CN211306577U

CN211306577U - Semi-automatic chain saw of making an uproar falls

Info

Publication number: CN211306577U
Application number: CN201921761430.XU
Authority: CN
Inventors: 赵建军; 赵敏; 赵建兵
Original assignee: Nantong Mike Bonway Hardware Co ltd
Current assignee: Nantong Mike Bonway Hardware Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-08-21
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a semi-automatic chain saw of making an uproar falls, including shell, handle, chain saw and gasoline engine, louvre and handrail have been seted up to the front end surface of shell, and the handrail sets up in the right side of louvre, the bottom of handrail is equipped with the damper cylinder, the right side of shell is equipped with amortization cover and chain saw, and the chain saw sets up in the below of amortization cover, the left side integration of shell is connected with the handle, the rear end surface of shell has guard plate and protective cover through the bolt fastening, the protective cover sets up in the below of guard plate, the gasoline engine passes through the inboard of screw fixation in shell, the output of gasoline engine has first guide pulley through the coupling joint, the surface cover of first guide pulley is equipped with the belt, the bottom inboard of belt is equipped with the second. The utility model provides high noise reduction effect, the handle has the damping structure, alleviates user's hand fatigue, is convenient for adjust chain saw elasticity.

Description

Semi-automatic chain saw of making an uproar falls

Technical Field

The utility model relates to a chain saw technical field specifically is a semi-automatic chain saw of making an uproar falls.

Background

The chain saw is one kind of chain saw, and the chain saw is divided into two kinds, an electric chain saw and a chain saw according to different power supplies, and the chain saw is a portable saw using a gasoline engine as power.

Present partial chain saw is when using, the gasoline engine during operation, reciprocating motion can be done to inside piston, the cylinder of piston work department outwards gives off the noise, the chain saw is when sawing wood simultaneously, also can produce the noise because of the friction, double noise can cause noise pollution for the chain saw use, present partial chain saw, only rely on thickening shell to give sound insulation and reduce the noise propagation, however this kind of mode not only increases plastics use cost, and the noise reduction effect is poor, present chain saw is at the during operation, need handheld handle to control the chain saw, however, present chain saw handle does not have the damping structure, the vibration that gasoline engine work produced can pass through the handle and reach user's hand, long-term use, can cause hand fatigue, consequently need urgently to design a semi-automatic chain saw who makes an uproar and falls to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a semi-automatic chain saw of making an uproar falls to the noise reduction effect who proposes in solving above-mentioned background art is poor, does not have handle damping structure, long-term the use, can cause the tired problem of hand.

In order to achieve the above object, the utility model provides a following technical scheme: a noise-reducing semi-automatic chain saw comprises a shell, a handle, a chain saw and a gasoline engine, wherein heat dissipation holes and a handrail are formed in the outer surface of the front end of the shell, the handrail is arranged on the right side of the heat dissipation holes, a shock absorption cylinder is arranged at the bottom end of the handrail, a silencing cover and the chain saw are arranged on the right side of the shell, the chain saw is arranged below the silencing cover, the handle is integrally connected to the left side of the shell, a protection plate and a protection cover are fixed to the outer surface of the rear end of the shell through bolts, the protection cover is arranged below the protection plate, the gasoline engine is fixed to the inner side of the shell through screws, the output end of the gasoline engine is connected with a first guide wheel through a coupler, a belt is sleeved on the outer surface of the first guide wheel, a second guide wheel is arranged on the inner side of, the inner wall of shell has seted up the spout, the left side of mount is run through and is provided with the lead screw, the internal surface welding of shell has the stud.

Preferably, the shock tube includes cover storehouse, spring and connecting rod, the shock tube welds in the bottom of handrail, the inboard of shock tube is seted up in the cover storehouse, spring and connecting rod all set up in the inboard in cover storehouse, and the connecting rod sets up in the bottom of spring.

Preferably, the number of damper cylinder is both sides, and two sets of damper cylinder welds respectively in the both sides bottom of handrail, the elastic construction is constituteed with the spring to the connecting rod, the bottom of connecting rod is fixed in the surface of shell through the bolt.

Preferably, the noise reduction cover comprises a sound transmission cover, a sound transmission hole, honeycomb cotton and a through hole, the periphery of the sound transmission cover is embedded in the inner surface of the noise reduction cover, the sound transmission hole penetrates through the inner surface of the sound transmission cover, and the honeycomb cotton is sleeved on the outer surface of the sound transmission cover.

Preferably, the through hole penetrates through the outer surface of the right side of the silencing cover and is communicated with the sound transmission hole.

Preferably, the chain wheel is engaged with the chain saw, the chain wheel and the fixing frame form a rotating structure, the screw rod penetrates through the inner side of the stud, and the screw rod is rotatably connected with the stud through threads.

Compared with the prior art, the beneficial effects of the utility model are that: the semi-automatic chain saw with the noise reduction function improves the noise reduction effect, and the handle has a vibration reduction structure, so that the hand fatigue of a user is relieved, and the tightness of the chain saw is convenient to adjust;

(1) the vibration damping cylinder is welded at the bottom end of the handrail, the connecting rod is fixedly connected with the shell through the bolt, so that vibration generated by the gasoline engine in the shell can be transmitted to the connecting rod, the connecting rod contracts towards the inside of the vibration damping cylinder, and the vibration force on the connecting rod is reduced by utilizing the deformation of the spring, so that the force of transmitting the vibration to the hand of a user can be reduced, and the effect of relieving the hand fatigue of the user is further achieved;

(2) the right side of the shell is additionally provided with the silencing cover, so that the silencing cover covers the piston end of the gasoline engine, most of noise generated by the gasoline engine can be transmitted into the silencing cover, and then is absorbed and discharged through the sound transmission holes, and the noise can be converted into heat energy for dissipation through left and right collision friction in the holes by utilizing the micro-pores in the honeycomb cotton, so that the noise reduction effect is improved;

(3) the chain wheel is installed in the fixing frame through the rotating shaft, the chain wheel can rotate in the fixing frame, the screw rod is stirred to rotate in the screw pile, the screw rod can be moved left and right, the fixing frame can be driven to move left and right, the chain saw is tightened and loosened by the aid of the fixing frame driving the chain wheel, and accordingly the effect of conveniently adjusting the tightness of the chain saw is achieved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a schematic rear sectional view of the structure of the present invention;

FIG. 4 is a schematic cross-sectional view of the shock tube of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

fig. 7 is a schematic top view of the fixing frame of fig. 6 according to the present invention.

In the figure: 1. a housing; 2. a grip; 3. heat dissipation holes; 4. a handrail; 5. a protection plate; 6. a damper cylinder; 601. sleeving a bin; 602. a spring; 603. a connecting rod; 7. a sound deadening hood; 701. a sound-transmitting cover; 702. a sound transmission hole; 703. honeycomb cotton; 704. a through hole; 8. a chain saw; 9. a gasoline engine; 10. a first guide wheel; 11. a belt; 12. a protective cover; 13. a sprocket; 14. a fixed mount; 15. stud piling; 16. a screw rod; 17. a second guide wheel; 18. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides an embodiment: a noise-reducing semi-automatic chain saw comprises a shell 1, a handle 2, a chain saw 8 and a gasoline engine 9, wherein a heat dissipation hole 3 and a handrail 4 are formed in the outer surface of the front end of the shell 1, the handrail 4 is arranged on the right side of the heat dissipation hole 3, a damping cylinder 6 is arranged at the bottom end of the handrail 4, the damping cylinder 6 comprises a sleeve bin 601, a spring 602 and a connecting rod 603, the damping cylinder 6 is welded at the bottom end of the handrail 4, the sleeve bin 601 is arranged on the inner side of the damping cylinder 6, the spring 602 and the connecting rod 603 are both arranged on the inner side of the sleeve bin 601, the connecting rod 603 is arranged at the bottom end of the spring 602, the damping cylinders 6 are arranged on two sides, the two groups of damping cylinders 6 are respectively welded at the bottom ends of the two sides of the handrail 4, the connecting rod 603 and the spring 602 form an elastic structure, the bottom end of the connecting rod 603 is fixed on the, the link 603 is retracted into the damper cylinder 6, and the vibration force on the link 603 can be reduced by the deformation of the spring 602.

The right side of the shell 1 is provided with a silencing cover 7 and a chain saw 8, the chain saw 8 is arranged below the silencing cover 7, the silencing cover 7 comprises a sound transmitting cover 701, a sound transmitting hole 702, honeycomb cotton 703 and a through hole 704, the periphery of the sound transmitting cover 701 is embedded in the inner surface of the silencing cover 7, the sound transmitting hole 702 penetrates through the inner surface of the sound transmitting cover 701, the honeycomb cotton 703 is sleeved on the outer surface of the sound transmitting cover 701, the through hole 704 penetrates through the outer surface of the right side of the silencing cover 7, the through hole 704 is communicated with the sound transmitting hole 702, the sound transmitting hole 702 is uniformly opened on the inner surface of the sound transmitting cover 701, the opening caliber of the sound transmitting hole 702 on the right side surface of the sound transmitting cover 701 is smaller than that of the inner surface of the sound transmitting cover 701, so that most noise can firstly enter the honeycomb cotton 703 through the sound transmitting hole 702 on, through the fine pores in the honeycomb cotton 703, the noise can be converted into heat energy for dissipation by the left and right impact friction in the pores.

The left side of the shell 1 is integrally connected with a handle 2, the outer surface of the rear end of the shell 1 is fixed with a protection plate 5 and a protection cover 12 through bolts, the protection cover 12 is arranged below the protection plate 5, a gasoline engine 9 is fixed on the inner side of the shell 1 through screws, the output end of the gasoline engine 9 is connected with a first guide wheel 10 through a coupler, the outer surface of the first guide wheel 10 is sleeved with a belt 11, the inner side of the bottom end of the belt 11 is provided with a second guide wheel 17, the inner side of the second guide wheel 17 is connected with a fixed frame 14 through a rotating shaft, the inner side of the fixed frame 14 is connected with a chain wheel 13 through a rotating shaft, the inner wall of the shell 1 is provided with a sliding chute 18, the left side of the fixed frame 14 is provided with a lead screw 16 in a penetrating manner, the inner surface of the shell 1 is welded, when the screw rod 16 rotates in the stud 15, the screw rod 16 can move left and right in the stud 15 to drive the fixing frame 14 to move left and right, so that the fixing frame 14 drives the chain wheel 13 to tighten and loosen the chain saw 8, the rear end of the rotating shaft connected with the second guide wheel 17 is arranged in the sliding groove 18, and as shown in fig. 7, the rotating shaft connected with the second guide wheel 17 can slide in the sliding groove 18.

The working principle is as follows: when the tree cutting machine is used, a user holds the handle 2 with one hand, holds the handrail 4 with the other hand to control the cutting direction of the chain saw 8 to cut trees, the gasoline engine 9 is ignited by a spark plug on the gasoline engine 9 to work, the gasoline engine 9 can drive the first guide wheel 10 to rotate, the first guide wheel 10 drives the second guide wheel 17 to rotate through the belt 11, the second guide wheel 17 drives the chain wheel 13 to rotate through the rotating shaft, and the chain wheel 13 drives the chain saw 8 to rotate to cut the trees;

when the gasoline engine 9 works, most of noise generated can be transmitted into the sound transmitting cover 701, and then absorbed and discharged through the sound transmitting holes 702, and the noise can be converted into heat energy for dissipation by using the micro-pores in the honeycomb cotton 703 through left-right collision friction in the pores, so that the working noise of the gasoline engine 9 is reduced;

when the gasoline engine 9 works, vibration is generated, the damping cylinder 6 is welded at the bottom end of the handrail 4, the connecting rod 603 is fixedly connected with the shell 1 through a bolt, so that the vibration generated by the gasoline engine 9 in the shell 1 during working can be transmitted to the connecting rod 603, the connecting rod 603 is contracted towards the inside of the damping cylinder 6, the vibration force on the connecting rod 603 is reduced by utilizing the deformation of the spring 602, the force of transmitting the vibration to the hand of a user is reduced, and the hand fatigue of the user is relieved;

when the tightness of the chain saw 8 needs to be adjusted, the screw rod 16 only needs to be stirred to rotate in the stud 15, the screw rod 16 can be moved left and right, the fixing frame 14 can be driven to move left and right, the fixing frame 14 drives the chain wheel 13 to tighten and loosen the chain saw 8, the tightness of the chain saw 8 can be adjusted, and the adjusting device is practical.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a semi-automatic chain saw of making an uproar falls, includes shell (1), handle (2), chain saw (8) and gasoline engine (9), its characterized in that: the radiating hole (3) and the handrail (4) are formed in the outer surface of the front end of the shell (1), the handrail (4) is arranged on the right side of the radiating hole (3), the damping cylinder (6) is arranged at the bottom end of the handrail (4), the silencing cover (7) and the chain saw (8) are arranged on the right side of the shell (1), the chain saw (8) is arranged below the silencing cover (7), the handle (2) is integrally connected to the left side of the shell (1), the protective plate (5) and the protective cover (12) are fixed to the outer surface of the rear end of the shell (1) through bolts, the protective cover (12) is arranged below the protective plate (5), the gasoline engine (9) is fixed to the inner side of the shell (1) through screws, the output end of the gasoline engine (9) is connected with a first guide wheel (10) through a coupler, and a belt (11) is sleeved on the outer, the bottom inboard of belt (11) is equipped with second guide pulley (17), second guide pulley (17) inboard is connected with mount (14) through the pivot, the inboard of mount (14) is connected with sprocket (13) through the pivot, spout (18) have been seted up to the inner wall of shell (1), the left side of mount (14) is run through and is provided with lead screw (16), the internal surface welding of shell (1) has stud (15).

2. A noise reducing semi-automatic chain saw as set forth in claim 1, wherein: shock attenuation section of thick bamboo (6) are including cover storehouse (601), spring (602) and connecting rod (603), shock attenuation section of thick bamboo (6) weld in the bottom of handrail (4), the inboard of shock attenuation section of thick bamboo (6) is seted up in cover storehouse (601), spring (602) and connecting rod (603) all set up in the inboard of cover storehouse (601), and connecting rod (603) set up in the bottom of spring (602).

3. A noise reducing semi-automatic chain saw as set forth in claim 2, wherein: the quantity of damper cylinder (6) is both sides, and is two sets of damper cylinder (6) weld respectively in the both sides bottom of handrail (4), elastic structure is constituteed with spring (602) connecting rod (603), the bottom of connecting rod (603) is passed through the bolt fastening in the surface of shell (1).

4. A noise reducing semi-automatic chain saw as set forth in claim 1, wherein: the noise reduction cover (7) comprises a sound transmission cover (701), sound transmission holes (702), honeycomb cotton (703) and through holes (704), the periphery of the sound transmission cover (701) is embedded in the inner surface of the sound reduction cover (7), the sound transmission holes (702) penetrate through the inner surface of the sound transmission cover (701), and the honeycomb cotton (703) is sleeved on the outer surface of the sound transmission cover (701).

5. A noise reducing semi-automatic chain saw as set forth in claim 4, wherein: the through hole (704) penetrates through the outer surface of the right side of the silencing cover (7), and the through hole (704) is communicated with the sound transmission hole (702).

6. A noise reducing semi-automatic chain saw as set forth in claim 5, wherein: the chain wheel (13) is meshed with the chain saw (8), the chain wheel (13) and the fixing frame (14) form a rotating structure, the screw rod (16) penetrates through the inner side of the stud (15), and the screw rod (16) is rotatably connected with the stud (15) through threads.