CN102652474B

CN102652474B - Bush cutter comprising catalase hush tube, swirl sprayer and two-stroke multi-scavenging-port gasoline engine

Info

Publication number: CN102652474B
Application number: CN201110440104.0A
Authority: CN
Inventors: 苏克
Original assignee: Ningbo Daye Garden Equipment Co Ltd
Current assignee: Ningbo big leaf garden equipment Limited by Share Ltd
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2014-05-21
Anticipated expiration: 2031-12-07
Also published as: CN102652474A

Abstract

The invention relates to a bush cutter for cutting off shrubs and shaping flowers and trees in fields such as flower beds, yards, parks and road sides. According to the bush cutter comprising the improved multi-scavenging-port small-size two-stroke single-cylinder air-cooled gasoline engine, the original long rod is changed into the multi-honey-comb and catalase hush tube, the bush cutter comprises a transparent protective cover, a bush knife with an external peripheral knife edge and an internal peripheral knife edge, a long rod interface with a side flange and a side screw thread and being hard to loose, a vibration decreasing handle with a spiral spring or a wave-shaped spring, and a carburetor with an internal spiral vortex sprayer, the bush cutter is a novel bush cutter comprising the catalase hush tube, the swirl sprayer and the two-stroke multi-scavenging-port gasoline engine, and the bush cutter has the benefit effects that the discharge is low, a discharge port is far away from people, the safety performance can be realized, and the quality and the practicability are improved; and a new operation mode of the bush cutter can be further provided, so that the work semidiameter can be enlarged.

Description

There are catalyst hush tube and swirl sprayer and two to rush the brush saw of many scavenging ports gasoline engine

Technical field

The present invention relates to a kind of for flower bed, garden, shrub is cut off in the places such as park and road side, the brush saw of flowers and trees shaping, especially a kind of single-cylinder air-cooled petrol engine of small two-stroke that improves many scavenging ports that contains, 1E34-48, former stock changes the hush tube of many honeycombs and catalyst into, there is transparent protective cover, there is the bush knife of periphery blade and interior all blades, there is the loosening stock interface that is difficult for of limit flange and lateral filament button, there are spiral spring or wave spring and the handgrip of vibration damping, there is the carburetor of inside spin whirlpool nozzle, that a kind of novel have catalyst hush tube and swirl sprayer and two rush the brush saw of many scavenging ports engine.Perhaps can say, this is not by running in and put near people's engine direct, but by the innovative approach of indirectly discharging after the catalyst hush tube of a meter five, start a kind of new technical field that has catalyst hush tube and swirl sprayer and two to rush the brush saw of many scavenging ports engine.

Background technology

Brush saw is widely used in the places such as flower bed, garden, park and road side and cuts the grass on a lawn, tending [after young plantation, and tea place is upgraded, and herbage harvesting, returns crop stocks to the field, and flowers and trees shapings etc. cut off the operation of shrub branch; To carry out brush by the selected mode of people's hobby.Some operation pedestrian when liking and be accustomed to use brush saw, in the local time of particularly running into corner, uses and presses energetically mobile jib, does to such an extent that mobile jib is often determined not live and trace waves in location.Operate pedestrian's height difference, and be accustomed to taking the difference of operating angle, need mobile jib adjustable length, and the round type linkage of original location mobile jib leaves and easily causes the shortcoming that mobile jib trace rocks.Low vibratility and the low noise of low vibration brush saw, at the foamed plastics of stock plus-minus vibration, can have certain curative effect if consider; And vibration and the very large root of noise are not only in precision and the form and position tolerance of power and instrument, and be mechanism, catalyst hush tube, vibration-damped handle, bush knife coordinates with the harmony of engine, and low vibration and the low emission of pursuing brush saw are in fact hard nut to cracks of leaving over for a long time.Adopt two stroke engine can improve power per liter more than 50% with respect to four-stroke engine, but will take measures in discharge, this is a part of problem of the present invention; Brush saw is portable dam, wishes that power is gently little; If exert oneself less by four-stroke engine; If with booster, volume is large; If with the easy dirty dirty person of diesel engine; By the waste gas of putting that runs near people's engine direct, engine around, to hover, part waste gas can launched machine air filter and the suction of carburetor air mouth, and part waste gas can be sucked by people.

Summary of the invention

In order to make up the shortcoming due to the existing mechanism of brush saw, make mobile jib location micro-waving reliably and not, low vibratility and the low noise of brush saw are improved, improve and exert oneself and cutting effect, reduced exhaust, the invention provides a kind of improvement of brush saw, it is a kind of single-cylinder air-cooled petrol engine of small two-stroke that improves many scavenging ports that contains, as E134F, former stock changes the hush tube of many honeycombs and catalyst into, there is transparent protective cover, there is the bush knife of periphery blade and interior all blades, there is the loosening stock interface that is difficult for of limit flange and lateral filament button, there are spiral spring or wave spring and the handgrip of vibration damping, there is the carburetor of inside spin whirlpool nozzle, that a kind of novel have catalyst hush tube and swirl sprayer and two rush the brush saw of many scavenging ports gasoline engine.

Its usefulness of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine is: changed former cause and hovered around engine near people's the engine direct waste gas of putting that runs in, part waste gas can suck by launched machine carburetor air mouth, and the part waste gas situation that can be sucked by people, after catalyst hush tube, indirectly the method for discharge makes to discharge low and floss hole away from people, safer, and reduction of discharging reinforcement, there is transparent protective cover to be more convenient for observing, the new mode of operation of brush saw is also provided, expand operating radius, multinomial measure has promoted environmental protection quality and the usability of brush saw.

The present invention solves technical scheme and the method that its technical problem takes:

A kind of brush cutter that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine, containing engine 1E34-48 (1), hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3), 31 type hex nut M6 (4), PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9), the front aluminum pipe that connects

Manipulating handgrip assembly (11), control handle pipe (12), 13 band bullet pad hexagon socket cap head screw M5x25 (13), handgrip holder train wheel bridge (14), handgrip holder (15), left hand handle component (16), acrylonitrile-butadiene rubber handgrip shock-absorbing sleeve (17), handgrip holder lower plate (18), left handle pipe (19), five leaf nylon tubes

, power transmission shaft

Deep groove ball bearing (22), bullet pad 6 (23), hexagon socket cap head screw M6x23 (24), aluminium tube joint (25), locking knob (26), shaft adapter (27), rear aluminum pipe

4 hexagon socket cap head screw M5x12 (29), 4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33),Split washer 2.5 (34), protective cover holder (35), circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil blocks up (39), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42), gear-box (43), orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49), 3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52), 1 type hex nut M10 left-handed (53), nylon moving head (54), braces (55), hexagon nut with flange M5 (56), small blade (57), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), protective cover A (60), shielding support (61), hexagon socket cap head screw M5x35 (62), 2 tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65), left hand is (16-1), 1 type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4), and there is a waistband (66) of pallet (67), the auxiliary ball (68) that turns, catalyst hush tube (69), described engine, or with little to 1E32F, or with greatly to 1E48F, comprise starter assembly (F1), start driver plate assembly (F2), 2 oil sealings (F3), right case (F4), 2 deep groove ball bearings (F5), hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, the muffler ASSY (F7) of contact matchmaker's hush tube (69), silencer pad (F8), the right shock-reducing sleeve of fuel tank (F9), 2 retaining ring for piston pins (F10), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14), crank assemblby (F15), woodruff key (F16), cylinder block pad (F17), cylinder block (F18), 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19), engine outer cover (F20), recessed pan head tapping screw ST5 × 14 (F21), igniter assembly (F22), 2 cross fluting screw assemblies M4 × 20 (F23), spark plug (F24), without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), left box body (F27), 5 cross fluting screw assemblies M5 × 25 (F28), magnetic flywheel (F29), clutch assembly (F30), clutch disk (F31), circlip for shaft (F32), the left shock-absorbing sleeve L of fuel tank (F33), the right shock-absorbing sleeve R of fuel tank (F34), inserts bearing connection seat (F35), 3 cross fluting screw assemblies M5 × 20 (F36), train wheel bridge shock-absorbing sleeve (F37), lower plate shock-absorbing sleeve (F38), train wheel bridge (F39), lower plate (F40),2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41), flame-out wire clamp (F42), air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46), 2 M5 bullet pads (F47), 2 cross fluting coiled hair bullet screw M5 × 63 (F48), air filter lid (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50), 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56), PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63), 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64), 4 3-5NM cross fluting screw assemblies M5X18 (F65), its position is: described a kind of brush cutter that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine, the engine 1E34-48 (1) that it comprises, by described hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3), and 31 type hex nut M6 (4), with described before connect aluminum pipe (10) and be connected, before described, connect the outside of the pipe of aluminum pipe (10), by described PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9), and form braces part with braces (55), to braces is worn on single shoulder, also before described, connect aluminum pipe

on, be equiped with manipulating handgrip assembly (11), by controlling handle pipe (12), many band bullet pad hexagon socket cap head screw M5x25 (13), handgrip holder train wheel bridge (14), handgrip holder (15), left hand handle component (16), acrylonitrile-butadiene rubber handgrip shock-absorbing sleeve (17), handgrip holder lower plate (18), left handle pipe (19) forms jointly, before described, connect the inside of the pipe of aluminum pipe (10),Be equiped with five described leaf nylon tubes

and power transmission shaft

and deep groove ball bearing (22) is so that transmission, before described, connect aluminum pipe (10) by described bullet pad 6 (23), hexagon socket cap head screw M6x23 (24), aluminium tube joint (25), locking knob (26), shaft adapter (27), with described rear aluminum pipe

connect, and by 4 hexagon socket cap head screw M5x12 (29), 4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33), split washer 2.5 (34) and form spacing Handleset, in the end of described rear aluminum pipe (28), be equiped with described protective cover holder (35), and circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil blocks up (39), and many band bullet pad hexagon socket cap head screw M5x25 (13), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42), and gear-box (43), orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49),3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52); Note filling 1 described type hex nut M10 left-handed (53) for cutterhead; Or dress nylon moving head (54) is to replace disc cutterbar, and the cut-out described small blade (57) that line uses of beating the grass, by hexagon nut with flange M5 (56), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), be contained in described protective cover A (60) upper, and shielding support (61) and hexagon socket cap head screw M5x35 (62) will be installed; Cutterhead can multiselect, or 2 tooth disc cutterbars (63), or 4 tooth disc cutterbars (64), or 8 tooth disc cutterbars (65), so that the shrub of different cultivars is cut in choosing; Described left hand handle component (16), by left hand handle (16 1 1), 1 type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4) forms, and is arranged in left handle pipe (19); And there is the waistband (66) of pallet (67), can tie up to people's waist, pallet (67) and auxiliary ball (68) movable contact that turns, auxiliaryly turn ball (68) and be connected with engine outer cover (F20), to further lengthen cut coverage; Described catalyst hush tube (69), the gas outlet of connection muffler ASSY (F7), so that waste gas is discharged near cutter through aluminum pipe; Described engine, or with 1E30, or greatly to 48 cylinder diameter; Engine start part comprises starter assembly (F1), start driver plate assembly (F2), are furnished with 2 oil sealings (F3) and 2 deep groove ball bearings (F5), to be contained in rotationally on the described right case (F4) of engine; By hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, muffler ASSY (F7) and the silencer pad (F8) of contact matchmaker's hush tube (69), be fixed on cylinder block (F18); The right shock-reducing sleeve of fuel tank (F9) is housed on cylinder block (F18); 2 retaining ring for piston pins (F10) are housed in cylinder block (F18), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14) and crank assemblby (F15), establish woodruff key (F16) on bent axle; Cylinder block pad (F17) is mounted on cylinder block (F18); 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19) and recessed pan head tapping screw ST5 × 14 (F21) are fixed on engine outer cover (F20) on cylinder block (F18); Igniter assembly (F22) is fixing by 2 cross fluting screw assemblies M4 × 20 (F23); Spark plug (F24) is also contained on cylinder block (F18); On cylinder block (F18), put without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), and with fixing left box body (F27) in 5 cross fluting screw assemblies M5 × 25 (F28); Magnetic flywheel (F29) is contained on bent axle, and with clutch assembly (F30), clutch disk (F31) and circlip for shaft (F32) match;The right shock-absorbing sleeve R of the left shock-absorbing sleeve L of fuel tank (F33) and fuel tank (F34) is contained on described outer cover (20); Inserts bearing connection seat (F35) fixes by 3 cross fluting screw assemblies M5 × 20 (F36); Train wheel bridge shock-absorbing sleeve (F37) is housed on described connection seat (F35), lower plate shock-absorbing sleeve (F38), and train wheel bridge (F39), lower plate (F40), and clamp with 2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41); Flame-out wire clamp (F42) is also housed on described connection seat (F35); Air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46) is by 2 M5 bullet pads (F47) and 2 cross fluting coiled hair bullet screw M5 × 63 (F48) air filter lids (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50) composition air filter, and be packed on carburetor; 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56) composition carburetor; PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63) composition fuel tank; And 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64) is fixing described startup driver plate assembly (F2) use, be the use of fixing described starter assembly (F1) as for 4 3-5NM crosses fluting screw assemblies M5X18 (F65); It is characterized in that: the described waistband that has pallet (67) (66) is provided with pallet (67), on pallet (67), can place the auxiliary ball (68) that turns, and auxiliary turn ball (68) and be contained in external engine, or directly brush cutter engine is placed on to the operation that comes up of pallet (67) that waistband (66) is provided with; Pallet (67) and auxiliary ball (68) movable contact that turns, auxiliaryly turn ball (68) and be connected with engine outer cover (F20), to further lengthen cut coverage; Described catalase hush tube (69), one termination is led to the gas outlet of muffler ASSY (F7), and its another termination aluminum pipe so that waste gas is through described aluminum pipe, and is discharged near cutter.

As improvement, described catalase hush tube (69) is aluminum, has waste gas to pass through, to there is aluminium dioxide catalyst effect.

As improvement, described muffler ASSY (F7) is aluminum, has waste gas to pass through, to there is aluminium dioxide catalyst effect.

As improvement, connect aluminum pipe (10) and rear aluminum pipe (28) before described or separate, or an aluminum pipe, there is waste gas to pass through, to there is aluminium dioxide catalyst effect.

As improvement, five leaf nylon tubes in described aluminum pipe are established foam honeycomb body, and add catalyst catalyzer at foam honeycomb body, so that while having waste gas to pass through, have catalyst multiple catalyzing effect.

Be further used as improvement, 2 described tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65) are for selecting, be commonly referred to as disc cutterbar, it is provided with multiple outer cutting edges (641) in cutterhead periphery, so that the few cutter relieving of brush.

Be further used as improvement, 2 described tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65) are for selecting and be commonly referred to as disc cutterbar, it is provided with multiple inner cutter holes (642) in cutterhead periphery, so that card branch in brush not.

Be re-used as improvement, in described carburetor assembly (F56), improve the interior straight tube (70) of atomizer for there being the vortex spray bar of helicla flute (71), be beneficial to disperse mixed effect.

Be re-used as improvement, in described carburetor assembly (F56), improve the interior straight tube (70) of atomizer or have the import of vortex spray bar of helicla flute (71) for there being parabolical horn mouth (72), or conical section is as the horn mouth of archimedes curve, is beneficial to polymerization contaminated product effect.

Be re-used as improvement, upper in described left handle pipe (19), (19b) taken in the damping that is provided with close circle helical spring shape, so that further damping.

As improvement, this brush saw is not only used four-stroke engine, and adopts two stroke engine in more model, in order to improving power output; Employing contains the single-cylinder air-cooled petrol engine of small two-stroke that improves many scavenging ports, little of 1E32, greatly to 1E47.5, and multiplex 1E34F or 1E39F; Be furnished with the carburetor of inside spin whirlpool nozzle, then be equipped with novel catalyst hush tube and silencer, in the hope of comprehensive exploitation.

As improvement, adopt and have protective cover transparent or partially transparent (60), in order to convenient observation brush operation.

The invention has the beneficial effects as follows: comprehensively form one and can reach effectiveness in vibration suppression and have improvement, noise reduction has improved low vibration brush saw, improvement mobile jib trace rocks, the quality of improving product and usability and safety; Former stock changes the hush tube of many honeycombs and catalyst into, there is transparent protective cover, there is the bush knife of periphery blade and interior all blades, there are spiral spring or wave spring and the handgrip of vibration damping, having the carburetor of inside spin whirlpool nozzle, is that a kind of novel have catalyst hush tube and swirl sprayer and two rush the brush saw of many scavenging ports gasoline engine.Perhaps can say, this is not by running in and put near people's engine direct, but by the innovative approach of indirectly discharging after the catalyst hush tube of a meter five, start a kind of new technical field that has catalyst hush tube and swirl sprayer and two to rush the brush saw of many scavenging ports engine, favourable noise reduction and environmental protection.Having changed former cause hovers around engine near people's the engine direct waste gas of putting that runs in, part waste gas can suck by launched machine carburetor air mouth, and the part waste gas situation that can be sucked by people, after catalyst hush tube, indirectly the method for discharge makes to discharge low and floss hole away from people, safer, and reduction of discharging reinforcement, there is transparent protective cover to be more convenient for observing, the mode of operation of the new waistband that has pallet of brush saw is also provided, expanded operating radius, multinomial measure has promoted environmental protection quality and the usability of brush saw.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the schematic diagram of brush saw complete machine of the present invention.

Fig. 2 is the exploded perspective view of the first half of brush saw complete machine of the present invention.

Fig. 3 is the exploded perspective view of the latter half of brush saw complete machine of the present invention.

Fig. 4 is the schematic diagram that removes outer cover and protective cover of brush saw complete machine of the present invention.

Fig. 5 is the exploded perspective view of brush saw of the present invention with the engine containing catalyst hush tube.

Fig. 6 is the generalized section of the carburetter body containing atomizer of brush saw engine and carburetor assembly (F56).

Fig. 7 is the schematic perspective view of the carburetter body containing atomizer of brush saw engine and carburetor assembly (F56).

Fig. 8 is the schematic perspective view that brush saw is used the disc cutterbar that has inner cutter hole (642) and outer cutting edge (641).

Fig. 9 is the local schematic top plan view that brush saw is used the disc cutterbar that has inner cutter hole (642) and outer cutting edge (641).

As shown in Figures 1 to 9, in figure:

1. be engine 1E34-48; 2. be hexagon socket cap head screw M6x30; 3. be hexagon socket cap head screw M5x8; 4. are 31 type hex nut M6; 5. be PP wire clamp; 6. be PA suspension ring; 7. are 41 type non-metallic insert hexagonal locking nut M5; 8. are POM suspension ring holders; 9. be hexagon socket cap head screw M5x20; 10. before being, connect aluminum pipe

it is manipulating handgrip assembly; 12. be to control handle pipe; 13. be 13 band bullet pad hexagon socket cap head screw M5x25; The 14.th, handgrip holder train wheel bridge; 15. be handgrip holder; 16. be left hand handle component; The 17.th, acrylonitrile-butadiene rubber handgrip shock-absorbing sleeve; The 18.th, handgrip holder lower plate; 19. be left handle pipe; 20. is five leaf nylon tubes it is power transmission shaft it is deep groove ball bearing; The 23.th, bullet pad 6; 24. be hexagon socket cap head screw M6x23; The 25.th, aluminium tube joint; The 26.th, locking knob; The 27.th, shaft adapter; 28. be rear aluminum pipe

4 hexagon socket cap head screw M5x12; 30. is 4 spring washers 5; 31. be spacing handle spring; 32. be spacing handle lock; 33. be spacing handle; 34. be split washer 2.5; 35. be protective cover holder; 36. be circlip for hole 26; 37. be circlip for shaft 10; 38. be small arc-shaped gear; The 39.th, small arc-shaped gear oil is stifled; 40. be hexagon socket cap head screw M6x14; 41. be hexagon socket cap head screw M6x10; 42. be plain washer 6; The 43.th, gear-box; 44. be orthodrome gear; The 45.th, splined shaft; 46. be deep groove ball bearing 6002; 47. be circlip for hole 32; 48. be gear-box guard shield; 49. be spline pad; 50. is 3 tooth disc cutterbars; 51. be cutterhead pressing plate; 52. be cutterhead guard shield; 53. is that 1 type hex nut M10 is left-handed; 54. be nylon moving head; The 55.th, braces; 56. be hexagon nut with flange M5; The 57.th, small blade; The 58.th, knife rest; The 59.th, cross recess coiled hair is attacked screw ST4x14 in vain; 60. be protective cover A; The 61.th, shielding support; 62. be hexagon socket cap head screw M5x35; 63. is 2 tooth disc cutterbars; 64. is 4 tooth disc cutterbars; 65. is 8 tooth disc cutterbars; 16-1. is left hand handle; 16-2. is 1 type hex-head nut M5; 16-3. is Cross Recess Head Screw M5x20; 16-4. is Cross Recess Head Screw M5x30; The 66.th, there is the waistband of pallet; The 67.th, pallet; The 68.th, the auxiliary ball that turns; The 69.th, catalyst hush tube; The 70.th, the interior straight tube of atomizer; The 71.th, there is spiral fluted vortex spray bar; The 72.th, atomizer have a parabolical horn mouth; The 641.th, outer cutting edge; The 642.th, inner cutter hole; 19b. has the damping of close circle helical spring shape to take over (19b); F1. be starter assembly; F2. be to start driver plate assembly; F3. be 2 oil sealings; F4. be right case; F5. be 2 deep groove ball bearings; F6. be hexagonal cylindrical head plain cushion screw assemblies M5 × 45 in 2 moment of torsion 7-9NM; F7. be the muffler ASSY of contact matchmaker's hush tube (69); F8. be silencer pad; F9. be the right shock-reducing sleeve of fuel tank; F10. be 2 retaining ring for piston pins; F11. be piston pin; F12. be needle bearing; F13. be piston; F14. be piston ring; F15. be crank assemblby; F16. be woodruff key; F17. be cylinder block pad; F18. be cylinder block; F19. be 2 interior hexagonal cylindrical head screw assemblies M5 × 20; F20. be engine outer cover; F21. be recessed pan head tapping screw ST5 × 14; F22. be igniter assembly; F23. be 2 cross fluting screw assemblies M4 × 20; F24. be spark plug; F25. be without asbestos packing sheet mould assembling pad; F26. be 2 mould assembling alignment pins; F27. be left box body; F28. be 5 cross fluting screw assemblies M5 × 25; F29. be magnetic flywheel; F30. be clutch assembly; F31. be clutch disk; F32. be circlip for shaft; F33. be the left shock-absorbing sleeve L of fuel tank (F33); F34. be the right shock-absorbing sleeve R of fuel tank; F35. be inserts bearing connection seat; F36. be 3 cross fluting screw assemblies M5 × 20; F37. be train wheel bridge shock-absorbing sleeve; F38. be lower plate shock-absorbing sleeve; F39. be train wheel bridge; F40. be lower plate; F41. be 2 interior hexagonal cylindrical head screw assemblies M5 × 18; F42. be flame-out wire clamp; F43. be air filter seat; F44. be 2 air filter seat pad covers; F45. be soft polyurethane foam filter core; F46. be air filter pressing plate; F47. be 2 M5 bullet pads; F48. be 2 cross fluting coiled hair bullet screw M5 × 63; F49. be air filter lid; F50. be cross fluting coiled hair screw assemblies M5 × 14; F51. be 2 air inlet pipe pads; F52. be deflector; F53. be polyphenylene sulfide PPS air inlet pipe; F54. be grounding wire component; F55. be without asbestos packing sheet carburetor packing; F56. be carburetor assembly; F57. be PU yellow transparent oil return pipe; F58. be PU black oil inlet pipe; F59. be oil resistant butadiene-acrylonitrile rubber oil base; F60. be fuel filter assembly; F61. be oil pipe clip; F62. be HDPE blowing fuel tank; F63. be cap assembly of fuel tank; F64. be 5-7NM hexagon-headed bolt plain cushion combination M6X14; F65. be 4 3-5NM cross fluting screw assemblies M5X18.

Embodiment

In order to make up the phenomenon that mobile jib trace rocks due to the existing mechanism of brush saw, main the length of a kind of improvement for brush saw provided by the invention aluminium bar is packed in machine as catalyst hush tube, and use F41 screw fastening; Make waste gas by muffler ASSY and catalyst hush tube (69), then by long main aluminium bar, and from gap or the discharge of aperture gap of close the cutter of aluminium boom end.

According to customer requirement, the useful four-stroke engine of brush saw is as 139FA, and also useful two-stroke is as 1E34F.Can improve power per liter more than 50% with respect to four-stroke engine with two stroke engine, but will take measures in discharge; Brush saw is portable dam, wishes that power is gently little; If exert oneself less by four-stroke engine; Former stock changes the hush tube of many honeycombs and catalyst into, discharges from far-end; Its usefulness of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports engine is: changed former cause and hovered around engine near people's the engine direct waste gas of putting that runs in, part waste gas can suck by launched machine carburetor air mouth, and the part waste gas situation that can be sucked by people, after catalyst hush tube, indirectly the method for discharge makes to discharge low and floss hole away from people, safer, and reduce discharging reinforcement; There is transparent protective cover to be more convenient for observing, the mode of operation of the new pallet waistband of brush saw is also provided, while expanding operating radius, in other words ought run into large shrub, while reaching treetop, maybe to cut while having puddle to stop at a distance, use the lengthening mode that engine is put into pallet waistband, cutterhead is extended, and this is easily more stable operation also.Having transparent protective cover, is on the protective cover of cutter, and local transparent or all transparent can be observed better and cut off and operate, and reduces jam.Have the bush knife of periphery blade and interior all blades, improved significantly brush allow branch and jam.Also has the loosening stock interface that is difficult for of limit flange and lateral filament button, there are spiral spring or wave spring and the handgrip of vibration damping, there is the carburetor of inside spin whirlpool nozzle, this is that a kind of novel have catalyst hush tube and swirl sprayer and two rush the brush saw of many scavenging ports gasoline engine, and multinomial measure has promoted environmental protection quality and the usability of brush saw.

Because have catalyst hush tube and swirl sprayer and two to rush the brush cutter of many scavenging ports gasoline engine, containing engine 1E34-48 (1), hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3), 31 type hex nut M6 (4), PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9), the front aluminum pipe that connects

, power transmission shaft

4 hexagon socket cap head screw M5x12 (29), 4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33),Split washer 2.5 (34), protective cover holder (35), circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil blocks up (39), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42), gear-box (43), orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49), 3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52), 1 type hex nut M10 left-handed (53), nylon moving head (54), braces (55), hexagon nut with flange M5 (56), small blade (57), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), protective cover A (60), shielding support (61), hexagon socket cap head screw M5x35 (62), 2 tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65), left hand is (16-1), 1 type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4), and there is a waistband (66) of pallet (67), the auxiliary ball (68) that turns, catalyst hush tube (69), described engine, or with little to 1E32F, or with greatly to 1E48F, comprise starter assembly (F1), start driver plate assembly (F2), 2 oil sealings (F3), right case (F4), 2 deep groove ball bearings (F5), hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, the muffler ASSY (F7) of contact matchmaker's hush tube (69), silencer pad (F8), the right shock-reducing sleeve of fuel tank (F9), 2 retaining ring for piston pins (F10), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14), crank assemblby (F15), woodruff key (F16), cylinder block pad (F17), cylinder block (F18), 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19), engine outer cover (F20), recessed pan head tapping screw ST5 × 14 (F21), igniter assembly (F22), 2 cross fluting screw assemblies M4 × 20 (F23), spark plug (F24), without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), left box body (F27), 5 cross fluting screw assemblies M5 × 25 (F28), magnetic flywheel (F29), clutch assembly (F30), clutch disk (F31), circlip for shaft (F32), the left shock-absorbing sleeve L of fuel tank (F33), the right shock-absorbing sleeve R of fuel tank (F34), inserts bearing connection seat (F35), 3 cross fluting screw assemblies M5 × 20 (F36), train wheel bridge shock-absorbing sleeve (F37), lower plate shock-absorbing sleeve (F38), train wheel bridge (F39), lower plate (F40),2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41), flame-out wire clamp (F42), air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46), 2 M5 bullet pads (F47), 2 cross fluting coiled hair bullet screw M5 × 63 (F48), air filter lid (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50), 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56), PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63), 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64), 4 3-5NM cross fluting screw assemblies M5X18 (F65), its position is: described a kind of brush cutter that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports engine, the engine 1E34-48 (1) that it comprises, by described hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3), and 31 type hex nut M6 (4), with described before connect aluminum pipe (10) and be connected, before described, connect the outside of the pipe of aluminum pipe (10), by described PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9), and form braces part with braces (55), to braces is worn on single shoulder, also before described, connect aluminum pipe

And power transmission shaft

And deep groove ball bearing (22) is so that transmission; Before described, connect aluminum pipe (10) by described bullet pad 6 (23), hexagon socket cap head screw M6x23 (24), aluminium tube joint (25), locking knob (26), shaft adapter (27), with described rear aluminum pipe

Connect, and by 4 hexagon socket cap head screw M5x12 (29), 4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33), split washer 2.5 (34) and form spacing Handleset; Or, the method that before and after adopting, aluminum pipe merges, with an aluminum pipe, and power transmission shaft also uses only one, and benefit is to be connected firmly, but transportation clearance is long, can select by customer requirement; In the end of described rear aluminum pipe (28), be equiped with described protective cover holder (35), and circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil blocks up (39), and many band bullet pad hexagon socket cap head screw M5x25 (13), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42), and gear-box (43)Orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49), 3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52); Note filling 1 described type hex nut M10 left-handed (53) for cutterhead; Or dress nylon moving head (54) is to replace disc cutterbar, and the cut-out described small blade (57) that line uses of beating the grass, by hexagon nut with flange M5 (56), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), be contained in described protective cover A (60) upper, and shielding support (61) and hexagon socket cap head screw M5x35 (62) will be installed; Beat the grass line or available special-shaped wire, or with the spiral special-shaped wire having with cutting edge cross section; Cutterhead can multiselect, or 2 tooth disc cutterbars (63), or 4 tooth disc cutterbars (64), or 8 tooth disc cutterbars (65), so that the shrub of different cultivars is cut in choosing; Described left hand handle component (16), by left hand handle (16-1), 1 type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4) forms, and is arranged in left handle pipe (19); And there is the waistband (66) of pallet (67), can tie up to people's waist, pallet (67) and auxiliary ball (68) movable contact that turns, auxiliaryly turn ball (68) and be connected with engine outer cover (F20), to further lengthen cut coverage; Described catalyst hush tube (69), the gas outlet of connection muffler ASSY (F7), so that waste gas is discharged near cutter through aluminum pipe, if aluminum pipe dislikes little by near the gap of discharging cutter, also can open multiple apertures; Described engine, or with 1E30, or greatly to 48 cylinder diameter; Engine start part comprises starter assembly (F1), start driver plate assembly (F2), are furnished with 2 oil sealings (F3) and 2 deep groove ball bearings (F5), to be contained in rotationally on the described right case (F4) of engine; By hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, muffler ASSY (F7) and the silencer pad (F8) of contact matchmaker's hush tube (69), be fixed on cylinder block (F18); The right shock-reducing sleeve of fuel tank (F9) is housed on cylinder block (F18); 2 retaining ring for piston pins (F10) are housed in cylinder block (F18), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14) and crank assemblby (F15), establish woodruff key (F16) on bent axle; Cylinder block pad (F17) is mounted on cylinder block (F18); 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19) and recessed pan head tapping screw ST5 × 14 (F21) are fixed on engine outer cover (F20) on cylinder block (F18); Igniter assembly (F22) is fixing by 2 cross fluting screw assemblies M4 × 20 (F23); Spark plug (F24) is also contained on cylinder block (F18);On cylinder block (F18), put without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), and with fixing left box body (F27) in 5 cross fluting screw assemblies M5 × 25 (F28); Magnetic flywheel (F29) is contained on bent axle, and with clutch assembly (F30), clutch disk (F31) and circlip for shaft (F32) match; The right shock-absorbing sleeve R of the left shock-absorbing sleeve L of fuel tank (F33) and fuel tank (F34) is contained on described outer cover (20); Inserts bearing connection seat (F35) fixes by 3 cross fluting screw assemblies M5 × 20 (F36); Train wheel bridge shock-absorbing sleeve (F37) is housed on described connection seat (F35), lower plate shock-absorbing sleeve (F38), and train wheel bridge (F39), lower plate (F40), and clamp with 2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41); Flame-out wire clamp (F42) is also housed on described connection seat (F35); Air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46) is by 2 M5 bullet pads (F47) and 2 cross fluting coiled hair bullet screw M5 × 63 (F48) air filter lids (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50) composition air filter, and be packed on carburetor; 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56) composition carburetor; PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63) composition fuel tank; And 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64) is fixing described startup driver plate assembly (F2) use, be the use of fixing described starter assembly (F1) as for 4 3-5NM crosses fluting screw assemblies M5X18 (F65); It is characterized in that: the described waistband that has pallet (67) (66) is provided with pallet (67), on pallet (67), can place the auxiliary ball (68) that turns, and auxiliary turn ball (68) and be contained in external engine, or directly brush cutter engine is placed on to the operation that comes up of pallet (67) that waistband (66) is provided with; Pallet (67) and auxiliary ball (68) movable contact that turns, auxiliary turn ball (68) and be connected with engine outer cover (F20), sometimes cut the shrub of little distant place, also brush cutter engine can be placed on to waist, to further lengthen cut coverage.Described catalyst hush tube (69), one termination is led to the gas outlet of muffler ASSY (F7), and its another termination aluminum pipe, therefore waste gas, through the aluminum pipe of described length, and is discharged near cutter.

As improvement, described catalyst hush tube (69) is aluminum, has waste gas to pass through, to there is aluminium dioxide catalyst effect.One meter of exhaust steam passage how long from engine to cutter portion, all can add various catalyst, in the hope of environmental protection, noise abatement, fall row's effect.

The invention has the beneficial effects as follows: comprehensively form one and can reach effectiveness in vibration suppression and have improvement, noise reduction has improved low vibration brush saw, improvement mobile jib trace rocks, the quality of improving product and usability and safety; Former stock changes the hush tube of many honeycombs and catalyst into, there is transparent protective cover, there is the bush knife of periphery blade and interior all blades, there are spiral spring or wave spring and the handgrip of vibration damping, having the carburetor of inside spin whirlpool nozzle, is that a kind of novel have catalyst hush tube and swirl sprayer and two rush the brush saw of many scavenging ports engine.Perhaps can say, this is not by running in and put near people's engine direct, but by the innovative approach of indirectly discharging after the catalyst hush tube of a meter five, start a kind of new technical field that has catalyst hush tube and swirl sprayer and two to rush the brush saw of many scavenging ports gasoline engine, favourable noise reduction and environmental protection.Having changed former cause hovers around engine near people's the engine direct waste gas of putting that runs in, part waste gas can suck by launched machine carburetor air mouth, and the part waste gas situation that can be sucked by people, after catalyst hush tube, indirectly the method for discharge makes to discharge low and floss hole away from people, safer, and reduction of discharging reinforcement, there is transparent protective cover to be more convenient for observing, the mode of operation of the new waistband that has pallet of brush saw is also provided, expanded operating radius, multinomial measure has promoted environmental protection quality and the usability of brush saw.

Claims

1. there are catalyst hush tube and swirl sprayer and two to rush the brush cutter of many scavenging ports gasoline engine, containing engine (1), hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3), 31 type hex nut M6 (4), PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9), the front aluminum pipe that connects Manipulating handgrip assembly (11), control handle pipe (12), 13 band bullet pad hexagon socket cap head screw M5x25 (13), handgrip holder train wheel bridges (14), handgrip holder (15), left hand handle component (16), acrylonitrile-butadiene rubber handgrip shock-absorbing sleeve (17), handgrip holder lower plate (18), left handle pipe (19), five leaf nylon tubes

Power transmission shaft Deep groove ball bearing (22), bullet pad 6 (23), hexagon socket cap head screw M6x23 (24), aluminium tube joint (25), locking knob (26), shaft adapter (27), rear aluminum pipe

4 hexagon socket cap head screw M5x12 (29),4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33), split washer 2.5 (34), protective cover holder (35), circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil blocks up (39), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42), gear-box (43), orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49), 3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52), 1 type hex nut M10 left-handed (53), nylon moving head (54), braces (55), hexagon nut with flange M5 (56), small blade (57), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), protective cover A (60), shielding support (61), hexagon socket cap head screw M5x35 (62), 2 tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65), left hand is (16-1), I type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4), and have the waistband (66) of pallet (67), the auxiliary ball (68) that turns, catalyst hush tube (69), described engine, comprises starter assembly (F1), start driver plate assembly (F2), 2 oil sealings (F3), right case (F4), 2 deep groove ball bearings (F5), hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, the muffler ASSY (F7) of catalase hush tube (69), silencer pad (F8), the right shock-reducing sleeve of fuel tank (F9), 2 retaining ring for piston pins (F10), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14), crank assemblby (F15), woodruff key (F16), cylinder block pad (F17), cylinder block (F18), 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19), engine outer cover (F20), recessed pan head tapping screw ST5 × 14 (F21), igniter assembly (F22), 2 cross fluting screw assemblies M4 × 20 (F23), spark plug (F24), without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), left box body (F27), 5 cross fluting screw assemblies M5 × 25 (F28), magnetic flywheel (F29), clutch assembly (F30), clutch disk (F31), circlip for shaft (F32), the left shock-absorbing sleeve L of fuel tank (F33), the right shock-absorbing sleeve R of fuel tank (F34), inserts bearing connection seat (F35), 3 cross fluting screw assemblies M5 × 20 (F36), train wheel bridge shock-absorbing sleeve (F37), lower plate shock-absorbing sleeve (F38),Train wheel bridge (F39), lower plate (F40), 2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41), flame-out wire clamp (F42), air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46), 2 M5 bullet pads (F47), 2 cross fluting coiled hair bullet screw M5 × 63 (F48), air filter lid (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50), 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56), PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63), 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64), 4 3-5NM cross fluting screw assemblies M5X18 (F65), its position is: described a kind of brush cutter that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine, its engine comprising (1), by described hexagon socket cap head screw M6x30 (2), hexagon socket cap head screw M5x8 (3) and 31 type hex nut M6 (4), with described before meet aluminum pipe 750x φ 26x1.5 (10) and be connected, before described, connect the outside of the pipe of aluminum pipe 750x φ 26x1.5 (10), by described PP wire clamp (5), PA suspension ring (6), 41 type non-metallic insert hexagonal locking nut M5 (7), POM suspension ring holder (8), hexagon socket cap head screw M5x20 (9) and form braces part with braces (55), to braces is worn on single shoulder, also before described, connect aluminum pipe

on, be equiped with manipulating handgrip assembly (11), that handgrip holder train wheel bridge (14), handgrip holder (15), left hand handle component (16), acrylonitrile-butadiene rubber handgrip shock-absorbing sleeve (17), handgrip holder lower plate (18), left handle pipe (19) form jointly by controlling handle pipe (12), many band bullet pad hexagon socket cap head screw M5x25 (13), before described, connect the inside of the pipe of aluminum pipe 750x φ 26x1.5 (10),Be equiped with five described leaf nylon tubes

and power transmission shaft

and deep groove ball bearing (22) is so that transmission, before described, meet aluminum pipe 750x φ 26x1.5 (10) by described bullet pad 6 (23), hexagon socket cap head screw M6x23 (24), aluminium tube joint (25), locking knob (26), shaft adapter (27) and described rear aluminum pipe connect, and form spacing Handleset by 4 hexagon socket cap head screw M5x12 (29), 4 spring washers 5 (30), spacing handle spring (31), spacing handle lock (32), spacing handle (33), split washers 2.5 (34), in the end of described rear aluminum pipe 740x φ 26x1.5 (28), be equiped with described protective cover holder (35) and circlip for hole 26 (36), circlip for shaft 10 (37), small arc-shaped gear (38), small arc-shaped gear oil stifled (39) and many band bullet pad hexagon socket cap head screw M5x25 (13), hexagon socket cap head screw M6x14 (40), hexagon socket cap head screw M6x10 (41), plain washer 6 (42) and gear-box (43), orthodrome gear (44), splined shaft (45), deep groove ball bearing 6002 (46), circlip for hole 32 (47), gear-box guard shield (48), spline pad (49), 3 tooth disc cutterbars (50), cutterhead pressing plate (51), cutterhead guard shield (52), note filling 1 described type hex nut M10 left-handed (53) for cutterhead, or fill nylon moving head (54) to replace disc cutterbar,And the cut-out described small blade (57) that line uses of beating the grass, by hexagon nut with flange M5 (56), knife rest (58), cross recessed pan head tapping screw ST4x14 (59), to be contained in described protective cover A (60) upper, and shielding support (61) and hexagon socket cap head screw M5x35 (62) will be installed; Cutterhead can multiselect, or 2 tooth disc cutterbars (63) or 4 tooth disc cutterbars (64) or 8 tooth disc cutterbars (65), so that the shrub of different cultivars is cut in choosing; Described left hand handle component (16), by left hand, (16-1), 1 type hex-head nut M5 (16-2), Cross Recess Head Screw M5x20 (16-3), Cross Recess Head Screw M5x30 (16-4) are formed, be arranged in left handle pipe (19); Described catalyst hush tube (69), the gas outlet of connection muffler ASSY (F7), so that waste gas is discharged near cutter through aluminum pipe; Engine start part comprises starter assembly (F1), starts driver plate assembly (F2), are furnished with 2 oil sealings (F3) and 2 deep groove ball bearings (F5), to be contained in rotationally on the described right case (F4) of engine; By hexagonal cylindrical head plain cushion screw assemblies M5 × 45 (F6) in 2 moment of torsion 7-9NM, muffler ASSY (F7) and the silencer pad (F8) of contact matchmaker's hush tube (69), be fixed on cylinder block (F18); The right shock-reducing sleeve of fuel tank (F9) is housed on cylinder block (F18); 2 retaining ring for piston pins (F10), piston pin (F11), needle bearing (F12), piston (F13), piston ring (F14) and crank assemblby (F15) are housed in cylinder block (F18), on bent axle, establish woodruff key (F16); Cylinder block pad (F17) is mounted on cylinder block (F18); 2 interior hexagonal cylindrical head screw assemblies M5 × 20 (F19) and recessed pan head tapping screw ST5 × 14 (F21) are fixed on engine outer cover (F20) on cylinder block (F18); Igniter assembly (F22) is fixing by 2 cross fluting screw assemblies M4 × 20 (F23); Spark plug (F24) is also contained on cylinder block (F18); On cylinder block (F18), put without asbestos packing sheet mould assembling pad (F25), 2 mould assembling alignment pins (F26), also fix left box body (F27) with 5 crosses fluting screw assemblies M5 × 25 (F28); Magnetic flywheel (F29) is contained on bent axle, and matches with clutch assembly (F30), clutch disk (F31) and circlip for shaft (F32); The right shock-absorbing sleeve R of the left shock-absorbing sleeve L of fuel tank (F33) and fuel tank (F34) is contained on described outer cover (20); Inserts bearing connection seat (F35) fixes by 3 cross fluting screw assemblies M5 × 20 (F36); Train wheel bridge shock-absorbing sleeve (F37), lower plate shock-absorbing sleeve (F38) and train wheel bridge (F39), lower plate (F40) are housed on described connection seat (F35), also clamp with 2 interior hexagonal cylindrical head screw assemblies M5 × 18 (F41);Flame-out wire clamp (F42) is also housed on described connection seat (F35); Air filter seat (F43), 2 air filter seat pad covers (F44), soft polyurethane foam filter core (F45), air filter pressing plate (F46) are formed air filter, and are packed on carburetor by 2 M5 bullet pads (F47) and 2 cross fluting coiled hair bullet screw M5 × 63 (F48) air filter lids (F49), cross fluting coiled hair screw assemblies M5 × 14 (F50); 2 air inlet pipe pads (F51), deflector (F52), polyphenylene sulfide PPS air inlet pipe (F53), grounding wire component (F54), without asbestos packing sheet carburetor packing (F55), carburetor assembly (F56) composition carburetor; PU yellow transparent oil return pipe (F57), PU black oil inlet pipe (F58), oil resistant butadiene-acrylonitrile rubber oil base (F59), fuel filter assembly (F60), oil pipe clip (F61), HDPE blowing fuel tank (F62), cap assembly of fuel tank (F63) composition fuel tank; And 5-7NM hexagon-headed bolt plain cushion combination M6X14 (F64) is fixing described startup driver plate assembly (F2) use, be the use of fixing described starter assembly (F1) as for 4 3-5NM crosses fluting screw assemblies M5X18 (F65); It is characterized in that: the described waistband that has pallet (67) (66) is provided with pallet (67), on pallet (67), can place the auxiliary ball (68) that turns, and auxiliary turn ball (68) and be contained in external engine, or directly brush cutter engine is placed on to the operation that comes up of pallet (67) that waistband (66) is provided with; Pallet (67) and auxiliary ball (68) movable contact that turns, auxiliaryly turn ball (68) and be connected with engine outer cover (F20), to further lengthen cut coverage; Described catalyst hush tube (69), one termination is led to the gas outlet of muffler ASSY (F7), and its another termination aluminum pipe so that waste gas is through described aluminum pipe, and is discharged near cutter.

2. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, is characterized in that: described catalyst hush tube (69) is aluminum, has waste gas to pass through, to there is aluminium dioxide catalyst effect.

3. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, is characterized in that: described muffler ASSY (F7) is aluminum, to there is aluminium dioxide catalyst effect.

4. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: before described, meet aluminum pipe 750x φ 26x1.5 (10) and rear aluminum pipe 740x φ 26x1.5 (28) or separate, or an aluminum pipe, there is waste gas to pass through.

5. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: the five leaf nylon tubes that connect before described in aluminum pipe are established foam honeycomb body, and add catalyst catalyzer at foam honeycomb body so that waste gas by time have a catalyst multiple catalyzing effect.

6. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: described 2 tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65) supply to select, be commonly referred to as disc cutterbar, it is provided with multiple outer cutting edges (641) in cutterhead periphery, so that the few cutter relieving of brush.

7. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: described 2 tooth disc cutterbars (63), 4 tooth disc cutterbars (64), 8 tooth disc cutterbars (65) supply to select and be commonly referred to as disc cutterbar, it is provided with multiple inner cutter holes (642) in cutterhead periphery, so that card branch in brush not.

8. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: in described left handle pipe (19), (19b) taken in the damping that is provided with close circle helical spring shape, so that damping.

9. a kind of brush saw that has catalyst hush tube and swirl sprayer and two to rush many scavenging ports gasoline engine according to claim 1, it is characterized in that: described protective cover A (60) is transparent, or partially transparent, in order to convenient observation brush operation.