CN107404086B - Electric rope tying device - Google Patents
Electric rope tying device Download PDFInfo
- Publication number
- CN107404086B CN107404086B CN201710736909.7A CN201710736909A CN107404086B CN 107404086 B CN107404086 B CN 107404086B CN 201710736909 A CN201710736909 A CN 201710736909A CN 107404086 B CN107404086 B CN 107404086B
- Authority
- CN
- China
- Prior art keywords
- rotating arm
- rope
- driving device
- directional
- retaining ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The invention relates to the field of power line maintenance equipment, in particular to an electric rope tying device, which comprises a first rotating arm, a second rotating arm, a rotating arm shaft, a direction rope clamping device, a retaining ring, a direction rope, a power supply and a driving device, wherein the first rotating arm is connected with the first rotating arm; the power supply is connected with the driving device; the first rotating arm and the second rotating arm are respectively connected with a rotating arm shaft, and the driving device drives the first rotating arm and the second rotating arm to rotate around the rotating arm shafts in opposite directions; the tail end of the first rotating arm is provided with a directional rope clamp, the tail end of the second rotating arm is provided with a retaining ring, one end of the directional rope is a hardened rope portion, the directional rope clamp clamps the hardened rope portion, and the other end of the rope is tied on the retaining ring. The invention replaces operators to complete the tree bamboo obstacle clearing work, reduces the operation risk, is simple and easy to operate, improves the working efficiency and saves the labor force.
Description
Technical Field
The invention relates to the field of circuit maintenance equipment, in particular to an electric rope tying device.
Background
The high-voltage transmission line corridor is located in a field mountain forest wood area, wherein the distance between a 110kV transmission line and the ground is low, and tree bamboos on two sides and at the bottom of the line grow too fast to bring potential safety hazards to line operation. The electric power operation and maintenance department need to perform a great number of obstacle clearing works such as tree pruning and felling every year, and in order to ensure that the lodging direction of the tree (branch) is controlled in the tree pruning and felling works, the direction ropes need to be bound at the front ends of the pruned and felled tree (branch). In particular, in the operation of trimming tall trees, the binding position can be reached only through climbing of operators due to higher binding points and limited ladder height. The tree obstacle clearing work of the transmission line channel has a certain risk and low efficiency. In the obstacle clearance process, because the binding points are higher and the height of the ladder is limited, the binding positions can be reached only through climbing of operators, and the front end upper binding points of the pruned branches cannot bear the weight of a human body under most conditions, so that the operators cannot fix the body easily, and the possibility of being attacked by snakes and bees on trees is also possible. The operation risk is high. The manual rope tying is low in tree obstacle clearing work efficiency, low in speed and high in labor force, and potential safety hazards of the power transmission line cannot be safely and efficiently eliminated.
Disclosure of Invention
The invention aims to overcome at least one defect in the prior art, and provides the electric rope tying device which replaces operators to finish the tree bamboo obstacle clearing work, so that the operation risk is reduced, the operation is simple and easy, the working efficiency is improved, and the labor force is saved.
In order to solve the technical problems, the invention adopts the following technical scheme: an electric rope tying device comprises a first rotating arm, a second rotating arm, a rotating arm shaft, a directional rope clamping ring, a directional rope, a power supply and a driving device;
the power supply is connected with the driving device; the first rotating arm and the second rotating arm are respectively connected with a rotating arm shaft, and the driving device drives the first rotating arm and the second rotating arm to rotate around the rotating arm shafts in opposite directions; the tail end of the first rotating arm is provided with a directional rope clamp, the tail end of the second rotating arm is provided with a retaining ring, one end of the directional rope is a hardened rope portion, the directional rope clamp clamps the hardened rope portion, and the other end of the rope is tied on the retaining ring. The rotating arms are driven by the driving device, so that the two rotating arms rotate to the minimum opening position, the hardened rope portion pushes the retaining ring open into the retaining ring, the tail end of the directional rope is tightened, the directional rope overcomes the clamping force of the spring and is separated from the clamping spring, the retaining ring is also separated from the retaining ring support, the directional rope is pulled tightly, and the electric rope tying device is retracted, so that the work of tying the directional rope is completed.
Further, an electronic tether still includes box, circuit control board, and power, drive arrangement, circuit control board set up in the box, and control circuit board is connected with power, drive arrangement, and the box can play the effect of protection support for power, drive arrangement, circuit control board, and the circuit control board is used for controlling drive arrangement's operation.
Further, the driving device comprises a motor, a transmission screw, a transmission nut sleeve, a first connecting rod and a second connecting rod, wherein the motor is connected with the transmission screw through a coupling, the transmission screw is in threaded connection with the transmission nut sleeve, one end of the first connecting rod and one end of the second connecting rod are respectively hinged with one end of the transmission nut sleeve, and the other ends of the first connecting rod and the second connecting rod are respectively hinged with the first rotating arm and the second rotating arm; the motor shaft rotates to drive the transmission screw to rotate, and the transmission screw is in threaded transmission with the nut of the transmission nut sleeve to make the transmission screw perform linear motion, and the connecting rod hinged with the transmission nut sleeve and the rotating arm hinged with the connecting rod rotate around the rotating arm shaft. When the motor drives the transmission screw in the forward direction, the transmission nut sleeve moves forwards, the first rotating arm and the second rotating arm simultaneously move in opposite directions and rotate inwards, so that the retaining ring is contacted with the directional rope, and the hardened rope part of the directional rope is buckled into the retaining ring; when the motor drives the transmission screw in the reverse direction, the first rotating arm and the second rotating arm simultaneously move in opposite directions to rotate outwards, and the retaining ring and the directional rope are separated from each other by overcoming the action of the clamping force of the spring.
Further, the box body still be equipped with the motor cabinet, be equipped with the mounting hole on the motor cabinet, the motor passes through the mounting hole to be fixed on the motor cabinet.
Furthermore, the mounting holes are designed into mutually vertical waist-shaped long holes, can be used for adjusting the transmission position of the motor, and are beneficial to changing the positions of the motor under different working demands.
Further, the driving device also comprises a travel stop block and a limit switch, wherein the travel stop block is arranged at the end part of the transmission nut sleeve, the limit switch controls the motor, when the driving device drives the two rotating arms to the minimum opening position, the travel stop block is contacted with the limit switch, the travel limit is utilized to control the rotating angle of the rotating arms, and the requirement of the operating rod for realizing the rope tying is met.
Further, the electric tether further comprises an operating rod, a control button is arranged on the operating rod, the operating rod is connected with the box body and used for controlling the driving system, the operating rod is an insulating rod, the electric shock of a user can be prevented by additionally arranging the operating rod, and when the tree is far away from an operator, the operating rod can be used for facilitating work.
Furthermore, the retaining ring is a square ring, a spring movable opening is arranged on the ring, and after the hardened rope portion enters the retaining ring, the opening can be automatically reset to close the opening through the spring.
Further, an electronic tether still includes the buckle and supports, the buckle support include second mount pad, second fixing base, second spring leaf, the second fixing base sets up on the second mount pad, the second mount pad passes through threaded connection and installs at the second rocking arm end, second spring leaf symmetry sets up at the second fixing base is four-terminal, the second spring leaf passes through elasticity with buckle chucking, second spring leaf and buckle active position indent, can more firm fixed buckle, select the moderate material of clamping force, make things convenient for the business turn over of buckle.
Further, the direction rope clamp include first mount pad, first fixing base, first spring leaf, first fixing base sets up on first mount pad, the second spring leaf is axisymmetric setting and first fixing base both ends, first mount pad passes through threaded connection and installs at first rotating arm end, the hardening rope portion clamp of direction rope is in first spring leaf, first spring leaf selects the moderate material of clamping force, makes things convenient for the direction rope to pass in and out smoothly.
Further, a Dinima rope is selected as a directional rope, one end of the directional rope is tied with a metal buckle, a metal sheet is wrapped outside the position 350mm away from the buckle to form a hardened rope portion 40mm, the buckle is placed in a buckle support on a rotating arm during operation, and the hardened rope portion is placed in a reed clamped by the directional rope on the other rotating arm. The 350mm rope between the buckle and the hardened rope segment is in a free state.
Compared with the prior art, the beneficial effects are that:
1. the device can replace operators to climb to complete the tree bamboo obstacle clearing work, so that the operation risk is reduced;
2. the operation is simple and easy, and the working efficiency is improved;
3. compared with the prior art, the invention does not need operators to climb trees, thereby saving labor force;
4. the motor position can be adjusted according to actual conditions, and applicability is strong.
Drawings
FIG. 1 is a top view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall block diagram of the present invention, taken from FIGS. 1 A-A;
FIG. 3 is an enlarged view of a portion of FIG. 2B of the overall structure of the present invention;
FIG. 4 is a front view of a buckle support in the overall construction of the present invention;
FIG. 5 is a left side view of the clasp bearing in the overall construction of the invention;
FIG. 6 is a top view of a buckle support in the overall structure of the present invention;
FIG. 7 is a front view of a directional rope clamp in the overall structure of the present invention;
fig. 8 is a top view of a directional rope clamp in the overall structure of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
As shown in fig. 1 and 2, the electric rope tying device comprises a first rotating arm 4, a second rotating arm 9, a rotating arm shaft 16, a directional rope 6 clamp 5, a buckle 7, a directional rope 6, a power supply and a driving device;
the power supply is connected with the driving device; the first rotating arm 4 and the second rotating arm 9 are respectively connected with a rotating arm shaft 16, and the driving device drives the first rotating arm 4 and the second rotating arm 9 to rotate around the rotating arm shafts 16 in opposite directions; the tail end of the first rotating arm 4 is provided with a directional rope clamping 5, the tail end of the second rotating arm 9 is provided with a retaining ring 7, one end of the directional rope 6 is a hardened rope portion, the directional rope clamping 5 clamps the hardened rope portion, and the other end of the rope is tied on the retaining ring 7. The rotating arms are driven by the driving device, so that the two rotating arms rotate to the minimum opening position, the hardened rope portion pushes the retaining ring 7 open into the retaining ring 7, the tail end of the directional rope 6 is tightened, the directional rope 6 breaks away from the directional rope clamping 5 against the force of the spring, the retaining ring 7 also breaks away from the retaining ring support 8, the directional rope 6 is tightened, and the electric rope tying device is retracted, so that the work of tying the directional rope 6 is completed.
Further, an electric rope tying device further comprises a box 11 and a circuit control board, wherein the power supply, the driving device and the circuit control board are arranged in the box 11, the control circuit board is connected with the power supply and the driving device, the box 11 can play a role in protecting and supporting the power supply, the driving device and the circuit control board, and the circuit control board is used for controlling the operation of the driving device.
Further, the driving device comprises a motor 12, a driving screw 17, a driving nut sleeve 2, a first connecting rod 3 and a second connecting rod 10, wherein the motor 12 is connected with the driving screw 17 through a coupling, the driving screw 17 is in threaded connection with the driving nut sleeve 2, one ends of the first connecting rod 3 and the second connecting rod 10 are respectively hinged with one end of the driving nut sleeve 2, and the other ends of the first connecting rod 3 and the second connecting rod 10 are respectively hinged with the first rotating arm 4 and the second rotating arm 9; the rotation of the motor 12 shaft drives the transmission screw 17 to rotate, the transmission screw is in threaded transmission with the nut of the transmission nut sleeve 2, so that the transmission screw is in linear motion, and a connecting rod hinged with the transmission nut sleeve 2 and a rotating arm hinged with the connecting rod rotate around the rotating arm shaft 16. When the motor 12 drives the transmission screw 17 forward to enable the transmission nut sleeve 2 to move forward, the first rotating arm 4 and the second rotating arm 9 simultaneously move oppositely and rotate inwards to enable the retaining ring 7 to touch the directional rope 6, and the hardened rope part of the directional rope 6 is buckled in the retaining ring 7; when the motor 12 drives the transmission screw 17 reversely, the first rotating arm 4 and the second rotating arm 9 simultaneously move oppositely to rotate outwards, and the retaining ring 7 and the direction rope 6 are separated against the action of the clamping force of the spring.
Further, the case 11 is further provided with a motor base 13, the motor base 13 is provided with a mounting hole, and the motor 12 is fixed on the motor base 13 through the mounting hole.
Furthermore, the mounting holes are designed as vertical waist-shaped long holes, which can be used for adjusting the transmission position of the motor 12, thereby being beneficial to changing the position of the motor 12 under different working demands.
Further, as shown in fig. 3, the driving device further includes a travel stop 15 and a limit switch 14, the travel stop 15 is disposed at the end of the transmission nut sleeve 2, the limit switch 14 controls the motor 12, when the driving device drives the two rotating arms to the minimum opening position, the travel stop 15 touches the limit switch 14, and the travel limit is used to control the rotation angle of the rotating arms, so as to meet the requirement of the operating lever 1 for realizing the tether of the directional rope 6.
Further, an electric rope further comprises an operating rod 1, a control button is arranged on the operating rod 1, the operating rod 1 is connected with the box 11 and used for controlling a driving system, the operating rod 1 is an insulating rod, the operating rod 1 is additionally arranged to prevent a user from electric shock, and when a tree is far away from an operator, the operating rod 1 can be used for facilitating work.
Further, the retaining ring 7 is a square ring, a spring movable opening is arranged on the ring, and after the hardened rope portion enters the retaining ring 7, the opening can be automatically reset to close the opening through the spring.
Further, as shown in fig. 4, 5 and 6, an electric rope tying device further comprises a buckle supporting 8, the buckle supporting 8 comprises a second mounting seat 83, a second fixing seat 82 and a second spring piece 81, the second fixing seat 82 is arranged on the second mounting seat 83, the second mounting seat 83 is installed at the tail end of the second rotating arm 9 through threaded connection, the second spring piece 81 is symmetrically arranged at the four ends of the second fixing seat 82, the second spring piece 81 tightly clamps the buckle 7 through elastic force, the acting positions of the second spring piece 81 and the buckle 7 are inwards concave, the buckle 7 can be firmly fixed, the direction rope clamps 5 are made of materials with moderate selection force, and the buckle 7 can be conveniently moved in and out.
Further, as shown in fig. 7 and 8, the direction rope 6 clamping 5 includes a first mounting seat 53, a first fixing seat 52 and a first spring piece 51, the first fixing seat 52 is disposed on the first mounting seat 53, the second spring piece 81 is axisymmetrically disposed at two ends of the first fixing seat 52, the first mounting seat 53 is mounted at the tail end of the first rotating arm 4 through threaded connection, a hardened rope portion of the direction rope 6 is clamped in the first spring piece 51, and the first spring piece 51 selects a material with moderate force for the direction rope clamping 5, so that the direction rope 6 can conveniently and smoothly enter and exit.
Further, a Dinima rope is selected as a directional rope 6, a metal retaining ring 7 is tied at one end of the directional rope 6, a metal sheet is wrapped outside a 350mm position of the retaining ring 7 to form a hardened rope portion of 40mm, the retaining ring 7 is placed in a retaining ring 7 support on a rotating arm in operation, and the hardened rope portion is placed in a reed of a directional rope clamping 5 on another rotating arm. The 350mm rope between the clasp 7 and the hardened rope section is in a free state.
When the operating rod 1 is tied with the direction rope 6 on the branch, the two rotating arms are positioned at the maximum opening position, and the travel stop is contacted with the travel switch at the right end in the figure, namely the initial position. The operating rod 1 is moved to enable branches to enter the space of the two rotating arms, the power supply is started to rotate the motor 12, the two rotating arms rotate in opposite directions simultaneously, the hardening rope portion on one rotating arm pushes up the retaining ring 7 on the other rotating arm to movably buckle into the retaining ring 7, the two rotating arms are located at the minimum opening position, the travel stop is contacted with the travel switch at the left end in the figure, the motor 12 automatically stops rotating, an operator pulls and tightens the tail end of the direction rope 6, at the moment, the direction rope 6 overcomes the clamping force of the spring and breaks away from the spring of the direction rope clamping 5, the retaining ring 7 breaks away from the retaining ring support 7, the direction rope 6 is tensioned, the operating rod 1 is retracted, and the work of tying the direction rope 6 on the branches is completed.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (9)
1. An electric rope tying device is characterized by comprising a first rotating arm (4), a second rotating arm (9), a rotating arm shaft (16), a directional rope clamping device (5), a retaining ring (7), a directional rope (6), a power supply and a driving device;
the power supply is connected with the driving device; the first rotating arm (4) and the second rotating arm (9) are respectively connected with a rotating arm shaft (16), and the driving device drives the first rotating arm (4) and the second rotating arm (9) to rotate around the rotating arm shafts (16) in opposite directions; the tail end of the first rotating arm (4) is provided with a directional rope clamp (5), the tail end of the second rotating arm (9) is provided with a retaining ring (7), one end of the directional rope (6) is a hardened rope part, the directional rope clamp (5) clamps the hardened rope part, and the other end of the rope is tied on the retaining ring (7);
an electronic tether still include buckle support (8), buckle support (8) include second mount pad (83), second fixing base (82), second spring leaf (81), second fixing base (82) set up on second mount pad (83), second mount pad (83) are installed at second rocking arm (9) end through threaded connection, second spring leaf (81) symmetry sets up at second fixing base (82) four ends, second spring leaf (81) are through elasticity with buckle (7) chucking.
2. The electric rope tying device according to claim 1, further comprising a box body (11), a circuit control board, a power supply, a driving device and a circuit control board are arranged in the box body (11), and the control circuit board is connected with the power supply and the driving device.
3. The electric rope tying device according to claim 2, wherein the driving device comprises a motor (12), a transmission screw (17), a transmission nut sleeve (2), a first connecting rod (3) and a second connecting rod (10), the motor (12) is connected with the transmission screw (17) through a coupling, the transmission screw (17) is in threaded connection with the transmission nut sleeve (2), one end of the first connecting rod (3) and one end of the second connecting rod (10) are respectively hinged with one end of the transmission nut sleeve (2), and the other end of the first connecting rod (3) and the other end of the second connecting rod (10) are respectively hinged with the first rotating arm (4) and the second rotating arm (9).
4. An electric rope tying device according to claim 3, characterized in that the box body (11) is further provided with a motor base (13), the motor base (13) is provided with a mounting hole, and the motor (12) is fixed on the motor base (13) through the mounting hole.
5. The electric tether of claim 4 wherein said mounting holes are configured as elongated slots perpendicular to each other.
6. An electric rope tying device according to claim 3, characterized in that the driving device further comprises a travel stop (15) and a limit switch (14), the travel stop (15) is arranged at the end of the transmission nut sleeve (2), the limit switch (14) controls the motor (12), and when the driving device drives the two rotating arms to the minimum opening position, the travel stop (15) is contacted with the limit switch (14).
7. The electric rope tying device according to claim 1, further comprising an operation lever (1), wherein a control button is provided on the operation lever (1) for controlling the driving means, and the operation lever (1) is connected with the housing (11).
8. An electric rope tying device according to claim 1, characterized in that the retaining ring (7) is a square ring, and the ring is provided with a spring movable opening.
9. An electric rope tying device according to any one of claims 1-8, characterized in that the direction rope clamping (5) comprises a first mounting seat (53), a first fixing seat (52) and a first spring piece (51), the first fixing seat (52) is arranged on the first mounting seat (53), the first spring piece (51) is axisymmetrically arranged at two ends of the first fixing seat (52), the first mounting seat (53) is installed at the tail end of the first rotating arm (4) through threaded connection, and the hardened rope portion of the direction rope (6) is clamped in the first spring piece (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736909.7A CN107404086B (en) | 2017-08-24 | 2017-08-24 | Electric rope tying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736909.7A CN107404086B (en) | 2017-08-24 | 2017-08-24 | Electric rope tying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107404086A CN107404086A (en) | 2017-11-28 |
| CN107404086B true CN107404086B (en) | 2023-04-28 |
Family
ID=60398211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710736909.7A Active CN107404086B (en) | 2017-08-24 | 2017-08-24 | Electric rope tying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107404086B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1665963A1 (en) * | 1989-03-06 | 1991-07-30 | Центральный Научно-Исследовательский И Проектно-Конструкторский Институт Механизации И Энергетики Лесной Промышленности | Device for retaining timber on a slope |
| JP3598420B2 (en) * | 1995-07-18 | 2004-12-08 | 有限会社下村組 | Guide rope installation tool |
| US5636413A (en) * | 1995-12-19 | 1997-06-10 | Berg; Daniel T. | Diver's quick release tether line clip |
| JP4757236B2 (en) * | 2007-06-20 | 2011-08-24 | 九州電力株式会社 | Rope fitting |
| JP6168278B2 (en) * | 2013-01-10 | 2017-07-26 | 株式会社システック | Rope mounting tool for guiding column collapse |
| DE202013003533U1 (en) * | 2013-04-10 | 2013-04-23 | Grube KG Forstgerätestelle | Cable system in the form of a choker rope |
| JP5886373B2 (en) * | 2014-07-01 | 2016-03-16 | 中国電力株式会社 | Attaching tow hook to fallen tree |
| CN106549333B (en) * | 2016-12-07 | 2018-06-29 | 西南大学 | Coiling tethered unit of climbing tree is exempted from a kind of transmission line of electricity screen of trees felling |
| CN106786169B (en) * | 2017-02-17 | 2018-06-29 | 西南大学 | Transmission line of electricity chops at a tree auxiliary device, system and its control method |
| CN207098449U (en) * | 2017-08-24 | 2018-03-13 | 广东电网有限责任公司阳江供电局 | A kind of electronic tether device |
-
2017
- 2017-08-24 CN CN201710736909.7A patent/CN107404086B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107404086A (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105979768B (en) | The equipment of branch is taken off for live standing tree | |
| CN105165431B (en) | A kind of multi-functional pruner for tree | |
| JP2014502507A (en) | Standing tree processing method and apparatus | |
| CN209376268U (en) | A kind of screen of trees cleaning plant of three saws collaboration | |
| US20230016831A1 (en) | Self-aligning pruning device | |
| CN105103794A (en) | Orchard picking hand with arm of force adjustable | |
| CN104396586A (en) | Safe clamp-type tree branch trimmer | |
| CN107404086B (en) | Electric rope tying device | |
| CN205454773U (en) | Fruit tree pruning machine | |
| CN109362386A (en) | A kind of the screen of trees cleaning plant and control method of the collaboration of three saws | |
| EP2998461A1 (en) | Fence arrangement, and method for operating said fence arrangement | |
| CN112262676B (en) | Tree climbing machine and tree climbing pruning method | |
| CN107492831B (en) | Manual rope tying device | |
| CN204948860U (en) | A trimming means for power line | |
| JP5425999B1 (en) | Tools and working bars | |
| CN207098449U (en) | A kind of electronic tether device | |
| CN104221736A (en) | Long pole chain saw | |
| DE3904965A1 (en) | Motor-operated pruning saw | |
| CN103098655A (en) | Vehicle-mounted big tree clipping clamping device | |
| CN105993636A (en) | Remote control pruning device | |
| CN108551863A (en) | A kind of cable-styled fruit picking apparatus of set | |
| CN111386883B (en) | Electric power overhauls with high altitude cutting device convenient to control | |
| CN208797468U (en) | A kind of obstacle removing robot | |
| CN210987172U (en) | Insulating saw | |
| CN210869114U (en) | Auxiliary tool for cutting trees |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |