WO2018165778A1

WO2018165778A1 - Three-wheel lawn mower having single front wheel and dual rear wheels which use rod to synchronise parallel connection rods to adjust height

Info

Publication number: WO2018165778A1
Application number: PCT/CN2017/000229
Authority: WO
Inventors: 苏克; 叶晓波; H.P.安祺莉卡
Original assignee: 宁波大叶园林设备股份有限公司
Priority date: 2017-03-13
Filing date: 2017-03-13
Publication date: 2018-09-20

Abstract

A three-wheel lawn mower having a single front wheel (t1) and dual rear wheels (227) which use a same rod to synchronise parallel connection rods to adjust the height. A height adjustment long rod (224) is connected to a front wheel height adjuster and a rear wheel height adjuster. The front wheel height adjuster is mounted above the front wheel (t1), and includes a parallelogram height adjustment structure provided with the parallel connection rods. An upper horizontal edge and a lower horizontal edge of the parallelogram height adjustment structure are parallel and equal, and a front parallel connection rod and a rear parallel connection rod are movable and constantly parallel. Rotating an angle causes the vertical distance between the upper horizontal edge and the lower horizontal edge to change, thereby adjusting the height.

Description

Three-wheeled lawn mower with a single parallel wheel and a rear double wheel with a synchronous parallel link

Technical field

The present invention relates to a lawn mower for manipulating lawns in places such as courtyards, parks, and roads. Three wheels are used to eliminate one wheel of a conventional four-wheel mower, making turning and reversing more flexible. A three-wheeled lawn mower with a flat-bar rotation angle for pitching the front wheel and a bumper for the front of the lawn mower chassis and a belt provided in the middle of the lawn mower chassis The function of the wave disc brake and the series motor electric lawn mower with both the grass head and the cord reel are improved, and the height of the front wheel and the rear double wheel are adjusted by a parallel parallel link. Three-wheel lawn machine.

Background technique

Lawn mowers are widely used to cut grass in the manner chosen by people's preferences. Some operators who like to use and use the lawn mower, make a little greater strength on the upper armrest of the second half and have a feeling of relying and pressing down, which invisibly increases the possibility of the front wheel's lifting and hanging. The mower should also be designed to take care of the comfort and convenience of the user. The lawn mower using a gasoline engine has less frontal tilt because the engine is heavier. However, there are also undesirable phenomena such as the front bend, especially the front left front wheel. For electric lawn mowers, the front wheel tilting phenomenon of the electric lawn mower is more common because the motor is lighter than the engine, and the motor shaft is driven by a lawn cutter with a large turning diameter, and cannot be installed too far. . Furthermore, according to relevant standards such as GB4706.78-2005; IEC60335-2-77-2002; EN836-1997 and other standards, especially EN836/A3-2004/4.2.3.2.1~4.2.3.2.3.3, there are slopes 16.7 Specification requirements. Adding a heavy sand pot in the front of the machine, installing the chassis, adding three holes, but also adding sand, is more troublesome. The weight is heavy and the transportation cost is also high.

Another common lawn mower, as shown in Figure 10, shows the grass head explosion diagram. Without the knife, the string motor drives the grass head with nylon thread. When the lawnmower is installed and the nylon thread in the reel 25-3 is rotated, the grass can be hit. When the line is short, the operator presses the hole, and the aluminum head 25-3b of the reel hits the ground to compress the reel spring 25-1, and the reel 25-3 is rotated to pass the nylon thread 134 therein. Line eye insert 25-6, and put the line. The over-extended line is trimmed by the blade 127. When not in use, the blade sleeve 126 is placed on the blade 127 for protection. It has a good effect on grass and grass, and it is lighter and more energy-efficient than a knife. However, it is not necessary to install it on a conventional lawn mower with wheels. Can you save one wheel of a typical four-wheel mower, making turning and reversing more flexible?

The usual lawn mowers are widely used in engines and have a wide range of activities, but they consume fuel and pollute the environment. Some operators prefer electric lawn mowers, but due to power restrictions, the widespread adoption of such lawn mowers is also limited. A flexible three-wheeled lawn mower is required on a narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the same front wheel and rear double wheel.

Inventing innovative ideas, such as ghosts in the long-term, with Swiss high-tech SENI.ENGI. Life experience and international collaboration, can be said to have a good fortune, so the present invention has a front single wheel and a rear double wheel with a parallel parallel The three-wheeled lawn mower with the height of the pole was born, which solved the world problem of the three-wheeled lawn mower without the front single wheel and the rear double wheel with one synchronous parallel link. If you imagine a device, such as a center pull wire to pull the lever, if you can make the reel aluminum head release, you can use the lightweight grass head on the lawn mower to save power; The counterweight does not need a sand pot, nor does it use a sink that has been improved. On the lawn mower, it is better to set up a battery in the lawn mower. It is known that the occasional failure of the winder is a world problem; Strengthen the grass protection and safety, as well as fuel economy and environmental protection; the reliability of the original brake is not durable; the pulley is still slipping due to the brake motor; some centrifugal blocks are slippery after a long time of polishing; Centrifugal resistance If the effect is to be changed to the axial direction, there will be no centrifugal obstruction and the brake will be fast; the original brake will suddenly suffocate and die, but it will be countered by its energy accumulation. The wave disc brakes intermittently pulsate and dissipate energy, which is good for braking, and prolongs the life of the friction block. Because the friction block is red when it is pressed and held, the friction block is not easy to be red when the tension is loose. The grass sometimes contains steel hard objects, and occasionally the knife or the tipping mower; if the current side collides with the outer rubber skin of the live bracket and the slide rod of the live bracket is retracted, the limit switch is triggered to facilitate collision prevention. Anti-collision security and ensuring braking, mowing and grassing are optional, and there are wires and large areas. These are easy to do and have always been the problem of electric lawn mowers.

Why use a reel? Because of the long wires scattered on the ground, when the electric lawn mower reciprocates the grass, sometimes it is accidentally stepped on by the foot, or pressed by the wheel, which affects safety; sometimes it is caused by knotting or tangling the wire. The line is not long enough to suspend mowing, or it can be managed by human hands, which increases safety risks. Why install the reel on the electric mower? Anyone who has used electric lawn mowers knows that when mowing grass often leaks grass, it has to be cut, especially when the environment is complicated, such as when trees are mixed in the lawn, it takes several steps and several repetitions. Grass; if the reel is placed far away, the wire near the mower can not be synchronized in and out in time, or it will soften off the ground, there is a danger of being stepped on or wheeled, or not timely In and out of the line. The reel is mounted on the electric lawn mower, not only to replace the counterweight, but also to advance and retreat. The reel is installed in the front and middle of the mower, and the outlets are all from the ground. High, so it is not easy to be stepped on or pressed.

Summary of the invention

The invention relates to a lawn mower for manipulating lawns in places such as courtyards, parks and roads, and a novel offset series motor electric lawn mower, which has both a grass head and a cord reel. The mower is mainly equipped with three major assemblies on the ordinary lawn mower, that is, a battery bracket assembly, a cutting device assembly for pulling the rotating rod and the grass head, and a reeling device. The bracket is provided with a movable storage bracket for placing the battery in front of the lawn mower; the cutting device is arranged in the middle of the lawn mower, and the cutting device can be used in two types, one is cutting The lawn mower in the center of the grass machine has a plastic knife holder with a fan, and the other is to transplant the nylon thread of the reel in the upper wheel of the original lawn mower to the lawn mower, which is not installed in the center of the lawn mower. Instead, the biased series motor is dragged; because the offset series motor gives up the central axis position, it is possible to make the central shaft hollow, so that the rotating rod can be pulled by the center wire of the present invention to make the reel Putting the line, thus breaking the grass head nylon wire cutting device can not be used for mowing History; and because of the use of a winding device with a variety of damping mechanisms, a variety of complementary more reliable, that is, by the centrifugal slow retraction device, side piston damping device, position lock and ball position lock, reverse resistance mechanism, row The winding device complemented by the tube angle groove damping mechanism greatly increases the mowing range of the conventional electric lawn mower. Perhaps it can be said that a mower with both grass and a reel is created, such a new technical field; the purpose is to expand the mowing range by adding batteries or lengthening wires, and strengthen the weight to press the grass. The safety and safety of the slope and the slope are 16.7 degrees, and the fuel-saving and energy-saving and environmentally friendly RoHS emission are not required without the internal combustion engine. The main improvement is that the front part of the lawn mower is provided with a movable extraction bracket for placing the battery; the cutting device provided in the middle of the lawn mower is driven by a series excitation motor which is not mounted at the center; Two kinds are available, one is a knife with a fan plastic knife seat, and the other is to transplant the nylon thread of the reel in the upper wheel of the original lawnmower to the lawn mower; the biased series motor is given out. The central shaft position can be used to pull the rotating rod with the center wire of the invention, so that the aluminum head of the reel can be put on the line, thereby breaking the history that the nylon thread cutting device can not be used for the lawn mower; Winding device for various damping mechanisms, namely centrifugal slow retracting device, side piston damping device, position lock, reverse resistance machine The structure, the flap spring damper mechanism, and the winding device complementary to the angle damper mechanism of the pipe arranging device greatly increase the mowing range of the electric electric lawn mower with ordinary electric wires. Perhaps it can be said that a mower that has both a grass head and a reel is created, such a new technical field. Just as the spring silkworm is dead, the improvement is perfect; the anti-collision security is further improved and the brakes are ensured; the outer rubber collision of the live bracket is used to trigger the limit switch to prevent the slide rod from retracting. The function wave disk brake is an uneven disk that undulates according to the waveform, in order to facilitate the relaxation of a brake. The parameters are computer molding, which can be produced in batches. The brakes are also equipped with axial functions. The shaft of the raised friction block; and the pulley with internal internal teeth; and the radial centrifugal block with multiple arc teeth, the machine benefits to enhance the anti-collision insurance and braking effect, mowing the grass Optional, the active area is too large for electric lawn mowers.

Because the invention is based on several improved series motor electric lawn mowers, the anti-collision brake is further used. Therefore, for the sake of clarity, the electric lawn mower with the grass head and the reel is described first. The technical solution adopted by the electric lawn mower to solve its technical problems is:

The utility model relates to a series motor electric lawn mower, which is a lawn mower which has both a grass head and a cord reel. The main purpose is to add three major assemblies on a common lawn mower, that is, a battery bracket assembly is provided. a cutting device assembly with a pulling rod and a grass cutting head disposed in the middle of the lawn mower driven by the series motor, and a reel assembly; the bracket is a lawn mower The front part is provided with a movable extraction bracket for placing the battery; the cutting device has two types, one is a lawn cutter on the center of the lawn mower, and a knife seat with a plastic fan is provided for guiding and insulating; The other is to transplant the nylon thread of the reel in the reel of the original lawnmower to the lawn mower. Because the offset series motor gives up the position of the central axis, it is possible to make the central shaft hollow. The center pull wire of the invention pulls the rotating rod to make the reeling line, thereby breaking the history that the nylon thread cutting device can not be used for the lawn mower; and then setting the random coil in the lawn mower to form a kind of There is a lawn mower with a grass cutter and a reel, which is called a series motor according to the usual method. The mobile lawn mower; the battery bracket assembly is fixed to the fixed seat (90c) of the bracket seat of the lawn mower chassis, and the pullable rod (90a) and the limit position (90b) are pulled out. a living bracket (90), and a battery with a charger and an inverter, the slide bar (90a) of the live bracket (90) is fitted in the fixed seat (90c) of the bracket seat After being pulled out and positioned by the limit (90b), the battery can be placed thereon; the cutting device assembly provided in the middle of the series motor electric lawn mower is not included in the The center is driven by the offset series motor; there are two kinds of cutting devices, one is a knife with a fan plastic knife seat, and the other is a winding inside the wheel of the original grass cutter. The nylon thread of the reel is used as a knife on the lawn mower; the fan plastic seat (85) is provided with a spline groove (85a) which cooperates with the spline (82a) of the large pulley (82); The blade holder 85 is provided with a plurality of fans (85d), and is provided with a plurality of small through holes (85c), preferably hexagonal holes; and the fan is provided with a cutting edge (85b); Then, the knife seat should be made of non-conductive material For example, plastic, especially nylon fiber; the middle of the series motor electric lawn mower is provided with a cutting device assembly for the grass head and the center wire pulling rod, and the inner frame (76), the series motor (77), motor pulley (84), belt (83), large pulley (82), pull wire (81), pull rod (78), thrust bearing (79), labyrinth pull frame (80), and The grass head is composed of the grass head; the grass head is also called the rope rope grass assembly with the base of the wire box, and the grass head shell (24-3), the reel spring (25-1) , reel (25-3), nylon thread (134), retaining coil (123), eyelet insert (25-6), wire box upper cover (25-7); said blade (127 Provided on the circumference of the lawn mower cutting disc, the blade sleeve (126) is placed on the blade (127) when not in use; the nylon thread (134) is characterized by a notch (34a) in its cross section, At least one, or more, for example three; the notches are spiral along the nylon line and are equally distributed circumferentially; the notches are triangular; the inner frame (76), mounted on the lawn mower chassis Above the cutting disc, on the shaft of the offset series motor (77), a motor pulley (84) is provided, and the belt pulley (83) drives the large pulley (82) of the center line at the center of the cutting disc of the chassis; The large pulley (82) drives the grass head; the large pulley (82) and the grass head shell (24-3), the eyelet insert (25-6), and the wire box upper cover ( 25-7) sequentially connected, by a reel spring (25-1) in the grass head shell (24-3), press-fitted with a reel (25-3), the reel (25- 3) The top is provided with a nylon thread (134) and a retaining coil 123; the pulling rod 78 is connected with the reel (25-3), or fixedly connected, or with a shaft ring, or with a reverse a threaded fastener, or connected by a thrust bearing; the other end of the pulling rod (78) is connected to a labyrinth pull frame (80) through a thrust bearing (79), the pull frame (80) The end of the wire rope with the pull wire (81) is attached, and the other distal end of the wire is connected to the pay-off lever (81b) of the lawn mower; The frame (80) is in the shape of a square, and has a hole (80c) for pulling the rotating rod and a long hole (80b) at the side thereof. a central hole (80d) is arranged on the upper surface, in particular, a labyrinth (80a) is arranged thereon, and has a plurality of curved roads connecting the long hole and the central hole, so that the pulling wire is put into the pulling frame (80) to enter the center hole; The circuit diagram of the series motor electric lawn mower is mainly composed of insurance RC, switch K, inductor L3, inductor L4, capacitor C, and series motor M with winding L1 and winding L2, and start button AQ and handle. (75), and diode Di, resistor R1, R2, LED tube, winder and plug and socket; characterized in that the head of the handle 75 is provided with a hook; the start button AQ is set There is a long sheet QA2, and a long piece is connected to the pressing block QA1, and a limiting piece QA3 is further provided; when the starting button AQ is pressed and the handle 75 is pulled, the head of the handle 75 is provided with a hook Pressing the pressing block QA1 of the starting button AQ, and pressing the pressing block QA1 of the starting button AQ against the switch K, can be started; when it is to be closed, each piece can be elastically reset as long as the handle 75 is pulled; The winder of the lawn mower is a winder with a variety of damping mechanisms, namely a centrifugal slow retracting device and a side piston damping device. Lock and ball position lock, reverse resistance mechanism, the winder complemented by the angle groove damping mechanism of the pipe damper, more reliable due to multiple complements; the winder can be used in the front or middle of the mower Several or several kinds of damper mechanism winders, because there are spaces around the fixed large gear (4), there are spaces to place multiple pinion gears (9) to connect multiple damping mechanisms and position locks; or can be used The battery; the bracket (19) that connects the outer casing of the winder through the long pin (18) and can be slightly rotated within 180 degrees can be assembled on the lawn mower; or at the front of the lawn mower Or the vertical axis is assembled in the middle; the vertical shaft can be provided with a double slip ring with a carbon brush joint; when the operator pushes the mower, the winder is out; when the pull is pulled, the line is locked; when pushing back, The reel makes the wire automatically rewind; if it is too fast, the various functions of each damping device will strengthen the slow retraction damping to make it move forward and backward.

The electric lawn mower is a commonly used garden power tool. It is driven by a motor and drives the spindle with the blade to work through a transmission structure such as a belt or a gear. If the machine needs to stop during the operation, the power supply is cut off first, but the blade will still run at high speed for a period of time under inertia. There is a safety hazard. For this reason, a brake device is needed to control its movement to avoid personal injury.

After the anti-collision brake is improved, the invention provides a series motor electric lawn mower with a chassis anti-collision belt function wave plate brake, and the technical solution adopted to solve the technical problem is:

A series motor electric lawn mower having a chassis anti-collision belt function wave disc brake, which comprises an anti-collision fuse provided at the front of the lawn mower chassis, and a brake provided in the middle of the lawn mower chassis Series motor electric lawn mower; lawn mower, with lawn mowers with both grass and reel, is equipped with three major assemblies on the ordinary lawn mower, with charging and inverter The pull-out bracket assembly of the battery is provided with a cutting device assembly with a pulling rod and a grass head which is dragged by the series motor and arranged in the middle of the lawn mower, and a reel assembly; a cutting device The fan plastic seat with both the noise reduction porous and the cutting edge is also transplanted to the lawn mower of the reel in the original lawn mower; the biased series motor is given out. The position of the mandrel, the rod is pulled by the center wire to make the reel; the nylon wire is also improved to the noise reduction line with the triangular spiral groove; the reel assembly is equipped with various kinds on the mower. The damper mechanism is a centrifugal slow retracting device, a side piston damping device, a position lock and a ball position lock, a reverse resistance mechanism, a flap spring damper mechanism, and a tube damper mechanism complementary to the angle damper mechanism; The grass machine circuit is mainly operated by the start button AQ and the handle (75) and is provided with insurance; the bracket assembly is provided by a fixed slide seat (90c) mounted on the bracket seat of the lawn mower chassis, and The pull-out is composed of a slide bar (90a) and a limit bracket (90b), and the slide bar (90a) of the live bracket (90) is set on the fixed seat of the bracket seat. (90c), after being pulled out and positioned by the limit (90b), the battery with the charger and the inverter is placed thereon; the middle of the series motor electric lawn mower is provided The cutting device assembly is driven by a series motor that is not mounted at the center but is biased; there are two types of cutting devices, one is a fan plastic holder. a knife, the other is a grass head; the fan plastic seat (85) is provided with a spline groove (85a) which cooperates with a spline (82a) of the large pulley (82); The blade holder 85 is provided with a plurality of fans (85d), and is provided with a plurality of small through holes (85c) which are hexagonal holes; and the fan is provided with a cutting edge (85b); The knife seat is made of a non-conductive material, which is a plastic, which is a nylon fiber; the middle of the series motor electric lawn mower is provided with a cutting device assembly for the grass head and the center wire pulling the rotating rod, and the inner frame (76), series motor (77), motor pulley (84), belt (83), large pulley (82), pull wire (81), pull rod (78), thrust bearing (79), pull with labyrinth The rotating frame (80) and the grass head are composed; and the grass head, which is also called the wire rope grassing assembly with the wire box base, is wound by the grass head shell (24-3). The wheel spring (25-1), the reel (25-3), the nylon thread (134), the protective coil (123), the eyelet insert (25-6), and the upper cover of the cable box (25-7) The blade (127) is disposed on the circumference of the lawn mower cutting tray, and the blade sleeve (126) is placed on the blade (127) when not in use; The inner frame (76) is mounted above the cutting disk of the lawn mower chassis, and is provided with a motor pulley (84) on the shaft of the offset series motor (77) and driven by the belt (83). a large pulley (82) having a centerline at the center of the cutting disc of the chassis; the large pulley (82) driving the grass head; the large pulley (82) and the grass head shell (24-3), The eyelet inserts (25-6), the upper cover of the wire box (25-7) are connected in sequence, and the reel is loaded by the reel spring (25-1) in the grass head shell (24-3). (25-3), the reel (25-3) is provided with a nylon thread (134), and a retaining coil 123; the pulling lever 78 and the reel (25-3) Connected, or fixedly connected, or with a shaft retaining ring, or with a reverse threaded buckle, or with a thrust bearing; the other end of the pull rod (78) is pulled through the thrust bearing (79) and with a labyrinth The turret (80) is connected, the pull frame (80) is provided with one end of the wire rope of the pull wire (81), and the other distal end of the wire is connected with the paying handle of the lawn mower ( 81b) connected; the labyrinth pull frame (80) is a square shape, and a hole for pulling the rotating rod (80c) is arranged below the frame The side surface is provided with a long hole (80b), and a central hole (80d) is arranged on the upper surface thereof, and a labyrinth (80a) is arranged on the upper surface thereof, and has a plurality of curved roads connecting the long hole and the center hole, so that the pulling wire is put in and pulled. The frame (80) enters the center hole; the nylon wire (134) has a notch (34a) in cross section, at least one; the notch is spiral along the nylon line, and is equally divided along the circumference Uniform; and the notch is triangular; the circuit of the series motor electric lawn mower is mainly composed of insurance RC, switch K, inductor L3, inductor L4, capacitor C, and winding L1 and winding L2 series motor M, and start button AQ and handle (75), and diode Di, resistor R1, R2, LED LED, winder and plug and socket; the handle 75 has a head The starting button AQ is provided with a long sheet QA2, and is connected to the pressing block QA1 by a long sheet, and is further provided with a limiting piece QA3; when the starting button AQ is pressed and the handle 75 is pulled, The head of the handle 75 is provided with a hook head pressing the pressing block QA1 of the starting button AQ, and the pressing block QA1 of the starting button AQ is pressed against the switch K to start; , As long as the handle 75 is pulled, each elastic return member each can; the odds chassis collision safety belt brake function of the series motor The electric lawn mower is characterized in that it comprises an anti-collision fuse provided at the front of the lawn mower chassis, which is arranged on the living bracket (90) of the bracket assembly, and is installed on the lawn mower chassis. The fixed seat (90c) of the bracket seat and the pull-out movable bracket (90) provided with a slide bar (90a) and a limit position (90b), the slide bar of the live bracket (90) 90a) is disposed in the fixed seat (90c) of the bracket seat, and is positioned by the limit position (90b) when being pulled out, characterized in that the live bracket (90) is an outer rubber sheet, and the The limit position (90b) is provided with a limit switch for triggering the limit when the current side collides with the outer rubber skin of the live support (90) to retract the slide bar (90a) of the live support (90). Position (90b) is provided with a limit switch for securing the bumper; said brake in the middle of the mower chassis of the series motor electric lawn mower provided in the middle of the lawn mower chassis The inner frame (76) is mounted above the cutting disk of the lawn mower chassis, and the inner frame is provided with an offset series motor (77), and the biased series motor (77) On the shaft, there is a motor pulley (84), and The belt (83) is driven by the belt (83), and the pulley (204) of the center line is at the center of the cutting disc of the chassis; and the output shaft (203) of the concentric hub is connected by a belt, and the pulley (204) is screwed with a screw (216). Fixing a function disk brake pad (206) for braking; fixing a brake fixing plate (207) to the inner frame (76), fixing each other with a hexagonal screw (218) and a hex nut (219); The fixed plate (207) is provided with a movable brake lever (208) which is connected by a rivet (215) for flexible rotation; the brake lever (208) is provided with a friction plate (209) and a solid rivet (223) Connecting, by means of a brake tension spring (210) acting on the brake fixing plate (207) and the brake lever (208), the friction plate (209) and the function disk of the pulley (204) for braking The brake pad (206) is brake-tensioned; the brake lever (208) is connected to the joystick by a cable (211) for braking the clutch;

A series of motor-driven lawn mowers with a chassis anti-collision belt function and a wave disc brake after improved anti-collision and braking, characterized in that: the function wave disc brake pad (206) is undulating according to the waveform. An uneven disk, in order to facilitate the effect of a relaxation brake, characterized by its undulating waveform is according to the sine wave equation: size SDi = C * SIN (TRAJPAR * 360 * N); where size SDi is the size of the digital sequence No., SIN is a sine function, TRAJPAR is a trajectory function; parameter C is a real number, and is assigned between 0.01 and 1.2 according to the specific working conditions; C is also called wave height; parameter N is an integer, and is between 2-200 according to specific working conditions. The value is selected, N is also called the wave number; the size SDi is the default size of the computer model.

The series-excited electric lawn mower with the chassis anti-collision belt function wave plate brake described in the anti-collision and braking is modified and perfected again, characterized in that: the waveform is high and low undulating for a single relaxation brake. The uneven function disk brake pad (206) is characterized by its high and low undulating waveforms. For various models, computer simulation and various experiments are required. The wave height C and the wave number N are matched; the wave height C is 0.1-0.9. The wave number N is taken as 3-99.

The series-excited electric lawn mower with the chassis anti-collision belt function wave plate brake described in the anti-collision and braking is modified and perfected again, characterized in that: the waveform is high and low undulating for a single relaxation brake. The uneven function disk brake pad (206) is characterized in that its high and low undulating waveform is a trigonometric function, its trigonometric function or cosine function, or a cotangent function, or a tangent function.

The series-excited electric lawn mower with the chassis anti-collision belt function wave plate brake described in the anti-collision and braking is modified and perfected again, characterized in that: the waveform is high and low undulating for a single relaxation brake. The uneven function disk brake pad is an inverse trigonometric function whose trigonometric function is either an inverse sine function or an inverse cosine function, or an inverse tangent function, or an inverse cotangent function.

The series motor electric lawn mower with the chassis anti-collision belt function wave plate brake after the anti-collision brake is improved, characterized in that: the function wave disc brake piece (206) is a function wave waveform Uneven platters of high and low undulations The relaxation brake effect is characterized by its high and low undulating waveform is a function, its function is a power function, or an exponential function, or a logarithmic function.

The series motor electric lawn mower with the chassis anti-collision belt function wave plate brake after the anti-collision brake is improved, characterized in that: the function wave disc brake piece (206) is high and low undulating unevenness The platter, in order to facilitate the effect of a relaxation brake, characterized by its uneven undulating disc or a plurality of convex or concave, or rough surface, or convex and concave grid, or a plurality of convex and concave and function wave waveform Combination crossover.

The invention relates to a series motor electric lawn mower with a chassis anti-collision belt function wave disk brake after the anti-collision brake, characterized in that: the brake of the electric lawn mower is provided with an axial pressing A shaft (204b) of a friction block (204c) that is progressively raised, said friction block (204c) being characterized by a progressively elevated friction block in the axial direction, which is either a parabolic gradual A raised friction block, or an involute friction block that is gradually raised, or a plurality of convex or concave, or rough surfaces, or a convex-concave mesh, or a combination of a plurality of convex and concave and functional wave waveforms.

The series motor electric lawn mower with the chassis anti-collision belt function wave plate brake after the anti-collision brake is improved, characterized in that: the brake of the electric lawn mower is provided with multiple internal teeth (204t The pulley (204) is characterized in that at least one of the interiors of the pulley is provided with a plurality of internal teeth (204t).

The series motor electric lawn mower with the chassis anti-collision belt function wave plate brake after the anti-collision brake is improved, characterized in that: the brake of the electric lawn mower is provided with multiple arc teeth (209t) The radial centrifugal block (208t) is characterized in that at least one of the radial centrifugal blocks (208t) is provided with a plurality of arc teeth (209t).

The equations and modeling methods of the technical solution adopted by the present invention to solve the technical problems thereof are:

Use PRO/ENGINEER WILDFIRE drawing software, create a new working directory, create new parts, and sketch 2 concentric circles.

Open the Var Sect Sweep command and select the above 2 circles as the scan track and reference track.

Draw a line parallel to the 2 circular plane, the length L = (D-d) / 2, and the corresponding edge of the circle.

Establish the parameter (PARAMETER) 1: C real number, which can be assigned between 0.01-1 according to the specific working conditions, such as 0.3; C is also called wave height.

Establish the parameter (PARAMETER) 2: N integer (integer), which can be selected between 2-100 according to the specific working conditions, for example 13; N is also called wave number.

Establishing a relationship (RELATION), that is, the sine wave equation of the present invention is:

SDi=C*SIN(TRAJPAR*360*N)

In the above formula, i is the size number serial number; SIN=SINE, sine function; TRAJPAR, trajectory function.

Then, using instructions such as rotation, merging, and materialization, it is modeled as a function wave disk.

Then use the equation to enter the CNC machining center, use CIMATRO or MASTCAM steel mold, or use milling machine, planer and EDM. When using EDM, input the CNC machining center with the equation described above, then the tungsten-copper electrode must be fabricated first.

There are various manufacturing methods; or a die-casting machine with a cold-pressing chamber is used to mass-produce a function wave plate by using a die-casting aluminum alloy. The base material is aluminum alloy ZL109, or AC8A, and a friction-resistant material is added. Or by the method of manufacturing die-cast zinc-aluminum alloy, mass-produced by a die-casting machine with a hot-pressing chamber, and the base material is chaotically added with a friction-resistant material. Alternatively, the mold can be formed by using the formed wave plate to form a mold, and a plurality of wax cores are first formed, and then the function wave plate casting is mass-cast by a wax mold casting method.

It should be particularly noted that the waveform of the present invention may also use other waveforms, such as other various mathematical functions. Or other waveforms. The three-wheel mower having the flat head rotation angle of the grass head to increase the front single wheel is characterized in that it comprises a front single wheel (t1), a flat rod (t2), a card wheel (t3). Front wheel horizontal axis (t4), twist handle (t5), wheel frame (t7), wheel carrier height adjustment groove (t8), chassis frame (t9), front wheel vertical axis (t10), front wheel branch pipe (t11), a front wheel bracket (t12) and a chassis grass rack (t13), the chassis frame (t9) and the chassis grass feeder (t13) are provided at a front portion of the lawn mower chassis, The front frame branch (t11) and the front portion of the chassis trimming frame (t13) are symmetrically provided with the front wheel branch pipe (t11), and the two front wheel branch pipes (t11) The middle wheel bracket is provided with the front wheel bracket (t12), and the front wheel bracket (t12) is movably provided with the front wheel vertical shaft (t10), and the front wheel vertical shaft (t10) and The wheel carriers (t7) are connected; the wheel carrier (t7) is symmetrically disposed on the left and right sides of the wheel frame (t7), and the wheel carrier height adjustment grooves (t8) are arranged at the two wheel carriers. The front wheel transverse axis (t4) is inserted into the groove (t8); the front single wheel (t1) capable of rolling is provided on the front wheel transverse axis (t4); The flat-bar rotation angle gear is used to adjust the front wheel single-wheel mower to be characterized in that a plurality of rotation angle gears (t7j) are provided on the wheel carrier (t7), and are hung at the rotation angle. On the center of the rotation of the gear, the flat bar (t2) containing the handle (t2k) is mounted, and the flat bar (t2) is provided with a flange (t2j) for operating the handle (t2k) The flat bar (t2) can be matched with an optional gear (t7j) of the plurality of rotational angle gears (t7j) to enable the rolling of the front wheel transverse axis (t4) The front single wheel (t1) is changed in height relative to the height of the chassis of the lawn mower from the ground so that the mowing height is variable.

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at a center angle of 5-20 degrees between each gear (t7j).

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at an 8 degree central angle between each gear (t7j).

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at a 10 degree central angle between each gear (t7j).

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at a center angle of 12 degrees between each gear (t7j).

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at a certain central angle between each of the gears (t7j) and each of the rotation angle gears (t7j) is a pit.

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the plurality of rotation angle gears (t7j) are as described The center of rotation of the rotation angle gear is arranged at a certain central angle between each of the gears (t7j) and each of the rotation angle gears (t7j) is a rectangular pit.

Continuously improving and improving the three-wheeled mower with a flat head rotating angle gear for lifting the front single wheel, The feature is that the plurality of rotation angle gears (t7j) are arranged at a certain central angle between each of the gears (t7j) at a center of rotation of the rotation angle of the rotation angle and each of the rotation angles The gear (t7j) is a pit 10 mm long and 5 mm wide.

Continuously improving and improving the three-wheeled lawn mower with a flat head rotation angle gear for lifting the front wheel, wherein the flat rod with the handle (t2k) is mounted a flange (t2j) provided on (t2) is a flange punched out on the flat steel of the flat bar; the said flat bar (t2) provided with a handle (t2k) is provided The flange (t2j) is a flange punched out on the spring flat steel 65Mn of the flat bar.

On the lawn with bushes and trees and flower beds, a flexible three-wheeled lawn mower is needed. However, the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously. It requires a lot of manual adjustment and adjustment before and after, which is very laborious. A typical lawn mower only has a rear two-wheel height adjuster; the rear two-wheel height adjuster includes a total rear height adjustment handle (224a) and a left and right rear height adjustment L-type lever (224c), The rear two-wheel height adjuster includes a total rear height adjustment handle (224a) connected to the right rear rear elevation L-shaped lever (224c), and the left and right rear right height L-shaped levers ( 224c) rigidly connecting the left rear rear-adjusting L-shaped lever (224c) symmetrically rigidly across the rear of the lawn mower; the left and right rear height-adjusting L The fulcrum of the type lever (224c) coincides with the rear axle axis of the lawn mower, and the rear end force end axis of each of the left and right rear elevation L-shaped levers (224c) coincides with the axle of the rear double wheel (227); The rear double-wheel height adjuster has a plurality of gear positions on the body of the lawn mower including the side of the total rear height adjustment handle (224a).

A flexible three-wheeled lawn mower is required on the narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously raised, and needs to be manually adjusted several times before and after, so the present invention has a front single wheel and a rear The two-wheeled lawn mower with two poles moving up and down synchronously has been born to solve the world problem of three-wheeled lawn mower without the simultaneous adjustment of the front single wheel and the rear double wheel. The three-wheeled lawn mower with the front single wheel and the rear double wheel synchronously moving up and down with one pole is characterized in that the front single wheel height adjuster and the rear double wheel wheel are connected by the heightening long pole (224). The upper single wheel height adjuster is arranged above the front single wheel (t1), and the front single wheel height adjuster comprises an L type lever (226) and an inverted T type up and down moving height adjustment frame (225 The left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) are provided with a horizontal long groove (225a), and the fulcrum shaft (226c) of the L-shaped lever (226) is disposed at On the front wheel branch pipe, the output end axis (226a) of the L-shaped lever (226) is laterally movably inserted into the left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) to have a horizontal direction In the through slot of the long slot (225a), the force receiving end of the L-shaped lever (226) is connected to the heightening long rod (224) to connect the front single wheel height adjuster and the rear double wheel height adjuster The rear double wheel height adjuster includes a total rear height adjustment handle (224a) and a left and right rear height adjustment L type lever (224c), and the rear double wheel height adjuster includes a total rear height adjustment handle (224a) ) and the rear right height L-shaped bar on the right side of each of the left and right sides The rods (224c) are connected, and the right rear height-adjusting L-shaped levers (224c) of the left and right sides are symmetrically rigidly connected to the left side of the left and right by traversing the rear height adjustment shaft of the lawn mower. a rearwardly elevated L-shaped lever (224c), the left rearwardly-adjustable L-shaped lever (224c) of the left and right ones being coupled to the raised height mast (224); The fulcrum of the L-shaped lever (224c) is coincident with the rear axle axis of the lawn mower, and the rearward output end of the left and right L-shaped levers (224c) and the axle of the rear double wheel (227) Coincident; the rear double-wheel height adjuster includes a plurality of gear positions on the body of the lawn mower including the side of the total rear height adjustment handle (224a); the inverted T-type up and down moving height adjustment frame (225) The lower side of the rectangular frame is connected to the wheel carrier (t7), and the front wheel transverse axis (t4) penetrated on the wheel frame (t7) is provided with a rolling front single wheel (t1); When the height adjustment lever (224) of the wheel height adjuster and the rear double wheel height adjuster is turned up, the force receiving end of the L-shaped lever (226) is connected to the height adjustment long rod (224), the L Output lever (226) output end axis (226a) The horizontally movable insertion into the through-hole groove of the horizontal long groove (225a) provided on the left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) moves and pushes the rectangular square The frame movement causes the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) to move up and down along the vertical axis above the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) to realize the wheel relative position. The height of the chassis of the lawn mower is varied from the ground and is increased to make the mowing height variable.

The improved three-wheel lawn mower with a single parallel wheel and a rear double-wheel wheel with a synchronous parallel link is improved, and the three-wheeled lawn with the front single wheel and the rear double wheel synchronously moved up and down is mainly omitted. The inverted T-type of the important parts of the lawn mower moves the through-hole grooves of the horizontal long groove (225a) provided on the left and right sides of the rectangular frame of the height adjustment frame (225) to simplify the structure.

A three-wheeled lawn mower with a front parallel wheel and a rear double wheel adjusted by a synchronous parallel link, characterized in that it is connected to the front single wheel height adjuster and the rear double wheel height adjuster by the height adjustment long rod (224) The front single wheel height adjuster is disposed above the front single wheel (t1), and the front single wheel height adjuster comprises a parallelogram height adjustment structure with parallel links, the parallelogram height adjustment The four apexes of the structure are a first pin (228c) disposed on the front wheel branch connected to the lawn mower chassis, and a second pin disposed on the front wheel branch connected to the lawn mower chassis. a fulcrum shaft (226c) of the type lever (226), a third pin shaft (228a) provided at an upper portion of the wheel frame (t7), and a fourth pin shaft provided at an upper portion of the wheel frame (t7), which coincide with the L An output end shaft (226a) of the type lever (226); the first pin shaft (228c) to the second pin shaft constitute an upper horizontal side of the parallelogram height adjustment structure, and the third pin shaft (228a) a fourth pin to a lower horizontal side of the parallelogram height adjustment structure, a distance from the first pin shaft (228c) to the second pin shaft and the third pin shaft (228a) to the fourth pin shaft Equal distance The upper horizontal edge of the parallelogram height adjustment structure is parallel and equal to the lower horizontal edge of the parallelogram height adjustment structure, and the front parallel link of the parallelogram height adjustment structure is movably coupled to the second pin shaft a fulcrum shaft (226c) coincident with the L-shaped lever (226) and the fourth pin shaft coincide with an output end axis (226a) of the L-shaped lever (226), the rear parallel of the parallelogram height-adjusting structure a connecting rod is movably coupled to the first pin shaft (228c) and the third pin shaft (228a); the parallel parallel connecting rod of the parallelogram height adjusting structure and the rear parallel connecting rod of the parallelogram height adjusting structure are both Is active and always parallel, when the front parallel link and the rear parallel link move and rotate the angle, the upper horizontal edge of the parallelogram height adjustment structure and the parallelogram height adjustment structure are The vertical direction of the horizontal edge is changed to be increased; the front single wheel height adjuster includes a parallelogram-shaped L-shaped lever (226) with parallel links and the heightening long rod (224) Connected; the fulcrum shaft (226c) of the L-shaped lever (226) is disposed on the front wheel branch The output end shaft (226a) of the L-shaped lever (226) coincides with a fourth shaft provided on the wheel carrier (t7) and is connected to the wheel carrier (t7), and the wheel carrier (t7) is provided with The third pin shaft (228a) is provided with a rolling front single wheel (t1) on the front wheel transverse axis (t4) penetrated on the wheel frame (t7); the L-shaped lever (226) is subjected to a force end is connected to the height adjustment rod (224) for connecting the front single wheel height adjuster and the rear double wheel height adjuster; the rear double wheel height adjuster includes a total rear height adjustment handle (224a) and left and right Each of the rear height-adjusting L-shaped levers (224c), the rear two-wheel height adjuster including a total rear height-adjusting handle (224a) is coupled to the right-hand rear right-adjusting L-shaped lever (224c) of the left and right sides, The right rear height-adjusting L-shaped lever (224c) of each of the left and right sides is symmetrically rigidly connected to the left rear of the left and right by the cross-height shaft of the lawn mower. a lever (224c), the left rear height-adjusting L-shaped lever (224c) of the left and right ones is connected to the height-adjusting long rod (224); the left and right ones are rear-adjusted L-type levers ( The fulcrum of 224c) coincides with the axis of the rear axle of the lawn mower, The rear output end shaft of the high L-shaped lever (224c) coincides with the axle of the rear double wheel (227); the rear double-wheel height adjuster includes the body of the lawn mower on the side of the total rear height adjustment handle (224a) There are multiple gear positions on the front; when the front wheel single height adjuster and the rear double wheel are connected When the height adjustment long rod (224) is raised, the force end of the L-shaped lever (226) is connected to the height adjustment rod (224), and the output end of the L-type lever (226) When the shaft (226a) moves to change the rotation angle of the front parallel link of the parallelogram height adjustment structure and the rear parallel link of the parallelogram height adjustment structure, it is arranged to be connected to the lawn mower chassis. The distance between the upper horizontal side of the parallelogram height adjustment structure on the front wheel branch pipe and the vertical direction of the wheel frame (t7) of the lower horizontal side of the parallelogram height adjustment structure is changed to cause the wheel carrier (t7) The rolling front single wheel (t1) provided on the horizontal axis (t4) of the inserted front wheel is adjusted to be higher than the height of the ground of the lawn mower to the lawn mower The mowing mower of the chassis has a variable mowing height.

The improved three-wheeled lawn mower with a single parallel wheel and a rear double wheel and a parallel parallel link is characterized in that the heightening long rod (224) is composed of a first rod, The second segment rod, the third segment rod and the fourth segment rod are composed of a total of four segments.

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226).

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226) by a circular pin.

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226) by a circular pin having a sleeve.

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is The one pole and the third pole are horizontal poles that are parallel to each other in space.

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is The four-section lever is connected to the left rear height-adjusting L-shaped lever (224c).

Continuously improving and perfecting the three-wheeled lawn mower with the first parallel wheel and the rear double wheel and a parallel parallel link height adjustment, characterized in that the heightening long rod (224) is the first of the four-row rod The projection of the spatial angle between the segment rod and the second segment rod at the ground plane is 135 degrees.

Continuously improving and perfecting the three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel, characterized in that the height adjustment long rod (224) is the third of the four-section pole The projection angle between the segment rod and the fourth segment rod is 135 degrees on the left side of the lawn mower.

The improved three-wheeled lawn mower with a single parallel wheel and a rear double wheel and a parallel parallel link is characterized in that the heightening long rod (224) is composed of a first rod, The second section, the third section, and the fourth section of the rod are composed of a rectangular section of flat steel.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a schematic view of a series motor electric lawn mower mounted on the front of the cord reel.

Figure 2 is a schematic view of the circuit (without the battery portion) of the series motor electric lawn mower with the cord reel.

Figure 3 is a schematic illustration of a series motor electric lawn mower with a cord reel mounted in the middle.

Figure 4 is a schematic view of a cutting device assembly having a pull rod and a grass head disposed in the middle of the lawn mower with a series motor.

Figure 5 is a cross-sectional view of a cutting device assembly having a pull rod and a grass head disposed in the middle of the lawn mower with a series motor.

Figure 6 is a schematic illustration of a labyrinth pull frame (80) that connects the puller head and pulls the swivel and thrust bearing.

Figure 7 is a schematic illustration of a reeling wheel (25-3) for grass cutting.

Fig. 8 is a schematic view showing the enlargement of the front single wheel by the flat lever rotation angle gear.

Figure 9 is a schematic illustration of the pull lever (78) of the cutting head assembly having a grass head disposed in the middle of the lawn mower.

Figure 10 is a schematic view of the explosion of the grass head.

Figure 11 is a schematic illustration of a battery holder assembly.

Figure 12 is a schematic illustration of an insulated seat (85) with a fan.

Figure 13 is a schematic illustration of a triangular shaped, noise-resistant nylon wire (134).

Figure 14 is an enlarged schematic illustration of a triangular shaped, noise-resistant nylon wire (134).

Figure 15 is an assembled view of a push button (QA) and switch handle (75) and a switch box (75b) with a latch.

Figure 16 is a schematic illustration of a button (QA) having a push button (QA) and a switch handle (75) and a switch box (75b) of the latch.

Figure 17 is a schematic exploded view of the winder.

Figure 18 is a perspective view of the damper dial of the centrifugal slow retracting device.

Figure 19 is a perspective view of a torsion spring pin with a torsion spring of a centrifugal slow retracting device.

Figure 20 is a partial assembly view of the winder.

Fig. 21 is a top plan view showing the locking of the inner and outer cam grooves having a plurality of control points.

Fig. 22 is a top plan view showing the inner and outer cam grooves having a plurality of control points at a near and far distance.

Figure 23 is a schematic illustration of a damper device having a toggle lever and a rack and pinion.

Figure 24 is a schematic illustration of a side piston damper having four small sliders and a tension spring and a side piston.

Figure 25 is a schematic view showing the gear engagement and the side piston damping case mounting.

Figure 26 is a cross-sectional view of the spiral friction one-way mechanism of the damper device.

Figure 27 is a cutaway perspective view of the spiral friction unidirectional mechanism of the cord reel and the damper device.

Figure 28 is a perspective view of the roller of the tube angle washer mechanism.

Figure 29 is a perspective view of the guide rear bracket (51) with angled slots.

Figure 30 is a vertical sectional view showing the flap spring damper mechanism.

Figure 31 is a perspective view of the pipe damper.

Figure 32 is a schematic cross-sectional view of a positional lock with a ball.

Figure 33 is a vertical sectional view of the reverse resistance mechanism.

Figure 34 is a schematic exploded view of a brake with a function disk (206) of an electric lawn mower.

Figure 35 is a cross-sectional view showing the brake of the brake device with a function disk (206) of the electric lawn mower.

Fig. 36 is a cross-sectional view showing the brake of the function disk (206) of the electric lawn mower without braking.

Figure 37 is a schematic illustration of the axle (204b) of the brake having an axially progressively raised friction block (204c).

Figure 38 is a schematic illustration of a variable angle angled disc (204b) having an axially progressively raised friction block (204c).

Figure 39 is a schematic illustration of the axial angle of the shaft (204b) of the progressively raised friction block (204c) as a function of the side angle.

Figure 40 is a perspective view showing the brake disc of the electric lawn mower with the output pulley removed to expose the inner shaft (204b).

Figure 41 is a perspective view of the multi-tooth (204t) output pulley of the brake of the electric lawn mower.

Figure 42 is an internal schematic view of a multi-tooth (209t) radial centrifugal block (208t) of a brake of an electric lawn mower.

Figure 43 is a schematic view of a three-wheel mower having a flat head rotation angle gear for raising the front single wheel.

Figure 44 is a schematic view showing the combination of the front wheel of the three-wheel mower having the height adjustment.

Figure 45 is a schematic view of the chassis frame (t9) of the three-wheel mower having the front wheel of the height adjustment.

Fig. 46 is a schematic view showing the wheel carrier height adjusting groove (t8) provided on the wheel carrier (t7) having the front wheel of the height adjustment.

Fig. 47 is a schematic view showing the twisting handle (t5) for adjusting the front wheel transverse axis (t4) of the front wheel having the height adjustment.

Fig. 48 is a schematic view showing a card wheel (t3) for adjusting the front wheel horizontal axis (t4) of the front wheel having the height adjustment.

Fig. 49 is a schematic view showing the front wheel horizontal axis (t4) of the front wheel having the height adjustment.

Figure 50 is a schematic view of a front wheel bracket (t12) having a front wheel that is raised.

Figure 51 is a schematic view of a chassis feeder (t13) having a single front wheel.

Fig. 52 is a schematic view showing the combination of the single wheel before the adjustment of the twisting handle (t5).

Fig. 53 is a schematic view showing the combination of the front direction of the single wheel before the adjustment of the twisted handle (t5).

Figure 54 is a schematic view of a three-wheeled lawn mower with a front single wheel and a rear double wheel synchronized up and down with one rod.

Fig. 55 is a schematic view showing the vertical axis of the rectangular frame of the inverted T-type up and down moving height adjustment frame (225).

Figure 56 is a schematic view of a three-wheeled lawn mower with a front single wheel and a rear double wheel adjusted with a single parallel parallel link.

Fig. 57 is a schematic view showing the elevation of a parallel parallel link with a front single wheel and a rear double wheel.

As shown in the figure, in the figure:

1. is a small slider; 2. is a tension spring; 3. is a damping box; 4. is a large gear; 5. is an inner disc; 6. is a damping dial; 7. is a small piston; 8. is a compression spring; Is a pinion; 10. is a turn pin; 11. is a spring spring; 12. is the upper plate; 13. is the upper shell; 14. is the main wheel; 15. is the pipe joint; 16. is the lower plate; 17. is the lower shell; 18. is the long pin; 19. is the bracket; 20. is the lower small end cover; 21. is the upper small inner cover; 22. is the upper small cover; 105. is the helix angle greater than 23.5 degrees Internal spiral friction wheel; 106. is a spiral axis with a helix angle greater than 23.5 degrees; 23. is a reverse resistance turntable; 24. is a reverse resistance turn block; 25. is a pin shaft; 26. is a torsion spring (26); Curved rack; 42. is a gear that meshes with the curved rack; 43. is a toggle lever; 51. is a guide rear bracket; 52. is a guide front bracket; 53. is a piper; 54. Roller core cover; 55. is a roller; 61. is a flap (61) of the flap spring mechanism; 62. is a compression spring (62) of the flap spring mechanism; 63. is the damping of the flap spring mechanism The casing (63); 64. is a dense threaded shaft (64) of the flap spring mechanism; 65. is a damping box cover (65) of the flap spring mechanism; 63a. is damping of the flap spring mechanism a convex guide rail (63a) of the shell (63); 70. a ball (70) having a ball position lock; 71. a position lock case (71) having an axially long groove (71a) having a ball position lock; a lock cylinder (72) having a ball position lock; 73. an L-shaped end portion (73a) having a ball position lock and a torsion spring (73) having a U-shaped end portion (73b); 74. is a lock cylinder Shaft (74); 25-1. is a reel spring; 25-3. is a reel; 134. is a nylon thread; 25-3b. is a reel aluminum head; 25-6. is a line eye insert 25-7. is the top cover of the wire box; 126. is the blade cover; 127. is the blade; RC. is the insurance; K. is the switch; L3. is the inductance L3; L4 is the inductance L4; C. is the capacitance C; L1. is the winding L1; L2. is the winding L2; M. is the series motor; AQ. is the starting button; 75. is the handle 75; Di. is the diode; R1 is the resistance R1; R2. is the electric R2; It is a light-emitting tube LED; 90c. is a fixed seat 90c of the bracket seat; 90a. is a sliding rod 90a; 90b. is a limit 90b; 90. is a living bracket 90; 90c. is a fixed seat 90c; 85. is a knife seat 85; 85a. is a spline groove 85a; 82. is a large pulley 82; 82a. is a spline 82a; 85d. is the wind Fan 85d; 85c. is a small through hole 85c; 85b. is a cutting edge 85b; 76. is an inner frame; 77. is a series motor; 84. is a motor pulley; 83. is a belt; 82. is a large pulley; 81 Is the pull line; 78. is to pull the rod; 79. is the thrust bearing; 80. is the labyrinth pull frame 80; 24-3. is the grass head shell 24-3; 123. is the protective coil 123; 34a. Is a notch 34a; 81. is a pull line 81; 81b. is a pay-off lever 81b; 80c. is a hole 80c to pull the rod; 80b. is a long hole 80b; 80d. is a center hole 80d; 80a. is a labyrinth 80a; 75b. is a connector holder 75b with a handle 75; the head of the handle 75 is provided with a hook head; QA2. is a long sheet QA2; QA1 is a pressure block QA1; QA3. is a limit piece QA3; 204. Pulley; 203. Output shaft; 216. Machine screw; 206. Function wave disc brake; 207. Brake fixing plate; 218. Hexagon screw; 219. Hex nut; 208. Brake lever; 215. Rivet; 209. friction plate; 223. solid rivet; 210. brake tension spring; 211. cable; t1 is the front single wheel, t2 is the flat rod, t3 is the card wheel, t4 is the front wheel horizontal axis, t5 is the twist handle, T7 is the wheel carrier, t8 is the wheel carrier height adjustment slot, t9 is the chassis frame, t10 is the front wheel vertical axis, t11 is the front wheel branch pipe, T12 is the front wheel bracket, t13 is the chassis feeding frame, t7j is the gear of multiple rotation angles, t2k is the handle, t2j is the flange; 226.L type lever; 225. inverted T type up and down moving height adjustment; 225a. Long groove in the horizontal direction; 226c. fulcrum axis; 226a output end axis; 224. height adjustment long rod; 224a. total rear height adjustment handle; 224c. rear height adjustment L type lever; 227. rear double wheel; 228a. Pin; 228c. first pin.

detailed description

First build a computer 3D mold, then engrave the mold; then add anti-collision and brake on the lawn mower, the technical equations and modeling methods are:

Establish the parameter (PARAMETER) 1: C real number, which can be assigned between 0.01-1 according to the specific working conditions, such as 0.3; C is also called wave height. Establish the parameter (PARAMETER) 2: N integer (integer), according to the specific conditions between 2-100, such as 13; N is also known as the wave number. Establishing a relationship (RELATION), such as the sine wave equation of the present invention is: computer default SDi = C * SIN (TRAJPAR * 360 * N); in the above formula, i is the size number serial number; SIN = SINE, sine function; TRAJPAR, Trajectory function. Then use rotation, merge, materialization and other instructions, that is, modeled as a function wave disk.

It should be particularly noted that the function waveform of the present invention can also be combined with other various mathematical functions and rough bumps.

The invention is a major improvement of the conventional lawn mower for lawn mows in gardens, parks and roadsides. The main improvement is that the front of the lawn mower is provided with a movable extraction bracket for the storage of the battery; Some cutting devices are driven by a series motor that is not mounted at the center but biased; two types of cutting devices are available, one is a knife with a fan plastic seat, and the other is to turn the original grass machine up. The nylon wire of the reel in the wheel is transplanted to the lawn mower; because the offset series motor gives up the central axis position, the center wire of the present invention can be used to pull the rotating rod to release the aluminum head of the reel, thereby Breaking the history that the straw cutting machine can not be used for lawn mowers; and because of the use of a winding device with a variety of damping mechanisms, namely the centrifugal slow retraction device, the side piston damping device, the position lock, Trapped pressure spring damping mechanism, reverse resistance mechanism, pipe arranging angle slot The winding device complemented by the damping mechanism greatly increases the mowing range of the conventional electric lawn mower. Perhaps it can be said that a mower that has both a grass head and a reel is created, such a new technical field. It is beneficial to solve the problems of counterweight, power supply and mowing.

The technical solution adopted by the present invention to solve its technical problems is:

The three-wheeled series motor electric lawn mower is a lawn mower that has both a grass head and a reel. It mainly installs three major assemblies on a common lawn mower, that is, a battery bracket assembly. a cutting device assembly with a pulling rod and a grass cutting head disposed in the middle of the lawn mower driven by the series motor, and a reel assembly; the bracket is a lawn mower The front part is provided with a movable extraction bracket for placing the battery; the cutting device has two types, one is a lawn cutter on the center of the lawn mower, and a knife seat with a plastic fan is provided for guiding and insulating; The other is to transplant the nylon thread of the reel in the reel of the original lawnmower to the lawn mower. Because the offset series motor gives up the position of the central axis, it is possible to make the central shaft hollow. The center pull wire of the invention pulls the rotating rod to make the reeling line; in practical use, it is better to test the cutting device according to the straw condition; the reel is installed in the front or middle of the lawn mower to solve the weight and Power supply; detailed below:

The battery bracket assembly of the series motor electric lawn mower is provided with a movable storage bracket for placing the battery in front of the lawn mower; the battery bracket assembly is as shown in FIG. , a fixed carriage 90c fixed to the bracket seat at the bottom of the lawn mower, and a movable bracket 90 provided with a slide bar 90a and a limit 90b, and a charger and an inverter not shown The battery is composed of a sliding rod 90a of the living bracket (90), which is placed in the fixed sliding seat 90c of the bracket seat, and can be placed thereon after being pulled out and positioned by the limiting position 90b. The battery can also be placed with any counterweight. The operator can select both the battery and the external power supply through the cord reel to cut grass in the case of a multi-tree mixed lawn area or temporary power outage.

The cutting device assembly provided in the middle of the series motor electric lawn mower is driven by a series motor which is not installed at the center but is biased; two kinds of cutting devices are available, one is a fan The knife of the plastic knife seat, the other is to transplant the nylon thread of the reel in the runner of the original grass cutter to the lawn mower; because the offset series motor gives up the central axis position, In order to use the center cable to pull the rotating rod, the aluminum head of the reel can be put on the line, thereby breaking the history that the nylon thread cutting device can not be used for the lawn mower; the series motor electric lawn mower has a fan. The knife of the plastic knife seat is a knife blade with a plastic fan on the lawn cutter in the center of the lawn mower. Referring to Fig. 12, the knife seat 85 is provided with a spline groove 85a so as to be in contact with the large pulley 82. The spline 82a cooperates to cut the blade of the blade under the driving of the offset series motor; the blade holder 85 is provided with a plurality of fans 85d for guiding the wind; and the fan is provided There are a plurality of small through holes 85c, preferably hexagonal holes, to facilitate noise reduction; and the fan is provided with a cutting edge 85b to facilitate Grass wound; said seat is appropriate non-conductive material, such as nylon plastic defibrillators.

The cutting device assembly provided in the middle of the series motor electric lawn mower is driven by a series motor which is not installed at the center but is biased; two kinds of cutting devices are available, one is a fan The knife of the plastic knife seat, the other is to transplant the nylon thread of the reel in the runner of the original grass cutter to the lawn mower; because the offset series motor gives up the central axis position, In order to use the center cable to pull the rotating rod, the aluminum head of the reel can be put on the line, thereby breaking the history that the nylon thread cutting device can not be used for the lawn mower; the middle of the series motor electric lawn mower is provided The cutting device assembly with the grass head and the center pull wire pulling the rotating rod, referring to FIG. 4 and FIG. 5, is driven by the inner frame 76, the series motor 77, the motor pulley 84, the belt 83, the large pulley 82, the pulling wire 81, and the pulling The rod 78, the thrust bearing 79, the labyrinth pull frame 80, and the grass head are composed; and the grass head, which is also called the rope rope grass assembly with the wire box base, can be seen in FIG. , by the grass head shell 24-3, the reel spring 25-1, the reel 25-3 , the nylon thread 134, the protective coil 123, the eyelet insert 25-6, the wire box upper cover 25-7; the blade 127 is arranged on the circumference of the lawn mower cutting disc, and the blade sleeve 126 is placed when not in use On the blade 127, there is a protective effect; the original use of a strong reel aluminum head 25-3b, when the line is short, the operator's pier is pressed, the reel aluminum head 25-3b hits the ground, so that the reel spring 25 -1 compression, and the reel 25-3 is rotated, so that the nylon thread 134 therein passes through the line insert 25-6, and the line is released, and the excessively long line is trimmed by the blade 127; Pressing the ground, the aluminum head 25-3b of the reel can be omitted, but the rotating rod is pulled by the center pulling wire to make the reel; the excessively long line is trimmed by the blade 127; the nylon thread 134 Preferably, a type of lawnmower shaped multi-groove line is used, and the profiled line is characterized by having a notch 34a in its cross section, at least one, or more, for example three; the notch is along nylon The wire is spirally shaped and equally distributed along the circumference; the notch is triangular to facilitate mowing; the inner frame 76 is mounted above the cutting disk of the mower chassis, Offset a motor pulley 84 is disposed on the shaft of the motor 77, and a large pulley 82 having a center line at the center of the cutting disc of the chassis is driven by the belt 83; the large pulley 82 drives the grass head; the large The pulley 82 is sequentially connected with the grass head shell 24-3, the eyelet insert 25-6, and the wire box upper cover 25-7, and is press-fitted by the reel spring 25-1 in the grass head shell 24-3. The reel 25-3, the reel 25-3 is provided with a nylon thread 134, and a retaining coil 123; the pulling rod 78 is connected with the reel 25-3, or is fixed Or with a shaft ring, or with a reverse thread buckle, or with a thrust bearing; the other end of the pulling rod 78 is connected to the labyrinth of the pull frame 80 through the thrust bearing 79, the pull The end of the wire rope of the pull wire 81 is set on the rotating frame 80, and the other distal end of the wire puller is connected with the pay-off lever 81b of the large handrail of the lawn mower; when the wire is put on, the pull wire pulls the rotating rod. Referring to Figure 7, the several bosses on the reel are moved up, and several holes of the upper cover 25-7 of the wire box are disengaged, and the reel is rotated relative to the head of the grass to be placed; hit When the whole grass head rotates, the reel does not rotate with respect to the grass head shell; the labyrinth pull frame 80 is square-shaped, so that it is not easy to be deformed, because one side is used. It is easy to be deformed for a long time; underneath it is provided with a hole 80c for pulling the rotating rod for releasing the thrust bearing 79 and the insertion rod, and the side surface is provided with a long hole 80b for being placed in the wire drawing head; the center hole 80d is provided thereon The pull wire, in particular, is provided with a labyrinth 80a thereon, which has a plurality of curved roads connecting the long hole and the center hole, so that the thick end of the wire rope of the wire is first placed into the pull frame 80 through the long hole 80b. The frame, and then the wire rope of the wire is bypassed along a plurality of curved roads of the labyrinth 80a to enter the center hole, so that it is not easy to loosen.

The circuit diagram of the series motor electric lawn mower, as shown in FIG. 2, is mainly composed of a safety RC, a switch K, an inductor L3, an inductor L4, a capacitor C, and a series motor M provided with a winding L1 and a winding L2. And the start button AQ and the handle 75, and the diode Di, the resistor R1, R2, the LED tube, the winder and the plug and socket; the invention deliberately has an insurance RC, which uses a fuse, or uses a thermal relay, or Overcurrent protector for safer; why is there insurance already in the power supply, plus insurance? Because the power supply is also available in multiple places, its insurance is often too large and not just suitable for this lawn mower.

Referring to Figure 15, Figure 16 and Figure 1, the start button AQ and the head of the handle 75, and the diode Di, the resistors R1, R2, the LEDs, the switch K and the plug, and the respective return springs of each member, They are all mounted on the connector holder 75b of the lawn mower with the handle 75; the head of the handle 75 is provided with a hook; the start button AQ is provided with a long sheet QA2, and is connected by a long sheet. The pressing block QA1 is further provided with a limiting piece QA3; when the starting button AQ is pressed and the handle 75 is pulled, the head of the handle 75 is provided with a hook head pressing the pressing block QA1 of the starting button AQ, And the pressing block QA1 of the starting button AQ is pressed against the switch K to start; when it is to be closed, each piece can be elastically reset as long as the handle 75 is pulled; the diode Di, the resistor R1, R2, the luminous tube The LED is only used as an indicator light; one end of the reel is connected to a power source, and the other end of the reel is connected to a plug on the connector 75b with the handle 75, and is connected to the motor through the switch K.

The operator chooses a winding device with a variety of damping mechanisms, namely the wheel housing assembly, the centrifugal slow retracting device, the side piston damping device, the position lock, and the angular groove on the reverse resistance mechanism and the pipe arranging device. The bracket 19 on the outer casing of the winding device composed of the damper mechanism is connected by a long pin 18 and can be slightly rotated within 180 degrees to be placed in the front or middle portion of the lawn mower; as shown in Fig. 1 or Fig. 3 A vertical shaft may be provided at the front of the lawn mower, and a hole sleeve may be arranged on the vertical shaft in the middle of the bracket 19; or a vertical shaft may be arranged in the middle of the lawn mower and wound in the line The middle shaft of the device is provided with holes, which are assembled on the vertical axis; and the power supply is fixed and fixed; when the operator cuts the grass, it is better to turn the wire from the front of the lawn mower instead of from the lawn mower. Turning, that is to say, you should pay attention not to mix your feet. According to the mixed and near-far situation of the grass, the operator can also choose a winder with several or several kinds of damping mechanisms, because there are spaces around the fixed large gear 4, and multiple pinions 9 can be placed to connect the multiple dampings. Agency and location locks. Alternatively, the battery can be replaced. Because the wheel housing assembly consists of the upper shell 13, the upper disc 12, the coil spring 12, the inner disc 5, the large gear 4, the main wheel 14, the joint 15, the lower disc 16, the lower shell 17, the long pin 18, the bracket 19 components. The hole of the central shaft of the outer casing is provided with a lower disc 16 and an inner disc 5 provided with a rotating shaft; the inner disc 5 is formed with a retracting device by a coil spring spring 11 and an upper large disc 12; a small inner lid 21 is inserted into the inner disc 5, Moreover, it is mounted on the upper casing 13 by being fixed by the upper outer cover 22. The groove on the shaft of the stationary inner disk 5 is fixed to the end of the coil spring 12 near the center of the circle, and the outer ring of the coil spring is fitted on the post at the edge of the rotating main wheel 14, and is used The upper tray 12 is covered by the four card slots on the edge. So the big gear does not move. When the operator pulls the pipeline, since the main wheel 14 is equipped with the wire joint 15, the wire is loaded on the wire joint and the pipe is passed through the two rollers of the piper and wound on the main wheel, and the main wheel 14 and the lower The disc 16 is integrally fixed by screw fixing, and is inserted into the smooth outer shaft table of the central large tube of the lower casing 17 by the central large shaft of the lower disc 16, so that the upper disc 12, the main wheel 14, the tube The joint 15 and the lower disc 16 are rotated relative to the outer casing; the pinion 9 and the turntable 6 drive the one end 30 of the brace pin 10 to run in the cam type groove of the bottom surface of the damping case 3; when the pull is stopped, the pin is turned The pin end 30 is locked due to the spring reaction; the point is pulled and released again, the pin end 30 is unlocked along the outer ring groove, and the hose or cable is automatically rewinded under the reaction force of the spring 11; if too fast, A high-speed pinion 9 like a planetary wheel effect causes the small slider 1 to be centrifugally extended, and is damped in contact with the shell side and the small piston 7. The small slider 1 which is pulled by the tension spring 2 and protrudes along the slide 6a of the damper turntable 6, in particular, the involute surface and the parabolic surface of the peach body of the small slider 1, the fish ground and the small piston 7 And the internal damping, meshing, sliding, and friction of the damping case 3 enhance the slow retracting damping effect.

The newly conceived solution is to use the middle fixed gear 4 in the reel that has been used, and to rotate the pinion 9 around it, to install another damping case, or to replace The slow retracting damping device used in the present invention can also be referred to as a pre-spinning device with a flap spring mechanism and a multi-damper mechanism, so several damping boxes are added, which are selected according to customer requirements and performance requirements of the product model. of. Moreover, since the flap spring mechanism is composed of a pinion gear 9, a threaded shaft 64 driven by the pinion gear 9, a flap 61, a compression spring 62, a damping casing 63, and a damping box cover 65; The threaded shaft 64 is provided with a thread; the thread is preferably a fine-toothed standard thread, the fine teeth of which are advantageous for shortening the shaft stroke, and the standard thread is advantageous for processing; the flap 61 is internally threaded to facilitate The threaded shaft 64 is moved up and down in conjunction with each other; the flap 61 is provided with a plurality of outer grooves, preferably four, for sliding with the plurality of convex rails 63a in the damping casing 63; The pressure spring 62 is mounted under the plate 61, and the other end of the compression spring 62 is in contact with the inside of the casing of the damping casing 63; the damping casing 63 is fitted on the main wheel 14; the damping box cover 65 is assembled On the upper surface of the damper case 63, when the main wheel 14 is retracted, the threaded shaft 64 driven by the pinion 9 moves the flap 61 downward, so that the pressure spring 62 is more pressurized in the box of the damper case 63. To the damping effect; When the main wheel 14 is pulled out and reversed in the pipeline, the close screw shaft 64 driven by the pinion gear 9 moves the flap 61 upward, so that the compression spring 62 is less pressed into the casing of the damping box casing 63; A winding device with a multi-damper mechanism of a compression spring mechanism.

In another damping case, a spiral shaft 106 driven by the same other pinion 9 is provided, and a spiral having a helix angle greater than 23.5 degrees is coupled with the inner spiral friction wheel 105; when the shaft is rotated, the wheel moves down the bottom of the friction shell And vice versa; the damping effect of the spiral friction type one-way mechanism forming the damper.

At the same time, in another damper case to be mounted, the counter-rotation turntable 23 is rotated under the driving of several identical ones of the pinions 9 provided on the periphery of the large gear 4; The reverse resistance mechanism of the winding device is composed of a reverse resistance turntable 23, a reverse resistance turn block 24, a torsion spring 26, a pin shaft 25, and a pinion gear 9. The movable counter-rotating block 24 of the plurality of the pins 23 of the counter-rotating turntable, which are inserted into the pin 23, is inserted into the pin 25, and the plurality of torsion springs are usually placed, especially Under the action of the torsion spring 26 inserted into one end of the four uniform small holes 23b and the other end of the torsion spring, the small curved surface 24c of the reverse resistance rotating block 24 does not touch the inner wall of the damping case, but reverse resistance The chord surface 24d of the block 24 is close to the inner wall, that is, it is unobstructed when it is pulled forward, and the limit projection 24a of the reverse resistance turn block 24 matches the limit block 23a of the limit-resistance turntable. However, when retracting in the reverse direction, the reverse resistance block 24 is subjected to centripetal force at a high speed, and centrifugal deflection causes the small curved surface 24c of the reverse resistance rotating block 24 to touch the inner wall of the damper case, resulting in a reverse resistance effect.

Since the upper casing 13 of the winding device is disposed, the two holes of the guide rear bracket 51 of the two roller core covers 54 of the pipe arranging device 53 at the outlet of the lower casing 17 are changed as shown in FIG. The long circular grooves of the angle a with each other, so that the two axial centers of the roller core cover are formed to be far away from the angle groove 51a when the tube is pulled out, that is, the roller is loose, and the angle groove 51b is pulled when being pulled in. Closer, that is, a tightly angled, angular grooved damping mechanism. When the operator pulls out the wire, the roller is subjected to an outward frictional force such that the roller core cover 54 of the loading roller 55 is pulled along the angular groove 51a when pulled out; and because of the guide rear bracket of the pipe keeper 53 The roller core cover 54 placed in the angular groove of 51 can be referred to FIG. 24, and the distance between the original two axial centers is changed to a dynamic distance; the outer side of each circumference of the cover is provided with a pull block 54a and each The small tension spring hole 54c of the pull block is gently pulled by the two ends of the tension spring 54b with a small pulling force inserted into the small tension spring hole; the roller core cover is placed in the two Roller 55, and a movable pipeline is installed between the two rollers; the guide front bracket 52 and the guide rear bracket 51 of the duct 53 are combined to form an angular slot for the roller core cover. The illustrated long circular grooves of angle a are formed such that the two axial centers of the roller core cover are loose along the angular groove 51a when the tube is pulled out, that is, the roller is loose. When the line is retracted, the angle a of the long circular groove with the angle a of the roller core cover (shown in FIG. 23) is between 1 and 23 degrees, and since the pipeline is taken into consideration Is turned to the left, and the two sides of the angle a with each other, the angle between the two sides and the vertical line, the left angle β is smaller than the right angle γ, so when the tube is retracted, the roller is inwardly The friction component is such that the roller core cover 54 of the loading roller 55 is pulled closer along the angle groove 51b, and the angular groove of the roller core cover is placed so that the two axial centers of the roller core cover are close to each other, thus forming an angle along the angle The groove 51b is closer to the roller, and the roller is tightly adjustable, the angled groove type damping mechanism.

Because the technical solution of the ball position lock and the multi-damper mechanism of the present invention for solving the problem of the arbitrary position lock can be called the ball position lock, the key to the technical innovation lies in the ball; the newly conceived solution is already used. In the reel, the middle fixed pinion 4 is used, and the pinion 9 can be mounted around to rotate the ball, and the ball winding device with the ball position lock and the multi-damper mechanism is added. The position lock is composed of a pinion gear 9, a lock cylinder shaft 74 driven by the pinion gear 9, a ball 70, a torsion spring 73, a lock cylinder 72, and a position lock case 71; the position lock case 71 is assembled on the main wheel 14 Above, the torsion spring 73 is placed on the lock The mandrel 74, and the normal state is the enveloping sleeve; the lock cylinder 72 is lively fitted on the torsion spring 73 and the lock core shaft 74 and fit into the position lock case 71; The lock cylinder 72 is provided with an eccentric heart-shaped lock groove, which is eccentric so that the ball moves in the groove direction, and the heart-shaped recessed bottom is a position when the ball enters the lock; the feature is: the ball 70 is smooth, It is better to be a steel ball; and because the ball 70 has six degrees of freedom, that is, three degrees of translational freedom and three degrees of freedom of rotation, the ball is less than the pin or the lock pin when moving. The torsional moment is divided, and it is less likely to get stuck occasionally. The torsion spring 73 is a tight ring and has a circular cross section, which facilitates processing the multi-bend L-shaped end portion 73a and the U-shaped end portion 73b, and is also difficult to wear the core due to the square torsion edge during operation. axis. Moreover, since the end portion 73a of the torsion spring 73 is L-shaped, so as to facilitate the clamping over the lock cylinder 72; and the other end 73b is U-shaped and has two sides, thereby facilitating the The pushing of the ball 70; and because the end portion 73a of the torsion spring 73 is caught on the lock cylinder 72, the end portion 73b of the torsion spring 73 protrudes into the heart-shaped lock groove of the lock cylinder 72. Close to the apex of the apex and in contact with the ball 70; the ball 70 is movably mounted in the axial slot 71a of the position lock case 71 and the heart lock groove of the lock cylinder 72, and It is in contact with the end portion 73b of the torsion spring 73 that is fitted to the lock spindle 74 and protrudes to the lock cylinder 72 so as to be interlocked with the heart-shaped lock groove of the lock cylinder 72 to be in the axial direction of the lock case 71 with the position. The long groove 71a moves up and down, and the object is that when the ball 70 pushes the end portion 73b of the torsion spring 73 into position, the inner diameter of the torsion spring ring becomes large to release the lock driven by the pinion gear 9. The mandrel 74 frees the pipeline; and when the ball 70 falls to the lock position, the end portion 73b of the torsion spring 73 is not pushed, and the inner diameter of the torsion spring ring is made smaller to wrap the pinion 9 The driven lock shaft 74 prevents the pipeline from moving; It is formed with a winding apparatus and a multi-position of the lock ball damping mechanism. When the operator pulls the pipeline, since the main wheel 14 is equipped with the joint 15, the wire is wound on the joint and the wire is wound around the main wheel, and the main wheel 14 and the lower plate 16 are integrally fixed by screws. And the inner large shaft of the lower disc 16) is rotatably inserted into the smooth outer shaft of the central large tube of the lower casing 17, so that the upper disc 12, the main wheel 14, the pipe joint 15, and the lower disc 16 are opposite. The outer casing is rotated; the main wheel 14 drives the pinion 9 when the line is pulled out. When the ball is stopped, the ball 70, due to the spring reaction, will be provided with an eccentric heart-shaped locking groove (the eccentricity so that the ball moves in the groove) along the lock cylinder 72, and hits the heart-shaped concave. Into the bottom, the ball enters the position of the lock, is locked; pull the point and release the pipeline, no lock, the hose or cable is automatically rewinded under the reaction force of the spring 11 . In some cases, if the left and right rotation angle is too large, in the middle of the shaft of the reel, or on the vertical axis for installation, a double slip ring with a carbon brush joint may be provided to protect certain A wire that is hardened by a Brinell test of a copper-aluminum wire.

Because on the electric lawn mower, an anti-collision fuse provided at the front of the lawn mower chassis is disposed on the living bracket (90) of the bracket assembly, and is mounted on the bracket of the lawn mower chassis. The fixed sliding seat (90c) and the pullable living bracket (90) provided with a sliding rod (90a) and a limit position (90b), the sliding rod (90a) set of the living bracket (90) In the fixed seat (90c) of the bracket seat, when being pulled out, it is positioned by the limit position (90b), characterized in that the live bracket (90) is out rubberized, and the limit is (90b) is provided with a limit switch for triggering the limit when the current side collides with the outer rubber skin of the live support (90) to retract the slide bar (90a) of the live support (90) (90b) a limit switch provided to form an anti-collision fuse; the brake provided in the middle of the mower chassis of the series motor electric lawn mower provided in the middle of the lawn mower chassis, a frame (76) mounted above the cutting wheel of the lawn mower chassis, the inner frame being provided with an offset series motor (77) on the axis of the biased series motor (77) With motor pulley (84) and through the skin With (83), the drive centerline is cut on the chassis a central pulley (204); and an output shaft (203) coupled to the concentric hub thereof, wherein the pulley (204) is fixed with a machine screw (216) as a function disk brake pad for braking (206) ); a brake fixing plate (207) is fixed on the inner frame (76), and is fixed to each other by a hexagonal screw (218) and a hex nut (219); a brake lever is arranged on the brake fixing plate (207). (208), can be flexibly rotated by the connection of the rivet (215); the brake lever (208) is provided with a friction plate (209), which is connected by a solid rivet (223), and acts on the brake fixing plate (207) and the system. The brake tension spring (210) on the moving rod (208) brakes the friction plate (209) and the function disk brake pad (206) for braking on the pulley (204); the brake lever ( 208) A cable (211) is connected with the joystick for braking the clutch; when the starting lever starts the machine, the cable drives the brake lever to rotate, so that the friction plate is separated from the brake plate, and the brake is pulled at this time. The spring is elongated, so that the brake tension spring accumulates the elastic force. When the starting lever is released, the power supply is cut off, the pulley loses power, and the brake tension spring releases the elastic force, so that the friction plate tensions the brake plate and stops the pulley. Move to achieve brake function. This is intuitive and easy for the general staff, so I won't go into details.

The feature of the three-wheel mower having the flat head rotation angle of the grass head to increase the front single wheel is to save one wheel: it includes the front single wheel (t1), the flat rod (t2), and the card. Wheel (t3), front wheel horizontal axis (t4), twist handle (t5), wheel carrier (t7), wheel carrier height adjustment groove (t8), chassis frame (t9), front wheel vertical axis (t10), front wheel branch pipe (t11), a front wheel bracket (t12), a chassis grass feeder (t13), the chassis frame (t9) and the chassis grass feeder (t13) are provided at a front portion of the lawn mower chassis. The front wheel branch pipe (t11) is symmetrically disposed on the left and right sides of the chassis frame (t9) and the front portion of the chassis grass feeder (t13), in front of the two In the middle of the wheel branch pipe (t11), the front wheel bracket (t12) is provided, and the front wheel bracket (t12) is movably provided with the front wheel vertical shaft (t10), and the front wheel vertical shaft (t10) is connected to the wheel carrier (t7); the wheel carrier (t7) is symmetrically disposed on the left and right sides of the wheel carrier (t8), in the two The front wheel transverse axis (t4) is inserted into the wheel height adjusting groove (t8); and the front single wheel (t1) capable of rolling is provided on the front wheel horizontal axis (t4); A three-wheeled lawn mower having a flat head rotation angle gear for raising the front single wheel is characterized in that a plurality of rotation angle gears (t7j) are provided on the wheel carrier (t7), and The flat bar (t2) containing the handle (t2k) is mounted on the center of the rotation of the rotation angle gear, and the flat bar (t2) is provided with a flange (t2j) for operating the The flat bar (t2) of the handle (t2k) is engageable with an optional gear (t7j) of the plurality of rotational angle gears (t7j) to provide the front wheel transverse axis (t4) The front wheel (t1) that can be rolled is changed in height with respect to the height of the chassis of the lawn mower from the ground so that the mowing height is variable. The plurality of rotation angle gears (t7j) are conveniently arranged at a center angle of the rotation of the rotation angle of 5-20 degrees between each of the gears (t7j). The plurality of rotation angle gears (t7j) are arranged for the 460 type at a center angle of 8 degrees between each gear (t7j) at a center of rotation of the rotation angle gear. The plurality of rotation angle gears (t7j) are arranged for the 500 type at a center angle of 10 degrees between each of the gears (t7j) at the center of rotation of the rotation angle of the gear. The plurality of rotation angle gears (t7j) are arranged for the 520 type at a center angle of rotation of each of the gears (t7j) at a center of rotation of the rotation angle of the rotation angle. The plurality of rotation angle gears (t7j) are arranged at a certain central angle between each of the gears (t7j) at a center of rotation of the rotation angle of the rotation angle and each of the rotation angles is engaged ( T7j) is a pit to match. The plurality of rotation angle gears (t7j) are engaged by the rotation angle The center of rotation is arranged at a certain central angle between each of the gears (t7j) and each of the rotation angles (t7j) is a rectangular pit which proves to be practical. A type is a pit with a length of 10 mm and a width of 5 mm. The flange (t2j) provided on the flat bar (t2) is a flange punched out on the flat steel of the flat bar, for example, punched out on a spring flat steel 65Mn of a flat bar.

A flexible three-wheeled lawn mower is required on the narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously raised, and needs to be manually adjusted several times before and after, so the present invention has a front single wheel and a rear The two-wheeled lawn mower with two poles moving up and down synchronously has been born to solve the world problem of three-wheeled lawn mower without the simultaneous adjustment of the front single wheel and the rear double wheel. The three-wheeled lawn mower with the front single wheel and the rear double wheel synchronously moving up and down with one pole is characterized in that the front single wheel height adjuster and the rear double wheel wheel are connected by the heightening long pole (224). The upper single wheel height adjuster is arranged above the front single wheel (t1), and the front single wheel height adjuster comprises an L type lever (226) and an inverted T type up and down moving height adjustment frame (225 The left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) are provided with a horizontal long groove (225a), and the fulcrum shaft (226c) of the L-shaped lever (226) is disposed at On the front wheel branch pipe, the output end axis (226a) of the L-shaped lever (226) is laterally movably inserted into the left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) to have a horizontal direction In the through slot of the long slot (225a), the force receiving end of the L-shaped lever (226) is connected to the heightening long rod (224) to connect the front single wheel height adjuster and the rear double wheel height adjuster The rear double wheel height adjuster includes a total rear height adjustment handle (224a) and a left and right rear height adjustment L type lever (224c), and the rear double wheel height adjuster includes a total rear height adjustment handle (224a) ) and the rear right height L-shaped bar on the right side of each of the left and right sides The rods (224c) are connected, and the right rear height-adjusting L-shaped levers (224c) of the left and right sides are symmetrically rigidly connected to the left side of the left and right by traversing the rear height adjustment shaft of the lawn mower. a rearwardly elevated L-shaped lever (224c), the left rearwardly-adjustable L-shaped lever (224c) of the left and right ones being coupled to the raised height mast (224); The fulcrum of the L-shaped lever (224c) is coincident with the rear axle axis of the lawn mower, and the rearward output end of the left and right L-shaped levers (224c) and the axle of the rear double wheel (227) Coincident; the rear double-wheel height adjuster includes a plurality of gear positions on the body of the lawn mower including the side of the total rear height adjustment handle (224a); the inverted T-type up and down moving height adjustment frame (225) The lower side of the rectangular frame is connected to the wheel carrier (t7), and the front wheel transverse axis (t4) penetrated on the wheel frame (t7) is provided with a rolling front single wheel (t1); When the height adjustment lever (224) of the wheel height adjuster and the rear double wheel height adjuster is turned up, the force receiving end of the L-shaped lever (226) is connected to the height adjustment long rod (224), the L The output end shaft (226a) of the type lever (226) is laterally movably inserted into the Moving in the through-hole groove of the horizontal long groove (225a) provided on the left and right sides of the rectangular frame of the inverted T-type up-and-down moving height adjustment frame (225) and pushing the rectangular frame to move The rectangular frame of the T-shaped up-and-down moving height adjustment frame (225) moves up and down along the vertical axis above the rectangular frame of the inverted T-shaped up-and-down moving height adjustment frame (225) to realize the wheel relative to the chassis of the lawn mower. The height from the ground is varied and increased to make the mowing height variable.

The invention is advantageous in that three wheels are used to eliminate one wheel of a conventional four-wheel mower, making turning and reversing more flexible. Saves one round of cost. Enhanced anti-collision insurance and braking effect, mowing and grass selection, and larger activity areas. A flexible three-wheeled lawn mower is required on the narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously raised, and needs to be manually adjusted several times before and after. The present invention has a front single wheel and a rear double. The wheel uses a three-wheeled lawn mower that moves up and down synchronously to solve the problem of the world of three-wheeled lawn mowers without the simultaneous adjustment of the front single wheel and the rear double wheel.

The three-wheeled lawn mower with a synchronous parallel link height adjustment of the front single wheel and the rear double wheel is continuously improved, and the fourth stage of the height adjustment long rod (224) is a length of rod is connected to the end of the L-shaped lever (226)

The advantage of the present invention is that only three wheels are used, eliminating one wheel of a typical four-wheel mower, making cornering and reversing more flexible. Saves one round of cost. Enhanced anti-collision insurance and braking effect, mowing and grass selection, and larger activity areas. A flexible three-wheeled lawn mower is required on the narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously raised, and needs to be manually adjusted several times before and after, so the present invention has a front single wheel and a rear The three-wheeled lawn mower with two parallel synchronous connecting rods was created in order to solve the world problem of three-wheeled lawn mowers without the simultaneous adjustment of the front single wheel and the rear double wheel. The three-wheeled lawn mower with the front single wheel and the rear double wheel adjusted by a synchronous parallel link is characterized in that the front single wheel height adjuster and the rear double wheel are connected by the heightening long pole (224). a height adjuster; the front single wheel height adjuster is mounted above the front single wheel (t1); the force end of the L-shaped lever (226) is connected to the height adjustment long rod (224) for connecting the previous order a wheel height adjuster and a rear two wheel height adjuster; the front single wheel height adjuster has a parallelogram height adjustment structure with parallel links, and the four vertices of the parallelogram height adjustment structure are set on the lawn mower chassis a first pin shaft (228c) on the connected front wheel branch pipe, a second pin shaft disposed on the front wheel branch pipe connected to the lawn mower chassis, and a fulcrum shaft (226c) of the L-shaped lever (226) a third pin (228a) at an upper portion of the wheel frame (t7), a fourth pin shaft disposed at an upper portion of the wheel frame (t7), which coincides with an output end axis (226a) of the L-shaped lever (226); The first pin shaft (228c) to the second pin shaft constitute an upper horizontal side of the parallelogram height adjustment structure, and the third pin shaft (228a) to the fourth pin shaft constitute the parallelogram height adjustment Lower level of structure The distance from the first pin shaft (228c) to the second pin shaft is equal to the distance from the third pin shaft (228a) to the fourth pin shaft, and the upper horizontal edge of the parallelogram height adjustment structure The lower horizontal sides of the parallelogram height adjustment structure are parallel and equal, and the front parallel link of the parallelogram height adjustment structure is movably coupled to the second pin shaft which coincides with the fulcrum shaft of the L-shaped lever (226) (226c And the fourth pin coincides with an output end axis (226a) of the L-shaped lever (226), the rear parallel link of the parallelogram height adjustment structure is movably coupled to the first pin shaft (228c) And the third pin (228a); the parallel parallel link of the parallelogram height adjustment structure and the rear parallel link of the parallelogram height adjustment structure are both active and always parallel, when When the front parallel link and the rear parallel link move and rotate the angle, the distance between the upper horizontal side of the parallelogram height increasing structure and the vertical direction of the lower horizontal side of the parallelogram height increasing structure is changed. In the three-wheel lawn mower, many improvements have been made, and the battery is set up, and the rewinding device is provided. The ingenious and multi-damping can solve the worldwide problem that the reel is sometimes malfunctioning; the new collision retraction triggers the limit anti-collision function and strengthens The counterweight is used to protect the grass. The slope is safely tilted at a distance of 16.7 degrees. The weight is adjusted in the front of the machine to make the mower front and up to the standard. The anti-collision security and the relaxation brake can ensure the brakes and help the grass to solve the problem. Sometimes it contains the hard object of steel and occasionally hurts the knife or the problem of overturning the mower; adding the battery and retracting and retracting the reel freely expands the mowing range; the function of the wave brake is a Innovatively, the brakes are also equipped with axial shafts that are gradually raised by the function of the friction block. The new concept of the brake function of the invention function wave disk to change the swell brake is the relaxation brake, and the intermittent pulsation and the energy is released. Initiative; use the center cable to pull the turning rod with the labyrinth to make the reel line, thus breaking the history that the grass head can not be used for the lawn mower, and the special-shaped multi-groove nylon thread is also beneficial for cutting grass sharpness and energy saving and noise reduction; And because of the use of a kind of The winding device of the damping mechanism is more reliable and complementary, that is, the volume of the centrifugal slow retracting device, the side piston damping device, the position lock and the ball position lock, the reverse resistance mechanism, and the tube angle damper mechanism complement each other. The wire cutter greatly increases the mowing range of the conventional wire and wireless three-wheel electric lawn mower.

A flexible three-wheeled lawn mower is required on the narrow lawn surrounding the trees, but the three-wheeled lawn mower does not have the front single wheel and the rear double wheel synchronously raised, and needs to be manually adjusted several times before and after, so the present invention has a front single wheel and a rear A two-wheeled lawn mower with two parallel-rotating parallel links was created. The highlight is to connect the front single wheel height adjuster and the rear double wheel height adjuster with the heightening long rod (224). The improved three-wheel lawn mower with the first parallel wheel and the rear double wheel with one synchronous parallel connecting rod is improved, which mainly eliminates the use of the first single wheel and the rear double wheel with one pole synchronously moving up and down. The vertical T-shaped up and down movement of the important part of the lawn mower moves the through-hole groove of the horizontal long groove (225a) provided on the left and right sides of the rectangular frame of the height adjustment frame (225) to simplify the structure; the parallelogram The upper horizontal edge and the lower horizontal edge of the heightening structure are parallel and equal, and the front parallel link and the rear parallel link are both active and always parallel, and the upper horizontal edge and the lower horizontal edge are rotated when the angle is rotated. The distance in the vertical direction changes and is increased.

According to the preferred embodiment of the present invention, various changes and modifications can be made by those skilled in the art without departing from the scope of the present invention. It is obvious to those skilled in the art that there are many variations of equivalent technology, but the modifications are still within the scope of the patent protection without departing from the spirit of the claims.

Claims

A three-wheeled lawn mower with a front parallel wheel and a rear double wheel adjusted by a synchronous parallel link, characterized in that it is connected to the front single wheel height adjuster and the rear double wheel height adjuster by the height adjustment long rod (224) The front single wheel height adjuster is disposed above the front single wheel (t1), and the front single wheel height adjuster comprises a parallelogram height adjustment structure with parallel links, the parallelogram height adjustment The four apexes of the structure are a first pin (228c) disposed on the front wheel branch connected to the lawn mower chassis, and a second pin disposed on the front wheel branch connected to the lawn mower chassis. a fulcrum shaft (226c) of the type lever (226), a third pin shaft (228a) provided at an upper portion of the wheel frame (t7), and a fourth pin shaft provided at an upper portion of the wheel frame (t7), which coincide with the L An output end shaft (226a) of the type lever (226); the first pin shaft (228c) to the second pin shaft constitute an upper horizontal side of the parallelogram height adjustment structure, and the third pin shaft (228a) a fourth pin to a lower horizontal side of the parallelogram height adjustment structure, a distance from the first pin shaft (228c) to the second pin shaft and the third pin shaft (228a) to the fourth pin shaft Equal distance The upper horizontal edge of the parallelogram height adjustment structure is parallel and equal to the lower horizontal edge of the parallelogram height adjustment structure, and the front parallel link of the parallelogram height adjustment structure is movably coupled to the second pin shaft a fulcrum shaft (226c) coincident with the L-shaped lever (226) and the fourth pin shaft coincide with an output end axis (226a) of the L-shaped lever (226), the rear parallel of the parallelogram height-adjusting structure a connecting rod is movably coupled to the first pin shaft (228c) and the third pin shaft (228a); the parallel parallel connecting rod of the parallelogram height adjusting structure and the rear parallel connecting rod of the parallelogram height adjusting structure are both Is active and always parallel, when the front parallel link and the rear parallel link move and rotate the angle, the upper horizontal edge of the parallelogram height adjustment structure and the parallelogram height adjustment structure are The vertical direction of the horizontal edge is changed to be increased; the front single wheel height adjuster includes a parallelogram-shaped L-shaped lever (226) with parallel links and the heightening long rod (224) Connected; the fulcrum shaft (226c) of the L-shaped lever (226) is disposed on the front wheel branch The output end shaft (226a) of the L-shaped lever (226) coincides with a fourth shaft provided on the wheel carrier (t7) and is connected to the wheel carrier (t7), and the wheel carrier (t7) is provided with The third pin shaft (228a) is provided with a rolling front single wheel (t1) on the front wheel transverse axis (t4) penetrated on the wheel frame (t7); the L-shaped lever (226) is subjected to a force end is connected to the height adjustment rod (224) for connecting the front single wheel height adjuster and the rear double wheel height adjuster; the rear double wheel height adjuster includes a total rear height adjustment handle (224a) and left and right Each of the rear height-adjusting L-shaped levers (224c), the rear two-wheel height adjuster including a total rear height-adjusting handle (224a) is coupled to the right-hand rear right-adjusting L-shaped lever (224c) of the left and right sides, The right rear height-adjusting L-shaped lever (224c) of each of the left and right sides is symmetrically rigidly connected to the left rear of the left and right by the cross-height shaft of the lawn mower. a lever (224c), the left rear height-adjusting L-shaped lever (224c) of the left and right ones is connected to the height-adjusting long rod (224); the left and right ones are rear-adjusted L-type levers ( The fulcrum of 224c) coincides with the axis of the rear axle of the lawn mower, The rear output end shaft of the high L-shaped lever (224c) coincides with the axle of the rear double wheel (227); the rear double-wheel height adjuster includes the body of the lawn mower on the side of the total rear height adjustment handle (224a) There are multiple gear positions on the front; when the front wheel single height adjuster and the rear double wheel are connected
The three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the height-adjusting long rod (224) is composed of a first-stage rod, The second segment rod, the third segment rod and the fourth segment rod are composed of a total of four segments.
A three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the fourth section of the heightening long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226).
A three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the fourth section of the heightening long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226) by a circular pin.
A three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the fourth section of the heightening long rod (224) is A length of rod is connected to the force receiving end of the L-shaped lever (226) by a circular pin having a sleeve.
A three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the fourth section of the heightening long rod (224) is The one pole and the third pole are horizontal poles that are parallel to each other in space.
A three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the fourth section of the heightening long rod (224) is The four-section lever is connected to the left rear height-adjusting L-shaped lever (224c).
The three-wheeled lawn mower with a front single wheel and a rear double wheel synchronously moving up and down with a rod according to claim 1, wherein the first section of the four-row rod of the heightening long rod (224) is The projection of the space between the rod and the second rod at the ground plane is 135 degrees.
The three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the heightening long rod (224) is the third of the four-row rod The projection angle between the segment rod and the fourth segment rod is 135 degrees on the left side of the lawn mower.
The three-wheeled lawn mower with a single parallel wheel and a rear double-wheel alignment with a parallel parallel link according to claim 1, wherein the height-adjusting long rod (224) is composed of a first-stage rod, The second section, the third section, and the fourth section of the rod are composed of a rectangular section of flat steel.