CN107172958B

CN107172958B - Lawn mower with left door plate, right door plate and retractable side grass discharge cover

Info

Publication number: CN107172958B
Application number: CN201710513405.9A
Authority: CN
Inventors: 苏克
Original assignee: Ningbo Daye Garden Equipment Co Ltd
Current assignee: Ningbo Daye Garden Equipment Co Ltd
Priority date: 2017-06-22
Filing date: 2017-06-22
Publication date: 2019-12-17
Anticipated expiration: 2037-06-22
Also published as: CN107172958A

Abstract

The lawn mower is provided with a left door panel, a right door panel and a retractable side grass discharging cover, wherein the left and right sides of the side grass discharging opening are provided with the left door panel and the right door panel with vertical rotating shafts; a folding telescopic top 35j and a folding telescopic soft belt 35f are arranged above the side grass discharge port; the snap fastener 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring; when the side grass discharging port 29 is closed, the left door panel is closed firstly, the right door panel covers the left door panel to be closed in a double-safety mode, and the folding retractable top 35j and the folding retractable soft belt 35f cover the right door panel and the left door panel to close the side grass discharging port in a triple-safety mode; when the side grass discharging is needed, the folding retractable top 35j and the folding retractable soft belt 35f are extended to be used as the side grass discharging cover, and the opened right door panel and the opened left door panel are just used as the left guard plate and the right guard plate of the side grass discharging cover. The benefits are self-evident.

Description

Lawn mower with left door plate, right door plate and retractable side grass discharge cover

Technical Field

The invention relates to a mower for trimming lawns in courtyards, parks, places beside roads, sports and the like, which is mainly improved to add safety circuit protection measures to manufacture a mower which is beneficial to mowing, reducing noise, protecting environment and being safe, and on the basis of a mower with the safety circuit protection measures and a mower which is continuously improved and has noise reduction and is provided with a common belt drive oblique double-row grass cutting wide mower without a tension pulley, the mower is suitable for ISO5395-2/Amd.2 newly issued and implemented in 2017: 2017(E), PART 2: 4.5.2, b, while again continuously improving several different well established solutions: or a lawn mower with a manual locking device to prevent the side grass discharge cover from being opened by mistake; or a lawn mower with a left door panel, a right door panel and a retractable side grass discharging cover; or sliding the door plate to the left and right guide rails and using a side grass discharging cover; or a lawn mower with linkage locking to prevent the uncovering of the side grass discharge cover by mistake; in different seasons.

Background

Lawn mowers are widely used to mow grass in a manner selected by one's preference. Due to the poor maneuverability of the hand-pushed mower and the narrow cutting width at the front of the mower during mowing in practice, repeated cutting and missed cutting often occur, and the re-cutting is also carried out, so that the operator is hard to walk to mow. When the riding mower is used, the riding mower has a different feeling of sitting than standing but has a loud noise. If the person breaks away from the seat, the original 3 seconds of protection are carried out; but the recipe is 3 m/s, and running 9 m is still dangerous.

Mufflers are widely used as muffling devices for internal combustion engines, particularly small gasoline engines, and are mounted on exhaust ports of cylinder heads to reduce noise during operation of the engines. Various countries around the world have associated limits for noise in various types of moving vehicles and lawn mowers, and exhaust mufflers are such devices that are designed to reduce exhaust noise. The performance evaluation of the silencer mainly has the indexes of acoustic performance, aerodynamic performance, structural performance and the like. A considerable part of the internal combustion engine belongs to a pulsating low-frequency noise source, and a reactive or impedance complex and a micropore plate silencer are mostly adopted. The common silencer of the internal combustion engine, particularly the silencer used for a small gasoline engine, is mostly a three-cavity silencer, and has limited silencing effect; and the outside needs to be provided with a larger protective outer cover, but the outer cover does not have the noise elimination effect. Moreover, the temperature of the shell is high, which causes the hair to be hot and affects the safety. If the silencing groove is added, the improvement is achieved. The method aims to solve the problem of worldwide big difficulty and makes a talk about how easy. How to further improve the products is conjectured that the inventor is used as the perennial experience of high-work sensor ENGINEER relating to manufacturing abroad, particularly in Switzerland, the invention is developed to be expected to make the products to be one floor higher, just as spring silkworms are inexhaustible, the perfection of the invention pursued by human is endless, and whether noise reduction and elimination can be realized or not, the invention is produced.

Prosthetic foot protection is described in the standards STD.BSI EN 836-ENGL 1997 and GB 4706.78-2005/IEC 60335-2-77: 2002 have related requirements. The mowing height of most mowers is adjustable in multiple steps, which requires strict safety regulations for the feet of pedestrians to operate. This is usually done for a prosthetic foot test. However, the foot prosthesis test needs more testing positions every day, and the number of covered products is too small. So that if there are already delivered mowers and the individual is not sure that the foot is not at all, the mower order is totally affected. The idea behind the improvement is often to raise the mower blade a few millimeters above the chassis. However, because the cutting knife is a thin steel plate which is formed by partially bending a slender strip, due to the tolerance, the form and position tolerance and the assembly accumulated error, the knife tips at two ends are difficult to ensure not to be higher or lower on a circumferential plane in the large-scale practical production; in case of accident, it is difficult to avoid, but it is also necessary to ensure that there is no safety problem for all the stations. The side discharge of the lawn mower is convenient for grass discharge, but the side grass discharge cover needs to be additionally collected and needs to be searched and installed when in use; moreover, because the grass cutter is temporarily and quickly hung on the hook, the grass cutter is often thrown away or knocked down during mowing, and a dangerous mowing knife in a grass discharging port is seen; various inventive concepts linger like ghost: if the thick and soft foam plastic is used to wrap the grass cutting table and the grass cutter at multiple positions, the effects of security protection and noise reduction can be expected, and the consideration is really given. And the safety protection measures are adopted more and more safely.

In order to avoid the cutting missing phenomenon caused by the adjacent gaps of the two cutters, the two cutters of the original riding type mower are usually arranged in front of each other. Referring to fig. 23, which is a schematic diagram of the transmission of the two front and rear blades of the existing riding mower, in the figure, 23a is a pulley on the shaft of the first blade, 23b is a pulley on the shaft of the second blade, and 11 is a pulley of the engine. The long strips of the two cutters are mutually perpendicular and reversely rotated so as not to interfere with each other; the double-sided V-shaped belt and the three tension wheels are used, and the main defects are that the front and the back of a cutting disc are enlarged due to the fact that the front and the back of a cutter are arranged, the front and the back wheel distances are enlarged, the whole machine is lengthened, the turning radius of the machine is enlarged, the longitudinal potential stability coefficient is poor, and the cost is increased, which are not desirable. Although two knives of the other prior riding mower are not in tandem, referring to fig. 24, because the two knives rotate reversely so as not to interfere with each other, a double-sided synchronous belt is used, and two synchronous tension wheels are also used, so that the cost is increased. If no tension pulley is arranged and the common belt is used for driving, the cost can be reduced; but without tensioning, the belt is too loose to be used well unless the primary and secondary pulley spacing is further shortened substantially; the double mowing knives inevitably have a re-cutting rate to prevent cutting leakage, and the distance between the multi-purpose double mowing knives is smaller than the diameter of the knife; therefore, the double mowing knives are required to rotate reversely, and are required to be staggered to have a certain phase, so that the mutual rotating speed of the double mowing knives is required to be constant, and a synchronous toothed belt is required to be used; but the problems are that the tensioning structure is complex, the cost of the synchronous cog belt and the wheels is increased, and the wide rear row grass and the wide side row grass cannot be simultaneously arranged due to the reverse rotation of the double grass cutters, so that a four-wheel lawn mower with two rear grass outlet ports or a lawn mower with a manual locking function for preventing the side row grass cover from being opened by mistake is objectively needed in the market; or a lawn mower with a left door panel, a right door panel and a retractable side grass discharging cover; or sliding the door plate to the left and right guide rails and using a side grass discharging cover; or the lawn mower with the linkage locking function for preventing the operation from being mistakenly carried out and uncovering the side grass discharge cover is disclosed, so as to meet the international new safety regulations in 2017 and be beneficial to product export. The product is expected to be arranged on the first floor under the push of a plurality of improvements, the innovative conception of the invention is like ghost which lingers for a long time, and the invention can be worried and happened by the experience of SENI. The world-wide problem is solved, and the innovative thought is accumulated in the world: the noise reduction, the noise elimination and the grass winding prevention are easy to do, are easy to appeal and describe, try to invent the invention and leave the name behind, and are chatted as a brick throwing and leading jade bar.

Disclosure of Invention

The invention relates to a mower for trimming lawns in courtyards, parks, roadside and sports places, which is mainly improved to add a safety circuit protection measure, so that the comprehensive effect is favorable for mowing, comfortable operation, stepless speed change, noise reduction, environmental protection and safety, and the cost can be reduced; but without tensioning, the belt is too loose to be used well unless the primary and secondary pulley spacing is further shortened substantially; the double mowing knives inevitably have a re-cutting rate to prevent cutting leakage, and the distance between the multi-purpose double mowing knives is smaller than the diameter of the knife; therefore, the double mowing knives are required to rotate reversely, and are required to be staggered to have a certain phase, so that the mutual rotating speed of the double mowing knives is required to be constant, and a synchronous toothed belt is required to be used; however, the problems are that the tensioning structure is complex, the cost of the synchronous cog belt and the wheel is increased, and the situation that wide rear grass rows and wide side grass rows cannot be arranged simultaneously due to the fact that the double mowing knives rotate reversely is not more undesirable, and the market objectively needs a four-wheel lawn mower with two rear grass outlet ports to be available, so that the grass cannot be blocked.

The invention adopts the technical scheme that a four-wheel lawn mower with two rear grass outlet ports is innovated by taking a mower with a safety circuit protection measure and a mower with noise reduction safety protection as reference, wherein the mower is continuously improved and perfected, and the mower has the common belt drive inclined double-row wide grass mower without a tension pulley as reference, so that the four-wheel lawn mower is free from grass blockage.

A riding mower with safety circuit protection measures is a riding mower with noise reduction measures and hydraulic stepless speed change additionally provided with the safety circuit protection measures, and comprises the safety circuit protection measures, a steerable front axle connected with two front wheels, a drivable rear axle with hydraulic stepless speed change connected with two rear wheels, a frame with double bumpers above four wheels, a mowing device with noise reduction below the frame, an engine with a noise elimination groove, a hood (1) with noise reduction and an air filter screen (4) with noise elimination, a saddle with noise reduction, a grass collection box with noise reduction, and personal protection accessories of a riding operator, wherein the engine, the hood, the ear shield and the sound prevention helmet are connected with the front wheels; the method is characterized in that: two vehicle lamps 3 are arranged at the joint of the noise-reducing hood 1 and the noise-eliminating air filter screen 4, so that the attention needs to be paid to neither too much sound leakage of a bonding seam nor temperature rise, and if the lamps are LED light-emitting tubes, the temperature rise is not a problem; to speak of a lamp, to speak of a circuit; for safety, a safety circuit protection measure is additionally arranged on the riding mower, the safety circuit mainly comprises a single-board computer and instrument plug-in (C4), an engine plug-in (C1), an expansion plug-in (C5), an ignition switch (C2), a storage battery (B1), a direct current relay (C3), a power output PTO switch (C6), an electromagnetic clutch (C7), a Starter (ST), a hanging box buzzer (U1), a full grass buzzer (U2), a first fuse (F1), a second fuse (F2), a headlamp switch (S0), a left headlamp (L1), a right headlamp (L2), a parking switch (S1), an N-gear switch (S2), a seat switch (S3), a hanging grass box switch (S4) and a full grass alarm switch (S5), and the left headlamp (L1) and the right headlamp (L2) are respectively formed by connecting a plurality of light-emitting diodes in series, such as a plurality of light-emitting diodes in series, a resistor can also be added; or each consisting of a plurality of leds connected in series-parallel, for example 4 series-4, i.e. each consisting of 16 groups, and preferably arranged along an arc sector, in order to widen the viewing angle; the seat switch (S3) is newly designed in a non-conventional way; because of the original seat switch, although the seat is disconnected when not seated, the seat switch can be started only when the driver sits down; if the driver leaves the seat, the one-board computer delays flameout control for 3-5 seconds, which sounds as safe, but not; the original seat switch is a long-standing and difficult problem which is difficult to solve, because in actual operation, the grassland is bumpy, the buttocks are shaken, the seat is up and down, and the seat switch is suddenly turned off, especially when a driver falls off carelessly, a single machine with 3-5 seconds delays to turn off the fire control, and the fire is turned off after 3-5 seconds; the traveling speed of the mower is 3.6-15 km/h, even if the lowest speed is taken for one meter per second, the mower can be stopped after being flushed by 3-5 meters or more than ten meters, and people can not easily imagine what the fallen hands and feet or obstacles mean; although it has been conventional to employ 3-5 seconds of stand-alone delayed extinction control in the usual situation, in order to eliminate the potential for unsafe situations, there is a need for a new, unconventional design of a reliable and less expensive seat switch that must be safe, cannot be ignored when the seat is shaken up and down to a great extent, and will be immediately turned off within 0.1 seconds when it is really turned off; the seat switch provided by the invention solves the problem of old difficulty; referring to fig. 28, the seat switch (S3) is mainly composed of a long slide bar (S3-1) provided under a seat (9), and a carbon brush (S3-2) provided on a guide rail associated with the long slide bar, and a seat spring (9-2), and the illustrated position is a schematic sectional view when the seat switch is just turned off; because the long slide bar (S3-1) is arranged under the seat (9) and is inserted into the guide rail and is matched with the carbon brush, the long slide bar (S3-1) follows the seat (9) to be inserted and pulled out up and down; the long slide bar S3-1 is in the shape of a long rod, and if the cross section is curved, such as circular, or tubular, the end face of the carbon brush (S3-2) matching the curved cross section of the long slide bar should also be curved; if the section of the long sliding rod is square, such as square, polygon, angle iron and channel steel, the end face of the carbon brush (S3-2) matched with the flat section of the long sliding rod is also plane, so that the matched part has good conductive contact; note that the middle of the long sliding rod (S3-1) is a conductor, such as copper, and the two ends are insulators, such as plastic, and the conductor is provided with a soft lead to be connected with a terminal of the switch (S3); the carbon brush is also provided with a soft lead which is connected with the other connecting terminal of the switch (S3); a return spring is arranged behind the carbon brush; the long slide bar (S3-1) is along with the seat (9) and can be reset by a seat spring (9-2) arranged under the seat (9), of course, an auxiliary reset spring can be arranged at the lower end of the long slide bar; therefore, when a person sits on the seat, although the insertion and extraction range of the long rod-shaped conductor of the long slide rod (S3-1) is large, the long rod-shaped conductor and the carbon brush are always in good contact; when a person leaves the seat, the long rod-shaped conductor of the long sliding rod (S3-1) is immediately pulled up under the full force of the seat spring (9-2), and when the amplitude of the long rod-shaped conductor is larger than the swaying amplitude area where the person sits, the long rod-shaped conductor is disconnected with the carbon brush, and only the insulating part of the long sliding rod is contacted with the carbon brush; the joint of the long rod-shaped conductor of the long slide bar (S3-1) and the insulating part at the lower part of the long slide bar cannot have steps or unevenness, and machining such as turning and milling or other machining methods is preferably carried out after forming so as to facilitate sliding without clamping; in a flameout state, M and G of an ignition switch (C2) are switched on, a main circuit is short-circuited, and a single-board computer and a No. 2 black line of an instrument plug (C4) and an engine plug (C1) are short-circuited, so that the gasoline engine is flameout; in the running state, B and L of an ignition switch (C2) are switched on, a main circuit is switched on, a single board computer and an instrument plug (C4) are electrified through a No. 5 blue line, a first end of an engine plug (C1) inputs a high level, a solenoid valve of a carburetor arranged in the engine is actuated, and an accelerator switch is opened; when the accelerator gear is in the N gear position, the N gear switch (S2) is turned off, and the instrument display lamp is on; in the parking state, the parking switch (S1) is closed, and the display lamp N on the instrument is on; when the seat is not seated, the seat switch (S3) is turned off, and the display lamp P on the instrument is turned on; if the grass collecting box is not hung, the switch (S4) of the grass hanging collecting box is switched off, the warning light of the grass collecting box is on, and meanwhile, the buzzer (U1) gives out continuous warning sound; when the voltage of the storage battery (B1) is insufficient, the voltage for connecting the main circuit is too low, and the storage battery indicator lamp is turned on; when the headlight switch is closed (S0), the headlight is on; in a starting state, B, L and S of an ignition switch (C2) are switched on, a main circuit is switched on, and running functions can be realized; the dull red line of the S end is accessed to the No. 4 line end of a single board computer and an instrument plug-in (C4), receives a high level signal of the No. 4 line end through the control of the single board computer, controls the output high level signal of the No. 3 line end, is accessed to a direct current relay, leads the direct current relay (C3) to be conducted, leads a power supply to flow into a Starter (ST) through the direct current relay, the Starter (ST) is a direct current motor arranged on an engine, and drags a main shaft of the engine to rotate through a transmission mechanism, thus leading a gasoline engine to be started; the starting control is to judge whether the following 5 starting conditions are met by the single board computer: 1. the accelerator is in an N-gear state, and the N-gear switch is disconnected, so that a No. 7 line end cannot form a loop through the N-gear switch; 2. the left end of a power output PTO switch (C6) is closed, because the PTO switch is always open, one group of switches are normally closed, the position on the graph is the state that the left end of the switch (C6) is closed and the right end is broken, at the moment, a cutting knife is separated and does not work, and a blue line at the 11-line end forms a loop through PTO output of the left-end cutting knife switch (C6); 3. when the seat is seated, the seat switch is closed, and the No. 8 line end orange line is output through the seat switch to form a loop; 4. when the vehicle is parked, the parking switch S1 is closed, and the purple line at the No. 6 line end is output through the parking switch to form a loop; 5. when the grass collecting box or the rear cover plate is hung, the switch (S4) of the grass hanging and collecting box is pressed down, and the dark red line at the No. 9 line end forms a loop through the switch of the grass hanging and collecting box; therefore, when the ignition switch is in a starting state, the dark red line at the No. 4 line end inputs a high level signal to the instrument plug-in, whether the requirements of the above 5 signals are met or not is judged by the single board computer, if yes, the purple line at the No. 3 line end outputs a high level, so that the direct current relay (C3) is conducted, and the starter works; flameout control: flameout control of the vehicle after running; there were 5 signals or 5 misfire signals; the signal 1 is a parking switch, when the parking switch is not in a parking state, the parking switch is turned OFF, the No. 6 purple line cannot form a loop for outputting, and otherwise, the parking state is not; the signal 2 is an N-gear switch, when the accelerator gear is not in the N-gear position, the N-gear switch is turned ON, the gray line at the No. 7 wire end forms a loop for outputting, and vice versa in the N-gear position; a signal 3, namely a seat switch (S3) is switched off when the seat is not seated, the No. 8 line end orange line cannot form a loop output, and the seat is seated otherwise; a signal 4, a grass hanging and collecting box switch, if the grass hanging and collecting box switch (S4) is switched off in the state that the grass collecting box is not hung, a warning lamp of the grass collecting box is on, meanwhile, a buzzer U1 sends out continuous warning sound, a No. 9 dark red line end fails to form loop output, and the situation is not true when the grass collecting box or a rear cover plate is hung; signal 5, power output PTO switch (C6), because PTO switch is always on in one group of switches, and in one group of switches is normally closed, the position on the graph is the state that the left end of the switch (C6) is closed, at this moment, the cutter knife is separated and does not work, and the blue line of No. 11 line end forms a loop through PTO switch (C6) left end cutter switch PTO output; when the left end of the PTO switch (C6) is not closed and the right end is closed, the electromagnetic clutch (C7) is attracted, the cutting knife is combined, the blue line of the 11-line end passes through the PTO switch (C6) and the PTO output of the left-end cutting knife switch cannot form a loop, and at the moment, a cutting knife working display lamp on the instrument is on; the 5 misfire signals were: 1. in the 5 signals, when the PTO is started, the cutter is combined, and the seat is not seated, the engine is delayed for 3-5 seconds to shut down; 2. in the 5 signals, the grass collecting box or the rear cover plate is not hung, the warning lamp of the grass collecting box is on, meanwhile, the buzzer U1 gives out continuous warning sound, and the engine immediately stops; 3. in the 5 signals, when the vehicle is parked, the parking switch (S1) is closed, the left end of the PTO switch (C6) is not closed, when the right end is closed, the electromagnetic clutch (C7) is attracted, the cutting knife is combined, and the single board computer enables the engine to immediately shut down; 4. in the 5 signals, if the seat is not seated when the seat is not in the N gear position, the engine is stalled for 3-5 seconds; 5. in the 5 signals, when the accelerator gear is at the N gear position, the seat is not seated in the non-parking state, and the engine is flameout after 3-5 seconds of delay; when the vehicle meets one or more flameout signals, the single-board computer is used for judging the signals, and the relay is used for controlling, so that the black line at the No. 2 line end is in short circuit, even if the flameout line output of the engine plug-in C1 is grounded, the gasoline engine is flameout, and the delay time is realized through a single-board computer delay subprogram. Several controls are described below. Firstly, parking control is carried out, when a vehicle is parked, a parking switch (S1) is closed, a gear is located at an N gear position, a seat is not seated, the left end of a PTO switch is closed, the right end of the PTO switch is not closed, an electromagnetic clutch (C7) is not attracted, a cutter is not closed, a grass collecting box and a rear cover plate are hung, and an engine is still in an idling state. In the running control, the gear is not positioned at the N gear position under the non-parking state or the parking state caused by error operation sometimes, the seat is seated, the left end of the PTO switch is closed, the right end is not closed, the electromagnetic clutch (C7) is not attracted, the cutting knife is not closed, the grass collecting box and the rear cover plate are hung, and the engine is not flamed out; then, brake control is carried out, in the running state, the brake is stepped on, in the non-parking state, the gear is in the N-gear position, the seat is seated, the left end of the PTO switch is closed, the right end of the PTO switch is closed, the electromagnetic clutch (C7) is not closed, the cutting knife is not closed, the grass collecting box and the rear cover plate are hung, and the engine is still in the working state; in the following, the mowing control is performed, in the non-parking state, the gear is not in the N-gear position, or the gear is in the N-gear original place mowing state, the seat is seated, the left end of the PTO switch is not closed, the right end of the PTO switch is closed, the electromagnetic clutch (C7) is closed, the cutting knife is combined, the grass collecting box and the rear cover plate are hung, and the engine is still in the working state; finally, a full grass alarm system is described, when the grass collecting box is full of grass, the full grass alarm switch (S5) is pressed, a brown line at the 10-line end forms a loop through the full grass box alarm switch (S5), and the buzzer (U2) gives an alarm sound to obtain the expected safety effect.

The double-row wide mower with the double mowing knives and the inclined double mowing knives is driven by a common belt without a tensioning wheel and is characterized in that a power machine drives a belt for the double mowing knives (20) without the tensioning wheel, the belt is a V-belt (26) of the common belt, the power machine drives a driving belt wheel (28), the driving belt wheel (28) simultaneously drives a knife belt wheel (27) of the double mowing knives (20) by the V-belt (26), and the distance between the double mowing knives is not smaller than the diameter of the knife; the double mowing knives rotate in the same direction, the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives (20) by belts to be on the same straight line, and the driving belt wheels are obliquely arranged so as to have a re-cutting area without cutting leakage, the oblique arrangement is that the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives (20) by belts to be on the same straight line, and the connecting lines of the circle centers of the knife belt wheels on the same straight line and the axle lines of the front wheel and the rear wheel of the mower form an included angle beta of 15-45 degrees; and the cutterhead of the double mowing knives is provided with a side grass outlet (29) and a rear grass outlet (30).

The improved common belt-driven oblique double-row wide mower without the tensioning wheel is characterized in that the driving belt wheel drives the connecting lines of the circle centers of the cutter belt wheels of the double mowing knives (20) on the same straight line by using belts simultaneously, and the connecting lines of the circle centers of the cutter belt wheels on the same straight line and the front and rear wheel axes of the mower are provided with an included angle beta of 16-25 degrees.

The improved common belt-driven oblique double-row wide mower without the tensioning wheel is characterized in that the driving belt wheel drives the connecting lines of the circle centers of the cutter belt wheels of the double mowing knives (20) on the same straight line by using belts, and the connecting lines of the circle centers of the cutter belt wheels on the same straight line form an included angle beta of 18 degrees with the front and rear wheel axes of the mower.

The improved and improved common belt-driven oblique double-row wide mower with the double mowing knives and the double mowing knives is characterized in that the driving belt wheel drives the connecting lines of the centers of circles of the knife belt wheels of the double mowing knives (20) on the same straight line by using belts, and the connecting lines of the centers of the knife belt wheels on the same straight line form an included angle beta of 18.3 degrees with the front and rear wheel axes of the mower.

the improved common belt-driven oblique double-row wide mower without the tension wheel is characterized in that the section of a long sliding rod of a seat switch is in an arc shape with equiangular spirals, and the equiangular spirals have the characteristic of equal pressure angle positions.

The improved common belt drive inclined double-row wide mower without the tension pulley has the advantages that the horseshoe-shaped magnet with nano rare earth is arranged in the drive rear axle.

The improved common belt drive inclined double-row wide mower without the tension wheel has the advantages that the bracket of the frame with the double bumpers is the elastic NBR.

The improved common belt drive oblique double-row wide mower without the tension wheel has the advantages that the noise reduction hood is made of HDPE hollow blow molding products filled with sound absorption foam plastics.

The improved common belt without tension wheel drives the inclined double-row wide mower with double grass cutting knives and the muffling air filter screen is an aluminum screen.

The improved common belt drive oblique double-row wide mower without the tensioning wheel has the advantages that the flying wings of the mowing tools are provided with a plurality of wedges with hexagonal pyramid-shaped tops and micro through holes.

In the market, a plurality of four-wheel lawn mowers which are provided with two rear grass outlet openings or side grass discharge openings are objectively needed to be available, so that the grass can be put into the grass collecting bag without blocking. The common belt drive oblique double-row wide grass mower without the tensioning wheel has no tensioning wheel, does not need a tensioning structure and a synchronous cog belt, and can be simultaneously provided with wide rear grass rows and wide side grass rows. The distance between the double mowing knives is not less than the diameter of the knife; the double mowing knives rotate in the same direction, and the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives to be on the same straight line by using belts respectively and are obliquely arranged so as to have a re-cutting area without leakage; and the cutterhead of the double mowing knives is provided with a side grass outlet (29) and a rear grass outlet (30). Although a plurality of grass discharging and breaking anti-blocking devices are provided, the practical problem of no grass blocking is fundamentally solved only when the four-wheel lawn mower with two rear grass discharging outlets is available. The comprehensive effect is not only beneficial to mowing, comfortable operation, but also beneficial to noise reduction, environmental protection and safety, and is to reduce cost and revolutionarily change the conventional single grass outlet into two rear grass outlets, which is originally unexpected; the effect is obvious, the international approval and large orders are obtained, and various grass discharging, smashing and blockage preventing devices are omitted.

The four-wheel lawn mower is characterized in that the lawn mower is provided with two rear grass outlet ports, and the two rear grass outlet ports (33) are arranged on a channel from the grass cutting blade to a grass collecting bag of the grass collecting box one by one on the left and the right so that grass from the left grass cutting blade and the right grass cutting blade can pass through.

The four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are arranged on a channel of a grass collecting bag from the grass cutting blade to the grass collecting box in a left-right symmetrical mode respectively so that grass from the left grass cutting blade and the right grass cutting blade can pass through.

The four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are respectively arranged on a channel of a grass collecting bag from the grass cutting blade to a grass collecting box in a rectangular manner in a left-right symmetrical manner so as to facilitate the grass from the left grass cutting blade and the right grass cutting blade to pass through.

The four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are arranged on a channel of a grass collecting bag from the grass cutting blade to the grass collecting box in a trapezoidal manner in a left-right symmetrical manner so as to allow grass from the left grass cutting blade and the right grass cutting blade to pass through.

the four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are arranged on a channel from the grass cutting blade to a grass collecting bag of the grass collecting box in an inverted trapezoid manner, wherein the inverted trapezoid manner is left-right symmetrical, and the grass from the left grass cutting blade and the grass from the right grass cutting blade passes through the channel.

The four-wheel lawn mower with two rear grass outlet openings is characterized in that the two rear grass outlet openings arranged on the lawn mower are respectively provided with a door cover at the left and the right.

The four-wheel lawn mower with two rear grass outlet openings is characterized in that the two rear grass outlet openings arranged on the lawn mower are respectively provided with a door cover and a door cover torsion spring at the left and the right.

The four-wheel lawn mower with two rear grass outlet openings is characterized in that the two rear grass outlet openings arranged on the lawn mower are respectively provided with a door cover at the left and the right, and the door cover is provided with a door cover torsion spring and a gear.

The four-wheel lawn mower with two rear grass outlet ports is characterized in that a front-drive reducer (31) and a front-drive belt (32) are arranged on the lawn mower to drive front wheels.

The four-wheel lawn mower with two rear grass outlet ports is characterized in that four mutually meshed mowing disc gears (34) are arranged on the lawn mower to drive the left mowing knife and the right mowing knife.

The novel lawn mower with the linkage locking function and the function of preventing the accidental operation of the uncovering side grass discharge cover is characterized in that a mechanism which is provided with a flip cover and is used for preventing the accidental operation of the uncovering side grass discharge cover is arranged on the lawn mower, an upper hinge point M is arranged above a chassis of a side grass discharge outlet 29 arranged on the lawn mower, a lower hinge point G is arranged below the upper hinge point M arranged above the chassis of the side grass discharge outlet 29 arranged on the lawn mower and in the middle of the chassis of the side grass discharge outlet 29 arranged on the lawn mower, a sealing noise reduction sheet 35R is arranged on the side, close to the side grass discharge outlet 29 arranged on the chassis of the lawn mower when the side grass discharge cover 35 is closed, and at least two side protection sheets 35 are arranged on the reverse side of the side grass discharge outlet 29 arranged on the chassis of the lawn mower when the side grass discharge cover 35 is closed j, a near hinge point Y1 and a far hinge point S1 are arranged on the side grass discharge cover 35, the upper hinge point M is connected with the far hinge point S1 through a first rocker MS1, the lower hinge point G is connected with the near hinge point Y1 through a second rocker GY1, an adjusting operating lever H1 which is provided with a safety buckle and used for preventing the side grass discharge cover from being opened by accidental operation is movably extended out of the lower hinge point G and fixedly connected with a GY1 of the second rocker, and therefore a double-rocker mechanism which is provided with a flip cover and used for preventing the side grass discharge cover from being opened by accidental operation is arranged on the lawn mower; the side grass discharge cover 35 is provided with grass chopping blades 7c, and the grass chopping blades 7c are arranged on a plurality of small cutter heads which are driven to rotate and provided with rotating shafts, so as to be beneficial to grass chopping; the side grass discharge cover 35 is also provided with a plurality of wedges 7b to facilitate noise reduction; the wedges 7b are also provided with the tool tips of the grass chopping blades 7c to form a tool tip wedge array so as to reduce noise and chop grass.

The lawn mower with the manual locking function for preventing the accidental operation of uncovering the side grass discharge cover comprises a side grass discharge opening 29, a side grass discharge cover 35, a side grass discharge cover hook 35a, a side grass discharge cover shaft 35b, a side grass discharge cover spring 35c, a latch buckle 36, a latch buckle seat 36a, a latch buckle shaft 36b, a latch buckle spring 36c and a door cover 356, wherein the latch buckle seat 36a is arranged above the side grass discharge opening 29 of a chassis of the lawn mower, the side grass discharge cover shaft 35b is arranged on a double front buckle seat frame on the latch buckle seat 36a, the side grass discharge cover spring 35c is sleeved on the side grass discharge cover shaft 35b, a pressing clamp is formed by the side grass discharge cover shaft 35b and the side grass discharge cover spring 35c on the latch buckle seat 36a, and the side grass discharge opening 29 of the chassis of the lawn mower is pressed through the door cover 356 when the lawn is only mowed in the chassis without side grass discharge; when the side grass discharging is needed, the two side grass discharging cover hooks 35a of the side grass discharging cover 35 are hung at the two ends of the side grass discharging cover shaft 35b respectively, and the side grass discharging cover 35 is pressed through the door cover 356; the double-front buckling frame on the double-back buckling frame 36a is further provided with a double-back buckling frame at the back, the double-back buckling frame is provided with the buckling shaft 36b, the buckling shaft 36b is sleeved with the buckling spring 36c, the buckling shaft 36b is further sleeved with the buckling spring 36c, and the buckling shaft 36b is provided with the buckling shaft 36b, the buckling spring 36c sleeved on the buckling shaft 36b and the buckling spring 36b sleeved on the buckling shaft 36b form a second pressing clamp together, so that double clamping and self-locking are facilitated; the latch buckle 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring.

The lawn mower with the left door panel, the right door panel and the retractable side grass discharging cover is characterized in that a left door panel 357 with a vertical rotating shaft is arranged on the left side of a side grass discharging port 29 of a chassis of the lawn mower, and a right door panel 358 with a vertical rotating shaft is arranged on the right side of the side grass discharging port 29; a folding and drawing top 35j and a folding and drawing soft belt 35f are arranged above the side grass discharge port 29.

A lawn mower with a door panel sliding open along left and right guide rails and a side grass discharge cover is characterized in that the door panel moves along left and right door panel guide rails 29e to open and close side grass discharge openings 29 of a chassis of the lawn mower, and the left and right guide rails are provided with locking buckles 36.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the entire mower.

Fig. 2 is a schematic view of the complete mower with the outer casing removed.

fig. 3 is a side view schematic of the entire mower.

Fig. 4 is a schematic bottom view of the complete mower with the outer casing removed.

Fig. 5 is a side view of the height adjustment mechanism of the complete mower with the housing removed.

Fig. 6 is a side view schematic diagram of the shift position of the heightening mechanism.

Fig. 7 is a schematic view of the wedge (7 b).

Figure 8 is a schematic view of the S-shaped hook (17) of the grass harvesting box.

Fig. 9 is a schematic view of the toothed disc (8 a).

FIG. 10 is a schematic bottom view of the belt drive of the mower with the housing removed.

Fig. 11 is a schematic view of a vehicle head shell (1) with honeycomb wedges and sound damping and shock absorbing material.

Fig. 12 is a schematic view of a body shell (10c) with honeycomb wedges and sound deadening and vibration damping material.

Fig. 13 is a schematic cross-sectional view of the toothed disc (8 a).

Fig. 14 is a schematic view of a grass cutting blade (20).

Fig. 15 is a front view of the toothed disc (8 a).

Fig. 16 is a partially enlarged schematic view of the mowing knife (20).

Fig. 17 is a schematic view of a cut-away surface of wedge (7 b).

Fig. 18 is a schematic view of a muffler tank and a muffler including the muffler pipe (7) and the water tank (2).

Fig. 19 is a schematic view of the inner tube (7a) of the muffler pipe (7).

Fig. 20 is a front schematic view of the drivable rear axle (24) with half the housing removed.

Fig. 21 is a schematic front view of a cutting disc (18) with honeycomb wedges (7b) and sound damping and shock absorbing material (7 f).

FIG. 22 is a schematic view of a single-sided timing belt 23 for driving two knives in the same direction and provided with a tension pulley 23c.

Figure 23 is a schematic view of a double-sided V-belt with 3 tensioning wheels added to back-drive two knives in tandem.

FIG. 24 is a schematic diagram of a double-sided timing belt with 2 tensioning wheels for driving two knives in reverse.

FIG. 25 is a schematic view showing a recutting web B with the distance A between the centers of two rotating shafts, i.e., pulleys (23a, 23B), by the preferred method.

Fig. 26 is a schematic diagram illustrating the maximum mowing width B obtained by the preferred method when the two cutters are not in contact with each other.

Fig. 27 is a circuit schematic.

FIG. 28 is a schematic sectional view of a seat switch having a long slide bar S3-1 and a carbon brush S3-2 provided under the seat.

FIG. 29 is a schematic view of a common belt-driven inclined double-row wide mower without a tensioning wheel with double mowing knives.

FIG. 30 is a front schematic view of a common belt-driven inclined double-row wide mower without a tensioning wheel.

FIG. 31 is a schematic view of a lawnmower with a forward drive retarder (31) and a forward drive belt (32).

FIG. 32 is a schematic elevational view of a four-wheeled greens mower having two rear grass discharge outlets (33) at the same time.

FIG. 33 is a schematic view of a greens mower having four mower reel gears (34).

FIG. 34 is a schematic view of a manual locking anti-misuse operation uncovering side weed-ejecting cover.

FIG. 35 is yet another schematic view of a manual locking anti-misuse operation uncovering side weed-ejecting cover.

FIG. 36 is a front schematic view of a manual locking device for preventing inadvertent operation of the cover member.

Fig. 37 is a rear side schematic view of a manual locking device for preventing misuse of the means for opening the side grass discharge cover.

FIG. 38 is a left side schematic view of a manual locking device for preventing inadvertent operation of the cover for opening the side grass discharge flap.

FIG. 39 is a right side schematic view of the components of the manual locking prevention misuse manipulation of the uncovering side grass discharge cover.

FIG. 40 is a schematic view of the chassis with the uncovered side grass discharge cover being manually locked against inadvertent operation.

FIG. 41 is a schematic view of a manual locking to prevent inadvertent operation of the uncovering side grass discharge cover on the chassis.

FIG. 42 is a dynamic schematic view of a chassis with a manual locking against inadvertent operation of a uncovering side grass discharge cover.

FIG. 43 is a schematic view of a cover with left and right door panels and a foldable retractable top-opening side grass discharge cover.

FIG. 44 is a schematic view of a foldable retractable roof having left and right door panels and a foldable retractable roof with a side cover for removing grass.

FIG. 45 is a schematic view of the side grass discharge cover for sliding the left and right door panels to the left and right guide rails.

FIG. 46 is a schematic view of the mechanism of the greens mower with the interlock locking to prevent accidental operation of the uncovering side grass discharge cover.

Fig. 47 is a schematic view of a side row grass cover with an array of point wedges with grass chopping blades 7c and a plurality of small rotating cutterheads.

Fig. 48 is a schematic view of the side grass cover grass chopper 7c mounted on a small passive rotary cutter head having a rotary shaft.

As shown, in the figure:

1. Is a head cover; 2. is a water tank; 3. is a car light; 4. is a sound-deadening air filter screen; 6. are two front wheels; 6b, two rear wheels; 7. is a muffler pipe; 7a, an inner pipe of the silencing pipe; 7b is a wedge; 8. is a steering wheel; 8a, a fluted disc; 9. is a water tank; 10. is a noise-reducing grass collecting box; 10c. is a vehicle body; 11. is a main shaft and a belt pulley of the engine; 12. is a foot brake; 13. is a hand brake; 14. is a forward gear; 14b. is reverse gear; 15. is a height-adjusting handle; 16. is 2 hangers with pins arranged at the back of the frame; 17. is an S-shaped hook of the grass collecting box; 18. cutting a disc; 18a, front dead axle; 18b. is a front moving shaft; 18c. is a rear dead axle; 18d. is a rear moving shaft; 18h. is a steel wire rope; 18g. is a sector gear; 18f. is a pawl; 20. is a mowing knife; 20a is a wind wing cutting edge; 21. is the engine to knife drive belt; 22. a belt which is a pulley on a rotating shaft of the first plunger pump of the engine to the rear axle; 23. is a single-sided synchronous belt for driving two knives; 23a, a rotating shaft of the first knife, namely the center of the belt wheel; 23b. is the rotation axis of the second knife, i.e. the pulley center; A. the distance between the rotating shafts of the two cutters, namely the centers (23a, 23b) of the pulleys; B. is a recut swath B; D. the distance between two tool tips of the strip-shaped tool (20) is the diameter D; 23c. is a tensioner; 23d, a tensioning bracket provided with a tensioning wheel; bolt which is the fixing of the tension bracket; 23f. is an adjusting bolt; 23g, setting mule mother; 23h. is a fixed small adjusting bracket; 24. is a drivable rear axle with hydraulic stepless speed change; 24b, a clutch mechanism for connecting the hydraulic control valve group with the first plunger (24 b); 24c. a continuously variable transmission mechanism and a brake device which are a second plunger pump (24c) and a pilot-controlled valve group; 24d. is a speed change gear of the second plunger pump; 24e. is an intermediate gear; a star wheel of the planet wheel assembly is 24 h; 24g, a gearwheel; 24f. is an intermediate pinion; 24k, an oil inlet valve; 24j. is a permanent magnet; C4. is a single board computer and an instrument plug-in; C1. is an engine plug-in; C5. is an extension plug-in; C2. is an ignition switch; B1. is a storage battery; C3. is a direct current relay; C6. is a power take off PTO switch; C7. is an electromagnetic clutch; ST. is a starter; u1. is a hanging box buzzer; u2. is a full grass buzzer; F1. is the first insurance; F2. is the second insurance; s0. is a headlight switch; l1, a left headlamp; l2, a right headlamp; s1, a parking switch is arranged; s2, an N-gear switch is adopted; s3, a seat switch is arranged; s4, hanging a grass collecting box switch; s5, a full grass alarm switch is arranged; is a light emitting diode; 9. is a seat; s3-1, is a long slide bar; s3-2, a carbon brush; 9-2, is a seat spring; 26. a V-belt; 28. a driving pulley; 27. a knife belt wheel; beta, an included angle; 29. a side grass discharge port; 30. a rear grass discharge port; 31. a front-drive reducer; 32. a precursor tape; 33. two rear grass outlet ports; 34. four mower reel gears; 35. a side grass discharge cover; 35a, a side grass discharge cover hook; 35b, side grass discharging cover shafts; 35c, side grass discharge cover spring; 36. a card lock catch; a latch catch seat; 36b. a latch catch shaft; 36c, a snap lock catch spring; 356. a door cover; 357. a left door panel; 358. a right door panel; 35J, folding and drawing the top; 35f, folding and drawing the flexible belt; 29e, door panel left and right guide rails; and 7c, grass chopping blades.

Detailed Description

The technical scheme adopted is that the improved and improved schemes are continuously improved on the basis of a mower with safety circuit protection measures and a mower with safety protection and noise reduction which is continuously improved and improved on the basis of a common belt-driven oblique double-row grass-cutting wide mower without a tension pulley: or a lawn mower with a manual locking device to prevent the side grass discharge cover from being opened by mistake; or a lawn mower with a left door panel, a right door panel and a retractable side grass discharging cover; or sliding the door plate to the left and right guide rails and using a side grass discharging cover; or a lawn mower with linkage locking to prevent the uncovering of the side grass discharge cover by mistake; in different seasons.

The riding mower with the safety circuit protection measure is a riding mower with a safety circuit, a noise reduction measure and hydraulic stepless speed change, and comprises a steerable front axle connected with two front wheels, a drivable rear axle with hydraulic stepless speed change connected with two rear wheels, a frame with double bumpers above four wheels, a mowing device with noise reduction below the frame, an engine with a noise elimination groove at the front part above the frame, a hood 1 with noise reduction and an air filter screen 4 with noise elimination, a saddle with noise reduction at the rear part above the frame, a grass collection box 10 with noise reduction and a body 10c behind the vehicle, wherein the steerable front axle is connected with the two front wheels; and accessories such as earplugs, soundproof cotton, earmuffs and soundproof helmets for personal protection of the riding operator, so as to improve the comprehensive quality. The steerable front axle connecting two front wheels included in the riding mower comprises a known parallelogram steering mechanism between the two front wheels 6, namely a left bent axle and a right bent axle connected by a connecting rod, the upper end of the left bent axle is fixed at one end of a control rod by a joint arm, and the other end of the control rod is fixedly connected to a gear with a steering wheel 8 and a tapered fluted disc 8a, so that the steering is convenient. As shown in fig. 9, 10, 13 and 15, the toothed plate 8a is characterized in that: the teeth of the fluted disc 8a are internal teeth, and particularly the inner tooth surface has conicity, but not originally; if the steering wheel is provided with external teeth, the external teeth are easy to give way, and the internal gear and the external gear of the steering wheel are not matched so as to realize tacit understanding; and because the existing improvement is tapered or chamfered, the gear is more easily matched with the inclined teeth. The taper is less than 30 degrees, preferably 18 degrees; because the toothed disc 8a is mounted horizontally for connection to a parallelogram steering mechanism and the axes of the gears of the steering wheel 8 are angled, typically 18 degrees, from the vertical, it is convenient to operate; the gap is adjusted according to the actual condition and greased.

The riding mower with noise reduction measures and hydraulic stepless speed change comprises a drivable rear axle 24 with hydraulic stepless speed change and connected with two rear wheels 6b, as shown in fig. 20, which is a schematic front view that a plurality of connecting screws and a half of the rear axle are removed, and the other half of the rear axle is exposed to the inside of two plunger pumps, a hydraulic control valve set and a plurality of gears, wherein the rear axle comprises two half shafts arranged between the two rear wheels, a differential is arranged between the two half shafts, so that the differential is upwards connected with a stepless speed change mechanism and a brake device of a second plunger pump 24c and the hydraulic control valve set in sequence, is connected with a clutch mechanism of a first plunger pump 24b through the valve set, and transmits the power of an engine main shaft 11 through a belt 22 of a belt pulley on a rotating shaft of the first plunger pump, and is characterized in that: the differential comprises a pair of half-axle gears, a planet wheel assembly between the half-axle gears, and preferably 2 planet wheels with 12 teeth on each planet wheel 24h of the planet wheel assembly; the planet wheel assembly is arranged on a larger gearwheel 24g, preferably with 53 teeth; the big gear 24g is meshed with the middle small gear 24f, and the number of teeth is preferably 11; the middle pinion 24f is coaxial with and fixedly connected with the middle gear 24e, and the number of teeth is preferably 48; the intermediate gear 24e is engaged with the speed change gear 24d of the second plunger pump, preferably with 13 teeth, so that a reduction gear is formed to increase the power, and a differential is formed to make the turning flexible. The number of the plungers of the second plunger pump is preferably 5, which is larger than that of the first plunger pump, and the cylinder diameter of each plunger is larger, so that the output torque is larger as an oil motor. Because the brake disc of the braking device is coaxially arranged on the speed change gear of the second plunger pump, the friction plate, the brake pull rod and the spring are arranged on the rear axle 24 near the brake disc to form the braking device, the braking device is convenient to be connected with the foot brake 12 and the hand brake 13 in the middle of the frame; the foot brake 12 and hand brake 13 of the present vehicle are actually the same set of mechanism. A gear shifting rod is arranged on a hydraulic control valve group between the second plunger pump and the first plunger pump, so that an oil inlet and an oil outlet on the hydraulic control valve group are regulated and controlled, and the output rotating speed is changed by changing the angle of the inclined plane at the top of the plunger of the first plunger pump, so that the hydraulic control valve group is conveniently connected with a forward gear 14 and a backward gear 14b in the middle of a frame to form a stepless speed change mechanism; when the first plunger pump is in a neutral position, the angle of the inclined plane at the top of the plunger of the first plunger pump is zero, no output is generated when the plunger rotates in a neutral position, and the first plunger pump plays a role of a clutch; the forward gear 14 and the reverse gear 14b are connected to operate the continuously variable transmission mechanism; when the forward gear 14 is stepped on, a gear shifting rod on a hydraulic control valve group between the second plunger pump and the first plunger pump regulates and controls an oil inlet on the hydraulic control valve group; the stepping is deep, so that the speed is high when the oil inlet is large; the stepping is shallow, and the vehicle speed is slow when the oil inlet is small, so that stepless gear shifting is realized; when the backward gear 14b is pressed down, a shift lever on a hydraulic control valve group between the second plunger pump and the first plunger pump is reversed, so that an oil inlet and an oil outlet on the regulation and control hydraulic control valve group are reversed, the second plunger pump is reversed, and a rear speed reducer and a differential gear are driven to be reversed to back the vehicle. Since the second plunger pump is used here in practice as an oil motor, it brings the speed change gear 24d into engagement with a series of gears, thereby driving the two half-shafts and the rear wheel 6b. And a parking rod is further arranged on the hydraulic control valve group between the second plunger pump and the first plunger pump, an inner oil port of the hydraulic control valve group is regulated and controlled, and when the parking position is pulled, the D-shaped rod inside the parking rod blocks the inner oil port. An oil inlet valve 24k is arranged in the drivable rear axle 24 to be communicated with an external oil box, so that lubrication is convenient; the inside of the driving rear axle 24 is also provided with a permanent magnet 24j, or horseshoe-shaped magnets, which has good effect due to the magnetic flow, or is arranged at a plurality of positions, thus being beneficial to absorbing scrap iron mixed into oil after each steel part is worn for a long time.

In addition, because the riding mower with noise reduction measures and hydraulic stepless speed change comprises the frame with the double bumpers above the four wheels, as shown in fig. 2, the front of the riding mower is provided with the bumpers, which is characterized in that: the bumpers are parallel bars, or three or more, each bar is a round pipe or a square pipe with two bent ends and a straight middle part, and at least two supports are used for supporting; the parallel bars should be safer than the single bars; as an improvement, the support is not rigid, but elastic, for example with a spring, or an elastic material such as rubber or polyurethane, which is more conducive to cushioning.

The riding mower with noise reduction measures and hydraulic stepless speed change comprises a mowing device with noise reduction below a frame, wherein the mowing device comprises a height adjusting part and a mowing part; referring to fig. 5, the height adjusting part, according to the parallelogram principle, is composed of a front fixed shaft (18a) and a rear fixed shaft 18c arranged on the frame, a front moving shaft 18b and a rear moving shaft 18d arranged on the cutting disc 18 and a rod connected with the front moving shaft and the rear moving shaft, a steel wire rope 18h for pulling, a sector gear 18g, a pawl 18f and a height adjusting handle 15, and is characterized in that: the front fixed shaft 18a and the rear fixed shaft 18c arranged on the frame, and the front movable shaft 18b and the rear movable shaft 18d arranged on the cutting disc are four vertexes of a parallelogram, and the corresponding edges are parallel and equal in pairs, so that no matter how the steel wire rope 18h is pulled by the heightening handle 15, several heightening gears are given by the sector gear 18g and the pawl 18f, and the connecting line of the front fixed shaft 18a and the rear fixed shaft 18c on the frame is always parallel to the front movable shaft 18b and the rear movable shaft 18d on the cutting disc, thereby basically ensuring the up-and-down translation of the cutting disc to normally work; however, in practice, the length of the wire rope 18h and the allocation of the sector gear 18g and the pawl 18f are adjusted. The whole cutting disc is parallel at each gear, but moves forwards and backwards, and moves by taking the engine main shaft 11 connected with the power belt 21 as a circle center and taking the longitudinal projection of the distance from the belt 21 to the first tool apron as a radius, and the belt 21 has a height difference, is oblique and can be used fortunately. As can be seen from FIG. 6, since the sector gear 18g for the upshifting has multiple teeth, now preferably 10 teeth, there are 10 gears, for example, which can be adjusted at 10-100mm height; or according to the common 25-85mm, and divided into several files according to the requirements of customers. Referring to fig. 10, the power of the mowing part is transmitted from the main shaft 11 of the engine to the first tool apron through the belt 21 and then transmitted to the second tool apron through the synchronous belt 23, so that the mowing tool 20 is driven to work conveniently; as a modification, referring to fig. 14 and 16, the mowing knife 20 is provided with two or more wings, and in order to cut off entangled grass, the wings are provided with a plurality of cutting edges 20a, and the included angle between the two surfaces of the cutting edges is not a right angle, and is preferably an acute angle smaller than 60 degrees; as a further improvement, the mowing knife 20 is provided with a plurality of hexagonal holes, or the mowing knife 20 is further improved, and the mowing knife 20 is provided with a plurality of convex-concave parts such as honeycomb or wedges 7b, so that the acoustic frequency of high-speed micro airflow passing through the knife is changed, namely noise is reduced.

The two knives of the other prior riding mower, although not one before the other, are rotated in opposite directions, using the more expensive double-sided synchronous belt, and using the two synchronous tension pulleys, which increases the cost, can find whether two knives, which are not one before the other, do not increase the circumference of the cutting disc and do not rotate in opposite directions, using the more expensive double-sided synchronous belt, and using the two synchronous tension pulleys, which makes the answer positive, the preferable method is to take the distance between the two points of the bar-shaped knife 20 as the diameter D, and to take the center (23a, 23B) of the rotating shaft of the two knives as the center distance, 23a, 2 a, 18a, a maximum distance between the two points of the rotating belt as the maximum distance, 618 a, 2 a, a maximum distance between the two points of the rotating belt as the maximum distance, 18a, B is a maximum distance, B is a width of the cutting disc is a, B is a maximum distance, B is taken as a maximum distance, B is a width of a, and B is a width of a width:

The design ratio N is a/D, and is preferably 74% to 92% in general.

For example, 74%, the tool length D is 530, and the tool center distance a is 390; the cutting width F is equal to D + A, equal to 530+390, equal to 920, a little less, and hopefully a big point better; it is sufficient that the recut width B-a-140.

As another example, the design ratio N is 92% a/D, the tool length D is 530, and the tool center distance a is 490; the cutting width F of the mower is D + A, 530+ 490-1020, which is a little bit good; a repeating swath B-D-a-40 may also be used.

When the heavy mowing width B is not more than D-A and not more than 20, grass may be leaked, and the grass may be left and right swayed and fallen down by the mowing disc, so that the grass may be occasionally not mowed. In practice, the clearance between the inner periphery of the cutting disc and the cutting edge is preferably 3mm or more.

Because the PROE-WILDFIRE software is adopted, the drawing can be conveniently changed, and other software can be used.

Because the riding mower with noise reduction measures and hydraulic stepless speed change comprises the engine with the noise reduction groove and the noise reduction hood which are arranged at the front part above the frame, as shown in fig. 4 and 10, the engine is omitted for the purpose of clearing and avoiding blocking; an enlarged view of the muffling slot is shown in fig. 18 and 19; the silencing groove provided by the invention comprises a silencing pipe 7 and a water groove 2; the lower bent pipe of the silencing pipe 7 is immersed in the water tank 2, so that the temperature is reduced. The water tank has the function of killing two birds with one stone, and water is used for replacing a heavy object besides cooling; it is arranged at the front part of the mower, so that the mower has the function of counterweight. The water in the water tank is added only when the water tank is used temporarily, and the transportation weight is not counted; half of the water is added instead of filling the tank. The lower end of the lower bent pipe of the silencing pipe 7 is connected with the outlet of the silencer. The water tank 2 is characterized in that the side surface of the water tank is provided with a through hole so as to be matched with the lower bent pipe of the silencing pipe 7; the bottom of the water tank is provided with a water outlet. The silencing pipe 7 consists of a plurality of sections of inner pipes 7a, a connecting piece and an outer pipe containing a plurality of wedge 7b arrays of micropores. The outer pipe is internally provided with an inner pipe, and the inner pipe 7a is characterized in that honeycomb hexagonal holes, or polygonal holes, or elliptical and oblong holes are arranged on the inner pipe; the lengths of the inner pipes in the multiple sections are different and alternate; for example, if there is a longer inner tube that is three quarters of a wavelength multiplied by a factor, then the next inner tube is one quarter of the wavelength multiplied by a factor. In addition, the distribution of a plurality of holes arranged on the inner pipe 7a is not uniform but sparse and dense; the part of the middle quarter of the tube length on one section of the tube with the three-quarter wavelength multiplication coefficient is provided with dense holes, and the rest part of the tube is provided with sparse holes; and the holes are characterized by hexagonal holes or polygonal holes; the inner tube with the quarter-wavelength multiplication coefficient is characterized in that the distribution of a plurality of holes is not uniformly distributed but is sparse and dense; the part of the middle part of the pipe, which is three eighths of the length of the pipe, on the section of pipe is provided with dense holes, and the other part of the pipe is provided with sparse holes. Said holes are polygonal, preferably hexagonal; as an improvement, or the eyelet is characterized by being polygonal, hexagonal or a polygon flanged with a spanner; or the holes are characterized by the micro-porous wedges 7b, so that the quarter-wave effect, the dilatational wave effect and the honeycomb effect are achieved. The surface of the outer tube 7b is provided with a plurality of protrusions which are formed by punching and are in a multi-pyramid shape, namely a multi-face pyramid shape, particularly a hexagonal pyramid shape, and the protrusions are called wedges 7 b; the wedge is characterized in that the root of the metal plate which is punched is hexagonal, the width of the wedge is reduced from the root to the top, and the width-depth ratio of the wedge is approximately one to one or one to one and one to five. And the top of each of the six-pyramid shaped wedges on the surface of the silencing tube is provided with a micropore, and the diameter of the micropore is preferably approximately 0.1 to 0.5 mm. On the surface of the inner tube 7a, as an improvement, or the hole may be changed to have many protrusions formed by press forming, and the shape of a polygonal pyramid, particularly a hexagonal pyramid, may be referred to as a wedge, but the width-to-depth ratio is one to eight or at most four to one. The wedges form a wedge multi-edge structure, and the arrangement of the wedges on each surface is honeycomb-shaped hexagonal polygon, or random, or oval, long round or irregular convex-concave; metal fibers or temperature-resistant non-metallic materials can be filled in the silencing pipe or can be filled in the silencing pipe; or may be half filled with a sound absorbing material resistant to medium temperatures, such as a porous sound absorbing material, or a flexible material and a film-like material. Or sticking, or directly molding, or adding azo foaming agent in the mould to make the outer part hard and the inner part hard to solidify. Such as fibres, foams, granules, alone or in more or less mixed applications. Also usable are fibers such as rock wool, or glass wool, especially ultra-fine glass wool; or foam, which is to be fireproof at the position close to the hot part; or filling or attaching with particles such as expanded perlite, porous pottery clay brick, and temperature-resistant fabric or felt; therefore, the performance index is improved, and the comprehensive composition achieves the purpose of better noise reduction effect. The materials have complementary high and low frequency sound absorption capabilities. The wedges increase the heat dissipation area; in particular, the wedges with the micropores not only have the micropore effect of noise reduction, but also have the potential effect of discharging excessive gas and liquid. As the extension, the wedges can also be reversely stretched, namely outward to increase the heat dissipation area. A gasket serving as both a heat insulating pad and a shock absorbing pad may be further assembled between the muffler and the engine. A gasket serving as both a heat insulating pad and a shock absorbing pad may also be fitted between the outlet of the muffler and the muffler pipe 7. The silencing groove provided by the invention is provided with a plurality of large-area wedge areas, comprises a plurality of wedges with micropores, and has wedge resistance reduction effect and micropore effect. The silencing groove provided by the invention has the beneficial effects that: increase the silencing effect and improve the comprehensive performance of the silencer, such as insertion loss, sound transmission loss, noise reduction and attenuation, and cooling. One inventive concept is to wander like ghost: if thick and soft foam plastics are used or improved, the various noise-damping and vibration-damping materials are comprehensively utilized, and a plurality of large-area wedge areas are used, the noise-damping and vibration-damping materials are arranged on the mowing table 18, see fig. 21, and a plurality of places of the mower, such as a head cover 1, see fig. 11, see fig. 12, a vehicle body 10c, a vehicle seat with noise reduction in the middle part above the vehicle frame and a grass-collecting box with noise reduction in the rear of the vehicle, so that the effects of safety protection and noise reduction can be expected. In addition, the present accessory is equipped with earplugs, sound-proof cotton, earmuffs and sound-proof helmets for personal protection of the seated operator. And artificial foot protection plates with rotating hinges are arranged on two sides of the middle part of the mower. The artificial foot protection plate with the rotating hinges arranged on the two sides of the middle part of the mower consists of a protection plate and the rotating hinges; the protective plate is characterized in that the protective plate is made of sound-absorbing material and is arranged on the left and the right; however, when the side grass discharge plate is sometimes arranged on the right side, the foot protection plate is only arranged on the left side; the protective plate is preferably foot-shaped, namely, the protective plate is wave-shaped with two slightly larger ends, so that the warning association and the artistic image of the foot which needs to be careful are enhanced; the protective plate is preferably made of a relatively soft but not too soft material with a Shore hardness of 65 to 95 such as rubber, polyurethane or polyvinyl chloride, and has the advantages that the flexible plate is less prone to damage grass when placed horizontally for work, for example, on both sides of the cutting disc 18, and the flexible plate is more convenient to pack. The protective plate can also be made of hard materials. The protection plate edge be equipped with mobilizable hinge, do not limit one or many or with flexible material, assist again with the definite spacing that can just end, as long as enable the protection plate let go can work and turn up and go to be convenient for vanning just can. As extension or improvement, the protection plate can also be detachable and can be put on when in work and taken off when not in work. In order to prevent the trouble, the prevention is mainly carried out, and the complete machine for delivering goods in large quantity can be ensured to pass through the prosthetic foot detection. The fender can also be used elsewhere in the fuselage, for example above the two rear wheels. As another example, the entire car may be made of sound insulating material to be not open, but roofed, or fully enclosed, to facilitate sun protection, or to provide sound insulation. Foaming materials, porous sound-absorbing materials, such as foaming cement or foaming plastic, or flexible materials and film materials, or double-layer blow molding parts can be used at all parts of the machine head body; or sticking, or directly molding, or adding azo foaming agent to form external hard and internal foaming in a mould to be solidified; or double-layer blow molding into honeycomb with large area and wedge-shaped convex-concave shapes, such as machine head and machine body. In summary, there are various noise reduction measures: not only utilizes different characteristic impedances of sound absorption materials to reduce reflected sound, but also utilizes the principle of small hole low-frequency diffraction shadow area to arrange a sound barrier to weaken high-frequency noise. The number of the earplug pre-mode earplugs is more, and the earplugs are molded into a certain geometric shape by soft plastics or soft rubber; or with a foam earplug; therefore, the sound insulation and comfort are certain. The sound-proof cotton is made of superfine glass wool through chemical softening treatment, and the diameter of the sound-proof cotton is preferably 1-3 microns; the small cone is made, so the ear is convenient to be plugged; the sound insulation effect of the sound-proof cotton is better than that of common cotton, and the sound insulation value is improved along with the increase of the noise frequency, so the sound-proof cotton is more effective for isolating high-frequency noise, and the use of the sound-proof cotton not only has no obstruction to the language connection, but also improves the language definition. The ear muffs are ear protection devices like earphones or music ear muffs, so that the pleasure of work can be increased. The sound-proof helmet is a motorcycle helmet, so the sound-proof helmet also has a security function.

And because the saddle that has the noise reduction of the middle part inclined to the back above the frame also has the characteristic: the saddle is wrapped with thick noise reduction foam materials, and the saddle can move back and forth; the saddle is provided with a limit protection switch which is connected when a person sits down and is not connected when the person leaves; or a non-contact human body sensor, namely a sensor, so that the protective effect is also achieved. The grass collecting box 10 with the noise reduction function is arranged at the rear of the vehicle, and 2 hooks 17 are arranged on the rear of the vehicle. The single-sided synchronous belt which drives the two knives in the same direction is too tight in a workshop and is not easy to install on a production line; if loose, it is easy to skip occasionally and not synchronize. As an improvement, in order to mount the single-sided synchronous belt 23 which drives the two cutters in the same direction, referring to fig. 22, a tension pulley 23c is additionally arranged, and the tension pulley 23c is in contact with the toothless surface of the single-sided synchronous belt 23, so that the tension pulley is a toothless circular pulley; the tensioning wheel is arranged on a tensioning bracket 23d, and the tensioning bracket 23d is movably adjustable by taking a fixed bolt 23e as a lever fulcrum, so that the tensioning wheel can be estimated by an adjusting bolt 23f and an adjusting nut 23g on a fixed small adjusting bracket 23h, the installation is convenient, and the asynchronous phenomenon is eliminated.

As an improvement, the whole car is made of sound insulation materials, not an open roof, but a top, or a full-closed car type, or a large-scale whole car, which is beneficial to sun blocking or full sound insulation; or several large pieces. The machine head body can be arranged at any position or integrally. The cowl 1 and the vehicle body 10c shown in fig. 11 and 12 may be either integrated or joined. For example, the body 10c may be divided into two front and rear blocks, and the rear block may be inserted and combined to form an upper cover of the grass collecting box. All parts of the machine head body or the whole or all the parts are also mainly of an anti-noise structure, such as the machine head body and the header which are molded and stretched by steel plates into honeycomb wedge convex-concave shapes, or honeycomb wedge convex-concave large parts which are attached to iron plates and molded by injection molding, and then the machine head body is matched with sound insulation materials such as foaming materials, porous sound absorption materials, foaming cement or foaming plastics, or flexible materials and film-shaped materials; or attaching, or directly molding, or adding azo foaming agent into the mold to form a structure which is solidified by foaming in the outer part and the inner part, such as a portable refrigerator; or double-layer blow molding to form large-area honeycomb and wedge-shaped convex-concave various large blow molding parts, such as a machine head and a machine body, and then attaching thick foamed plastic. In summary, there are various noise reduction measures: not only utilizes different characteristic impedances of sound absorption materials to reduce reflected sound, but also utilizes the principle of small hole low-frequency diffraction shadow area to arrange a sound barrier to weaken high-frequency noise. Two vehicle lamps 3 are arranged at the joint of the noise-reducing hood 1 and the noise-eliminating air filter screen 4, so that the attention is paid to not too much noise leakage of a bonding seam and temperature rise; if the lamp is an LED, the temperature rise is not a problem; of course, other types of lamps may be used. To speak of a lamp, to speak of a circuit; safety circuit protection measures must be added to ride-on mowers for safety. Referring to fig. 27, the safety circuit mainly includes a single board computer and meter card C4, an engine card C1, an expansion card C5, an ignition switch C2, a battery B1, a dc relay C3, a power take-off PTO switch C6, an electromagnetic clutch C7, a starter ST, 2 buzzers, a first fuse F1, a second fuse F2, a headlight switch SO, a left headlight L1, a right headlight L2, a parking switch S1, an N-shift switch S2, a seat switch S3, a grass hanging box switch S4, and a full grass alarm switch S5, and is characterized in that: the left headlamp L1 and the right headlamp L2 are respectively formed by connecting a plurality of, for example, 4 light-emitting diodes in series, and resistors can also be added; or each consisting of a plurality of leds connected in series-parallel, for example 4 series-4, i.e. each consisting of 16 groups, and preferably arranged along an arc sector, in order to widen the viewing angle; the seat switch S3 is newly designed in an unconventional way; because of the original seat switch, although the seat is disconnected when not seated, the seat switch can be started only when the driver sits down; if the driver leaves the seat, the one-board computer delays flameout control for 3-5 seconds, which sounds as safe, but not; the original seat switch has the long-standing problem which is difficult to solve, because the grassland is bumpy, the buttocks are shaken, the seat is up and down, and the seat switch is suddenly turned off, especially when a driver falls carelessly, a single-board computer with 3-5 seconds delays to turn off the fire control, and the fire is turned off after 3-5 seconds; the traveling speed of the mower is 3.6-15 km/h, even if the lowest speed is taken for one meter per second, the mower can be stopped after being flushed by 3-5 meters or more than ten meters, and people can not easily imagine what the fallen hands and feet or obstacles mean; in order to eliminate unsafe hidden trouble, a new-conceived unconventionally designed reliable and less expensive seat switch is needed, the seat switch must be safe, cannot be switched on and off when the seat shakes up and down with large amplitude, and can be switched off immediately within 0.1 second when the seat is switched off; the seat switch provided by the invention solves the problem of old difficulty; referring to fig. 28, the seat switch S3 is mainly composed of a long slide bar S3-1 provided under the seat 9, a carbon brush S3-2 provided on a guide rail associated with the long slide bar, and a seat spring 9-2, and is shown in a schematic sectional view when the seat switch is just turned off; because the long slide bar S3-1 is arranged under the seat 9 and is inserted into the guide rail and is matched with the carbon brush, the long slide bar S3-1 follows the seat 9 to move up and down to be inserted and pulled out; the long slide bar S3-1 is a long bar, and if the cross section of the long slide bar is curved, such as circular or tubular, the end face of the carbon brush S3-2 matching with the curved cross section of the long slide bar should also be curved; if the long slide bar has a square cross section, such as a square, polygon, angle iron, or channel, the end surface of the carbon brush S3-2 matching the flat cross section of the long slide bar should also be planar so that the matching points have good conductive contact; the middle part of the long sliding rod S3-1 is a conductor, such as copper, while the two ends are insulators, such as plastic, and the conductor is provided with a soft lead to be connected with a connecting terminal of the switch S3; the carbon brush is also provided with a soft lead which is connected with the other connecting terminal of the switch S3; a return spring is arranged behind the carbon brush; because the long slide bar S3-1 follows the seat, it can be reset by the seat spring 9-2 under the seat 9, of course, it can also set an auxiliary reset spring at the lower end of the long slide bar; when a person sits on the seat, the long rod-shaped conductor of the long slide bar S3-1 is inserted and pulled out, although the insertion and pulling amplitude is larger, the long rod-shaped conductor is always in good contact with the carbon brush, when the person leaves the seat, the long rod-shaped conductor of the long slide bar S3-1 is pulled out immediately under the full force of the seat spring 9-2, the amplitude of the long rod-shaped conductor is larger than the swaying amplitude area of the person sitting, the long rod-shaped conductor is disconnected from the carbon brush, and the insulating part of the long slide bar is in contact with the carbon brush; the junction of the long rod-shaped conductor of the long slide bar S3-1 and the insulating part at the lower part of the long slide bar cannot have steps or unevenness, and machining such as turning and milling is preferably performed after molding so as to facilitate sliding without clamping. In a flameout state, M and G of the ignition switch C2 are switched on, the main circuit is short-circuited, and the single board computer and the No. 2 black line of the instrument plug C4 and the engine plug C1 are short-circuited, so that the gasoline engine is flameout; in the running state, B and L of an ignition switch C2 are switched on, a main circuit is switched on, a single board computer and an instrument plug C4 are electrified through a No. 5 blue line, a first end of an engine plug C1 inputs high level, and an accelerator switch is switched on; when the accelerator position is in the N-position, the N-position switch S2 is turned off, and the meter display lamp is turned on. In the parking state, the parking switch S1 is closed, and the display lamp N on the instrument is on; when the seat is not seated, the seat switch S3 is turned off, and the meter display lamp P is turned on. If the grass collecting box is not hung, the switch S4 of the grass hanging collecting box is switched off, the warning light of the grass collecting box is on, and meanwhile, the buzzer U1 gives out continuous warning sound; when the voltage of the storage battery B1 is insufficient, the voltage for connecting the main circuit is too low, and the storage battery indicator lamp is turned on; when a headlamp switch SO is closed, the headlamp is on; in a starting state, B, L and S of an ignition switch C2 are switched on, a main circuit is switched on, and running functions can be realized; the dark red line of the S end is connected to the No. 4 line end of the single board computer and the meter plug-in component C4, receives the high level signal of the No. 4 line end through the single board computer control, controls the output high level signal of the No. 3 line end, is connected to the direct current relay, enables the direct current relay C3 to be conducted, and the power supply flows into the starter ST through the direct current relay, so that the gasoline engine is started. The starting control is to judge whether the following 5 starting conditions are met by the single board computer: 1. the accelerator is in an N-gear state, and the N-gear switch is disconnected, so that a No. 7 line end cannot form a loop through the N-gear switch; 2. the left end of a power output PTO switch C6 is closed, because the PTO switch is always opened by one group of switches, the other group of switches are closed normally, the position on the graph is the state that the left end of a switch C6 is closed, at the moment, the cutting knife is separated and does not work, and the blue line of the No. 11 wire end forms a loop through PTO output of the left end cutting knife switch of the PTO switch C6; 3. when the seat is seated, the seat switch is closed, and the No. 8 line end orange line is output through the seat switch to form a loop; 4. when the vehicle is parked, the parking switch S1 is closed, and the purple line at the No. 6 line end is output through the parking switch to form a loop; 5. when the grass collecting box or the rear cover plate is hung, the switch S4 of the grass hanging and collecting box is pressed down, and the dark red line at the No. 9 line end forms a loop through the switch of the grass hanging and collecting box; therefore, when the ignition switch is in the starting state, the dark red line at the No. 4 line end inputs a high level signal to the instrument plug-in, whether the above 5 signal requirements are met or not is judged by the single board computer, if the above 5 signal requirements are met, the purple line at the No. 3 line end outputs a high level, the direct current relay C3 is conducted, and the starter works. Flameout control: flameout control of the vehicle after running; there were 5 signals or 5 misfire signals; the signal 1 is a parking switch, when the parking switch is not in a parking state, the parking switch is turned OFF, the No. 6 purple line cannot form a loop for outputting, and otherwise, the parking state is not; the signal 2 is an N-gear switch, when the accelerator gear is not in the N-gear position, the N-gear switch is turned ON, the gray line at the No. 7 wire end forms a loop for outputting, and vice versa in the N-gear position; a signal 3, namely a seat switch, wherein when the seat is not seated, the seat switch S3 is switched off, the No. 8 line end orange line cannot form loop output, and otherwise, the seat is seated; a signal 4, a grass hanging and collecting box switch, if the grass hanging and collecting box switch S4 is switched off when the grass collecting box is not hung, a warning light of the grass collecting box is on, meanwhile, a buzzer U1 sends out continuous warning sound, a No. 9 dark red line end cannot form loop output, and the situation is not true when the grass collecting box or a rear cover plate is hung; signal 5, power take off PTO switch C6, because PTO switch always a group of switches is normally open, a group of switches is normally closed, the position on the figure is the state of closing the left end of switch C6, at this moment, the cutter knife is separated and does not work, the blue line of the 11 # line end forms a loop through PTO output of the left end cutter switch PTO of PTO switch C6; when the left end of the PTO switch C6 is unfit and the right end is closed, the electromagnetic clutch C7 is attracted, the cutting knife is combined, the blue line of the 11-line end passes through the PTO switch C6 and the PTO output of the left end cutting knife switch fails to form a loop, and at the moment, a working display lamp of the upper cutting knife of the instrument is on; the 5 misfire signals were: 1. in the 5 signals, when the PTO is started, the cutter is combined, and the seat is not seated, the engine is delayed for 3-5 seconds to shut down; 2. in the 5 signals, the grass collecting box or the rear cover plate is not hung, the warning lamp of the grass collecting box is on, meanwhile, the buzzer U1 gives out continuous warning sound, and the engine immediately stops; 3. in the 5 signals, when the vehicle is parked, the parking switch S1 is closed, the left end of the PTO switch C6 is unfixed, when the right end is closed, the electromagnetic clutch C7 is attracted, the cutter is combined, and the single board computer immediately stops the engine; 4. in the 5 signals, if the seat is not seated when the seat is not in the N gear position, the engine is stalled for 3-5 seconds; 5. in the 5 signals, when the accelerator gear is at the N gear position, the seat is not seated in the non-parking state, and the engine is flameout after 3-5 seconds of delay; when the vehicle meets one or more flameout signals, the single-board computer is used for judging the signals, and the relay is used for controlling, so that the black line at the No. 2 line end is in short circuit, even if the flameout line output of the engine plug-in C1 is grounded, the gasoline engine is flameout, and the delay time is realized through a single-board computer delay subprogram. Several controls are described below. Firstly, parking control is carried out, when a vehicle is parked, the parking switch S1 is closed, the gear is in the N gear position, the seat is not seated, the left end of the PTO switch is closed, the right end of the PTO switch is not closed, the electromagnetic clutch C7 is not attracted, the cutting knife is not closed, the grass collecting box and the rear cover plate are hung, and the engine is still in an idling state. In addition, in the running control, under the parking state or the parking state caused by error operation sometimes, the gear is not in the N-gear position, the seat is seated, the left end of the PTO switch is closed, the right end is not closed, the electromagnetic clutch C7 is not closed, the cutting knife is not closed, the grass collecting box and the rear cover plate are hung, and the engine is not flameout. And then, brake control is carried out, in a running state, a brake is stepped on, in an unparked state, a gear is in an N-gear position, a seat is seated, the left end of a PTO switch is closed, the right end of the PTO switch is not closed, an electromagnetic clutch C7 is not closed, a cutting knife is not closed, a grass collecting box and a rear cover plate are hung, and the engine is still in a working state. In the following, grass cutting control is performed, in the non-parking state, the gear is not in the N-gear position, or the gear is in the N-gear original place for grass cutting, the seat is seated, the left end of the PTO switch is not closed, the right end of the PTO switch is closed, the electromagnetic clutch C7 is closed, the cutting knife is closed, the grass collecting box and the rear cover plate are hung, and the engine is still in the working state. Finally, a full grass alarm system is described, when the grass collecting box is full of grass, the full grass alarm switch S5 is pressed, a 10-line end brown line forms a loop through the full grass box alarm switch S5, and at the moment, the buzzer U2 gives out an alarm sound.

Because various safety circuit protection measures and noise reduction and environmental protection measures are adopted on the riding mower, the comprehensive effect of the riding mower is beneficial to mowing, comfortable operation, circuit monitoring, noise reduction, environmental protection and safety.

Aims to achieve the comprehensive effects of being beneficial to mowing, comfortable to operate, noise reduction, environmental protection and safety and reducing the cost; the wide rear grass row and the wide side grass row can be simultaneously arranged without a tensioning structure or a synchronous cog belt, the market objectively needs a common belt-driven oblique double-row wide grass mower with double mowing knives in the same direction without a tensioning wheel, and a four-wheel lawn mower with two rear grass outlet ports is also needed.

The common belt without the tensioning wheel drives the oblique equidirectional double-row wide mower with double mowing knives, so that the cost is reduced; the wide rear grass discharge and the wide side grass discharge can be simultaneously arranged without a tensioning structure and a synchronous cog belt. The distance between the double mowing knives is not less than the diameter of the knife; the double mowing knives rotate in the same direction, the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives to be on the same straight line by using belts respectively, and the driving belt wheels are obliquely arranged so as to have a re-cutting area without cutting, namely the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives to be on the same straight line by using belts respectively, and the connecting lines of the circle centers of the knife belt wheels on the same straight line and the axle lines of the front wheel and the rear wheel of the mowing machine are provided with an included angle beta of 15-45 degrees; and the cutterhead of the double mowing knives is provided with a side grass outlet (29) and a rear grass outlet (30).

Has the advantages that: there is an objective need in the market for a four-wheel lawn mower having two rear grass discharge outlets simultaneously to allow grass to enter the grass-collecting bag without clogging the grass. The common belt drive oblique double-row wide grass mower without the tensioning wheel has no tensioning wheel, does not need a tensioning structure and a synchronous cog belt, and can be simultaneously provided with wide rear grass rows and wide side grass rows. The distance between the double mowing knives is not less than the diameter of the knife; the double mowing knives rotate in the same direction, and the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives to be on the same straight line by using belts respectively and are obliquely arranged so as to have a re-cutting area without leakage; and the cutterhead of the double mowing knives is provided with a side grass outlet (29) and a rear grass outlet (30). Although a plurality of grass discharging and breaking anti-blocking devices are provided, the practical problem of no grass blocking is fundamentally solved only when the four-wheel lawn mower with two rear grass discharging outlets is available. The comprehensive effect is not only beneficial to mowing, comfortable operation, but also beneficial to noise reduction, environmental protection and safety, and is to reduce cost and revolutionarily change the conventional single grass outlet into two rear grass outlets, which is originally unexpected; the effect is obvious, the international approval and large orders are obtained, and various grass discharging, smashing and blockage preventing devices are omitted.

The four-wheel lawn mower is characterized in that the lawn mower is provided with two rear grass outlet ports, the two rear grass outlet ports (33) are arranged on a channel from the grass cutter to a grass collecting bag of the grass collecting box one by one on the left and the right, so that grass from the left grass cutter and the right grass cutter can pass through the channels, and the two ports are more than one and can not be blocked.

The four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are respectively arranged on a channel from the grass cutting blade to a grass collecting bag of the grass collecting box in a rectangular manner in a left-right symmetrical manner, so that grass from the left grass cutting blade and the right grass cutting blade can pass through the channel, and the effect is better than that of a round hole.

The four-wheel lawn mower with two rear grass outlet ports is improved continuously, and is characterized in that the two rear grass outlet ports (33) are arranged on a channel from the grass cutting blade to a grass collecting bag of the grass collecting box in an inverted trapezoid manner, wherein the inverted trapezoid manner is left-right symmetrical, and the grass from the left grass cutting blade and the grass from the right grass cutting blade can pass through the channel, so that the four-wheel lawn mower is suitable for long wet grass.

The four-wheel lawn mower with two rear grass outlet openings is characterized in that the two rear grass outlet openings arranged on the lawn mower are respectively provided with a door cover at the left and the right, and the door covers are used when the grass collecting bag is removed.

The four-wheel lawn mower with two rear grass outlet openings is characterized in that the two rear grass outlet openings arranged on the lawn mower are respectively provided with a door cover at the left and the right, and the door cover is provided with a door cover torsion spring and a gear so as to be convenient to adjust.

The four-wheel lawn mower with two rear grass outlet ports is characterized in that a front-drive reducer (31) and a front-drive belt (32) are arranged on the lawn mower to drive front wheels, and the four-wheel lawn mower is selected when the gradient is large.

The four-wheel lawn mower with two rear grass outlet ports is characterized in that four mutually meshed mowing disc gears (34) are arranged on the lawn mower to drive a left mowing knife and a right mowing knife to select and use when cutting hard grass.

There is an objective need in the market for a four-wheel lawn mower having two rear grass discharge outlets simultaneously to allow grass to enter the grass-collecting bag without clogging the grass. The common belt without the tensioning wheel drives the oblique equidirectional double-row wide mower with double mowing knives, so that the cost is reduced; the wide rear grass discharge and the wide side grass discharge can be simultaneously arranged without a tensioning structure and a synchronous cog belt. The distance between the double mowing knives is not less than the diameter of the knife; the double mowing knives rotate in the same direction, and the driving belt wheels simultaneously drive the connecting lines of the circle centers of the knife belt wheels of the double mowing knives to be on the same straight line by using belts respectively and are obliquely arranged so as to have a re-cutting area without leakage; and the cutterhead of the double mowing knives is provided with a side grass outlet (29) and a rear grass outlet (30). Although a plurality of grass discharging and breaking anti-blocking devices are provided, the practical problem of no grass blocking is fundamentally solved only when the four-wheel lawn mower with two rear grass discharging outlets is available.

The lawn mower with the manual locking function for preventing the accidental operation of uncovering the side grass discharge cover presses the side grass discharge cover 35 by a pressing clamp of the lock catch seat 36 a; the double-front buckling frame on the double-back buckling frame 36a is further provided with a double-back buckling frame at the back, the double-back buckling frame is provided with the buckling shaft 36b, the buckling shaft 36b is sleeved with the buckling spring 36c, the buckling shaft 36b is further sleeved with the buckling spring 36c, and the buckling shaft 36b is provided with the buckling shaft 36b, the buckling spring 36c sleeved on the buckling shaft 36b and the buckling spring 36b sleeved on the buckling shaft 36b form a second pressing clamp together, so that double clamping and self-locking are facilitated; the latch buckle 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring.

The lawn mower with the door plate sliding open to the left and right guide rails and the side grass discharge cover is characterized in that the door cover moves along the door plate left and right guide rails 29e to open and close the side grass discharge port 29 of the chassis of the lawn mower, and the left and right guide rails are provided with clamping lock catches 36; the double back buckle seat frame of the buckle 36 is provided with the buckle shaft 36b, the buckle spring 36c is sleeved on the buckle shaft 36b, the buckle 36b is also sleeved on the buckle shaft 36b, and a second compression clamp is formed by the buckle shaft 36b arranged on the double back buckle seat frame, the buckle spring 36c sleeved on the buckle shaft 36b and the buckle spring 36b sleeved on the buckle shaft 36b, so as to facilitate double clamping and self-locking; the latch buckle 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring.

The lawn mower with the left door panel, the right door panel and the retractable side grass discharging cover is characterized in that a left door panel 357 with a vertical rotating shaft is arranged on the left side of a side grass discharging port 29 of a chassis of the lawn mower, and a right door panel 358 with a vertical rotating shaft is arranged on the right side of the side grass discharging port 29; a folding telescopic top 35j and a folding telescopic soft belt 35f are arranged above the side grass discharge port 29; a fastener 36 is arranged above the side grass outlet 29 of the chassis of the lawn mower; the double back buckle seat frame of the buckle 36 is provided with the buckle shaft 36b, the buckle spring 36c is sleeved on the buckle shaft 36b, the buckle 36b is also sleeved on the buckle shaft 36b, and a pressing clamp is formed by the buckle shaft 36b arranged on the double back buckle seat frame, the buckle spring 36c sleeved on the buckle shaft 36b and the buckle spring 36b sleeved on the buckle shaft 36b, so as to be beneficial to clamping and self-locking; the latch buckle 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring; when the side grass discharging port 29 is closed, the left door leaf 357 with a vertical rotating shaft arranged on the left side of the side grass discharging port 29 of the chassis of the lawn mower closes the side grass discharging port, and the right door leaf 358 with a vertical rotating shaft arranged on the right side of the side grass discharging port 29 covers the left door leaf again to close the side grass discharging port in a double-safety way; the folding retractable top 35j and the folding retractable soft belt 35f which are arranged above the side grass discharging port 29 are covered on the right door panel and the left door so as to close the side grass discharging port in a three-safety way; when the side grass discharging is needed, the folding retractable top 35j and the folding retractable soft belt 35f arranged above the side grass discharging opening 29 are unfolded to be used as a side grass discharging cover, and the opened right door panel and the opened left door panel are just used as the left and right guard plates of the side grass discharging cover. The benefits are self-evident.

The invention has the following bright points:

The lawn mower is provided with a left door panel, a right door panel and a retractable side grass discharging cover, wherein the left and right sides of the side grass discharging opening are provided with the left door panel and the right door panel with vertical rotating shafts; a folding telescopic top 35j and a folding telescopic soft belt 35f are arranged above the side grass discharge port; the snap fastener 36 is also provided with a bolt for a conventional built-in lock with an internal compression spring; when the side grass discharging port 29 is closed, the left door panel is closed firstly, the right door panel covers the left door panel to be closed in a double-safety mode, and the folding retractable top 35j and the folding retractable soft belt 35f cover the right door panel and the left door panel to close the side grass discharging port in a triple-safety mode; when the side grass discharging is needed, the folding retractable top 35j and the folding retractable soft belt 35f are extended to be used as the side grass discharging cover, and the opened right door panel and the opened left door panel are just used as the left guard plate and the right guard plate of the side grass discharging cover.

Claims

1. The lawn mower with the left door panel, the right door panel and the retractable side grass discharging cover is characterized in that the left side of a side grass discharging port (29) of a chassis of the lawn mower is provided with the left door panel (357) with a vertical rotating shaft, and the right side of the side grass discharging port (29) is provided with the right door panel (358) with a vertical rotating shaft; a folding retractable roof (35j) and a folding retractable soft belt (35f) are arranged above the side grass discharge port (29); a fastener (36) is arranged above a side grass discharge port (29) of the chassis of the lawn mower; a clamping buckle shaft (36b) is arranged on a double rear buckle seat frame of the clamping buckle (36), a clamping buckle spring (36c) is sleeved on the clamping buckle shaft (36b), the clamping buckle (36) is further sleeved on the clamping buckle shaft (36b), and a clamping clamp is formed by the clamping buckle shaft (36b) arranged on the double rear buckle seat frame, the clamping buckle spring (36c) sleeved on the clamping buckle shaft (36b) and the clamping buckle (36) sleeved on the clamping buckle shaft (36b) together, so that clamping and self-locking are facilitated; the snap close (36) is also provided with a bolt for a conventional built-in lock with an internal compression spring; when the side grass discharging port (29) is closed, a left door leaf (357) with a vertical rotating shaft and arranged on the left side of the side grass discharging port (29) of the chassis of the lawn mower closes the side grass discharging port, and a right door leaf (358) with a vertical rotating shaft and arranged on the right side of the side grass discharging port (29) covers the left door leaf again to close the side grass discharging port in a double-safety way; the folding retractable roof (35j) and the folding retractable soft belt (35f) which are arranged above the side grass discharging port (29) are covered on the right door panel and the left door so as to close the side grass discharging port in a three-safety way; when the side grass discharging is needed, a folding retractable roof (35j) and a folding retractable soft belt (35f) arranged above the side grass discharging opening (29) are extended to be used as a side grass discharging cover, and the opened right door plate and the opened left door plate just serve as left and right guard plates of the side grass discharging cover.