CN106688653B - Anti-false start pruner - Google Patents

Anti-false start pruner Download PDF

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Publication number
CN106688653B
CN106688653B CN201710102848.9A CN201710102848A CN106688653B CN 106688653 B CN106688653 B CN 106688653B CN 201710102848 A CN201710102848 A CN 201710102848A CN 106688653 B CN106688653 B CN 106688653B
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CN
China
Prior art keywords
chain
disc
chain disc
sliding
pruner
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Active
Application number
CN201710102848.9A
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Chinese (zh)
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CN106688653A (en
Inventor
程蓓
程瀚龙
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Ningbo Cheery Garden Tools Co ltd
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NINGBO CHEERY GARDEN TOOLS Co Ltd
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Priority to CN201710102848.9A priority Critical patent/CN106688653B/en
Publication of CN106688653A publication Critical patent/CN106688653A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08Other tools for pruning, branching or delimbing standing trees
    • A01G3/085Motor-driven saws for pruning or branching
    • A01G3/086Chain saws

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Harvester Elements (AREA)

Abstract

The invention belongs to garden maintenance equipment, and particularly relates to a false start prevention pruner which comprises a chain disc and a chain, wherein the chain is arranged along the circumferential direction of the chain disc in a rotating manner, a plurality of blades are arranged on the outer side of the chain at intervals along the circumferential direction, one end of the chain disc is fixed in a machine body, and the other end of the chain disc is suspended outside the machine body; the chain wheel protection cover is characterized in that a driving chain wheel is arranged in the machine body, a driven chain wheel is arranged at the overhanging end of the chain disc, the driving chain wheel is driven by an engine arranged in the machine body, the chain disc protection cover is further included, a locking mechanism is arranged between the chain disc protection cover and the chain disc, and when the chain disc protection cover is sleeved on the chain disc, the chain and the chain disc can be relatively locked by the locking mechanism. According to the invention, the chain disc of the pruner is provided with the locking mechanism, when the chain disc protective sleeve is sleeved on the chain disc, the locking mechanism can keep a locking state, namely the chain is locked relative to the chain disc, and at the moment, even if the engine start button is touched by mistake, the engine cannot be ignited smoothly.

Description

Anti-false start pruner
Technical Field
The invention belongs to garden maintenance equipment, and particularly relates to a mis-start prevention pruner.
Background
The pruning machine is one of important equipment of garden maintenance work, and it is mainly used for pruning tiny branches of trees, and the pruning machine in the prior art mainly comprises two kinds, one kind is the electronic pruning machine by motor drive, and the other kind is the fuel oil pruning machine by engine drive, and as for the fuel oil pruning machine, generally adopts a key formula electron mode of striking sparks to start, and this has brought great potential safety hazard for the use of pruning machine. Because under general conditions, the pruner can cover the cutter position with the lag when idle, in case the mistake touches pruner shift knob under this condition, the cutter can smash the antiskid cover in the twinkling of an eye, and the piece that splashes causes the injury to personnel on every side very easily.
Disclosure of Invention
The invention aims to provide a mis-start preventing pruner which can prevent the pruner from mis-starting.
In order to achieve the purpose, the invention provides the following technical scheme: a pruner capable of preventing false start comprises a chain disc and a chain which is arranged along the circumferential direction of the chain disc in a rotating mode, wherein a plurality of blades are arranged on the outer side of the chain at intervals along the circumferential direction, one end of the chain disc is fixed in a pruner body, and the other end of the chain disc is suspended outside the pruner body; the chain wheel protection cover is characterized in that a driving chain wheel is arranged in the machine body, a driven chain wheel is arranged at the overhanging end of the chain disc, the driving chain wheel is driven by an engine arranged in the machine body, the chain disc protection cover is further included, a locking mechanism is arranged between the chain disc protection cover and the chain disc, and when the chain disc protection cover is sleeved on the chain disc, the chain and the chain disc can be relatively locked by the locking mechanism.
The locking mechanism comprises a sliding block arranged on the chain disc in a sliding mode, the sliding direction of the sliding block is perpendicular to the overhanging direction of the chain disc, and a locking pin protruding towards the outer side of the sliding direction of the sliding block is arranged on the sliding block; a wedge surface is arranged on one side of the sliding block, which faces to the overhanging end of the chain disc, a wedge driving block matched with the wedge surface is arranged on the inner wall of the chain disc protective sleeve, and when the wedge driving block is sleeved on the chain disc along with the chain disc protective sleeve, the wedge driving block can drive the sliding block to slide towards the edge direction of the chain disc, so that a locking pin is inserted into a chain link hole of the chain; and a pressure spring which can drive the sliding block to reset when the wedge is driven to withdraw quickly is also arranged between the sliding block and the chain disc.
The two sliding blocks are symmetrically arranged along the central axis direction of the chain disc, and the two sliding blocks are mutually abutted under the action of the pressure spring.
The chain plate is provided with a rectangular through hole, the side wall of the rectangular through hole is provided with a guide hole parallel to the surface of the chain plate, and the locking pin and the guide hole form sliding fit; the guide hole is provided with a counter bore part at the orifice in the rectangular through hole, and the pressure spring is arranged in the counter bore part.
The top end of the locking pin is of a cone-tip-shaped structure.
The sliding block comprises a sliding part positioned in the rectangular through hole and an inclined wedge part which is convexly extended on the outer side of the chain disc surface and is provided with an inclined wedge surface; when the two sliding blocks are mutually abutted, the inclined wedges on the two sliding blocks are arranged in a V shape.
The wedge driving block is of an arrow-shaped structure, and two inclined planes arranged in a V shape at the top end of the wedge driving block form sliding fit with the wedge surfaces on the two sliding blocks respectively.
The invention has the technical effects that: according to the invention, the chain disc of the pruner is provided with the locking mechanism, when the chain disc protective sleeve is sleeved on the chain disc, the locking mechanism can keep a locking state, namely the chain is locked relative to the chain disc, and at the moment, even if the engine start button is touched by mistake, the engine cannot be ignited smoothly.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a perspective view of the chain pan structure of the present invention;
FIG. 3 is an exploded view of the chain wheel structure of the present invention;
FIG. 4 is a cross-sectional view of the locking mechanism of the present invention;
FIG. 5 is a cross-sectional view of the locking mechanism of the present invention in a locked state;
fig. 6 is a perspective sectional structure diagram of the chain guard of the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
A pruner preventing false start comprises a chain disc 10 and a chain 11 which is arranged along the circumferential direction of the chain disc 10 in a rotating way, wherein a plurality of blades are arranged at intervals along the circumferential direction outside the chain 11, one end of the chain disc 10 is fixed in a pruner body 30, and the other end of the chain disc 10 is suspended outside the pruner body 30; the chain wheel driving mechanism is characterized in that a driving chain wheel 12 is arranged in the machine body 30, a driven chain wheel is arranged at the overhanging end of the chain disc 10, the driving chain wheel 12 is driven by an engine arranged in the machine body 30, the chain disc protecting sleeve 20 is further included, a locking mechanism is arranged between the chain disc protecting sleeve 20 and the chain disc 10, and when the chain disc protecting sleeve 20 is sleeved on the chain disc 10, the chain 11 and the chain disc 10 can be locked relatively by the locking mechanism.
Preferably, the locking mechanism comprises a sliding block 13 arranged on the chain wheel 10 in a sliding manner, the sliding direction of the sliding block 13 is perpendicular to the overhanging direction of the chain wheel 10, and a locking pin 14 arranged on the sliding block 13 in a protruding manner towards the outer side of the sliding direction of the sliding block 13; a wedge surface is arranged on one side of the sliding block 13 facing the overhanging end of the chain disc 10, a wedge driving block 21 matched with the wedge surface is arranged on the inner wall of the chain disc protective sleeve 20, and when the wedge driving block 21 is sleeved on the chain disc 10 along with the chain disc protective sleeve 20, the wedge driving block 21 can drive the sliding block 13 to slide towards the edge direction of the chain disc 10, so that the locking pin 14 is inserted into a chain link hole of the chain 11; and a pressure spring 15 which can drive the sliding block 13 to reset when the wedge is driven to withdraw is also arranged between the sliding block 13 and the chain disc 10.
Preferably, two sliding blocks 13 are symmetrically arranged along the central axis direction of the chain disc 10, and the two sliding blocks 13 are mutually abutted under the action of the pressure spring 15.
Preferably, a rectangular through hole 101 is formed in the chain disc 10, a guide hole parallel to the disc surface of the chain disc 10 is formed in the side wall of the rectangular through hole 101, and the locking pin 14 and the guide hole form sliding fit; the pilot hole is provided with a counter bore portion at the orifice in the rectangular through hole 101, in which the compression spring 15 is disposed.
Preferably, the top end of the locking pin 14 is a cone-tip structure.
Preferably, the sliding block 13 comprises a sliding part located in the rectangular through hole 101, and a wedge part protruding outside the disk surface of the chain disk 10 and having the wedge surface; when the two sliding blocks 13 are abutted against each other, the tapered wedge surfaces on the two sliding blocks 13 are arranged in a V shape.
Preferably, the wedge driving block 21 is an arrow-shaped structure, and two inclined planes arranged in a V shape at the top end of the wedge driving block 21 are respectively in sliding fit with the wedge surfaces on the two sliding blocks 13.
According to the invention, the chain disc 10 of the pruner is provided with the locking mechanism, when the chain disc 10 is sleeved with the protection sleeve 20 of the chain disc 10, the locking mechanism can keep a locking state, namely the chain 11 is locked relative to the chain disc, and at the moment, even if an engine starting button is touched by mistake, the engine cannot be ignited smoothly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A pruner capable of preventing false start comprises a chain disc (10) and a chain (11) which is arranged along the circumferential direction of the chain disc (10) in a rotating mode, wherein a plurality of blades are arranged on the outer side of the chain (11) at intervals along the circumferential direction, one end of the chain disc (10) is fixed in a pruner body (30), and the other end of the chain disc is suspended outside the pruner body (30); be equipped with a drive sprocket (12) in organism (30), the overhang end of chain dish (10) is equipped with driven sprocket, drive sprocket (12) are by the engine drive that sets up in organism (30), its characterized in that: the chain plate protecting device is characterized by further comprising a chain plate protecting sleeve (20), a locking mechanism is arranged between the chain plate protecting sleeve (20) and the chain plate (10), and when the chain plate protecting sleeve (20) is sleeved on the chain plate (10), the chain (11) and the chain plate (10) can be locked relatively through the locking mechanism;
the locking mechanism comprises a sliding block (13) which is arranged on the chain disc (10) in a sliding mode, the sliding direction of the sliding block (13) is perpendicular to the overhanging direction of the chain disc (10), and a locking pin (14) which protrudes and extends towards the outer side of the sliding direction of the sliding block (13) is arranged on the sliding block (13); a wedge surface is arranged on one side, facing the overhanging end of the chain disc (10), of the sliding block (13), a wedge driving block (21) matched with the wedge surface is arranged on the inner wall of the chain disc protective sleeve (20), and when the wedge driving block (21) is sleeved on the chain disc (10) along with the chain disc protective sleeve (20), the wedge driving block (21) can drive the sliding block (13) to slide towards the edge direction of the chain disc (10), so that the locking pin (14) is inserted into a chain link hole of the chain (11); and a pressure spring (15) capable of driving the sliding block (13) to reset when the wedge is driven to withdraw quickly is further arranged between the sliding block (13) and the chain disc (10).
2. The mis-start prevention pruner of claim 1, wherein: two sliding blocks (13) are symmetrically arranged along the central axis direction of the chain disc (10), and the two sliding blocks (13) are mutually abutted under the action of the pressure spring (15).
3. The mis-start prevention pruner of claim 2, wherein: a rectangular through hole (101) is formed in the chain disc (10), a guide hole parallel to the disc surface of the chain disc (10) is formed in the side wall of the rectangular through hole (101), and the locking pin (14) is in sliding fit with the guide hole; the guide hole is provided with a counter bore portion at an orifice in the rectangular through hole (101), and the pressure spring (15) is arranged in the counter bore portion.
4. The mis-start prevention pruner of claim 3, wherein: the top end of the locking pin (14) is of a cone-tip-shaped structure.
5. The mis-start prevention pruner of claim 4, wherein: the sliding block (13) comprises a sliding part positioned in the rectangular through hole (101) and a wedge part which is convexly extended outside the disc surface of the chain disc (10) and is provided with a wedge surface; when the two sliding blocks (13) are mutually abutted, the inclined wedge surfaces on the two sliding blocks (13) are arranged in a V shape.
6. The mis-start prevention pruner of claim 5, wherein: the wedge driving block (21) is of an arrow-shaped structure, and two inclined planes arranged in a V shape at the top end of the wedge driving block (21) are respectively in sliding fit with the wedge surfaces on the two sliding blocks (13).
CN201710102848.9A 2017-02-24 2017-02-24 Anti-false start pruner Active CN106688653B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710102848.9A CN106688653B (en) 2017-02-24 2017-02-24 Anti-false start pruner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710102848.9A CN106688653B (en) 2017-02-24 2017-02-24 Anti-false start pruner

Publications (2)

Publication Number Publication Date
CN106688653A CN106688653A (en) 2017-05-24
CN106688653B true CN106688653B (en) 2020-03-17

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ID=58917105

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710102848.9A Active CN106688653B (en) 2017-02-24 2017-02-24 Anti-false start pruner

Country Status (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010233553A (en) * 2009-03-31 2010-10-21 Hitachi Koki Co Ltd Engine tool
CN203226064U (en) * 2013-03-14 2013-10-09 蒋雷杰 Novel electric pruning machine
CN103447616A (en) * 2012-05-15 2013-12-18 安德烈亚斯.斯蒂尔两合公司 Chain guard and chainsaw system
CN104285694A (en) * 2013-07-19 2015-01-21 苏州宝时得电动工具有限公司 Chain saw

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010233553A (en) * 2009-03-31 2010-10-21 Hitachi Koki Co Ltd Engine tool
CN103447616A (en) * 2012-05-15 2013-12-18 安德烈亚斯.斯蒂尔两合公司 Chain guard and chainsaw system
CN203226064U (en) * 2013-03-14 2013-10-09 蒋雷杰 Novel electric pruning machine
CN104285694A (en) * 2013-07-19 2015-01-21 苏州宝时得电动工具有限公司 Chain saw

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PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20191225

Address after: 315500 Zhejiang Province, Ningbo city Fenghua District streets Xiwu Shang Qiao Road No. 20

Applicant after: NINGBO CHEERY GARDEN TOOLS Co.,Ltd.

Address before: West Street of Fenghua city in Zhejiang province is 315500 Ningbo City Road No. 21

Applicant before: NINGBO HONGKUN ELECTRICAL APPLIANCE CO.,LTD.

TA01 Transfer of patent application right
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GR01 Patent grant
OL01 Intention to license declared
OL01 Intention to license declared