, and the rotating mowing blade 403 is used to mow the grass, and the cut grass is discharged through the discharge trough 410 when the mowing blade 403 rotates at a high level.

[0039] The mowing mechanism 4 includes a lifting pulley 406, a mowing drive belt 407, a slot 408 and a block 409. The lifting pulley 406 is movably sleeved on the output shaft 202. The mowing drive belt 407 is movably sleeved on the outer sides of the lifting pulley 406 and the two mowing pulleys 404. The front end of the lifting frame 405 is movably sleeved on the outside of the output shaft 202. The top of the lifting pulley 406 is movably mounted on the front end of the lifting frame 405 through a bearing. The tops of the two mowing pulleys 404 are movably mounted on the left and right ends of the lifting frame 405 through bearings. The slot 408 is opened at the lifting pulley 406. In the middle, a clamping block 409 is fixedly installed on the side wall of the output shaft 202 by welding, and the clamping block 409 is movably installed in the clamping slot 408 by insertion; when the protective cover 401 is driven to rise and fall by the connecting seat 309, the lifting pulley 406 is driven to rise and fall outside the output shaft 202 by the lifting frame 405, and the clamping slot 408 on the lifting pulley 406 is always sleeved outside the clamping block 409, so when the riding vehicle 1 is moving, the output shaft 202 can drive the lifting pulley 406 to rotate through the clamping block 409, and when the lifting pulley 406 rotates, the two mowing pulleys 404 are driven to rotate through the mowing transmission belt 407;

[0040] The spray mechanism 5 includes a fixed frame 502, a gear shaft 503, a transmission gear 504, a spray transmission belt 505 and a reciprocating gear 506. The fixed frame 502 is fixedly installed at the bottom end of the water tank 501 away from the liquid outlet pipe 510 by bolts, the gear shaft 503 is movably installed inside the fixed frame 502 by insertion, the transmission gear 504 is fixedly installed at one end of the gear shaft 503 close to the water tank 501 by bolts, the two ends of the spray transmission belt 505 are movably sleeved on the drive shaft 206 and the end of the gear shaft 503 away from the water tank 501, respectively, the reciprocating gear 506 is movably installed at the middle and lower part of one side of the water tank 501 close to the spray transmission belt 505 by bearings, and the reciprocating gear 506 is movably connected with the transmission gear 504 by meshing; the gear shaft 503 is driven to rotate by the spray transmission belt 505, so that the transmission gear 504 rotates following the gear shaft 503, and the reciprocating gear 506 is driven to rotate by the transmission gear 504;

[0041] The spray mechanism 5 includes a reciprocating rod 507, a reciprocating frame 508, a piston plate 509, a water pipe 512, an air pipe 513 and a solenoid valve 514. The bottom end of the reciprocating rod 507 is movably mounted on the side of the reciprocating gear 506 away from the water tank 501 and away from its center through a rotating shaft. The reciprocating frame 508 is movably mounted inside the water tank 501 through insertion. The top of the reciprocating rod 507 is movably mounted on the top of the reciprocating frame 508 through a rotating shaft. The piston plate 509 is movably mounted inside the water tank 501 through insertion. The top of the piston plate 509 is fixedly mounted on the bottom end of the reciprocating frame 508 through bolts. The piston plate 509 is movably sleeved on the outside of one end of the liquid outlet pipe 510 located in the water tank 501. The water pipe 512 is movably mounted on the side of the water tank 501 away from the fuel through insertion. In the middle of one side of the oil engine 201, the air pipe 513 is installed in the middle of the side of the water tank 501 away from the oil engine 201 by insertion, and the solenoid valve 514 is fixedly arranged at the top of the air pipe 513; the reciprocating frame 508 is driven by the reciprocating rod 507 to reciprocate up and down in the water tank 501, so that the piston plate 509 follows the reciprocating frame 508 to reciprocate up and down. When the piston plate 509 moves downward, the internal space of the water tank 501 is continuously compressed, so that the internal pressure of the water tank 501 increases, so that the water in the water tank 501 is sprayed out after passing through the liquid outlet pipe 510 to the spray box 511. The water mist sprayed by the spray box 511 is used to reduce dust on the broken grass discharged from the discharge trough 410 to avoid the broken grass being blown up and causing secondary pollution to the environment.

[0042] Working principle: When the present invention is used, the fuel engine 201 is started, and the fuel engine 201 drives the output shaft 202 to rotate. When the output shaft 202 rotates, the first driving belt 203 drives the intermediate wheel 204 to rotate. When the intermediate wheel 204 rotates, the second driving belt 209 drives the driving wheel 205 to rotate. The driving wheel 205 is meshed with the driving shaft 206 to drive the driving shaft 206 to rotate. The driving shaft 206 drives the rear wheel 207 to rotate, so that the riding vehicle 1 moves.

[0043] Before riding the vehicle 1, the height of the protective cover 401 is first adjusted according to the actual cutting height, and the worm 305 is driven to rotate by turning the handlebar 306. When the worm 305 rotates, the worm wheel 304 is driven to rotate, and the two bidirectional threaded rods 303 are driven to rotate simultaneously through the worm wheel 304. At this time, the sliders 307 on the bidirectional threaded rods 303 move toward the connecting frame 302 at the same time. At this time, the connecting seat 309 is lowered through the connecting rod 308. When the handlebar 306 is turned in the opposite direction, the connecting seat 309 rises. By adjusting the height of the protective cover 401, it is convenient to cut grass of different lengths according to actual needs, thereby improving the universal applicability of the equipment, improving the efficiency of mowing, and making the height of the grass controllable;

[0044] When the protective cover 401 is lifted or lowered by the connecting seat 309, the lifting frame 405 drives the lifting pulley 406 to lift or lower outside the output shaft 202, and the card slot 408 on the lifting pulley 406 is always sleeved outside the card block 409. Therefore, when the riding vehicle 1 is moving, the output shaft 202 can drive the lifting pulley 406 to rotate through the card block 409. When the lifting pulley 406 rotates, the mowing drive belt 407 drives the two mowing pulleys 404 to rotate, so that the mowing shaft 402 rotates with the mowing pulley 404, and then the mowing blade 403 is driven to rotate in the protective cover 401 through the mowing shaft 402. The rotating mowing blade 403 is used to mow the grass, and the cut grass is discharged through the discharge trough 410 when the mowing blade 403 rotates at a high level.

[0045] When the riding vehicle 1 is moving, the driving shaft 206 drives the rear wheel 207 to rotate, and drives the gear shaft 503 to rotate through the spray transmission belt 505, so that the transmission gear 504 rotates following the gear shaft 503, and drives the reciprocating gear 506 to rotate through the transmission gear 504. When the reciprocating gear 506 rotates, the reciprocating frame 508 is driven to reciprocate up and down in the water tank 501 through the reciprocating rod 507, so that the piston plate 509 follows the reciprocating frame 508 to reciprocate up and down. When the piston plate 509 moves downward, the internal space of the water tank 501 is continuously compressed, so that the internal pressure of the water tank 501 increases, so that the water in the water tank 501 is sprayed out after passing through the liquid outlet pipe 510 to the spray box 511. The water mist sprayed by the spray box 511 is used to reduce dust on the broken grass discharged from the discharge trough 410 to prevent the broken grass from being blown up and causing secondary pollution to the environment.

[0046] Water is added to the water tank 501 through the water pipe 512, and a pressure sensor is added to the air pipe 513 to monitor the internal pressure of the water tank 501. The switch of the air pipe 513 can be controlled by the solenoid valve 514 to adjust the internal pressure of the water tank 501 so that the spray mechanism 5 maintains a good spray effect.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A riding lawn mower, comprising a riding vehicle (1), characterized in that: It also includes a traveling mechanism (2), a lifting mechanism (3), a mowing mechanism (4) and a spraying mechanism (5): A travel mechanism (2), the travel mechanism (2) comprising an output shaft (202), the output shaft (202) being movably arranged at the inner front end of the riding vehicle (1); A lifting mechanism (3), the lifting mechanism (3) comprising a connecting seat (309), two connecting seats (309) being movably arranged in the middle of the bottom end of the riding vehicle (1); A mowing mechanism (4), the mowing mechanism (4) comprising a protective cover (401) and a discharge chute (410), the top end of the protective cover (401) being fixedly mounted on the bottom end of the connecting seat (309), and the discharge chute (410) being fixedly mounted on the left end of the protective cover (401); A spray mechanism (5), the spray mechanism (5) comprising a water tank (501), a liquid outlet pipe (510) and a spray box (511), the water tank (501) being fixedly mounted at the rear end of the riding vehicle (1), the end of the liquid outlet pipe (510) close to the water tank (501) being fixedly mounted inside the water tank (501), the spray box (511) being fixedly mounted on a side of a discharge trough (410) close to the water tank (501), and the side of the liquid outlet pipe (510) close to the discharge trough (410) being fixedly mounted inside the spray box (511).

2. A riding lawn mower according to claim 1, characterized in that: The travel mechanism (2) comprises a fuel engine (201), a first driving belt (203), a rotating wheel (204) and a driving wheel (205); the fuel engine (201) is fixedly mounted at the front end of the riding vehicle (1) by means of bolts; the top end of the output shaft (202) is movably arranged inside the fuel engine (201); one end of the first driving belt (203) close to the fuel engine (201) is movably sleeved on the output shaft (202); the rotating wheel (204) is movably mounted at the middle of the bottom end of the riding vehicle (1) by means of a bearing; and the driving wheel (205) is movably arranged at the rear end of the riding vehicle (1).

3. A riding lawn mower according to claim 2, characterized in that: The travel mechanism (2) comprises a driving shaft (206), a rear travel wheel (207), a front travel wheel (208) and a second driving belt (209); the middle of the driving shaft (206) is movably connected to the bottom end of the driving wheel (205) by meshing; there are two rear travel wheels (207) which are respectively fixedly mounted on the two ends of the driving shaft (206) by bolts; the front travel wheel (208) is movably arranged on the front side of the bottom end of the riding vehicle (1); the rear end of the first driving belt (203) is movably sleeved on the rotating wheel (204); and the two ends of the second driving belt (209) are respectively movably sleeved on the rotating wheel (204) and the driving wheel (205).

4. A riding lawn mower according to claim 3, characterized in that: The lifting mechanism (3) comprises a limit frame (301), a connecting frame (302), a bidirectional threaded rod (303) and a worm gear (304); the limit frames (301) are two in total and are respectively fixedly mounted on the left and right sides of the bottom end of the riding vehicle (1) by means of bolts; the connecting frames (302) are two in total and are respectively fixedly mounted in the middle of the two limit frames (301) by means of bolts; the bidirectional threaded rods (303) are two in total and are respectively movably mounted in the middle of the two limit frames (301) by means of bearings; the bidirectional threaded rods (303) are movably mounted in the middle of the connecting frame (302) by means of insertion; and the worm gears (304) are two in total and are respectively fixedly sleeved in the middle of the two bidirectional threaded rods (303) by means of bolts.

5. A riding lawn mower according to claim 4, characterized in that: The lifting mechanism (3) comprises a worm (305), a turning handle (306), a slider (307) and a connecting rod (308). The worm (305) is movably installed at the bottom ends of the two connecting frames (302) by insertion. The worm (305) is movably installed at the bottom ends of the two worm wheels (304) by meshing. The turning handle (306) is fixedly installed at one end of the worm (305) by bolts. There are two groups of sliders (307) in total, and each group has two pieces. The sliders (307) are movably sleeved at the two ends of the two bidirectional threaded rods (303) by threads. There are four groups of connecting rods (308) in total, and the top ends are movably installed at the middle of the two sides of the four sliders (307) by rotating shafts. The bottom ends of the four groups of connecting rods (308) are movably installed at the front and rear ends of the two connecting seats (309) by rotating shafts.

6. A riding lawn mower according to claim 5, characterized in that: The mowing mechanism (4) comprises a mowing shaft (402), a mowing blade (403), a mowing pulley (404) and a lifting frame (405). The mowing shafts (402) are two in total and are respectively inserted into the left and right ends of the protective cover (401) through bearings. The mowing blades (403) are two in total and the middle of the top ends are respectively fixedly mounted on one end of the two mowing shafts (402) located in the protective cover (401) through bolts. The mowing pulleys (404) are two in total and are respectively fixedly mounted on the top ends of the two mowing shafts (402) through bolts. The lifting frame (405) is fixedly mounted on the top end of the protective cover (401) through bolts.

7. A riding lawn mower according to claim 6, characterized in that: The mowing mechanism (4) comprises a lifting pulley (406), a mowing drive belt (407), a slot (408) and a block (409); the lifting pulley (406) is movably sleeved on the output shaft (202); the mowing drive belt (407) is movably sleeved on the outside of the lifting pulley (406) and two mowing pulleys (404); the front end of the lifting frame (405) is movably sleeved on the outside of the output shaft (202); the top end of the lifting pulley (406) is movably mounted on the front end of the lifting frame (405) through a bearing; the top ends of the two mowing pulleys (404) are movably mounted on the left and right ends of the lifting frame (405) through bearings; the slot (408) is opened in the middle of the lifting pulley (406); the block (409) is fixedly mounted on the side wall of the output shaft (202) by welding; and the block (409) is movably mounted in the slot (408) by insertion.

8. A riding lawn mower according to claim 7, characterized in that: The spray mechanism (5) comprises a fixed frame (502), a gear shaft (503), a transmission gear (504), a spray transmission belt (505) and a reciprocating gear (506). The fixed frame (502) is fixedly mounted on the bottom end of the water tank (501) away from the liquid outlet pipe (510) by bolts. The gear shaft (503) is movably mounted inside the fixed frame (502) by insertion. The transmission gear (504) is fixedly mounted on the end of the gear shaft (503) close to the water tank (501) by bolts. The two ends of the spray transmission belt (505) are movably sleeved on the drive shaft (206) and the end of the gear shaft (503) away from the water tank (501). The reciprocating gear (506) is movably mounted on the lower middle part of the side of the water tank (501) close to the spray transmission belt (505) by a bearing. The reciprocating gear (506) is movably connected to the transmission gear (504) by meshing.

9. A riding lawn mower according to claim 8, characterized in that: The spray mechanism (5) comprises a reciprocating rod (507), a reciprocating frame (508), a piston plate (509), a water pipe (512), an air pipe (513) and a solenoid valve (514); the bottom end of the reciprocating rod (507) is movably mounted on a side of the reciprocating gear (506) away from the water tank (501) and away from its center via a rotating shaft; the reciprocating frame (508) is movably mounted inside the water tank (501) via an insertion shaft; the top end of the reciprocating rod (507) is movably mounted on the top end of the reciprocating frame (508) via a rotating shaft; the piston plate (509) is movably mounted via an insertion shaft Inside the water tank (501), the top end of the piston plate (509) is fixedly mounted on the bottom end of the reciprocating frame (508) by means of bolts; the piston plate (509) is movably sleeved outside one end of the liquid outlet pipe (510) located inside the water tank (501); the water pipe (512) is movably mounted in the middle of a side of the water tank (501) away from the fuel engine (201) by means of insertion; the air pipe (513) is movably mounted in the middle of a side of the water tank (501) away from the fuel engine (201) by means of insertion; and the solenoid valve (514) is fixedly arranged at the top end of the air pipe (513).

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