CN205727208U - For cutting the device of trees - Google Patents

Abstract

The utility model discloses the device for cutting trees, including screw rod, cutting base and cutting assembly, cutting assembly includes two bracers and rotating shafts, gear saw blade it is arranged with in rotating shaft, cutting base is run through in the upper end of screw rod, and the bevel gear being positioned at above cutting base is installed in this end termination, termination, rotating shaft one end is provided with the angular wheel matched with bevel gear；Also include upper arm assembly, upper arm assembly includes upper arm bar and upper arm head, the upper end of upper arm bar is provided with holding tank, the lower end in upper arm head erect portion is inserted in holding tank, the first torsion spring it is fixed with in holding tank, the lower end of upper arm head bending section is provided with chute, also includes non-slipping block, and the upper end of non-slipping block is provided with draw runner.In this utility model when the position of residual part Yu cutting part has and slightly misplaces, can rotate by making it carry out little scope relative to upper arm head under the elastic deformation effect of the first torsion spring upper arm bar applying external force with the demand of satisfied cutting.

Description

For cutting the device of trees

Technical field

This utility model relates to a kind of gardening pruning device, specifically refers to the device for cutting trees.

Background technology

At present, distribution line goes through streets and alleys becomes common phenomenon, but distribution line and the trees for urban beautification Between exist tree line contradiction day by day deepen, the particularly trees on the downside of distribution line.Thus, the trees on the downside of distribution line are repaiied Being cut into the key for city line safety work, if leaving its free growth, the own growth of trees is likely to contact To circuit, cause circuit stress damaged or directly result in phase fault, so, not only can cause in the most power supply in city Only, it is also possible to time serious cause fire.Additionally, on tree body with high-tension current can injure passing pedestrian, and to maintenance The personal safety of the staff of circuit causes huge threat.Therefore, the trees on the downside of distribution line must be carried out reasonably Prune.Traditional processing mode is before laying-out, artificial use the apparatuses such as cutter to the branch on distribution line or Trees are pruned, but this type of method operational hazards, the personal safety of staff can not be guaranteed；Another kind of is to pass through high-altitude Operation Van modifies, and this kind of mode is simple to operate, and safety coefficient is high, but the use cost of high-altitude operation vehicle is high, is suitable for ring Border limitation is high.

Utility model content

The purpose of this utility model is the device provided for cutting trees, and fast and easy is to the tree on the downside of distribution line Wood is pruned, and increases the range pruning structure, it is ensured that the branch manually treating pruning on the ground carries out safe behaviour Make.

The purpose of this utility model is achieved through the following technical solutions:

For cutting the device of trees, it is characterised in that: include screw rod, cutting base and cutting assembly, cutting assembly bag Include two bracers being oppositely arranged and being fixed on cutting base upper surface and be arranged on two bracers by bearing rotation Rotating shaft, rotating shaft is arranged with gear saw blade, and the lower end of screw rod is arranged with sleeve, and cutting base is run through in the upper end of screw rod, and in this End termination is provided with the bevel gear being positioned at above cutting base, and termination, rotating shaft one end is provided with the conical tooth matched with bevel gear Wheel；Also include that upper arm assembly, upper arm assembly include the upper arm bar being arranged on cutting base sidewall and the upper arm head in reversed J shape, The upper end of upper arm bar is provided with the holding tank of indent, and the lower end in upper arm head erect portion is inserted in holding tank, is fixed with in holding tank The first torsion spring being connected with upper arm head erect portion, the lower end of upper arm head bending section is provided with chute, also includes flexibility and upper arm The non-slipping block that head bending section adapts, the upper end of non-slipping block is provided with the draw runner that can match with chute and insert in chute, anti- Slide block width along upper arm head bending section axis direction is more than upper arm head width on this axis direction.

In this utility model, sleeve can use the isolation material that intensity is bigger, so, in operation it can be avoided that with The high-tension current injury on workman and the impact on operating efficiency on trunk.During work, need artificial by sleeve and cutting Base lifts, and the band saw cut used in prior art, the weight of itself is relatively big, needs when lifting it to expend Too much muscle power, adds the greening arbor working strength when pruning, and the band saw cut used is applicable to large-scale branch, When cutting middle-size and small-size branch, being limited to the length of band saw, saw blade is easy to stuck in cut portion.And this reality With novel when cutting, the upper arm assembly on cutting base sidewall and gear saw blade are applied to residual part and the cutting of branch respectively Portion, so-called residual part refers to that branch stays the part on trunk after having cut, utilizes residual part to hang cutting base Hang so that operator can realize the cutting action to branch under less force state.When residual part and cutting part Position have when slightly misplacing, it can be made relatively to hang under the elastic deformation effect of the first torsion spring by upper arm bar is applied external force Arm head carries out the little scope rotation demand with satisfied cutting.

Wherein, being provided with non-slipping block on the bending section lower end of upper arm head, this non-slipping block can be with the outer circle wall of residual part Upper laminating.The width of non-slipping block is greater than the width of upper arm assembly, and then increases contacting between upper arm assembly and residual part Area, it is to avoid cutting base occurs that non-directional swings when fixed point cutting, reduces the occurrence probability of security incident.It addition, pass through Draw runner and the setting of chute, can be according to the position relationship between branch residual part and cutting part to adjust non-slipping block relative to upper arm head Position, so, non-slipping block can be made preferably to provide a supporting role power so that gear saw blade to cutting part do work.

For increasing the frictional force between non-slipping block and branch residual part, further, the lower end cambered surface of described non-slipping block sets There is a plurality of raised line arranged along described upper arm head bending section bending direction.So, a plurality of raised line is then common with the lower camber side of non-slipping block With forming asperities, and along the setting of upper arm head bending section bending direction, can ensure that upper arm assembly can be along upper arm head bending section While bending direction rotates, it is to avoid it affects the support to cutting base to the skew of other directions.

For realizing the installation on cutting base of the upper arm bar, further, also include connecting assembly, connect assembly and include turning Move the minor arc plate being arranged on described cutting base and be fixed on cutting base and pass the backing pin of minor arc plate, described upper arm bar Inner side have link slot, the free end of minor arc plate is connected in link slot by the second torsion spring.In this utility model, by upper arm Head hangs over the residual part of branch, due to minor arc plate can on cutting base freely rotatable, thus removable cutting base makes tooth Wheel saw blade is just directed at cutting part, so, then can realize the upper arm assembly suspension active force to cutting base.

For ease of realize cutting base to the locking of upper arm module position with separate, further, also include being fixed on institute Stating on cutting base and be provided with ratchet, the lower end of described upper arm bar can be meshed with ratchet.Artificial promotion sleeve makes gear saw Sheet starts to cut trunk so that upper arm assembly is by an active force towards gear saw blade, and at this moment, the second torsion spring stress makes The lower end of upper arm bar is separated with ratchet, and so, removable cutting base is so that gear saw blade cuts the cutting part of branch；When During the cutting of gear saw blade because of fault or staff need rest time, gear saw blade stops cutting to cutting part, Second torsion spring stress disappears and the lower end of upper arm bar is engaged again with ratchet, so, is then carried out the position of upper arm assembly Locking, so can remain the upper arm assembly suspension status to trunk, it is to avoid cutting base falls and causes security incident.

This utility model compared with prior art, has such advantages as and beneficial effect:

1, this utility model utilizes the residual part suspension to cutting base so that operator can be in less force state The cutting action to branch can be realized down, when the position of residual part Yu cutting part has and slightly misplaces, can be by upper arm bar Apply external force to make it carry out little scope relative to upper arm head under the elastic deformation effect of the first torsion spring to rotate with the need of satisfied cutting Ask.

2, in this utility model, the width of non-slipping block is greater than the width of upper arm assembly, so increase upper arm assembly with Contact area between residual part, it is to avoid cutting base occurs that non-directional swings when fixed point cutting, reduces sending out of security incident Raw probability.It addition, by the setting of draw runner with chute, can be according to the position relationship between branch residual part and cutting part to adjust Non-slipping block is relative to the position of upper arm head, so, non-slipping block can be made preferably to provide a supporting role power so that gear saw blade Cutting part is done work.

3, in this utility model, when needing rest because of fault or staff during gear saw blade cuts, tooth Wheel saw blade stops the cutting to cutting part, and the second torsion spring stress disappears and the lower end of upper arm bar is engaged again with ratchet, so, Then the position of upper arm assembly is locked, so can be remained the upper arm assembly suspension status to trunk, it is to avoid cutting Base falls and causes security incident.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the one of the application Part, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:

Fig. 1 is the structural representation of one specific embodiment of device for cutting trees described in the utility model；

Fig. 2 is the cross section of one specific embodiment of cutting base in the device for cut trees described in the utility model Figure；

Fig. 3 is upper arm bar and first specific embodiment of upper arm in the device for cut trees described in the utility model Structural representation；

Fig. 4 is ratchet and one specific embodiment of minor arc plate in the device for cut trees described in the utility model Structural representation；

Fig. 5 is that in the device for cut trees described in the utility model, the structure of one specific embodiment of non-slipping block is shown It is intended to.

Labelling and corresponding parts title in accompanying drawing: 1, sleeve, 2, cutting base, 3, gear saw blade, 4, upper arm assembly, 5, minor arc plate, 6, backing pin, 7, arc-shaped through-hole, 8, ratchet, the 9, second torsion spring, 10, screw rod, 11, rotating shaft, 12, a bracer, 13, umbrella Gear, 14, non-slipping block, 15, angular wheel, 16, upper arm bar, 17, upper arm head, 18, holding tank, the 19, first torsion spring, 20, chute, 21, draw runner, 22, raised line.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this Utility model, is not intended as restriction of the present utility model.

Embodiment 1

As shown in Figures 1 to 5, for cutting the device of trees, including screw rod 10, cutting base 2 and cutting assembly, cutting Assembly includes two bracers 12 being oppositely arranged and being fixed on cutting base 2 upper surface and is arranged at two by bearing rotation Rotating shaft 11 on bracer 12, rotating shaft 11 is arranged with gear saw blade 3, and the lower end of screw rod 10 is arranged with sleeve 1, the upper end of screw rod 10 Running through cutting base 2, and be provided with the bevel gear 13 being positioned at above cutting base 2 in this end termination, termination, rotating shaft 11 one end is pacified Equipped with the angular wheel 15 matched with bevel gear 13；Also include that upper arm assembly 4, upper arm assembly include being arranged on cutting base 2 Upper arm bar 16 on sidewall and the upper arm in reversed J shape 17, the upper end of upper arm bar 16 is provided with the holding tank 18 of indent, upper arm head The lower end of 17 vertical portions is inserted in holding tank 18, is fixed with the first torsion spring being connected with upper arm 17 vertical portion in holding tank 18 19, the lower end of upper arm 17 bending section is provided with chute 20, also includes that flexibility is anti-skidding with what upper arm 17 bending section adapted Block 14, the upper end of non-slipping block 14 is provided with the draw runner 21 that can match with chute 20 and insert in chute 20, and non-slipping block 14 is along extension Width on arm head 17 bending section axis direction is more than the upper arm 17 width on this axis direction.

In this utility model, sleeve 1 can use the isolation material that intensity is bigger, so, in operation it can be avoided that With the injury on workman of the high-tension current on trunk and the impact on operating efficiency.During work, need artificial by sleeve 1 and cut Cut base 2 to lift, and the band saw cut used in prior art, the weight of itself is relatively big, needs when lifting it Expend too much muscle power, add the greening arbor working strength when pruning, and the band saw cut used is applicable to large-scale Branch, when cutting middle-size and small-size branch, is limited to the length of band saw, and saw blade is easy to stuck in cut portion. And this utility model is when cutting, the upper arm assembly 4 on cutting base 2 sidewall is applied to the residual of branch respectively with gear saw blade 3 Stay portion and cutting part, so-called residual part to refer to that branch stays the part on trunk after having cut, utilize residual part to cutting Cut the suspension of base 2 so that operator can realize the cutting action to branch under less force state.Work as residual The position of portion and cutting part has when slightly misplacing, and it can be made in the elastic shape of the first torsion spring 19 by upper arm bar 16 applies external force Carry out little scope relative to upper arm 17 under change effect to rotate with the demand of satisfied cutting.

Wherein, the bending section lower end of upper arm 17 is provided with non-slipping block 14, outside this non-slipping block 14 can be with residual part Fit in circumferential wall.The width of non-slipping block 14 is greater than the width of upper arm assembly 4, and then increases upper arm assembly 4 and residual part Between contact area, it is to avoid fixed point cutting time cutting base occur that non-directional swings, reduction security incident occurrence probability. It addition, by the setting of draw runner 21 with chute 20, can be anti-to adjust according to the position relationship between branch residual part and cutting part The position of the relative upper arm 17 of slide block 14, so, can make non-slipping block 14 preferably can provide a supporting role power so that gear Cutting part is done work by saw blade 3.

For increasing the frictional force between non-slipping block 14 and branch residual part, it is preferable that the lower end cambered surface of described non-slipping block 14 It is provided with a plurality of raised line 22 arranged along described upper arm 17 bending section bending direction.So, a plurality of raised line 22 then with non-slipping block 14 Lower camber side be collectively forming asperities, and along the setting of upper arm 17 bending section bending direction, can ensure that upper arm assembly 4 can edge While upper arm 17 bending section bending direction rotates, it is to avoid it affects the support to cutting base 2 to the skew of other directions.

For realizing the upper arm bar 16 installation on cutting base 2, it is preferable that also include connecting assembly, connect assembly and include Rotate the backing pin 6 being arranged on the minor arc plate 5 on described cutting base 2 and being fixed on cutting base 2 and pass minor arc plate 5, institute The inner side stating upper arm bar 16 has link slot, and the free end of minor arc plate 5 is connected in link slot by the second torsion spring 9.This enforcement In example, upper arm 17 is hung over the residual part of branch, due to minor arc plate 5 can on cutting base 2 freely rotatable, thus removable Cutting base 2 makes gear saw blade 3 just be directed at cutting part, so, then can realize the upper arm assembly 4 suspension to cutting base 2 Active force.

For ease of realize cutting base 2 to the locking of upper arm assembly 4 position with separate, it is preferable that also include being fixed on institute Stating on cutting base 2 and be provided with ratchet 8, the lower end of described upper arm bar 16 can be meshed with ratchet 8.Artificial promotion sleeve 1 makes Gear saw blade 3 starts to cut trunk so that upper arm assembly 4 is by an active force towards gear saw blade 3, and at this moment, second turns round Spring 9 stress makes the lower end of upper arm bar 16 be separated with ratchet 8, and so, removable cutting base 2 is so that gear saw blade 3 is cut Cut the cutting part of branch；When needing rest because of fault or staff during gear saw blade 3 cuts, gear saw blade 3 Stopping the cutting to cutting part, the second torsion spring 9 stress disappears and the lower end of upper arm bar 16 is engaged again with ratchet 8, so, then The position of upper arm assembly 4 is locked, so can be remained the upper arm assembly 4 suspension status to trunk, it is to avoid cutting Base 2 falls and causes security incident.

As preferably, the central angle of described arc-shaped through-hole 7 is 15 °～60 °.The central angle size of arc-shaped through-hole 7, direct shadow Ring to minor arc plate 55 and the slewing area of upper arm assembly 44, according to the diameter of trunk to be cut, when the circle of arc-shaped through-hole 7 When heart angle is less than 15 °, the slewing area of upper arm assembly 44 is too small, and gear saw blade 33 can only cut the trunk of small diameter, causes Practicality of the present utility model reduces；When the central angle of arc-shaped through-hole 7 is more than 60 °, the rotational angle of upper arm assembly 44 is excessive, Upper arm assembly 44 is clamped on trunk tight, easily occur in cutting process more than the situation of upper arm assembly 44 landing Content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to assert this utility model Detailed description of the invention be confined to these explanations.For this utility model person of an ordinary skill in the technical field, Other embodiments drawn under without departing from the technical solution of the utility model, should be included in protection model of the present utility model In enclosing.

Claims (4)

1. for cutting the device of trees, it is characterised in that: include screw rod (10), cutting base (2) and cutting assembly, cutting group Part includes two bracers (12) being oppositely arranged and being fixed on cutting base (2) upper surface and is arranged at two by bearing rotation Propping up the rotating shaft (11) on bracer (12), rotating shaft (11) is arranged with gear saw blade (3), the lower end of screw rod (10) is arranged with sleeve (1), cutting base (2) is run through in the upper end of screw rod (10), and is provided with the umbrella tooth being positioned at cutting base (2) top in this end termination Wheel (13), rotating shaft (11) termination, one end is provided with the angular wheel (15) matched with bevel gear (13)；Also include upper arm assembly (4), upper arm assembly includes the upper arm bar (16) being arranged on cutting base (2) sidewall and the upper arm head (17) in reversed J shape, upper arm The upper end of bar (16) is provided with the holding tank (18) of indent, and the lower end of upper arm head (17) vertical portion is inserted in holding tank (18), holds Receiving and be fixed with the first torsion spring (19) being connected with upper arm head (17) vertical portion in groove (18), the lower end of upper arm head (17) bending section sets It is equipped with chute (20), also includes the non-slipping block (14) that flexibility and upper arm head (17) bending section adapt, non-slipping block (14) upper End is provided with the draw runner (21) that can match with chute (20) and insert in chute (20), and non-slipping block (14) is curved along upper arm head (17) Width on pars convoluta axis direction is more than the upper arm head (17) width on this axis direction.

Device for cutting trees the most according to claim 1, it is characterised in that: the lower end arc of described non-slipping block (14) Face is provided with a plurality of raised line (22) arranged along described upper arm head (17) bending section bending direction.

3. according to the device for cutting trees described in any one in claim 1～2, it is characterised in that: also include even Connected components, connects minor arc plate (5) that assembly includes that rotation is arranged on described cutting base (2) and is fixed on cutting base (2) Going up and pass the backing pin (6) of minor arc plate (5), the inner side of described upper arm bar (16) has link slot, and the free end of minor arc plate (5) leads to Cross the second torsion spring to be connected in link slot.

Device for cutting trees the most according to claim 3, it is characterised in that: also include being fixed at the bottom of described cutting Seat (2) is upper and is provided with ratchet (8), and the lower end of described upper arm bar (16) can be meshed with ratchet (8).