CN2443593Y

CN2443593Y - Hand pull type long shears for high trees

Info

Publication number: CN2443593Y
Application number: CN 00251373
Authority: CN
Inventors: 王耀钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-05
Filing date: 2000-09-05
Publication date: 2001-08-22
Anticipated expiration: 2010-09-05

Abstract

The utility model relates to a pair of hand pull type shears for high branches. The utility model is characterized in that a bend hook cutting holder is connected with a semilunar movable cutting blade in a pin connection mode through a cutting blade pin axle, and the tail end of the semilunar movable cutting blade is connected with an extension rod; the back part of the bend hook cutting holder is connected with a transmission plate in a pin connection mode through a transmission plate pin axle, wherein, a reset spring is arranged between the upper end of the transmission plate and the bend hook cutting holder, and the transmission plate is provided with a slide groove of which the inside is connected with the extension rod of the movable cutting blade through a movable pin; the upper end of the transmission plate is provided with an upper pulley wheel, and one side of a rubber wheel is provided with a lower pulley wheel, wherein, a pull wire is connected between the upper and the lower pulley wheels. The utility model has the characteristics of simple and reasonable structure, high work efficiency, accurate positioning, convenient operation, labor saving, simple manufacture and assembly and lower cost.

Description

The hand pulling type averruncator

The utility model relates to the cutting tool of gardening special use, and especially a kind of hand pulling type averruncator generally is applicable to family or garden management department.

Notification number is that the Chinese patent of CN2250633Y discloses a kind of adjustable jujube tree averruncator, this haircut is made of the double-pole frame of making stationary knife and fan-shaped moving knife, cutting bar forms by two sections that peg graft, cut retainer spring is installed in the bar, backguy one end is fixed on the afterbody of haircut moving knife, the other end passes the return spring of cutting in the bar and is fixed on the control stick, cut by cutting bolt on the bar and nut and cutting bar and link to each other, control stick is installed in to be cut last, epimere is cut to design in the bar adapter sleeve, design has the return spring card in the backguy, and there is a snap joint centre of backguy.The parts in addition that but the shortcoming that this patent exists is complex structure, relate to are more, implement that difficulty is big, production cost is high, be not suitable for promoting the use of within the family.

The purpose of this utility model provide a kind of simple and reasonable, high efficiency, accurate positioning, easy to operate, make simple and easy, the lower-cost hand pulling type averruncator of assembling.

The technical scheme that realizes the utility model purpose is: the hand pulling type averruncator, contain telescoping handle, the glue handle, the crotch knife rest, detachable saw blade, telescoping handle and crotch knife rest all directly insert in the glue handle, its design feature is by blade bearing pin pin joint one semi-moon shaped movable blades on the crotch knife rest, its tail end is connected with extension rod, the rear portion of crotch knife rest is by driver plate bearing pin pin joint driver plate, between driver plate upper end and the crotch knife rest back-moving spring is housed, have chute on the driver plate, be connected with the extension rod of movable blades by removable pin in the chute, top sheave is equipped with in the driver plate upper end, and a side of glue handle is equipped with lower sheave, is connected with backguy between them.

The front end of crotch knife rest described in the utility model is the dog shape, and interior profile has semicircular camber line, and the backhaul destination county at the knife rest middle part corresponding to movable blades is equipped with block.The upper end of described crotch knife rest is fixed with the detachable saw blade.The free end of described backguy is equipped with the coiling handle.

Advantage and good effect that the utility model is compared with prior art had are: simple and reasonable, required part is few, firm and durable, assembling is easy, cost is lower, the crotch of knife rest can hook branch easily, accurate positioning, branch is difficult for slippage, thicker branch can use the saw blade sawing, pulley be arranged so that operation is very laborsaving.

The utility model is described in further detail will and to contrast accompanying drawing by embodiment below:

Fig. 1 is the structure chart of the utility model relaxation state.

Structure chart when Fig. 2 is the utility model shearing.

As shown in the figure, present embodiment comprises saw blade 1, saw blade holding screw 2, crotch knife rest 3, blade bearing pin 4, movable blades 5, block 6, glue handle 7, fixed screw 8, telescoping handle 9, coiling handle 10, lower sheave 11, backguy 12, driver plate bearing pin 13, top sheave 15, back-moving spring 16, removable pin 17, driver plate 18.

Telescoping handle 9 and crotch knife rest 3 directly inserts two of glue handle 7 by tight fit, also available fixed screw 8 reinforcings between telescoping handle 9 and the glue handle 7, and a side direction of glue handle is stretched out one jiao and lower sheave 11 is housed outward.Crotch knife rest 3 front ends are the dog shape, profile has semicircular camber line in it, can hook branch easily, the middle part of knife rest 3 can be around the semilune movable blades 5 of this bearing pin rotation by blade bearing pin 4 pin joints one, the rear portion of movable blades is connected with extension rod 4-1 and has the hole in its end, corresponding to movable blades 5 concave edge exercise end places fixing block 6 is housed on crotch knife rest 3.Opposite side at crotch knife rest 3 crotches can be around the driver plate 18 of this bearing pin rotation by driver plate bearing pin 13 pin joints one, the middle and lower part of driver plate has rectangular chute 18-1, be connected with hole on the movable blades extension rod by removable pin 17 in the chute, between the upper end of driver plate 18 and knife rest 3 tops back-moving spring 16 is housed, top sheave 15 also is equipped with in the upper end of driver plate, on, be connected with backguy 12 between the lower sheave, one of backguy is fixed on the fixed support 14 of top sheave 15, the free end of backguy is equipped with coiling handle 10, also available saw blade holding screw 2 is fixed a saw blade 1 on the top of crotch knife rest 3, in order to the thicker branch of sawing.

The course of work of the present utility model is: hand-held telescoping handle 9, crotch with crotch knife rest 3 hooks branch to be sheared, pulling coiling handle 10, make driver plate 18 make circular motion by

assembly pulley

11,15 and backguy 12,, drive movable blades 5 and make upwards shearing motion around blade bearing pin 4 by the chute transmission around driver plate bearing pin 13, unclamp coiling handle 10, blade and other running part are resetted by back-moving spring 16, are blocked by block 6 when movable blades 5 is reset to the backhaul terminal point, finish once and shear.The length of backguy 12 can be twined 10 adjustings of coiling handle.

Claims

1. hand pulling type averruncator, contain telescoping handle (9), glue handle (7), crotch knife rest (3), detachable saw blade (1), telescoping handle (9) and crotch knife rest (3) all directly insert in the glue handle (7), it is characterized in that: pass through blade bearing pin (4) pin joint one semi-moon shaped movable blades (5) on the crotch knife rest, its tail end is connected with extension rod (4-1), the rear portion of crotch knife rest (3) is by driver plate bearing pin (13) pin joint driver plate (18), between driver plate upper end and the crotch knife rest back-moving spring (16) is housed, have chute (18-1) on the driver plate, be connected with the extension rod (4-1) of movable blades by removable pin (17) in the chute, top sheave (15) is equipped with in driver plate (18) upper end, one side of glue handle (7) is equipped with lower sheave (11), is connected with backguy (12) between them.

2. hand pulling type averruncator as claimed in claim 1 is characterized in that: the front end of described crotch knife rest (3) is the dog shape, and interior profile has semicircular camber line, and the backhaul destination county at the knife rest middle part corresponding to movable blades (5) is equipped with block (6).

3. hand pulling type averruncator as claimed in claim 1 or 2 is characterized in that: the upper end of described crotch knife rest (3) is fixed with detachable saw blade (1).

4. hand pulling type averruncator as claimed in claim 1 or 2 is characterized in that: the free end of described backguy (12) is equipped with coiling handle (10).

5. hand pulling type averruncator as claimed in claim 3 is characterized in that: the free end of described backguy (12) is equipped with coiling handle (10).