CN201388413Y

CN201388413Y - Aloft scissors

Info

Publication number: CN201388413Y
Application number: CN200920151619U
Authority: CN
Inventors: 朱财富
Original assignee: ZHEJIANG KUAILI TOOLS CO Ltd
Current assignee: ZHEJIANG KUAILI TOOLS CO Ltd
Priority date: 2009-04-20
Filing date: 2009-04-20
Publication date: 2010-01-27
Anticipated expiration: 2019-04-20

Abstract

The utility model discloses aloft scissors, which comprises a cutter head and a handspike respectively fixedly connected at the upper part and the lower part of a connecting seat, wherein a saw blade is fixedly connected on the cutter head, a pull rod pushes a gear to rotate, the gear is engaged with the teeth of a blade to drive the blade to perform linear sliding along a sliding column, so as to realize the cutting by the blade, and a labor-saving pulley is adopted to pull the pull rod to apply force. The scissors adopts the gear to drive the blade to operate, so that the occupied space of the cutter head is small, the movement among tree branches is more flexible, and the cutting effect of the blade is better. A protection hook is additionally mounted between the connecting seat and the cutter head part, so as to enable the connection between the cutter head part and the connecting seat to be firmer.

Description

A kind of high altitude scissors

Technical field:

The present invention relates to gardening pruning tool technical field, more specifically to being used for the high altitude scissors that high-order branch pruning is used.

Background technology:

ZL200720073957.4, CN201088038Y disclose a kind of high altitude scissors, when this high altitude scissors that is used for high branch pruning is worked, pulling rope chain drives blade and is rotated the formation cutting, is fixed with a saw blade that can disassemble simultaneously on high altitude scissors.Its weak point is: 1, utilize the work of chain belt knife section, chain is long, and it is excessive to make that the high altitude scissors working portion takes up room, and is unfavorable for moving flexibly when work high above the ground.2, the chain drive part application of force is also compact inadequately, causes the blade cuts poor effect.3, unprotect jockey between its blade bearing and Connection Block connects firmly inadequately, and when blade bearing partly accidental occurred, blade bearing part accident was easily hurted sb.'s feelings simultaneously.

Summary of the invention:

The object of the present invention is to provide a kind of high altitude scissors, its working portion takes up room little, and it is more flexible to operate, good cutting effect, and it is more firm that blade bearing and Connection Block partly are connected, and reaches the green branch of shearing diameter 40mm.

High altitude scissors of the present invention, comprise the cutter head, the hand lever that are fixedly connected on the Connection Block upper and lower respectively, saw blade is fixedly connected on the cutter head, the structure of cutter head part is: two be interlocked be fixed together on form traveller on the lower house in the lower house, the chute sleeve of blade is on this traveller, one side of blade has toothrow, and the lower end of blade is fixedly connected with extension spring, and the other end of extension spring is fixed on the housing;

Has jointed shaft on the housing, driving gear, driven gear, pull bar are hinged on this axle, driving gear, driven gear are fixed together, be connected with on the pull bar and pull out sheet, the front end that pulls out sheet is fastened on the tooth of driving gear, has the hypodontia part on the driven gear, ratchet is hinged on the housing, its front end is fastened on the tooth of driving gear, and torsion spring one end is put forth effort on ratchet, and the other end is put forth effort on the housing;

Back-moving spring one end is fixed on the housing, and the other end is fixed on the pull bar, is fixed with assembly pulley on pull bar, Connection Block respectively, and driven gear is meshed with toothrow on the blade.

The described sheet that pulls out is hinged on the pull bar, and torsion spring one end is put forth effort on and pulled out sheet, and the other end is put forth effort on the pull bar.

Described saw blade sleeve is on the inserting column and double-screw bolt of shell, and wing nut is pressing saw blade to be fixed on the double-screw bolt.

The protection hook is housed between described Connection Block and the cutter head, and the protection hook is made up of snap close, gib head, elasticity extension spring, and snap close is hinged on the Connection Block, and gib head is molded on the housing of cutter head part, and elasticity is hung spring one end and hung on the gib head, and the other end is hinged on the snap close.

Beneficial effect of the present invention is: (1), its use gear drive blade work, and the gear drive part is compared with chain drive, and working portion takes up room much smaller, and when work high above the ground, the cutter head part moves more flexible between branch.(2), the gear drive power transmission is more direct, adds laborsaving assembly pulley, makes the blade cuts better effects if.(3), Connection Block and cutter head partly installed the protection hook additional, makes the cutter head part be connected more firm with Connection Block.

Description of drawings:

Fig. 1 is an external structure schematic diagram of the present invention;

Fig. 2 removes this practical structural representation after the upper case portion;

The schematic perspective view of Fig. 3 gear drive part.

Embodiment:

Embodiment, see shown in Fig. 1～3: a kind of gear-driven high altitude scissors, comprise the cutter head 3, the hand lever 1 that are fixedly connected on Connection Block 2 upper and lowers respectively, saw blade 4 is fixedly connected on the cutter head 3, and the structure of cutter head 3 parts is:

Two be interlocked be fixed together on form traveller 311 on the lower house 31 in the lower house, chute 321 sleeves of blade 32 are on this traveller, one side of blade 32 has toothrow 322, and the lower end of blade 32 is fixedly connected with extension spring 36, and the other end of extension spring 36 is fixed on the housing 31;

Has jointed shaft 312 on the housing 31, driving gear 37, driven gear 38, pull bar 33 are hinged on this axle 312, driving gear 37, driven gear 38 are fixed together, be connected with on the pull bar 33 and pull out sheet 39, the front end that pulls out sheet 39 is fastened on the tooth of driving gear 37, has hypodontia part 381 on the driven gear 38, ratchet 301 is hinged on the housing 31, its front end is fastened on the tooth of driving gear 37, and torsion spring 302 1 ends are put forth effort on ratchet 301, and the other end is put forth effort on the housing 31;

Back-moving spring 35 1 ends are fixed on the housing, and the other end is fixed on the pull bar 33, are fixed with assembly pulley 34 respectively on pull bar 33, Connection Block 2, and driven gear 38 is meshed with toothrow 322 on the blade 32.

The described sheet 39 that pulls out is hinged on the pull bar 33, and torsion spring 303 1 ends are put forth effort on and pulled out sheet 39, and the other end is put forth effort on the pull bar 33.

Described saw blade 4 sleeves are on the inserting column 313 and double-screw bolt 314 of shell 31, and wing nut 304 is pressing saw blade to be fixed on the double-screw bolt 314.

Protection hook 5 is housed between described Connection Block 2 and the cutter head 3; protection hook 5 is made up of snap close, gib head 52, elasticity extension spring 53, and elasticity button 51 is hinged on the Connection Block 2, and gib head 52 is molded on the housing of cutter head 3 parts; elasticity is hung spring 53 1 ends and is hung on the gib head 52, and the other end is hinged on the snap close 51.

Operation principle: pull bar 33 is stirred driving gear 37 and is rotated, and driven gear 38 is meshed with the tooth 322 of blade 32, drives blade 32 along traveller 311 linear slide, realizes the cutting of blade 32, and the application of force adopts laborsaving assembly pulley 34 ropes pulling pull bar 33.Have tooth on the driven gear 38 and lack 381, when the toothrow 322 of blade 32 moved to this tooth and lacks 381 places, toothrow 322 contact with driven gear 38, is in no external force state, acts on bottom knife 32 in extension spring 36 and automatically resets.Pull bar 33 automatically resets under back-moving spring 35 effects simultaneously.When spurring pull bar 33 once more, repeat said process, realize that the cutting of blade 32 moves back and forth.

The pull bar 33 power arm part that extended has been used two groups of assembly pulleys 34 again and has made and shear more laborsavingly, reaches the green branch that diameter 40mm is sheared in the high-altitude first.

Driving gear 37 and driven gear 38 can be shaped to one, also can produce respectively to weld together.Or connect by steel and to be fixed together.The driving gear 37 that ratchet 301 controls are fixed together can only rotate to a direction with driven gear 38, pulls out sheet 39 and stirs the gear rotation.

Protection hook 5 elastic hooks that are similar on armoured case, the box can be suspended to gib head 52, also can make things convenient at any time and pull down.

Claims

1. a high altitude scissors comprises the cutter head (3), the hand lever (1) that are fixedly connected on Connection Block (2) upper and lower respectively, and saw blade (4) is fixedly connected on the cutter head (3), it is characterized in that the structure of cutter head (3) part is:

Two be interlocked be fixed together on form traveller (311) on the lower house (31) in the lower house, chute (321) sleeve of blade (32) is on this traveller (311), one side of blade (32) has toothrow (322), the lower end of blade (32) is fixedly connected with extension spring (36), and the other end of extension spring (36) is fixed on the housing (31);

Has jointed shaft (312) on the housing (31), driving gear (37), driven gear (38), pull bar (33) is hinged on this axle (312), driving gear (37), driven gear (38) is fixed together, be connected with on the pull bar (33) and pull out sheet (39), the front end that pulls out sheet (39) is fastened on the tooth of driving gear (37), has hypodontia part (381) on the driven gear (38), ratchet (301) is hinged on the housing (31), its front end is fastened on the tooth of driving gear (37), torsion spring (302) one ends are put forth effort on ratchet (301), and the other end is put forth effort on the housing (31);

Back-moving spring (35) one ends are fixed on the housing, and the other end is fixed on the pull bar (33), are fixed with assembly pulley (34) respectively on pull bar (33), Connection Block (2), and driven gear (38) is meshed with toothrow (322) on the blade (32).

2, a kind of high altitude scissors according to claim 1 is characterized in that: pull out sheet (39) and be hinged on the pull bar (33), torsion spring (303) one ends are put forth effort on and are pulled out sheet (39), and the other end is put forth effort on the pull bar (33).

3, a kind of high altitude scissors according to claim 1 is characterized in that: saw blade (4) sleeve is on the inserting column (313) and double-screw bolt (314) of shell (31), and wing nut (304) is pressing saw blade to be fixed on the double-screw bolt (314).

4, a kind of high altitude scissors according to claim 1; it is characterized in that: protection hook (5) is housed between Connection Block (2) and the cutter head (3); protection hook (5) is hung spring (53) by snap close (51), gib head (52), elasticity and is formed; snap close (51) is hinged on the Connection Block (2); gib head (52) is molded on the housing of cutter head (3) part; elasticity is hung spring (53) one ends and is hung on the gib head (52), and the other end is hinged on the snap close (51).