CN206005295U - Adjustable for height trimmer - Google Patents

Abstract

The utility model discloses adjustable for height trimmer, including screw rod, cutting base and cutting assembly, cutting assembly includes two support blocks and rotating shaft, gear saw blade is arranged with rotating shaft, run through cutting base in the upper end of screw rod, and the bevel gear above cutting base is installed in the end termination, rotating shaft one end termination is provided with the angular wheel being engaged with bevel gear；Also include upper arm component and upper arm head, upper arm component includes upper arm bar A and upper arm bar B, the upper end of upper arm bar is provided with holding tank, insert in holding tank the lower end in upper arm head erect portion, the first torsion spring is fixed with holding tank, the lower end of upper arm head bending section is provided with chute, also includes that non-slipping block, the upper end of non-slipping block are provided with draw runner.In this utility model, by the setting of upper arm bar A and upper arm bar B, positions of the upper arm bar B with respect to upper arm bar A can be changed to adjust the length of upper arm component to adapt to the height distance between residual part and cutting part.

Description

Adjustable for height trimmer

Technical field

This utility model is related to a kind of gardening pruning device, specifically refers to adjustable for height trimmer.

Background technology

At present, distribution line going through streets and alleys common phenomenon of become, but distribution line and the trees for urban beautification Between the tree line contradiction that exists day by day deepen, particularly trees on the downside of distribution line.Thus, the trees on the downside of distribution line are repaiied The key for city line safety work is cut into, 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, can not only cause in the most power supply in city Only, it is also possible to cause fire when serious.Additionally, the high-tension current carried in tree body 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 be before laying-out, manually using the apparatuses such as cutter to the branch on distribution line or Trees are pruned, but such method operational hazards, and the personal safety of staff cannot be guaranteed；Another kind of is by 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 to provide adjustable for height trimmer, and fast and easy is to the trees on the downside of distribution line Pruned, the use range of structure is pruned in increase, it is ensured that the branch for manually treating pruning on the ground carries out safety operation.

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

Adjustable for height trimmer, including screw rod, cutting base and cutting assembly, cutting assembly includes that two are oppositely arranged And be fixed on the support block of cutting base upper surface and the rotating shaft being arranged in two support blocks is rotated by bearing, it is arranged in rotating shaft There is a gear saw blade, the lower end of screw rod is arranged with sleeve, and cutting base is run through in the upper end of screw rod, and be provided with the end termination and be located at Bevel gear above cutting base, rotating shaft one end termination are provided with the angular wheel being engaged with bevel gear；Also include upper arm group Part and the upper arm head in reversed J shape, upper arm component include upper arm bar A and upper arm bar B on the wall of cutting base side, upper arm bar A is in hollow setting, and the upper end open width of upper arm bar A is less than its lumen width, arranges on the side wall of upper arm bar A inner chambers The lower end for having the screw thread A axially arranged along upper arm bar A, upper arm bar B is provided with screw thread of the width more than upper arm bar A A/Fs Head, thread head are inserted and are provided with the screw thread B that can be coordinated with screw thread A screw threads in upper arm bar A on intracavity, and the side wall of thread head, The upper end of upper arm bar B 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 holding tank The first torsion spring being connected with upper arm head erect portion.

In this utility model, sleeve can adopt the larger isolation material of intensity, so, can avoid in operation with Injury of the high-tension current to workman and the impact to operating efficiency on trunk.During work, need manually by sleeve and cutting Base is lifted, and the band saw cut adopted in prior art, and the weight of itself is larger, needs to expend when which is lifted Excessive muscle power, increased working strength of the greening arbor when pruning, and the band saw cut for adopting is applied to large-scale branch, When cutting to middle-size and small-size branch, the length with saw is limited to, saw blade is easy to stuck in cut portion.And this reality With new in cutting, the upper arm head and gear saw blade being connected with the upper arm component on the wall of cutting base side is applied to branch respectively Residual part and cutting part, so-called residual part refers to the part that branch is stayed on trunk after the completion of cutting, using residual part Suspension to cutting base so that operator can achieve the cutting action to branch under less force state.When The related effect of minor arc plate when there is slightly dislocation the position of residual part and cutting part, can be passed through, applying external force to upper arm component makes Which under the elastic deformation effect of the first torsion spring carries out small range relative to upper arm head and rotates to meet the demand of cutting.

Wherein, by the setting of upper arm bar A and upper arm bar B, positions of the upper arm bar B with respect to upper arm bar A can be changed to adjust The length of upper arm component is adapting to the height distance between residual part and cutting part.Specifically, rotate upper arm bar B and cause screw thread B Corresponding upper arm bar A is not provided with the position of screw thread A, and now, retractable upper arm bar B is adjusting position of its relative upper arm bar A Put.To be adjusted good after, then rotate backward upper arm bar B so that screw thread B is turned to and is engaged to lock the position with screw thread A, so as to The length of now upper arm component can be kept.

Further, also include the non-slipping block that flexibility is adapted with the upper arm head bending section, non-slipping block is along upper arm head Width on bending section axis direction is more than width of the upper arm head on the axis direction, and the lower end of upper arm head bending section is provided with Chute, the upper end of non-slipping block are provided with the draw runner that can be engaged with chute and insert in chute.In this utility model, in upper arm head Bending section lower end on non-slipping block is installed, the non-slipping block can be fitted with the outer circle wall of residual part.The width of non-slipping block will More than the width of upper arm head, and then increase the contact area between upper arm head and residual part, it is to avoid cut in fixed point cutting There is non-directional swing in base, reduces the occurrence probability of security incident.In addition, by the setting of draw runner and chute, can be according to branch Position relationship between dry residual part and cutting part so, can cause non-slipping block to adjust the position of the relative upper arm head of non-slipping block Power can preferably be provided a supporting role to do work cutting part in order to gear saw blade.

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

For realizing installation of the upper arm component on cutting base, further, also include that coupling assembly, coupling assembly include The minor arc plate that is rotatably arranged on the cutting base and it is fixed on cutting base and the backing pin through minor arc plate, the upper arm Link slot is provided with the inside of bar A, and the free end of minor arc plate is connected in link slot by the second torsion spring.In this utility model, will Upper arm head hangs over the residual part of branch, and as minor arc plate can be freely rotated on cutting base, thus removable cutting base makes Obtain gear saw blade and be just directed at cutting part, thus, then can achieve the suspension active force of upper arm component and upper arm head 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 Ratchet is stated on cutting base and is provided with, the lower end of the upper arm bar A can be meshed with ratchet.Artificial promotion sleeve causes gear to saw Piece starts to cut trunk so that upper arm component is subject to an active force towards gear saw blade, and at this moment, the second torsion spring stress is caused The lower end of upper arm bar A is separated with ratchet, thus, removable cutting base cuts the cutting part of branch in order to gear saw blade； When during gear saw blade cuts, barrier or staff need rest for some reason, gear saw blade stops cutting cutting part Cut, the second torsion spring stress disappears and the lower end of upper arm bar A is engaged again with ratchet, thus, then by upper arm component and upper arm head Position locked, can so remain the suspension status of upper arm component and upper arm head to trunk, it is to avoid cutting base Fall and cause security incident.

This utility model compared with prior art, has the following advantages and advantages：

1st, this utility model utilizes suspension of the residual part to cutting base so that operator can be in less force state Under can achieve cutting action to branch, when there is slightly dislocation the position of residual part and cutting part, minor arc plate can be passed through Related effect, applying external force to upper arm component makes its relative upper arm head under the elastic deformation effect of the first torsion spring carry out small range Rotate to meet the demand of cutting.

2nd, in this utility model, by the setting of upper arm bar A and upper arm bar B, upper arm bar B can be changed with respect to upper arm bar A's Position is adjusting the length of upper arm component to adapt to the height distance between residual part and cutting part.And pass through screw thread A and screw thread B Setting, the position of relative for upper arm bar B upper arm bar A can be locked to keep the length of upper arm component.

3rd, in this utility model, the width of non-slipping block is greater than the width of upper arm head, and then increases upper arm head and residual Contact area between portion, it is to avoid non-directional swing occurs in cutting base in fixed point cutting, and the generation for reducing security incident is several Rate.In addition, by the setting of draw runner and chute, can be anti-skidding to adjust according to the position relationship between branch residual part and cutting part Position of the block with respect to upper arm head, so, can enable non-slipping block preferably to provide a supporting role power in order to gear saw blade to cutting Cut portion's acting.

4th, in this utility model, when during gear saw blade cuts, barrier or staff need rest for some reason, 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 A is engaged again with ratchet, such as This, then locked the position of upper arm component and upper arm head, can so remain upper arm component and upper arm head to trunk Suspension status, it is to avoid cutting base falls and causes security incident.

Description of the drawings

Accompanying drawing described herein is used for providing further understanding this utility model embodiment, constitutes the one of the application Part, does not constitute the restriction to this utility model embodiment.In the accompanying drawings：

Fig. 1 is the structural representation of one specific embodiment of adjustable for height trimmer described in the utility model；

Fig. 2 is the section of one specific embodiment of cutting base in adjustable for height trimmer described in the utility model Figure；

Fig. 3 is upper arm bar B and upper arm first specific embodiment in adjustable for height trimmer described in the utility model Structural representation；

Fig. 4 is mono- specific embodiment of upper arm bar A and upper arm bar B in adjustable for height trimmer described in the utility model Structural representation；

Fig. 5 is the knot of one specific embodiment of ratchet and minor arc plate in adjustable for height trimmer described in the utility model Structure schematic diagram；

Fig. 6 is the structural representation of one specific embodiment of non-slipping block in adjustable for height trimmer described in the utility model Figure.

Labelling and corresponding parts title in accompanying drawing：1st, sleeve, 2, cutting base, 3, gear saw blade, 4, upper arm component, 5th, 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, support block, 13, umbrella Gear, 14, non-slipping block, 15, angular wheel, 16, upper arm bar A, 17, upper arm head, 18, holding tank, the 19, first torsion spring, 20, sliding Groove, 21, draw runner, 22, raised line, 23, upper arm bar B, 24, thread head, 25, screw thread A, 26, screw thread B.

Specific embodiment

For making the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiment and accompanying drawing, The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this Utility model, is not intended as to restriction of the present utility model.

Embodiment 1

As shown in Figures 1 to 6, adjustable for height trimmer, including screw rod 10, cutting base 2 and cutting assembly, cutting group Part includes two support blocks 12 for being oppositely arranged and being fixed on 2 upper surface of cutting base and rotates by bearing being arranged at two supports Rotating shaft 11 on block 12, is arranged with gear saw blade 3 in rotating shaft 11, the lower end of screw rod 10 is arranged with sleeve 1, and the upper end of screw rod 10 is passed through Cutting base 2 is worn, and the bevel gear 13 above cutting base 2 is installed in the end termination, 11 one end termination of rotating shaft is installed There is the angular wheel 15 being engaged with bevel gear 13；Also include that upper arm component 4 and the upper arm in reversed J shape 17, upper arm component 4 are wrapped The upper arm bar A16 and upper arm bar B23, upper arm bar A16 on 2 side wall of cutting base is included in hollow setting, and upper arm bar A16 Upper end open width less than its lumen width, be provided with the side wall of upper arm bar A16 inner chambers and axially set along upper arm bar A16 The lower end of the screw thread A25 for putting, upper arm bar B23 is provided with thread head 24 of the width more than upper arm bar A16 A/Fs, thread head 24 Insert and in upper arm bar A16, on intracavity, and the side wall of thread head 24, be provided with the screw thread B26 that can coordinate with screw thread A25 screw threads, hang The upper end of armed lever B23 is provided with the holding tank 18 of indent, and the lower end of 17 vertical portion of upper arm is inserted in holding tank 18, holding tank 18 First torsion spring 19 that with upper arm 17 vertical portion be connected inside is fixed with.

In this utility model, the isolation material that sleeve 1 can adopt intensity larger so, can be avoided in operation With injury of the high-tension current on trunk to workman and the impact to operating efficiency.During work, needs manually by sleeve 1 and are cut Cut base 2 to lift, and the band saw cut adopted in prior art, the weight of itself is larger, the needs when which is lifted Excessive muscle power is expended, working strength of the greening arbor when pruning is increased, and the band saw cut for adopting is suitable for large-scale Branch, when cutting to middle-size and small-size branch, is limited to the length with saw, and saw blade is easy to stuck in cut portion. And this utility model is in cutting, 3 points of the upper arm 17 being connected with the upper arm component 4 on 2 side wall of cutting base and gear saw blade Residual part and the cutting part of branch are not applied to, and so-called residual part refers to the portion that branch is stayed on trunk after the completion of cutting Point, using suspension of the residual part to cutting base 2 so that operator can be can achieve to branch under less force state Cutting action.When residual part and the position of cutting part have slightly to misplace, the related effect of minor arc plate 5 can be passed through, to upper arm Component 4 applies external force makes which under the elastic deformation effect of the first torsion spring 19 carry out small range rotation to meet relative to upper arm 17 The demand of cutting.

Wherein, by the setting of upper arm bar A16 and upper arm bar B23, positions of the upper arm bar B23 with respect to upper arm bar A16 can be changed Put the length that adjusts upper arm component 4 adapting to the height distance between residual part and cutting part.Specifically, upper arm bar is rotated B23 causes the corresponding upper arm bar A16 of screw thread B26 to be not provided with the position of screw thread A25, and now, retractable upper arm bar B26 is adjusting The position of its relative upper arm bar A16 whole.To be adjusted good after, then rotate backward upper arm bar B23 so that screw thread B26 is turned to and spiral shell Stricture of vagina A25 is engaged to lock the position, so as to keep the length of now upper arm component 4.

Preferably, also include the non-slipping block 14 that flexibility is adapted with 17 bending section of the upper arm, non-slipping block 14 is along extension Width on 17 bending section axis direction of arm head is more than width of the upper arm 17 on the axis direction, 17 bending section of upper arm Lower end is provided with chute 20, and the upper end of non-slipping block 14 is provided with the draw runner 21 that can be engaged with chute 20 and insert in chute 20. In the present embodiment, non-slipping block 14 is installed on the bending section lower end of upper arm 17, the non-slipping block 14 can be cylindrical with residual part Fit on perisporium.The width of non-slipping block 14 is greater than the width of upper arm 17, and then increases between upper arm 17 and residual part Contact area, it is to avoid fixed point cutting when cutting base occur non-directional swing, reduce security incident occurrence probability.Separately Outward, by the setting of draw runner 21 and chute 20, can be anti-skidding to adjust according to the position relationship between branch residual part and cutting part The position of 14 relative upper arm 17 of block, so, can enable non-slipping block 14 preferably to provide a supporting role power and saw in order to gear Piece 3 does work to cutting part.

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

For realizing installations of the upper arm bar A16 on cutting base 2, it is preferable that also include that coupling assembly, coupling assembly include The minor arc plate 5 that is rotatably arranged on the cutting base 2 and it is fixed on cutting base 2 and the backing pin 6 through minor arc plate 5, institute State and on the inside of upper arm bar A16, be provided with link slot, the free end of minor arc plate 5 is connected in link slot by the second torsion spring 9.This enforcement In example, residual part that upper arm 17 is hung over branch, as minor arc plate 5 can be freely rotated on cutting base 2, thus removable Cutting base 2 causes gear saw blade 3 to be just directed at cutting part, thus, then can achieve 17 pairs of cutting bottoms of upper arm component 4 and upper arm The suspension active force of seat 2.

For ease of realize cutting base 2 to the locking of 17 position of upper arm component 4 and upper arm with separate, it is preferable that also wrap Include and be fixed on the cutting base 2 and be provided with ratchet 8, the lower end of the upper arm bar A16 can be meshed with ratchet 8.Manually push away Moving sleeve 1 causes gear saw blade 3 to start to cut trunk so that upper arm component 4 is subject to an active force towards gear saw blade 3, At this moment, 9 stress of the second torsion spring causes the lower end of upper arm bar A16 and ratchet 8 to be separated, thus, removable cutting base 2 in order to Gear saw blade 3 cuts the cutting part of branch；Hinder during gear saw blade 3 cuts for some reason or staff needs to rest When, gear saw blade 3 stops the cutting to cutting part, and 9 stress of the second torsion spring disappears and causes lower end and 8 weight of ratchet of upper arm bar A16 New engagement, thus, then being locked the position of upper arm component 4, can so remain the suspension of 17 pairs of trunks of upper arm State, it is to avoid cutting base 2 falls and causes security incident.

Preferably, the central angle of the arc-shaped through-hole 7 is 15 °～60 °.The central angle size of arc-shaped through-hole 7, direct shadow The slewing area to minor arc plate 5 and upper arm component 4 is rung, according to the diameter of trunk to be cut, when the center of circle of arc-shaped through-hole 7 When angle is less than 15 °, the slewing area of the drive upper arm 17 of upper arm component 4 is too small, and gear saw blade 3 can only cut the tree of small diameter Dry, cause practicality of the present utility model to reduce；When the central angle of arc-shaped through-hole 7 is more than 60 °, upper arm component 4 drives upper arm 17 rotational angle is excessive so that upper arm 17 is clamped on trunk closely, easily occurs in upper arm head in cutting process The situation of 17 landings.

Above content is the further description that this utility model is made with reference to specific preferred implementation, it is impossible to recognize Fixed specific embodiment of the present utility model is confined to these explanations.Common skill for this utility model art For art personnel, the other embodiment that draws under without departing from the technical solution of the utility model should be included in this practicality In new protection domain.

Claims (5)

1. adjustable for height trimmer, it is characterised in that：Including screw rod (10), cutting base (2) and cutting assembly, cutting assembly The support block (12) of cutting base (2) upper surface is oppositely arranged and is fixed on including two and is rotated by bearing be arranged at two Rotating shaft (11) on bracer (12), is arranged with gear saw blade (3) in rotating shaft (11), 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 bevel gear above cutting base (2) in the end termination (13), rotating shaft (11) one end termination is provided with the angular wheel (15) being engaged with bevel gear (13)；Also include upper arm component (4) And the upper arm head (17) in reversed J shape, upper arm component (4) include upper arm bar A (16) on the wall of cutting base (2) side and hang Armed lever B (23), upper arm bar A (16) are in hollow setting, and the upper end open width of upper arm bar A (16) is less than its lumen width, The screw thread A (25) axially arranged along upper arm bar A (16) is provided with the side wall of upper arm bar A (16) inner chamber, upper arm bar B (23) Lower end is provided with thread head (24) of the width more than upper arm bar A (16) A/F, and thread head (24) is inserted in upper arm bar A (16) The screw thread B (26) that can coordinate with screw thread A (25) screw thread, upper arm bar B (23) is provided with intracavity, and the side wall of thread head (24) Upper end be provided with the holding tank (18) of indent, the lower end of upper arm head (17) vertical portion is inserted in holding tank (18), holding tank (18) the first torsion spring (19) being connected with upper arm head (17) vertical portion is fixed with.

2. adjustable for height trimmer according to claim 1, it is characterised in that：Also include flexibility with the upper arm head (17) non-slipping block (14) that bending section is adapted, non-slipping block (14) are more than along the width on upper arm head (17) bending section axis direction Width of the upper arm head (17) on the axis direction, the lower end of upper arm head (17) bending section are provided with chute (20), non-slipping block (14) upper end is provided with the draw runner (21) that can be engaged with chute (20) and insert in chute (20).

3. adjustable for height trimmer according to claim 2, it is characterised in that：The lower end cambered surface of non-slipping block (14) It is provided with a plurality of raised line (22) arranged along upper arm head (17) bending section bending direction.

4. the adjustable for height trimmer according to any one in claims 1 to 3, it is characterised in that：Also include connecting Component, coupling assembly include the minor arc plate (5) being rotatably arranged on the cutting base (2) and are fixed on cutting base (2) And the backing pin (6) through minor arc plate (5), link slot is provided with the inside of upper arm bar A (16), the free end of minor arc plate (5) leads to Cross the second torsion spring (9) to be connected in link slot.

5. adjustable for height trimmer according to claim 4, it is characterised in that：Also include being fixed on the cutting base (2) go up and be provided with ratchet (8), the lower end of upper arm bar A (16) can be meshed with ratchet (8).