CN112154801A

CN112154801A - Backpack type trimmer

Info

Publication number: CN112154801A
Application number: CN202011071054.9A
Authority: CN
Inventors: 李军
Original assignee: 李军
Current assignee: Yate garden Engineering Group Co.,Ltd.
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-01-01
Anticipated expiration: 2040-10-09
Also published as: CN112154801B

Abstract

A backpack type trimmer is characterized by comprising a backpack part, a rod part, scissors and an electric saw part, wherein the backpack part is a power transmission and control part; the tail end of the rod part is fixedly arranged at the upper end of the backpack part, a power shaft of the rod part is fixedly connected with an output shaft of the backpack part, and the backpack part provides power for the rod part; the scissors and electric saw part can be combined with the rod part and arranged at the upper end of the rod part. But the bending and the reseing of automatically regulated pole, the length of extension pole with reset and can be to the operation of cutting and sawing of branch, can prune the branch of co-altitude not, different positions and different angles, improved work efficiency, practice thrift the cost.

Description

Backpack type trimmer

Technical Field

The invention relates to the field of pruning tools, in particular to a backpack type pruning machine.

Background

With the improvement of living standard, the requirement on environment is gradually increased, and some trees need to be trimmed, so that the trees are more attractive; present pruning needs many people usually, and the working tool falls behind moreover, very big wasted time and cost, so need a knapsack formula trimming machine, but the full automatization advances to repair to trees and prunes, need satisfy the instrument convenience moreover, the demand of easy operation, the length of pole can be adjusted, and crooked also can be adjusted moreover.

Disclosure of Invention

In order to solve the problems, the invention provides a backpack type trimmer which comprises a backpack part, a rod part, scissors and an electric saw part, wherein the backpack part is a power transmission and control part; the tail end of the rod part is fixedly arranged at the upper end of the backpack part, a power shaft of the rod part is fixedly connected with an output shaft of the backpack part, and the backpack part provides power for the rod part; the scissors and the electric saw part can be combined with the rod part and arranged at the upper end of the rod part;

the technical scheme adopted by the invention is as follows: a backpack trimmer, said backpack portion comprising: the device comprises a shell a, braces, a shell b, a shell c, a motor, a gear mechanism, a speed change mechanism, an adjusting mechanism a and an adjusting mechanism b; the two braces are made of elastic materials, and two ends of each brace are fixedly connected to one side of the shell a; the rear end of the shell b is fixedly arranged on the right side of the shell a; the rear end of the shell c is fixedly arranged on the left side of the shell a; the motor is fixedly arranged in the shell a; the speed change mechanism is arranged inside the shell a; a motor output shaft of the motor is connected with a power shaft of the speed change mechanism through a synchronous belt arranged in the shell a; the gear mechanism is arranged in the shell a, and a power shaft of the gear mechanism is fixedly connected with an output shaft of the speed change mechanism; the adjusting mechanism a is arranged in the shell a and the shell b, the action end of the adjusting mechanism a is fixedly connected with the control end of the gear mechanism, and the handle at the front end control end of the adjusting mechanism a extends out of the front end of the shell b; the adjusting mechanism b is arranged in the shell a and the shell c, the acting end of the adjusting mechanism b is fixedly connected with the control end of the speed changing mechanism, and the front end of the adjusting mechanism b controls the handle to extend out of the front end of the shell c.

Further, the rod portion includes: the medial, cephalad and caudal joints; eight middle joints are provided; the bottom of the tail joint is fixedly connected with the upper end of the shell a; each middle joint is connected end to end, and the middle joint at the lowest end is connected with the tail joint; the lower end of the head joint is connected with the upper end of the middle joint at the uppermost end.

Further, the middle joint comprises a shell d, a shell e, a synchronizing wheel a, a connecting rod a, a gear a, an electromagnet a, a gear b, a gear c, a connecting rod b, a synchronizing wheel b, a rotating shaft a, a gear d, a rotating shaft b, a limiting part, a nut, an electromagnet b, a gear e, a gear f, a gear g, a lead screw and an internal gear; the shell d is arranged on the shell e in a sliding mode; the synchronizing wheel a is fixedly arranged on the connecting rod a; the connecting rod a is fixedly arranged on the gear a; the gear a is rotatably arranged on a positioning rod in the shell d; the electromagnet a is fixedly arranged in the shell d; the gear b is rotatably arranged on a circular shaft on the electromagnet a; the gear c is fixedly arranged at the left end of the connecting rod b; the connecting rod b is rotatably arranged on a round hole in the shell d; the synchronizing wheel b is fixedly arranged at the right end of the connecting rod b; the synchronous wheel b is connected with the synchronous wheel a through a synchronous belt; the upper end groove of the rotating shaft a is rotatably arranged in a round hole in the shell d; the gear d is fixedly arranged at the upper end of the rotating shaft a; gear d can be meshed with gear b; the gear b can be meshed with the gear a; the rotating shaft b is rotatably arranged in the shell e and is in sliding connection with the rotating shaft a; the lower end of the limiting part is movably connected in the groove at the lower end of the rotating shaft a, and the upper end of the limiting part is fixedly connected with one side of the nut; the nut is rotationally arranged on the lead screw and is in threaded fit with the lead screw; the electromagnet b is fixedly arranged in the shell e; the gear e is fixedly arranged at the lower end of the screw rod; the gear f is fixedly arranged on the circular shaft of the electromagnet b; the gear g is fixedly arranged at the lower end of the rotating shaft b; the screw rod is rotatably arranged in the shell e; the internal gear is arranged at the lower end of the shell e; the middle joints are connected end to end, the lower end of the shell e is rotatably arranged at the upper end of the shell d of the next joint, the gear c is meshed with the internal gear of the previous joint, and the lower end fork of the rotating shaft b is in fit contact with the fork at the upper end of the rotating shaft a of the next joint.

Furthermore, the tail joint comprises a shell f and a rotating shaft c, wherein the shell d is the same as the middle joint in part, the synchronizing wheel a, the connecting rod a, the gear a, the electromagnet a, the gear b, the gear c, the connecting rod b, the synchronizing wheel b, the rotating shaft a, the gear d, a limiting part, the nut, the electromagnet b, the gear e, the gear f, the gear g, the lead screw and an internal gear; the shell f is slidably arranged in the shell d; the parts of the middle joint arranged in the shell e are arranged in the shell f in the same way; the parts of the middle joint arranged on the rotating shaft b are arranged on the rotating shaft c in the same way; the outer shell d of the caudal joint is rotationally connected with the outer shell e of the middle joint at the lowest end; the gear c is meshed with the internal gear; the lower end fork of the rotating shaft b is in fit contact with the fork at the upper end of the next joint rotating shaft a; the lower end of the rotating shaft a is fixedly connected with the upper end of the shell a; the lower end of the rotating shaft c is fixedly connected with an output shaft of a gear mechanism in the shell a.

Furthermore, the head joint comprises a part shell e, a rotating shaft b, a limiting part, a nut, an electromagnet b, a gear e, a gear f, a gear g, a screw rod and a shell g, an electromagnet c and a rotating shaft d, wherein the part shell e, the rotating shaft b, the limiting part, the nut, the electromagnet b, the gear e, the gear f, the gear g, the screw rod and the rotating shaft d are the same as those; the shell g is slidably mounted on the shell e; the parts of the middle joint arranged in the shell d are arranged in the shell g in the same way; the parts of the middle joint arranged on the rotating shaft a are arranged on the rotating shaft d in the same way; the electromagnet c is fixedly arranged on one side of the shell g; the shell e of the head joint is rotatably arranged at the upper end of the shell d at the uppermost end; the lower end fork of the rotating shaft b is in fit contact with the upper end fork of the rotating shaft a of the middle joint; the rotating shaft d is slidably mounted on the rotating shaft b.

Further, the scissors and electric saw portion includes: a power saw portion and a trimming portion; the electric saw part and the trimming part are fixedly arranged on the rod part; the electric saw portion includes: the chain saw comprises a shell h, a rotating shaft e, a bevel gear a, a bevel gear b, a chain gear, a guide part and a chain saw blade; two rotating shafts e and two bevel gears a are respectively arranged; the shell h and the shell i can be screwed on the shell g; the rotating shaft e is rotatably arranged inside the shell h; the bevel gear a is fixedly arranged at the upper end of the rotating shaft e; the bevel gear b is rotatably arranged inside the shell h; bevel gear a is meshed with bevel gear b; the chain gear is fixedly arranged on the right side of the bevel gear b; the lower end of the guide part is fixed in the shell h, and the other end of the guide part penetrates through a hole in the shell h and extends out of the shell h; the chain saw blade is matched with the groove on the guide part in a rolling way; the teeth of the inner ring of the chain saw bar are meshed with the chain gear.

Further, the trimming portion includes: the cutting device comprises a fixed rod a, a bevel gear c, a fixed rod b, a blade a, a blade b and a shell i; the fixing rod a is fixedly arranged in the shell i; the bevel gear c is rotatably arranged at the right end of the fixed rod a; the fixing rod b is rotatably arranged inside the shell i; the blade a is fixedly arranged in the shell i, and the upper end of the blade a extends out of a hole in the upper side of the shell i; the round hole in the middle of the blade b is rotatably arranged on the fixing rod b, the groove in the lower end of the blade b is in sliding connection with the cylinder arranged at one end of the bevel gear c, and the upper half part of the blade b extends out of the hole in the shell i.

The invention has the advantages of

(1) When the working speed of the machine saw blade or the scissor head needs to be adjusted under special conditions, the adjusting mechanism b can be manually pulled; the adjusting mechanism b controls the speed change mechanism, so that the rotating speed of an output shaft of the speed change mechanism is increased, the working speed of the automatic adjusting machine is realized, and the working efficiency is improved.

(2) When the tree is trimmed, the angle of the rod needs to be bent under the conditions that the position and the angle of branches and the angle of the rod need to be adjusted in some cases; controlling the electromagnet a to work; the electromagnet a drives the gear b to move downwards, so that the gear b is meshed with the gear a and the gear d; when the machine works, the rotating shaft a rotates, and the rotating shaft a drives the gear d to rotate; the gear d drives the gear b to rotate; the gear b drives the gear a to rotate; the connecting rod a drives the synchronizing wheel a to rotate through the connecting rod a; the synchronizing wheel a drives the synchronizing wheel b to rotate; the synchronous wheel b drives the gear c to rotate through the connecting rod b; the gear c drives an inner gear of the upper joint to rotate; the inner gear drives the shell e to rotate; while at the same time the joint is bent; the branches of the rotating shaft a and the rotating shaft b in each joint are not bent and are not in contact with each other, and the branches are always in contact with each other to keep the transmission of the rotating force; thereby realized the full automatically regulated of the crooked of pole, avoided making the machine can not the problem of pruning to it because of the special position and the angle of branch, realized full automatization angle regulation, improved work efficiency.

(3) When the length of the rod is insufficient in the tree pruning process, the length of the rod needs to be extended, the electromagnet b is controlled to work, the electromagnet b drives the gear f, and the gear f is meshed with the gear g and the gear e; because the rotating shaft b rotates at this time; so the rotating shaft b drives the gear f to rotate; the gear f drives the gear e to rotate; the gear e drives the screw rod to rotate; the screw rod drives the nut to move upwards; the nut drives the limiting part to move; the limiting part drives the rotating shaft a to move upwards; the rotating shaft a drives the shell d to move upwards; meanwhile, the rotating shaft a, the rotating shaft b, the rotating shaft c and the rotating shaft d always rotate and cannot be influenced; therefore, the extension operation of the automatic control rod of the machine is realized, and the problems that the branches needing to be trimmed and sawed are too high and the rod is not long enough are avoided; the working efficiency is improved.

(4) When the angle and the length are required to be reset, the adjusting mechanism a can be manually pulled; the adjusting mechanism a drives the gear mechanism to rotate in the opposite direction; thereby realizing the bending and length resetting of the rod; the automatic tree pruning machine has the advantages that the automatic reset function of the machine is realized, the working efficiency is improved, and the machine can prune branches at different heights and different position angles.

Drawings

Fig. 1 and 2 are overall schematic views of the present invention.

Fig. 3 is an overall schematic view of the backpack of the present invention.

Fig. 4 and 5 are schematic views of the interior of the backpack of the present invention.

Fig. 6 and 7 are schematic views of the rod middle joint of the present invention.

Fig. 8 and 9 are schematic views of the interior of the joint of the present invention.

FIG. 10 is a schematic view of the caudal joint of the present invention.

FIG. 11 is an internal view of the caudal joint of the present invention.

Fig. 12 is a schematic view of the head joint of the present invention.

Fig. 13 is a schematic view of the interior of the cephalad joint of the present invention.

Fig. 14 is a schematic view of a portion of the saw blade and scissor head of the present invention.

Fig. 15 and 16 are schematic views of the interior of the saw blade and scissor head portion of the present invention.

1-a backpack portion; 2-a stem portion; 3-scissors and electric saw parts; 101-shell a; 102-a harness; 103-housing b; 104-shell c; 105-an electric machine; 106-gear mechanism; 107-a speed change mechanism; 108-adjustment mechanism a; 109-adjustment mechanism b; 201-housing d; 202-housing e; 203-synchronizing wheel a; 204-connecting rod a; 205-gear a; 206-electromagnet a; 207-gear b; 208-gear c; 209-connecting rod b; 210-synchronous wheel b; 211-axis of rotation a; 212-gear d; 213-axis of rotation b; 214-a stop feature; 215-a nut; 216-electromagnet b; 217-gear e; 218-gear f; 219-Gear g; 220-lead screw; 221-shell f; 222-axis of rotation c; 223-internal gear; 224-shell g; 225-electromagnet c; 226-axis of rotation d; 301-shell h; 302-rotation axis e; 303-bevel gear a; 304-bevel gear b; 305-chain gear; 306-a guide feature; 307-chain saw blade; 308-fixing rod a; 309-bevel gear c; 310-fixing bar b; 311-blade a; 312-blade b; 313-shell i.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-16, a backpack type trimmer comprises a backpack portion 1, a pole portion 2, scissors and an electric saw portion 3, wherein the backpack portion 1 is a power transmission and control portion; the tail end of the rod part 2 is fixedly arranged at the upper end of the backpack part 1, a power shaft of the rod part 2 is fixedly connected with an output shaft of the backpack part 1, and the backpack part 1 provides power for the rod part 2; the scissors and power saw portion 3 may be mounted on the upper end of the pole portion 2 in combination with the pole portion 2.

In an alternative embodiment of the present embodiment, the backpack portion 1 comprises, in addition to the same parts as the previous embodiment: a casing a101, a back belt 102, a casing b103, a casing c104, a motor 105, a gear mechanism 106, a speed change mechanism 107, an adjusting mechanism a108 and an adjusting mechanism b 109; two straps 102 are provided, the straps 102 are made of elastic materials, and two ends of the straps 102 are fixedly connected to one side of the casing a 101; the rear end of the shell b103 is fixedly arranged on the right side of the shell a 101; the rear end of the casing c104 is fixedly installed at the left side of the casing a 101; the motor 105 is fixedly installed inside the casing a 101; the speed change mechanism 107 is mounted inside the casing a 101; an output shaft of a motor 105 of the motor 105 is connected with a power shaft of a speed change mechanism 107 through a synchronous belt arranged in the shell a 101; the gear mechanism 106 is arranged inside the shell a101, and a power shaft of the gear mechanism 106 is fixedly connected with an output shaft of the speed change mechanism 107; the adjusting mechanism a108 is arranged inside the shell a101 and the shell b103, the acting end of the adjusting mechanism a108 is fixedly connected with the control end of the gear mechanism 106, and the handle at the front control end of the adjusting mechanism a108 extends out of the front end of the shell b 103; the adjusting mechanism b109 is arranged inside the shell a101 and the shell c104, the action end of the adjusting mechanism b109 is fixedly connected with the control end of the speed changing mechanism 107, and the front end control handle of the adjusting mechanism b109 extends out of the front end of the shell c 104.

In an alternative embodiment of the invention, the rod portion 2 comprises, apart from the same parts as the previous embodiment: the medial, cephalad and caudal joints; eight middle joints are provided; the bottom of the caudal joint is fixedly connected with the upper end of the shell a 101; each middle joint is connected end to end, and the middle joint at the lowest end is connected with the tail joint; the lower end of the head joint is connected with the upper end of the middle joint at the uppermost end.

In an alternative implementation manner of the embodiment of the present invention, except for the same components as those in the previous embodiment, the middle joint includes a housing d201, a housing e202, a synchronizing wheel a203, a connecting rod a204, a gear a205, an electromagnet a206, a gear b207, a gear c208, a connecting rod b209, a synchronizing wheel b210, a rotating shaft a211, a gear d212, a rotating shaft b213, a limiting component 214, a nut 215, an electromagnet b216, a gear e217, a gear f218, a gear g219, a lead screw 220, and an internal gear 223; the shell d201 is slidably mounted on the shell e 202; the synchronizing wheel a203 is fixedly arranged on the connecting rod a 204; the connecting rod a204 is fixedly arranged on the gear a 205; gear a205 is rotatably mounted on a positioning rod inside housing d 201; the electromagnet a206 is fixedly arranged inside the shell d 201; gear b207 is rotatably mounted on a circular shaft on electromagnet a 206; the gear c208 is fixedly arranged at the left end of the connecting rod b 209; the connecting rod b209 is rotatably arranged on a round hole in the shell d 201; a synchronizing wheel b210 is fixedly arranged at the right end of the connecting rod b 209; a synchronous belt connection is arranged on the synchronous wheel b210 and the synchronous wheel a 203; the upper end groove of the rotating shaft a211 is rotatably arranged in a round hole in the shell d 201; the gear d212 is fixedly arranged near the upper end of the rotating shaft a 211; gear d212 may mesh with gear b 207; gear b207 may mesh with gear a 205; the rotating shaft b213 is rotatably arranged inside the shell e202, and the rotating shaft b213 is connected with the rotating shaft a211 in a sliding way; the lower end of the limiting part 214 is movably connected in the groove at the lower end of the rotating shaft a211, and the upper end of the limiting part 214 is fixedly connected with one side of the nut 215; the nut 215 is rotatably arranged on the lead screw 220, and the nut 215 is in threaded fit with the lead screw 220; the electromagnet b216 is fixedly arranged inside the shell e 202; the gear e217 is fixedly arranged at the lower end of the screw rod 220; the gear f218 is fixedly arranged on the circular shaft of the electromagnet b 216; the gear g219 is fixedly arranged at the lower end of the rotating shaft b 213; the lead screw 220 is rotatably arranged inside the shell e 202; the internal gear 223 is mounted at the lower end of the housing e 202; the middle joints are connected end to end, the lower end of the shell e202 is rotatably arranged at the upper end of the shell d201 of the next joint, the gear c208 is meshed with the internal gear 223 of the previous joint, and the lower end branch of the rotating shaft b213 is in fit contact with the branch at the upper end of the rotating shaft a211 of the next joint.

In an optional implementation manner of the embodiment of the invention, except for the same parts as those in the previous embodiment, the caudal joint comprises a shell d201, a synchronizing wheel a203, a connecting rod a204, a gear a205, an electromagnet a206, a gear b207, a gear c208, a connecting rod b209, a synchronizing wheel b210, a rotating shaft a211, a gear d212, a limiting part 214, a nut 215, an electromagnet b216, a gear e217, a gear f218, a gear g219, a lead screw 220 and an internal gear 223 which are the same parts as those in the middle joint, and further comprises a shell f221 and a rotating shaft c 222; the shell f221 is slidably mounted in the shell d 201; the parts of the middle joint arranged in the shell e202 are arranged in the shell f221 in the same way; the parts of the middle joint on the rotating shaft b213 are arranged on the rotating shaft c222 in the same way; the outer shell d201 of the caudal joint is rotationally connected with the outer shell e202 of the middle joint at the lowest end; gear c208 meshes with internal gear 223; the lower end branch of the rotating shaft b213 is in fit contact with the branch of the upper end of the next joint rotating shaft a 211; the lower end of the rotating shaft a211 is fixedly connected with the upper end of the shell a 101; the lower end of the rotating shaft c222 is fixedly connected with the output shaft of the gear position mechanism 106 in the casing a 101.

In an optional implementation manner of the embodiment of the invention, besides the same parts as those in the previous embodiment, the head joint comprises a shell e202, a rotating shaft b213, a limiting part 214, a nut 215, an electromagnet b216, a gear e217, a gear f218, a gear g219, a screw 220, which are the same parts as those in the middle joint, and further comprises a shell g224, an electromagnet c225 and a rotating shaft d 226; the shell g224 is slidably mounted on the shell e 202; the parts of the middle joint arranged in the shell d201 are arranged in the shell g224 in the same way; the parts of the middle joint arranged on the rotating shaft a211 are arranged on the rotating shaft d226 in the same way; the electromagnet c225 is fixedly arranged on one side of the shell g 224; the shell e202 of the head joint is rotatably arranged at the upper end of the shell d201 at the uppermost end; the lower end branch of the rotating shaft b213 is in fit contact with the upper end branch of the rotating shaft a211 of the middle joint; the rotating shaft d226 is slidably mounted on the rotating shaft b 213.

In an alternative embodiment of the present embodiment, the scissors and power saw portion 3 comprises, in addition to the same components as in the previous embodiment: a power saw portion and a trimming portion; the electric saw part and the trimming part are fixedly arranged on the rod part 2; the electric saw portion includes: a housing h301, a rotating shaft e302, a bevel gear a303, a bevel gear b304, a chain gear 305, a guide part 306 and a chain saw bar 307; two rotating shafts e302 and two bevel gears a303 are respectively arranged; the shell h301 and the shell i313 can be screwed on the shell g 224; the rotating shaft e302 is rotatably arranged inside the shell h 301; the bevel gear a303 is fixedly arranged at the upper end of the rotating shaft e 302; the bevel gear b304 is rotatably arranged inside the shell h 301; bevel gear a303 meshes with bevel gear b 304; the chain gear 305 is fixedly arranged on the right side of the bevel gear b 304; the lower end of the guide part 306 is fixed in the shell h301, and the other end of the guide part 306 penetrates through a hole in the shell h301 and extends out of the shell h 301; the chain saw blade 307 is in rolling engagement with the groove on the guide element 306; the teeth of the inner circle of the chain saw blade 307 mesh with the chain gear 305.

In an alternative implementation of this embodiment of the invention, the trimming section comprises, in addition to the same parts as the previous embodiment: a fixed lever a308, a bevel gear c309, a fixed lever b310, a blade a311, a blade b312, and a housing i 313; the fixed rod a308 is fixedly arranged in the shell i 313; a bevel gear c309 is rotatably installed at the right end of the fixing rod a 308; the fixed rod b310 is rotatably installed inside the housing i 313; the blade a311 is fixedly arranged in the shell i313, and the upper end of the blade a extends out of a hole on the upper side of the shell i 313; the circular hole in the middle of the blade b312 is rotatably mounted on the fixed rod b310, the groove in the lower end of the blade b312 is slidably connected with the cylinder arranged at one end of the bevel gear c309, and the upper half part of the blade b312 extends out of the hole in the shell i 313.

The working principle is as follows:

when the head with the casing i313 is mounted on the bar portion 2, in the case of non-operation of the electric motor 105, the casing i313 is screwed inside the casing g 224; the round hole on the shell i313 is matched with the round hole on the shell g224, the electromagnet c225 works and is popped up to enable the shell g224 and the shell i313 to be clamped; while the lower end of the rotating shaft e302 is inserted into the hole of the rotating shaft d 226.

At this time, the motor 105 starts to work, and the motor 105 drives the speed change mechanism 107 to start to work; the gear shift mechanism 107 drives the gear shift mechanism 106 to work; the output shaft of the gear mechanism 106 drives the rotating shaft c222 of the tail joint to rotate; the rotating shaft c222 drives the rotating shaft a211 to rotate, and the rotating shaft a211 drives the rotating shaft b213 of the middle joint to rotate; the rotating shaft b213 drives the rotating shaft a211 of the middle joint to rotate; then the rotating shaft a211 and the rotating shaft b213 of the middle joint sequentially transmit the rotating force upwards; when the transmission is transmitted to the top, the rotating shaft a211 of the middle joint drives the rotating shaft b213 of the head joint to rotate; the rotating shaft b213 drives the rotating shaft d226 to rotate; the rotating shaft d226 drives the rotating shaft e302 in the shell i313 to rotate; the rotating shaft e302 drives the bevel gear a303 to rotate; bevel gear a303 drives bevel gear c309 to rotate; the bevel gear c309 drives the blade a311 to move; the full-automatic tree pruning machine has the advantages that the full-automatic tree pruning machine can be used for fully automatically shearing trees to be pruned, the cost and labor are saved, and the working efficiency is improved.

When the head with the casing h301 is mounted on the bar portion 2, with the motor 105 not operating, the casing h301 is screwed inside the casing g 224; the round hole on the shell h301 is matched with the round hole on the shell g 224; the electromagnet c225 works and pops up to lead the shell g224 and the shell h301 to be blocked; while the lower end of the rotating shaft e302 is inserted into the hole of the rotating shaft d 226.

At this time, the motor 105 starts to work, and the motor 105 drives the speed change mechanism 107 to start to work; the gear shift mechanism 107 drives the gear shift mechanism 106 to work; the output shaft of the gear mechanism 106 drives the rotating shaft c222 of the tail joint to rotate; the rotating shaft c222 drives the rotating shaft a211 to rotate, and the rotating shaft a211 drives the rotating shaft b213 of the middle joint to rotate; the rotating shaft b213 drives the rotating shaft a211 of the middle joint to rotate; then the rotating shaft a211 and the rotating shaft b213 of the middle joint sequentially transmit the rotating force upwards; when the transmission is transmitted to the top, the rotating shaft a211 of the middle joint drives the rotating shaft b213 of the head joint to rotate; the rotating shaft b213 drives the rotating shaft d226 to rotate; the rotating shaft d226 drives the rotating shaft e302 in the shell h301 to rotate; the rotating shaft e302 drives the bevel gear a303 to rotate; bevel gear a303 drives bevel gear b304 to rotate; bevel gear b304 drives chain gear 305 to rotate; the chain gear 305 drives the chain saw blade 307 to work; the full-automatic sawing machine has the advantages that full-automatic sawing operation can be performed on trees to be trimmed, cost and labor are saved, and working efficiency is improved.

When the length of the rod is insufficient in the tree pruning process, the length of the rod needs to be extended, the electromagnet b216 is controlled to work, the electromagnet b216 drives the gear f218, and the gear f218 is meshed with the gear g219 and the gear e 217; because the rotation shaft b213 is rotating at this time; the rotating shaft b213 drives the gear f218 to rotate; the gear f218 drives the gear e217 to rotate; the gear e217 drives the screw 220 to rotate; the screw 220 drives the nut 215 to move upwards; the nut 215 drives the limiting part 214 to move; the limiting part 214 drives the rotating shaft a211 to move upwards; the rotating shaft a211 drives the shell d201 to move upwards; meanwhile, the rotating shaft a211, the rotating shaft b213, the rotating shaft c222 and the rotating shaft d226 rotate all the time and are not affected; therefore, the extension operation of the automatic control rod of the machine is realized, and the problems that the branches needing to be trimmed and sawed are too high and the rod is not long enough are avoided; the working efficiency is improved.

When the tree is trimmed, the angle of the rod needs to be bent under the conditions that the position and the angle of branches and the angle of the rod need to be adjusted in some cases; controlling the electromagnet a206 to work; electromagnet a206 drives gear b207 to move downwards, so that gear b207 is meshed with gear a205 and gear d 212; when the machine works, the rotating shaft a211 rotates, and the rotating shaft a211 drives the gear d212 to rotate; the gear d212 drives the gear b207 to rotate; gear b207 rotates gear a 205; the connecting rod a204 drives the synchronizing wheel a203 to rotate through the connecting rod a 204; the synchronizing wheel a203 drives the synchronizing wheel b210 to rotate; the synchronous wheel b210 drives the gear c208 to rotate through the connecting rod b 209; the gear c208 drives the internal gear 223 of the upper joint to rotate; the inner gear 223 drives the outer shell e202 to rotate; while at the same time the joint is bent; the branches of the rotating shaft a211 and the rotating shaft b213 in each joint are not bent and are not contacted, and the contact is always kept to transmit the rotating force; thereby realized the full automatically regulated of the crooked of pole, avoided making the machine can not the problem of pruning to it because of the special position and the angle of branch, realized full automatization angle regulation, improved work efficiency.

When the angle and length are required to be reset, the adjusting mechanism a108 can be manually pulled; the adjusting mechanism a108 drives the gear mechanism 106 to rotate in the opposite direction; thereby realizing the bending and length resetting of the rod; the automatic tree pruning machine has the advantages that the automatic reset function of the machine is realized, the working efficiency is improved, and the machine can prune branches at different heights and different position angles.

When the working speed of the machine saw blade or the scissor head needs to be adjusted under special conditions, the adjusting mechanism b109 can be manually pulled; the adjusting mechanism b109 controls the speed changing mechanism 107 to increase the rotating speed of the output shaft of the speed changing mechanism 107, so that the working speed of the machine is automatically adjusted, and the working efficiency is improved.

Wholly realized the function of the pruning machine of knapsack formula, realized the full automatization, the bending and the resetting of automatically regulated pole, the length of extension pole and reset with can be to the operation of cutting and sawing of branch, can prune the branch of co-altitude not, different positions and different angles, very big improvement work efficiency, practice thrift the cost.

Claims

1. A backpack type trimmer is characterized by comprising a backpack part (1), a rod part (2), scissors and an electric saw part (3), wherein the backpack part (1) is a power transmission and control part; the tail end of the rod part (2) is fixedly arranged at the upper end of the backpack part (1) of the backpack 2, a power shaft of the rod part (2) is fixedly connected with an output shaft of the backpack part (1), and the backpack part (1) provides power for the rod part (2); the scissors and electric saw part (3) can be combined with the rod part (2) and arranged at the upper end of the rod part (2).

2. A backpack trimmer, characterized in that said backpack portion (1) comprises: the device comprises a shell a (101), a back belt (102), a shell b (103), a shell c (104), a motor (105), a gear mechanism (106), a speed change mechanism (107), an adjusting mechanism a (108) and an adjusting mechanism b (109); the number of the straps (102) is two, the straps (102) are made of elastic materials, and two ends of the straps (102) are fixedly connected to one side of the shell a (101); the rear end of the shell b (103) is fixedly arranged on the right side of the shell a (101); the rear end of the shell c (104) is fixedly arranged on the left side of the shell a (101); the motor (105) is fixedly arranged inside the shell a (101); the speed change mechanism (107) is arranged inside the shell a (101); an output shaft of a motor (105) of the motor (105) is connected with a power shaft of a speed change mechanism (107) through a synchronous belt arranged in a shell a (101); the gear mechanism (106) is arranged in the shell a (101), and a power shaft of the gear mechanism (106) is fixedly connected with an output shaft of the speed change mechanism (107); the adjusting mechanism a (108) is arranged in the shell a (101) and the shell b (103), the action end of the adjusting mechanism a (108) is fixedly connected with the control end of the gear mechanism (106), and the handle at the front end control end of the adjusting mechanism a (108) extends out of the front end of the shell b (103); the adjusting mechanism b (109) is arranged in the shell a (101) and the shell c (104), the action end of the adjusting mechanism b (109) is fixedly connected with the control end of the speed changing mechanism (107), and the front end of the adjusting mechanism b (109) controls the handle to extend out of the front end of the shell c (104).

3. A backpack trimmer according to claim 1 wherein said stem portion (2) comprises: the medial, cephalad and caudal joints; eight middle joints are provided; the bottom of the caudal joint is fixedly connected with the upper end of the shell a (101); each middle joint is connected end to end, and the middle joint at the lowest end is connected with the tail joint; the lower end of the head joint is connected with the upper end of the middle joint at the uppermost end.

4. The backpack trimmer of claim 2, wherein the middle joint comprises a housing d (201), a housing e (202), a synchronizing wheel a (203), a connecting rod a (204), a gear a (205), an electromagnet a (206), a gear b (207), a gear c (208), a connecting rod b (209), a synchronizing wheel b (210), a rotating shaft a (211), a gear d (212), a rotating shaft b (213), a limiting part (214), a nut (215), an electromagnet b (216), a gear e (217), a gear f (218), a gear g (219), a lead screw (220), and an internal gear (223); the shell d (201) is slidably mounted on the shell e (202); the synchronizing wheel a (203) is fixedly arranged on the connecting rod a (204); the connecting rod a (204) is fixedly arranged on the gear a (205); the gear a (205) is rotatably arranged on a positioning rod in the shell d (201); the electromagnet a (206) is fixedly arranged in the shell d (201); the gear b (207) is rotatably arranged on a circular shaft on the electromagnet a (206); the gear c (208) is fixedly arranged at the left end of the connecting rod b (209); the connecting rod b (209) is rotatably arranged on a round hole in the shell d (201); a synchronizing wheel b (210) is fixedly arranged at the right end of the connecting rod b (209); a synchronous belt connection is arranged on the synchronous wheel b (210) and the synchronous wheel a (203); the upper end groove of the rotating shaft a (211) is rotatably arranged in a round hole in the shell d (201); the gear d (212) is fixedly arranged at the upper end of the rotating shaft a (211); gear d (212) can be meshed with gear b (207); gear b (207) may mesh with gear a (205); the rotating shaft b (213) is rotatably arranged inside the shell e (202), and the rotating shaft b (213) is connected with the rotating shaft a (211) in a sliding way; the lower end of the limiting part (214) is movably connected in a groove at the lower end of the rotating shaft a (211), and the upper end of the limiting part (214) is fixedly connected with one side of the nut (215); the nut (215) is rotatably arranged on the lead screw (220), and the nut (215) is in threaded fit with the lead screw (220); the electromagnet b (216) is fixedly arranged in the shell e (202); the gear e (217) is fixedly arranged at the lower end of the screw rod (220); the gear f (218) is fixedly arranged on the circular shaft of the electromagnet b (216); the gear g (219) is fixedly arranged at the lower end of the rotating shaft b (213); the lead screw (220) is rotatably arranged in the shell e (202); an internal gear (223) is mounted at the lower end of the housing e (202); the middle joints are connected end to end, the lower end of a shell e (202) is rotatably arranged at the upper end of a shell d (201) of the next joint, a gear c (208) is meshed with an internal gear (223) of the previous joint, and the lower end fork of a rotating shaft b (213) is in fit contact with the fork at the upper end of a rotating shaft a (211) of the next joint.

5. The backpack trimmer of claim 2, wherein the tail joint comprises a housing d (201), a synchronizing wheel a (203), a connecting rod a (204), a gear a (205), an electromagnet a (206), a gear b (207), a gear c (208), a connecting rod b (209), a synchronizing wheel b (210), a rotating shaft a (211), a gear d (212), a limiting part (214), a nut (215), an electromagnet b (216), a gear e (217), a gear f (218), a gear g (219), a lead screw (220) and an internal gear (223) which are the same as those of the middle joint, and further comprises a housing f (221) and a rotating shaft c (222); the shell f (221) is slidably arranged in the shell d (201); the parts of the middle joint arranged in the shell e (202) are arranged in the shell f (221) in the same way; the parts of the middle joint arranged on the rotating shaft b (213) are arranged on the rotating shaft c (222) in the same way; the outer shell d (201) of the caudal joint is rotationally connected with the outer shell e (202) of the middle joint at the lowest end; the gear c (208) is meshed with the internal gear (223); the lower end branch of the rotating shaft b (213) is in fit contact with the branch of the upper end of the next joint rotating shaft a (211); the lower end of the rotating shaft a (211) is fixedly connected with the upper end of the shell a (101); the lower end of the rotating shaft c (222) is fixedly connected with an output shaft of a gear mechanism (106) in the shell a (101).

6. The backpack trimmer of claim 2, wherein the head joint comprises a housing e (202), a rotating shaft b (213), a limiting part (214), a nut (215), an electromagnet b (216), a gear e (217), a gear f (218), a gear g (219), a lead screw (220) which are the same as the middle joint, and further comprises a housing g (224), an electromagnet c (225) and a rotating shaft d (226); the shell g (224) is slidably mounted on the shell e (202); the parts of the middle joint arranged in the shell d (201) are arranged in the shell g (224) in the same way; the parts of the middle joint arranged on the rotating shaft a (211) are arranged on the rotating shaft d (226) in the same way; the electromagnet c (225) is fixedly arranged on one side of the shell g (224); the shell e (202) of the head joint is rotatably arranged at the upper end of the shell d (201) at the uppermost end; the lower end branch of the rotating shaft b (213) is in fit contact with the branch of the upper end of the rotating shaft a (211) of the middle joint; the rotating shaft d (226) is slidably mounted on the rotating shaft b (213).

7. A backpack trimmer according to claim 1, wherein said scissors and power saw portion (3) comprises: a power saw portion and a trimming portion; the electric saw part and the trimming part are fixedly arranged on the rod part (2); the electric saw portion includes: a housing h (301), a rotating shaft e (302), a bevel gear a (303), a bevel gear b (304), a chain gear (305), a guide part (306) and a chain saw bar (307); two rotating shafts e (302) and two bevel gears a (303) are arranged respectively; the shell h (301) and the shell i (313) can be screwed on the shell g (224); the rotating shaft e (302) is rotatably arranged in the shell h (301); the bevel gear a (303) is fixedly arranged at the upper end of the rotating shaft e (302); the bevel gear b (304) is rotatably arranged inside the shell h (301); bevel gear a (303) is meshed with bevel gear b (304); the chain gear (305) is fixedly arranged on the right side of the bevel gear b (304); the lower end of the guide part (306) is fixed in the shell h (301), and the other end of the guide part (306) penetrates through a hole in the shell h (301) and extends out of the shell h (301); the chain saw blade (307) is in rolling fit with the groove on the guide part (306); the teeth of the inner ring of the chain saw blade (307) are engaged with the chain gear (305).

8. The backpack trimmer of claim 6, wherein the trimming section comprises: a fixing lever a (308), a bevel gear c (309), a fixing lever b (310), a blade a (311), a blade b (312), and a housing i (313); the fixed rod a (308) is fixedly arranged in the shell i (313); a bevel gear c (309) is rotatably installed at the right end of the fixed rod a (308); the fixed rod b (310) is rotatably arranged in the shell i (313); the blade a (311) is fixedly arranged in the shell i (313), and the upper end of the blade a extends out of a hole on the upper side of the shell i (313); the round hole in the middle of the blade b (312) is rotatably arranged on the fixed rod b (310), the groove in the lower end of the blade b (312) is in sliding connection with the cylinder arranged at one end of the bevel gear c (309), and the upper half part of the blade b (312) extends out of the hole in the shell i (313).