CN2852653Y

CN2852653Y - Hydraulic secateur

Info

Publication number: CN2852653Y
Application number: CN 200520136830
Authority: CN
Inventors: 徐贵路
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-03
Filing date: 2005-12-03
Publication date: 2007-01-03
Anticipated expiration: 2015-12-03

Abstract

The utility model discloses a hydraulic pressure pruning-shear, which comprises such members fixed to the hydraulic unit assembly as a hollow master rod, a hollow secondary rod and an oil bag, a hand operated oil pump comprising a control handle, a ram pump and a hydraulic unit assembly, an oil return valve, a hollow telescopic rod fixed on the hollow secondary bar, tool mounting fixed on the hollow telescopic rod, a movable cup of skate integrating the tool mounting into one, a movable tool hinged to the piston rod and tool mounting, an oil tube fixed on the hollow telescopic rod and the oil inlet of oil cylinder, and an oil cylinder;the inclined pull of tension spring is fixed on a location near the tail of the piston rod and tool mounting. The hydraulic unit assembly provides two major paths: an oil-in loop and an oil return loop. The upper and lower ports of the oil-in loop are equipped respectively with a return check valve and an in-line check valve. The oil return loop of the hydraulic unit assembly is equipped with an oil return valve in a wrest way. With a hydraulic pressure as power. The utility model has the advantages of simple operation, labour saving, high efficiency, large diameter of the shorn branch, stable fixing of the hollow telescopic rod and hollow secondary link. The height is adjustable at any time in line with branch which varies from 2.2 to 4.5 meters, and the cutting height range is large.

Description

The hydraulic pressure hand-bill

One, affiliated technical field:

The utility model belongs to hand-bill.

Two, background technology:

At present, repairing the used hand-bill of trees has averruncator, and it has a stationary knife and a moving knife, drives lever by rope, lever drives moving knife motion beta pruning, and it is little that it shears diameter, is no more than 25 millimeters, pulls rope and not only require great effort, and labour intensity is big, and efficient is low; Be the branch of energy clip eminence, its support bar adopts stretching structure, supports the lever lock point and has only a place, and support bar should not steadily should not be operated after stretching height.Also has a kind of branches of tall trees chain saw, it uses gasoline to be used as power, it is big that it shears diameter, but its support bar is made up of two bars that are fixed together, its support bar height is non-adjustable, the beta pruning altitude range is little, and it also has the chain of gasoline engine, power transmission shaft, reduction box and drive cutter, so, its Heavy Weight, volume are big, carry inconvenience, cost height, contaminated environment.

Three, summary of the invention:

The utility model is exactly to solve now with the problems referred to above that exist in the technology, and a kind of hydraulic pressure hand-bill that diameter is bigger, laborsaving, the shear height scope is big, easy to carry of shearing is provided.

For addressing the above problem, technical solution of the present utility model is: a kind of hydraulic pressure hand-bill, it comprise hollow mobile jib, hollow secondary bar, oil sac, hand oil pump, oil return valve, hollow expansion link, knife rest, with moving knife holder, moving knife, oil pipe and the oil cylinder of knife rest one; Hand oil pump is made up of joystick, plunger pump and hydraulic pressure assembly; Hollow mobile jib is fixed on an end of hydraulic pressure assembly, and hollow secondary rod seal is fixed on the other end of hydraulic pressure assembly, hollow expansion link movably sealing and fixing in hollow secondary bar; Oil pipe two ends difference sealing and fixing is on the oil-in of hollow expansion link and oil cylinder; The piston rod of oil cylinder and moving knife afterbody are hinged; Knife rest is fixed on the hollow expansion link, and moving knife is hinged on the end that knife rest drives the cutter holder near the position at middle part; The cylinder body of oil cylinder is fixed on the other end of knife rest, and extension spring one end is fixed on the piston rod, and the other end tiltedly draws and is fixed on the position of knife rest near afterbody; Have two main channels on the hydraulic pressure assembly, form oil-feed loop and oil return loop, an oil sac is arranged in the hollow mobile jib, hollow mobile jib is fixed on the hydraulic pressure assembly, and oil sac upper surface sealing and fixing is on the hydraulic pressure assembly; Be fixed with in line check valve on the lower port in oil-feed loop, be fixed with fuel-displaced check valve on the upper port; On the oil return loop of hydraulic pressure assembly oil return valve is installed; The front end of joystick is hinged on the brace, brace is hinged on the hydraulic pressure assembly, have the connecting hole of plunger pump on the hydraulic pressure assembly, plunger pump is fixed on the connecting hole, porosely on the oil-feed loop be connected with plunger pump cylinder body, plunger is hinged on the handle, and oil-feed loop upper port is connected with hollow secondary bar by fuel-displaced check valve, and oil return loop upper port is connected with hollow secondary bar.

Oil sac of the present utility model lower surface has fuel feed hole, is fixed with seal cover on the fuel feed hole, has air vent on the hollow mobile jib.

Above-mentioned described hollow expansion link of the present utility model is placed in the hollow secondary bar, the lower end of hollow expansion link is fixed with the secondary rod seal plug that has endoporus, there is an inner groovy on hollow expansion link top every a segment distance, and tapered end withstands in the inner groovy, with fixedly expansion link and mobile jib.

Because the utility model has adopted such scheme, earlier oil return valve is tightened, to carry on the joystick, the plunger of pulling plunger pump, in line check valve is opened, and gives the oil cylinder oiling of plunger pump, after filling with, the in line check valve return is depressed joystick, and the oil of plunger pump oil cylinder is pushed out, the fuel-displaced check valve upwards fuel feeding that is opened, the piston of oil cylinder is extruded, and moving knife is pressed down, and pushes joystick continuously several times, branch will be blocked, unclamp oil return valve then, because in line check valve is not opened, oil can only be along oil return loop stream oil return capsule.The utility model adopts hydraulic pressure as power, and is simple to operate, laborsaving, and the efficient height is sheared the branch diameter and reached 60 millimeters, and it is bigger to shear diameter, and shearing area is neat, does not tear skin, and is attractive in appearance, do not damage trees; Adopt sealing-plug and tapered end that hollow expansion link and hollow secondary bar are fixed, 2 fixing more stable, and oil-proof; Its height can be reconciled with the height of shearing branch, can variation from 2.2 meters to 4.5 meters, and the shear height scope is big.

Four, description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the amplification cut-away view of hand oil pump among Fig. 1, oil return valve and oil sac part;

Fig. 3 is the AA cutaway view of Fig. 2;

Fig. 4 is the left view of Fig. 2;

Fig. 5 is the BB cutaway view of Fig. 4;

Fig. 6 is the amplification cut-away view of expansion link tapered end part among Fig. 1;

Fig. 7 is the CC cutaway view of Fig. 6.

Five, embodiment:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, hollow mobile jib 18 screw threads of present embodiment are fixed on the hydraulic pressure assembly 16, and hollow secondary bar 12 is fixed on the hydraulic pressure assembly 16 by the sealing ring sealing thread.Hollow expansion link 8 is placed in the hollow secondary bar 12, and the lower end of hollow expansion link 8 is fixed with the secondary rod seal plug 21 that has endoporus 11, has groove on secondary rod seal plug 21 outer walls, and the sealing ring 10 of sealing pair bar is arranged in the groove.There is an inner groovy 42 on hollow secondary bar 12 tops every a segment distance, and tapered end 9 withstands in the inner groovy 42.Tapered end 9 is made up of bracelet jackscrew 40, top board 38 and fixed housing 41, fixed housing 41 is threaded on hollow secondary bar 12 inwalls, jackscrew 40 is threaded in the fixed housing 41, big, outer little groove in having on the top board 38, the top 39 of jackscrew 40 front ends is complementary with the groove on the top board 38, and the top 39 of jackscrew is stuck in the groove of top board 38.Oil pipe 1 two ends difference sealing and fixing is on the oil-in of hollow expansion link 8 and oil cylinder; The piston rod 5 of oil cylinder is linked together by axle and moving knife 2 afterbodys upper end; Moving knife 2 is connected the front end of knife rest 3 by axle near the position at middle part; The cylinder body 7 of oil cylinder is fixed on an end of knife rest 3, and extension spring 6 one ends are fixed on the piston rod 5, and the other end tiltedly draws and is fixed on the position of knife rest 3 near afterbody.Have two main channels on the hydraulic pressure assembly 16 of hand oil pump, form oil-feed loop 25 and oil return loop, the oil return loop by two decentraction connecting by through hole 43 slotted hole 29 and 37 form; One oil sac 17 is arranged in the hollow mobile jib 18, and hollow mobile jib 18 screw threads are fixed on the hydraulic pressure assembly 16, oil sac 17 upper surfaces by the clip sealing and fixing on hydraulic pressure assembly 16; Be fixed with in line check valve on the lower port in oil-feed loop 25, be fixed with fuel-displaced check valve on the upper port.In line check valve and fuel-displaced check valve all are made up of steel ball 23 and spring 24, oil-feed loop 25 broadens in its lower port or upper port place, spring 24 and steel ball 23 place herein, the lid 22 that has hole, narrow loop is fixed on lower port or the upper port, and steel ball 23 and spring 24 are stuck in and cover on 22 walls and oil-feed loop 25 walls.On the oil return loop of hydraulic pressure assembly 16 oil return valve 15 is installed, oil return valve 15 is made up of jackscrew 33, shell 32, fore-set 31, steel ball 30 and torsion spring 34, there is groove at the fore-set middle part, O RunddichtringO 36 is arranged in the groove, the minor face of torsion spring 34 places in the blind hole 35 that has on the hydraulic pressure assembly 16, long limit places in the slotted hole 29 in oil return loop, the end on long limit is the ㄩ shape, it is stuck in the through hole 43, steel ball 30 is between the end and fore-set 31 on long limit, fore-set 31 places in the shell 32, and jackscrew 33 is screwed in the shell 32, and head withstands on the fore-set 31.The front end of joystick 19 is connected on the brace 13 by axle, brace 13 is connected on the hydraulic pressure assembly 16 by axle, have the connecting hole of plunger pump 14 on the hydraulic pressure assembly 16, plunger pump 14 is fixed on the connecting hole, porose 26 are connected with the cylinder body 27 of plunger pump 14 on the oil-feed loop, and plunger 28 is connected the centre of joystick 19 by screw.Oil-feed loop 25 upper port are connected with hollow secondary bar 12 by fuel-displaced check valve, and oil return loop upper port is connected with hollow secondary bar 12.Oil sac 17 lower surfaces have fuel feed hole, are fixed with seal cover 20 on the fuel feed hole, have air vent 44 on the hollow mobile jib 18.4 is the moving knife holder, and the moving knife holder is ledger-plate also.

Claims

1, a kind of hydraulic pressure hand-bill is characterized in that: it comprise hollow mobile jib, hollow secondary bar, oil sac, hand oil pump, oil return valve, hollow expansion link, knife rest, with moving knife holder, moving knife, oil pipe and the oil cylinder of knife rest one; Hand oil pump is made up of joystick, plunger pump and hydraulic pressure assembly; Hollow mobile jib is fixed on an end of hydraulic pressure assembly, and hollow secondary rod seal is fixed on the other end of hydraulic pressure assembly, hollow expansion link movably sealing and fixing in hollow secondary bar; Oil pipe two ends difference sealing and fixing is on the oil-in of hollow expansion link and oil cylinder; The piston rod of oil cylinder and moving knife afterbody are hinged; Knife rest is fixed on the hollow expansion link, and moving knife is hinged on the end that knife rest drives the cutter holder near the position at middle part; The cylinder body of oil cylinder is fixed on the other end of knife rest, and extension spring one end is fixed on the piston rod, and the other end tiltedly draws and is fixed on the position of knife rest near afterbody; Have two main channels on the hydraulic pressure assembly, form oil-feed loop and oil return loop, an oil sac is arranged in the hollow mobile jib, hollow mobile jib is fixed on the hydraulic pressure assembly, and oil sac upper surface sealing and fixing is on the hydraulic pressure assembly; Be fixed with in line check valve on the lower port in oil-feed loop, be fixed with fuel-displaced check valve on the upper port; On the oil return loop of hydraulic pressure assembly oil return valve is installed; The front end of joystick is hinged on the brace, brace is hinged on the hydraulic pressure assembly, have the connecting hole of plunger pump on the hydraulic pressure assembly, plunger pump is fixed on the connecting hole, porosely on the oil-feed loop be connected with plunger pump cylinder body, plunger is hinged on the handle, and oil-feed loop upper port is connected with hollow secondary bar by fuel-displaced check valve, and oil return loop upper port is connected with hollow secondary bar.

2, hydraulic pressure hand-bill according to claim 1 is characterized in that: described oil sac (17) lower surface has fuel feed hole, is fixed with seal cover (20) on the fuel feed hole, has air vent (44) on the hollow mobile jib (18).

3, hydraulic pressure hand-bill according to claim 1 and 2, it is characterized in that: described hollow expansion link (8) is placed in the hollow secondary bar (12), the lower end of hollow expansion link (8) is fixed with the secondary rod seal plug (21) that has endoporus (11), there is an inner groovy on hollow expansion link (8) top every a segment distance, and tapered end (9) withstands in the inner groovy.

4, hydraulic pressure hand-bill according to claim 3 is characterized in that: have groove on described secondary rod seal plug (21) outer wall, the sealing ring (10) of sealing pair bar is arranged in the groove.

5, hydraulic pressure hand-bill according to claim 3, it is characterized in that described tapered end (9) is made up of bracelet jackscrew (40), top board (38) and fixed housing (41), fixed housing (41) is threaded on hollow secondary bar (12) inwall, jackscrew (40) is threaded in the fixed housing (41), big, outer little groove in having on the top board (38), groove on the top (39) of jackscrew (40) front end and the top board (38) is complementary, and the top of jackscrew (39) are stuck in the groove of top board (38).

6, hydraulic pressure hand-bill according to claim 1 and 2, it is characterized in that: described in line check valve and fuel-displaced check valve all are made up of steel ball (23) and spring (24), oil-feed loop (25) broadens in its lower port or upper port place, spring (24) and steel ball (23) place herein, the lid (22) that has hole, narrow loop is fixed on lower port or the upper port, and steel ball (23) and spring (24) are stuck on lid (22) wall and oil-feed loop (25) wall.

7, hydraulic pressure hand-bill according to claim 1 and 2, it is characterized in that: described oil return valve (15) is by jackscrew (33), shell (32), fore-set (31), steel ball (30) and torsion spring (34) are formed, there is groove at the fore-set middle part, O RunddichtringO (36) is arranged in the groove, the minor face of torsion spring (34) places in the blind hole (35) that has on the hydraulic pressure assembly (16), long limit places in the slotted hole (29) in oil return loop, the end on long limit is the  shape, it is stuck in the through hole (43), steel ball (30) is positioned between the end and fore-set (31) on long limit, fore-set (31) places in the shell (32), and jackscrew (33) is screwed in the shell (32), and head withstands on the fore-set (31).