CN107879293B - Mechanical telescopic arm for electric power overhead operation - Google Patents
Mechanical telescopic arm for electric power overhead operation Download PDFInfo
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- CN107879293B CN107879293B CN201711107840.8A CN201711107840A CN107879293B CN 107879293 B CN107879293 B CN 107879293B CN 201711107840 A CN201711107840 A CN 201711107840A CN 107879293 B CN107879293 B CN 107879293B
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- rod
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/09—Other lifting devices
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a mechanical telescopic arm for electric power aloft work, which comprises: the bottom telescopic seat comprises a bearing plate, a first support frame arranged on the bearing plate through a support column, a bottom telescopic rod with one end hinged on the first support frame, and a second support frame hinged with the other end of the bottom telescopic rod; at least one middle telescopic seat hinged to the second support frame; the top telescopic seat is hinged on at least one middle telescopic seat; the bottom telescopic seat further comprises a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting column, and a piston rod at the other end of the hydraulic oil cylinder is hinged to the telescopic rod so as to drive the bottom telescopic rod to be folded through the hydraulic oil cylinder. Through the mode, the mechanical telescopic arm for electric power aloft work disclosed by the invention can be folded, so that the occupied space is small when the mechanical telescopic arm is in a non-working state, and the mechanical telescopic arm is greatly convenient to transport.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a mechanical telescopic arm for power aerial work.
Background
With the development of economy and society, the requirements of people on power supply are continuously improved, and accordingly, the requirements of live working are increased, various insulating aerial work platforms are generated, and the insulating aerial work platforms are widely applied.
In general, in order to facilitate the operation of an operator at high altitudes, the operator is transported to the high altitude by a telescopic robot to perform the operation. However, the telescopic arm of the telescopic robot on the market at present has a large volume, and the telescopic arm of the telescopic robot occupies a large space in a non-working state, which is inconvenient to transport.
Disclosure of Invention
The invention mainly solves the technical problem of providing the mechanical telescopic arm for electric power high-altitude operation, which occupies small space in a non-working state and is greatly convenient to transport.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a mechanical telescopic arm for electric power overhead operation, comprising: the bottom telescopic seat comprises a bearing plate, a first support frame arranged on the bearing plate through a support column, a bottom telescopic rod with one end hinged on the first support frame, and a second support frame with the other end of the bottom telescopic rod; at least one middle telescopic seat hinged to the second support frame; the top telescopic seat is hinged on at least one middle telescopic seat; the bottom telescopic seat further comprises a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting column, and a piston rod of the other end of the hydraulic oil cylinder is hinged to the bottom telescopic rod so as to drive the bottom telescopic rod to be folded through the hydraulic oil cylinder.
The first support frame is rectangular, the support column comprises a first support column arranged at a first corner of the first support frame, a second support column arranged at a second corner of the first support frame, a third support column arranged at a third corner of the first support frame and a fourth support column arranged at a fourth corner of the first support frame, the hydraulic cylinder comprises a first hydraulic cylinder and a second hydraulic cylinder, one end of the first hydraulic cylinder is hinged to the first support column, and one end of the second hydraulic cylinder is hinged to the third support column.
The bottom telescopic rod comprises a first telescopic rod, a second telescopic rod, a third telescopic rod and a fourth telescopic rod, wherein one end of the first telescopic rod is hinged to the first corner of the first support frame, one end of the second telescopic rod is hinged to the second corner of the first support frame, one end of the third telescopic rod is hinged to the third corner of the first support frame, one end of the fourth telescopic rod is hinged to the fourth corner of the first support frame, a piston rod at the other end of the first hydraulic oil cylinder is hinged to the second telescopic rod, and a piston rod at the other end of the second hydraulic oil cylinder is hinged to the fourth telescopic rod.
Wherein, the second support frame is the rectangle form setting, and the other end of first telescopic link articulates the setting on the first bight of second support frame, and the other end of second telescopic link articulates the setting on the second bight of second support frame, and the other end of third telescopic link articulates the setting on the third bight of second support frame, and the other end of fourth telescopic link articulates the setting on the fourth bight of second support frame.
Wherein, first telescopic link includes that one end articulates the first bottom dwang that sets up at the first bight of second support frame and one end articulates the second bottom dwang that sets up at the first bight of first support frame, and the second bottom dwang other end articulates the setting on the other end of first bottom dwang, wherein the second telescopic link includes that one end articulates the third bottom dwang that sets up at the second bight of second support frame and one end articulates the fourth bottom dwang that sets up at the second bight of first support frame, and the fourth bottom dwang other end articulates the setting on the other end of third bottom dwang, wherein the third telescopic link includes that one end articulates the fifth bottom dwang that sets up at the third bight of second support frame and one end articulates the setting on the other end of the sixth bottom dwang of the third bight of first support frame, and the sixth bottom dwang other end articulates the setting on the other end of fifth bottom dwang, wherein the fourth telescopic link includes that one end articulates the setting on the seventh bottom dwang of the fourth bight of second support frame and one end of articulated setting at the first support frame, and the eighth bottom of eighth bottom dwang of the eighth support frame is set up on the other end of the eighth bottom of the eighth support frame.
The first corner of the second support frame is far away from the first side of the second corner, a first bottom rotating shaft and a first connecting rotating shaft are arranged at intervals, one end of the first bottom rotating shaft is fixedly connected with one end of a first bottom rotating rod, a first driving gear is arranged at the other end of the first bottom rotating shaft, a first driven gear connected with the first driving gear is arranged on the first connecting rotating shaft, a second bottom rotating shaft is arranged at the first side of the first corner of the first support frame far away from the second corner, one end of the second bottom rotating shaft is fixedly connected with one end of the second bottom rotating rod, and therefore the first bottom rotating rod and the second bottom rotating rod are folded in the plane direction where the first side of the second support frame is located;
a third bottom rotating shaft and a second connecting rotating shaft are arranged at intervals on the second side edge, far away from the third corner, of the second support frame, one end of the third bottom rotating shaft is fixedly connected with one end of a third bottom rotating rod, a second driving gear is arranged at the other end of the third bottom rotating shaft, a second driven gear connected with the second driving gear is arranged on the second connecting rotating shaft, a fourth bottom rotating shaft is arranged on the second side edge, far away from the third corner, of the second corner of the first support frame, one end of the fourth bottom rotating shaft is fixedly connected with one end of the fourth bottom rotating rod, and therefore the third bottom rotating rod and the fourth bottom rotating rod are folded in the plane direction of the second side edge of the second support frame;
A fifth bottom rotating shaft and a third connecting rotating shaft are arranged at intervals on a third side edge, far away from the fourth corner, of the third corner of the second support frame, one end of the fifth bottom rotating shaft is fixedly connected with one end of a fifth bottom rotating rod, a third driving gear is arranged at the other end of the fifth bottom rotating shaft, a third driven gear connected with the third driving gear is arranged on the third connecting rotating shaft, a sixth bottom rotating shaft is arranged on a third side edge, far away from the fourth corner, of the third corner of the first support frame, one end of the sixth bottom rotating shaft is fixedly connected with one end of the sixth bottom rotating rod, and therefore the fifth bottom rotating rod and the sixth bottom rotating rod are folded in the plane direction of the third side edge of the second support frame;
the fourth side interval that the fourth corner of second support frame kept away from first corner is equipped with seventh bottom axis of rotation and fourth connection axis of rotation, wherein the one end of seventh bottom axis of rotation and the one end fixed connection of seventh bottom dwang, and the other end of seventh bottom axis of rotation is equipped with fourth driving gear, and be equipped with the fourth passive gear who is connected with fourth driving gear on the fourth connection axis of rotation, the fourth side that the fourth corner was kept away from first corner of first support frame is equipped with eighth bottom axis of rotation, the one end of eighth bottom axis of rotation and the one end fixed connection of eighth bottom dwang, so that seventh bottom dwang and eighth bottom dwang fold in the plane direction that the fourth side of second support frame is located.
Wherein, at least one middle part flexible seat includes that one end is fixed to be set up at the fifth telescopic link of first connection axis of rotation, one end is fixed to be set up at the sixth telescopic link of second connection axis of rotation, one end is fixed to be set up at the seventh telescopic link of third connection axis of rotation, one end is fixed to be set up at the eighth telescopic link of fourth connection axis of rotation and be the third support frame of rectangle form, wherein the other end of fifth telescopic link articulates the first bight that sets up at the third support frame, the other end of sixth telescopic link articulates the second bight that sets up at the third support frame, the other end of seventh telescopic link articulates the third bight that sets up at the third support frame, the other end of eighth telescopic link articulates the fourth bight that sets up at the third support frame.
The first corner of the third support frame is far away from the first side edge of the second corner, a first middle rotating shaft and a fifth connecting rotating shaft are arranged at intervals, a fifth driving gear is arranged at the other end of the first middle rotating shaft, a fifth driven gear connected with the fifth driving gear is arranged on the fifth connecting rotating shaft, the fifth telescopic rod comprises a first middle rotating rod with one end fixedly arranged at one end of the first middle rotating shaft and a second middle rotating rod with one end fixedly arranged at the first connecting rotating shaft, the other end of the first middle rotating rod and the other end of the second middle rotating rod are hinged, and therefore the first middle rotating rod and the second middle rotating rod are folded in the plane direction where the first side edge of the third support frame is located;
A second middle rotating shaft and a sixth connecting rotating shaft are arranged at intervals on a second side edge, far away from the third corner, of the third support frame, a sixth driving gear is arranged at the other end of the second middle rotating shaft, a sixth driven gear connected with the sixth driving gear is arranged on the sixth connecting rotating shaft, and a sixth telescopic rod comprises a third middle rotating rod with one end fixedly arranged at one end of the second middle rotating shaft and a fourth middle rotating rod with one end fixedly arranged at the second connecting rotating shaft, wherein the other end of the third middle rotating rod and the other end of the fourth middle rotating rod are hinged, so that the third middle rotating rod and the fourth middle rotating rod are folded in the plane direction of the second side edge of the third support frame;
a third middle rotating shaft and a seventh connecting rotating shaft are arranged at intervals on a third side edge of a third corner, far away from the fourth corner, of the third support frame, a seventh driving gear is arranged at the other end of the third middle rotating shaft, a seventh driven gear connected with the seventh driving gear is arranged on the seventh connecting rotating shaft, a seventh telescopic rod comprises a fifth middle rotating rod, one end of which is fixedly arranged on one end of the third middle rotating shaft, and a sixth middle rotating rod, one end of which is fixedly arranged on the third connecting rotating shaft, wherein the other end of the fifth middle rotating rod and the other end of the sixth middle rotating rod are hinged, so that the fifth middle rotating rod and the sixth middle rotating rod are folded in the plane direction of the third side edge of the third support frame;
The fourth side interval that first bight was kept away from at fourth corner of third support frame is equipped with fourth middle part axis of rotation and eighth connection axis of rotation, the other end of fourth middle part axis of rotation is equipped with eighth driving gear, and be equipped with in the eighth connection axis of rotation with eighth driving gear connection's eighth driven gear, eighth telescopic link includes that one end is fixed to be set up the seventh middle part dwang and one end is fixed to be set up the eighth middle part dwang in the fourth connection axis of rotation on the one end of fourth middle part axis of rotation, wherein the other end of seventh middle part dwang and the other end articulated setting of eighth middle part dwang, in order to make seventh middle part dwang and eighth middle part dwang fold at the fourth side place plane direction of third support frame.
The top telescopic seat comprises a ninth telescopic rod, a tenth telescopic rod, an eleventh telescopic rod, a twelfth telescopic rod and a fourth supporting frame, wherein one end of the ninth telescopic rod is fixedly arranged on the fifth connecting rotating shaft, one end of the tenth telescopic rod is fixedly arranged on the sixth connecting rotating shaft, one end of the eleventh telescopic rod is fixedly arranged on the seventh connecting rotating shaft, one end of the twelfth telescopic rod is fixedly arranged on the eighth connecting rotating shaft, the fourth supporting frame is rectangular, the other end of the ninth telescopic rod is hinged to a first corner of the fourth supporting frame, the other end of the tenth telescopic rod is hinged to a second corner of the fourth supporting frame, the other end of the eleventh telescopic rod is hinged to a third corner of the fourth supporting frame, and the other end of the twelfth telescopic rod is hinged to the fourth corner of the fourth supporting frame.
The first corner of the fourth support frame is far away from the first side edge of the second corner, a first top rotating shaft is arranged on the first corner, the ninth telescopic rod comprises a first top rotating rod with one end fixedly arranged on one end of the first top rotating shaft and a second top rotating rod with one end fixedly arranged on the fifth connecting rotating shaft, the other end of the first top rotating rod and the other end of the second top rotating rod are hinged, and therefore the first top rotating rod and the second top rotating rod are folded in the plane direction of the first side edge of the fourth support frame;
the second corner of the fourth support frame is far away from the second side edge of the third corner, a second top rotating shaft is arranged on the second side edge of the fourth support frame, the tenth telescopic rod comprises a third top rotating rod, one end of the third top rotating rod is fixedly arranged on one end of the second top rotating shaft, and one end of the fourth top rotating rod is fixedly arranged on the sixth connecting rotating shaft, wherein the other end of the third top rotating rod and the other end of the fourth top rotating rod are hinged, so that the third top rotating rod and the fourth top rotating rod are folded in the plane direction where the second side edge of the fourth support frame is located;
a third top rotating shaft is arranged on a third side edge, far away from the fourth corner, of the third corner of the fourth support frame, the eleventh telescopic rod comprises a fifth top rotating rod, one end of which is fixedly arranged on one end of the third top rotating shaft, and a sixth top rotating rod, one end of which is fixedly arranged on the seventh connecting rotating shaft, wherein the other end of the fifth top rotating rod and the other end of the sixth top rotating rod are hinged, so that the fifth top rotating rod and the sixth top rotating rod are folded in the plane direction of the third side edge of the fourth support frame;
The fourth side that fourth corner was kept away from first corner of fourth support frame is equipped with the fourth top axis of rotation, and the twelfth telescopic link includes that one end is fixed to be set up the seventh top dwang and the one end that set up on the one end of fourth top axis of rotation is fixed to set up the eighth top dwang in the rotation epaxial in eighth connection, and wherein the other end of seventh top dwang and the other end of eighth top dwang hinge the setting to make seventh top dwang and eighth top dwang fold in the plane direction that fourth side place of fourth support frame was located.
The beneficial effects of the invention are as follows: unlike the prior art, the mechanical telescopic arm for power overhead operation disclosed by the invention comprises: the bottom telescopic seat comprises a bearing plate, a first support frame arranged on the bearing plate through a support column, a bottom telescopic rod with one end hinged on the first support frame, and a second support frame hinged with the other end of the bottom telescopic rod; at least one middle telescopic seat hinged to the second support frame; the top telescopic seat is hinged on at least one middle telescopic seat; the bottom telescopic seat further comprises a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting column, and a piston rod at the other end of the hydraulic oil cylinder is hinged to the telescopic rod so as to drive the bottom telescopic rod to be folded through the hydraulic oil cylinder. Through the mode, the mechanical telescopic arm for electric power aloft work disclosed by the invention can be folded, so that the occupied space is small when the mechanical telescopic arm is in a non-working state, and the mechanical telescopic arm is greatly convenient to transport.
Drawings
FIG. 1 is a schematic view of the mechanical telescopic arm of the present invention;
FIG. 2 is a schematic view of the bottom telescoping base of the mechanical telescoping arm of FIG. 1;
FIG. 3 is a schematic view of a part of the bottom telescoping seat of FIG. 2;
FIG. 4 is a schematic view of the middle telescopic seat of the mechanical telescopic arm of FIG. 1;
fig. 5 is a schematic structural view of a top telescopic seat of the mechanical telescopic arm in fig. 1.
Detailed Description
1-5, FIG. 1 is a schematic view of the mechanical telescopic arm of the present invention; FIG. 2 is a schematic view of the bottom telescoping base of the mechanical telescoping arm of FIG. 1; FIG. 3 is a schematic view of a part of the bottom telescoping seat of FIG. 2; FIG. 4 is a schematic view of the middle telescopic seat of the mechanical telescopic arm of FIG. 1; fig. 5 is a schematic structural view of a top telescopic seat of the mechanical telescopic arm in fig. 1. The mechanical telescopic arm comprises a bottom telescopic seat 10, at least one middle telescopic seat 20 and a top telescopic seat 30.
The bottom telescopic seat 10 comprises a bearing plate 100, a first supporting frame 105 arranged on the bearing plate 100 through a supporting column, a bottom telescopic rod with one end hinged on the first supporting frame 105, a second supporting frame 116 and a hydraulic cylinder, wherein the second supporting frame 116 is connected with the other end of the bottom telescopic rod.
In this embodiment, one end of the hydraulic cylinder is hinged on the support column, and a piston rod at the other end of the hydraulic cylinder is hinged on the bottom telescopic rod, so that the bottom telescopic rod is driven to be folded through the hydraulic cylinder.
Specifically, the first support frame 105 is rectangular, and the support columns include a first support column 101 disposed at a first corner of the first support frame 105, a second support column 102 disposed at a second corner of the first support frame 105, a third support column 103 disposed at a third corner of the first support frame 105, and a fourth support column 104 disposed at a fourth corner of the first support frame 105.
In this embodiment, the hydraulic cylinders include a first hydraulic cylinder 106 and a second hydraulic cylinder 107, one end of the first hydraulic cylinder 106 is hinged on the first support column 101, and one end of the second hydraulic cylinder 107 is hinged on the third support column 103.
Further, the bottom telescoping rod includes a first telescoping rod with one end hinged to a first corner of the first support frame 105, a second telescoping rod with one end hinged to a second corner of the first support frame 105, a third telescoping rod with one end hinged to a third corner of the first support frame 105, and a fourth telescoping rod with one end hinged to a fourth corner of the first support frame 105. Wherein the piston rod at the other end of the first hydraulic cylinder 106 is hinged on the second telescopic rod, and the piston rod at the other end of the second hydraulic cylinder 107 is hinged on the fourth telescopic rod.
In this embodiment, the second support 116 is rectangular, the other end of the first telescopic rod is hinged on the first corner of the second support 116, the other end of the second telescopic rod is hinged on the second corner of the second support 116, the other end of the third telescopic rod is hinged on the third corner of the second support 116, and the other end of the fourth telescopic rod is hinged on the fourth corner of the second support 116.
In this embodiment, the first telescopic link includes a first bottom rotating link 108 having one end hinged to a first corner of the second support frame 116 and a second bottom rotating link 109 having one end hinged to the first corner of the first support frame 105, and the other end of the second bottom rotating link 109 is hinged to the other end of the first bottom rotating link 108. The second telescopic rod comprises a third bottom rotating rod 110 with one end hinged to a second corner of the second supporting frame 116 and a fourth bottom rotating rod 111 with one end hinged to a second corner of the first supporting frame 105, and the other end of the fourth bottom rotating rod 111 is hinged to the other end of the third bottom rotating rod 110. The third telescopic rod comprises a fifth bottom rotating rod 112 with one end hinged to the third corner of the second supporting frame 116 and a sixth bottom rotating rod 113 with one end hinged to the third corner of the first supporting frame 105, and the other end of the sixth bottom rotating rod 113 is hinged to the other end of the fifth bottom rotating rod 112. The fourth telescopic rod comprises a seventh bottom rotating rod 114 with one end hinged to the fourth corner of the second supporting frame 116 and an eighth bottom rotating rod 115 with one end hinged to the fourth corner of the first supporting frame 105, and the other end of the eighth bottom rotating rod 115 is hinged to the other end of the seventh bottom rotating rod 114.
Preferably, a piston rod of the other end of the first hydraulic cylinder 106 is hinged to the fourth bottom turning rod 111, and a piston rod of the other end of the second hydraulic cylinder 107 is hinged to the eighth bottom turning rod 115.
In this embodiment, a first bottom rotating shaft 1161 and a first connecting rotating shaft 117 are disposed at a first side edge of a first corner of the second support frame 116 away from the second corner, wherein one end of the first bottom rotating shaft 1161 is fixedly connected with one end of the first bottom rotating rod 108, a first driving gear 1162 is disposed at the other end of the first bottom rotating shaft 1161, and a first driven gear 1171 in gear connection with the first driving gear 1162 is disposed on the first connecting rotating shaft 117. The first corner of the first support frame 105 is far away from the first side of the second corner, and a second bottom rotating shaft 1051 is provided, and one end of the second bottom rotating shaft 1051 is fixedly connected with one end of the second bottom rotating rod 109, so that the first bottom rotating rod 108 and the second bottom rotating rod 109 are folded in the plane direction where the first side of the second support frame 116 is located.
Specifically, the other end of the second bottom rotating rod 109 is rotationally connected with the other end of the first bottom rotating rod 108, wherein the other end of the first bottom rotating rod 108 is provided with a first protrusion 1081, the first protrusion 1081 is provided with a first through hole, 2 second protrusions 1091,2 are arranged at intervals on the other end of the second bottom rotating rod 109, the second protrusions 1091 are provided with second through holes corresponding to the first through holes, the first protrusion 1081 is arranged between the 2 second protrusions 1091, a first connecting rod is arranged in the first through holes and the second through holes in a penetrating manner, the first connecting rod and the first bottom rotating shaft 1161 are arranged in parallel, and the first bottom rotating rod 108 and the second bottom rotating rod 109 are folded up and down on a plane where the first side edge of the second support frame 116 is located.
In this embodiment, a third bottom rotating shaft 1163 and a second connecting rotating shaft 118 are disposed at intervals on a second side edge of the second corner of the second support frame 116, which is far away from the third corner, wherein one end of the third bottom rotating shaft 1163 is fixedly connected with one end of the third bottom rotating rod 110, the other end of the third bottom rotating shaft 1163 is provided with a second driving gear 1164, and a second driven gear 1181 in gear connection with the second driving gear 1164 is disposed on the second connecting rotating shaft 118. The second corner of the first support frame 105 far away from the second side of the third corner is provided with a fourth bottom rotating shaft 1052, and one end of the fourth bottom rotating shaft 1052 is fixedly connected with one end of the fourth bottom rotating rod 111, so that the third bottom rotating rod 110 and the fourth bottom rotating rod 111 are folded in the plane direction where the second side of the second support frame 116 is located.
Specifically, the other end of the third bottom rotating rod 110 is rotatably connected with the other end of the fourth bottom rotating rod 111, wherein the other end of the third bottom rotating rod 110 is provided with a third protrusion 1101, wherein the third protrusion 1101 is provided with a third through hole, 2 fourth protrusions 1111,2 are arranged at intervals on the other end of the fourth bottom rotating rod 111, fourth through holes corresponding to the third through holes are formed in the fourth protrusions 1111, the third protrusion 1101 is arranged between the 2 fourth protrusions 1111, a second connecting rod is arranged in the third through holes and the fourth through holes in a penetrating manner, the second connecting rod and the third bottom rotating shaft 1163 are arranged in parallel, and the third bottom rotating rod 110 and the fourth bottom rotating rod 111 are folded up and down on a plane where the second side edge of the second supporting frame 116 is located.
In this embodiment, a fifth bottom rotating shaft and a third connecting rotating shaft 119 are disposed at intervals on a third side edge of the third corner of the second support frame 116, where one end of the fifth bottom rotating shaft is fixedly connected with one end of the fifth bottom rotating rod 112, the other end of the fifth bottom rotating shaft is provided with a third driving gear, and a third driven gear connected with the third driving gear is disposed on the third connecting rotating shaft. A sixth bottom rotating shaft is disposed on a third side of the third corner of the first support frame 105, which is far away from the fourth corner, and one end of the sixth bottom rotating shaft is fixedly connected with one end of the sixth bottom rotating rod 113, so that the fifth bottom rotating rod 112 and the sixth bottom rotating rod 113 are folded in a plane direction where the third side of the second support frame 116 is located.
Specifically, the other end of the fifth bottom rotating rod 112 is rotatably connected with the other end of the sixth bottom rotating rod 113, wherein the other end of the fifth bottom rotating rod 112 is provided with a fifth protrusion 1121, wherein the fifth protrusion 1121 is provided with a fifth through hole, 2 sixth protrusions 1131,2 are arranged at intervals on the other end of the sixth bottom rotating rod 113, the sixth protrusions 1131 are provided with sixth through holes corresponding to the fifth through holes, the fifth protrusion 1121 is arranged between the 2 sixth protrusions 1131, third connecting rods are arranged in the fifth through holes and the sixth through holes in a penetrating manner, the third connecting rods are arranged in parallel with the fifth bottom rotating shaft, and the fifth bottom rotating rod 112 and the sixth bottom rotating rod 113 are folded up and down on a plane where the third side edge of the second support frame 116 is located.
In this embodiment, a seventh bottom rotating shaft and a fourth connecting rotating shaft 120 are disposed at a fourth side of the fourth corner of the second support frame 116 away from the first corner, wherein one end of the seventh bottom rotating shaft is fixedly connected with one end of the seventh bottom rotating rod 114, the other end of the seventh bottom rotating shaft is provided with a fourth driving gear 1165, and a fourth driven gear 120a in gear connection with the fourth driving gear 1165 is disposed on the fourth connecting rotating shaft 120. An eighth bottom rotating shaft is disposed on a fourth side of the fourth corner of the first support frame 105 far away from the first corner, and one end of the eighth bottom rotating shaft is fixedly connected with one end of the eighth bottom rotating rod 115, so that the seventh bottom rotating rod 114 and the eighth bottom rotating rod 115 are folded in a plane direction where the fourth side of the second support frame 116 is located.
Specifically, the other end of the seventh bottom rotating rod 114 is rotatably connected with the other end of the eighth bottom rotating rod 115, wherein the other end of the seventh bottom rotating rod 114 is provided with a seventh protrusion 1141, wherein the seventh protrusion 1141 is provided with a seventh through hole, 2 eighth protrusions 1151,2 are provided at intervals on the other end of the eighth bottom rotating rod 115, eighth protrusions 1151 corresponding to the seventh through hole are provided, the seventh protrusion 1141 is disposed between the 2 eighth protrusions 1151, and fourth connecting rods are disposed in the seventh through hole and the eighth through hole in a penetrating manner, wherein the fourth connecting rods are disposed in parallel with the seventh bottom rotating shaft, so that the seventh bottom rotating rod 114 and the eighth bottom rotating rod 115 are folded up and down on a plane on which the fourth side edge of the second support 116 is located.
At least one intermediate telescoping mount 20 is hingedly mounted to the second support bracket 116.
In this embodiment, the at least one middle telescopic seat 20 includes a fifth telescopic rod having one end fixedly disposed on the first connecting rotation shaft 117, a sixth telescopic rod having one end fixedly disposed on the second connecting rotation shaft 118, a seventh telescopic rod having one end fixedly disposed on the third connecting rotation shaft 119, an eighth telescopic rod having one end fixedly disposed on the fourth connecting rotation shaft 120, and a rectangular third supporting frame 201. The other end of the fifth telescopic rod is hinged to the first corner of the third supporting frame 201, the other end of the sixth telescopic rod is hinged to the second corner of the third supporting frame 201, the other end of the seventh telescopic rod is hinged to the third corner of the third supporting frame 201, and the other end of the eighth telescopic rod is hinged to the fourth corner of the third supporting frame 201.
Specifically, a first middle rotating shaft 202 and a fifth connecting rotating shaft 204 are disposed at a first side edge of a first corner of the third support frame 201 far away from the second corner at intervals, a fifth driving gear 203 is disposed at the other end of the first middle rotating shaft 202, and a fifth driven gear 2041 in gear connection with the fifth driving gear 203 is disposed on the fifth connecting rotating shaft 204. The fifth telescopic link includes a first middle rotating link 205 having one end fixedly disposed on one end of the first middle rotating shaft 202 and a second middle rotating link 206 having one end fixedly disposed on the first connecting rotating shaft 117, wherein the other end of the first middle rotating link 205 and the other end of the second middle rotating link 206 are hinged such that the first middle rotating link 205 and the second middle rotating link 206 are folded in a plane direction in which the first side of the third supporting frame 201 is located.
A second middle rotating shaft 207 and a sixth connecting rotating shaft 209 are arranged at intervals on a second side edge, far away from the third corner, of the second corner of the third supporting frame 201, a sixth driving gear 208 is arranged at the other end of the second middle rotating shaft 207, and a sixth driven gear 2091 in gear connection with the sixth driving gear 208 is arranged on the sixth connecting rotating shaft 209. The sixth telescopic link includes a third middle rotating rod 210 having one end fixedly disposed on one end of the second middle rotating shaft 207 and a fourth middle rotating rod 211 having one end fixedly disposed on the second connecting rotating shaft 118, wherein the other end of the third middle rotating rod 210 and the other end of the fourth middle rotating rod 211 are hinged such that the third middle rotating rod 210 and the fourth middle rotating rod 211 are folded in a plane direction in which the second side of the third supporting frame 201 is located.
A third middle rotating shaft and a seventh connecting rotating shaft are arranged at intervals on a third side edge, far away from the fourth corner, of the third corner of the third supporting frame 201, a seventh driving gear is arranged at the other end of the third middle rotating shaft, and a seventh driven gear connected with the seventh driving gear is arranged on the seventh connecting rotating shaft. The seventh telescopic link includes a fifth middle rotating rod 212 having one end fixedly disposed on one end of the third middle rotating shaft and a sixth middle rotating rod 213 having one end fixedly disposed on the third connecting rotating shaft 119, wherein the other end of the fifth middle rotating rod 212 and the other end of the sixth middle rotating rod 213 are hinged such that the fifth middle rotating rod 212 and the sixth middle rotating rod 213 are folded in a plane direction in which the third side of the third supporting frame 201 is located.
A fourth middle rotating shaft and an eighth connecting rotating shaft 215 are arranged at intervals on the fourth side edge, far away from the first corner, of the fourth corner of the third supporting frame 201, an eighth driving gear 214 is arranged at the other end of the fourth middle rotating shaft, and an eighth driven gear 2151 in gear connection with the eighth driving gear 214 is arranged on the eighth connecting rotating shaft 215. The eighth telescoping rod includes a seventh middle rotating rod 216 having one end fixedly disposed on one end of the fourth middle rotating shaft and an eighth middle rotating rod 217 having one end fixedly disposed on the fourth connecting rotating shaft 120, wherein the other end of the seventh middle rotating rod 216 and the other end of the eighth middle rotating rod 217 are hinged such that the seventh middle rotating rod 216 and the eighth middle rotating rod 217 are folded in a plane direction in which the fourth side of the third supporting frame 201 is located.
The top telescoping base 30 is hingedly mounted to at least one middle telescoping base 20. Specifically, the top telescoping seater 30 is hingedly disposed on the third support frame 201.
In this embodiment, the top telescopic base 30 includes a ninth telescopic rod having one end fixedly disposed on the fifth connecting rotation shaft 204, a tenth telescopic rod having one end fixedly disposed on the sixth connecting rotation shaft 209, an eleventh telescopic rod having one end fixedly disposed on the seventh connecting rotation shaft, a twelfth telescopic rod having one end fixedly disposed on the eighth connecting rotation shaft 215, and a fourth supporting frame 301 having a rectangular shape. The other end of the ninth telescopic rod is hinged to the first corner of the fourth supporting frame 301, the other end of the tenth telescopic rod is hinged to the second corner of the fourth supporting frame 301, the other end of the eleventh telescopic rod is hinged to the third corner of the fourth supporting frame 301, and the other end of the twelfth telescopic rod is hinged to the fourth corner of the fourth supporting frame 301.
Specifically, a first corner of the fourth support frame 301 is provided with a first top rotating shaft 302 away from a first side of the second corner, and the ninth telescopic link includes a first top rotating shaft 303 having one end fixedly disposed on one end of the first top rotating shaft 302 and a second top rotating shaft 304 having one end fixedly disposed on the fifth connecting rotating shaft 204. The other end of the first top rotating rod 303 and the other end of the second top rotating rod 304 are hinged, so that the first top rotating rod 303 and the second top rotating rod 304 are folded in the plane direction of the first side edge of the fourth supporting frame 301.
The second corner of the fourth support frame 301 is provided with a second top rotating shaft 305 away from the second side of the third corner, and the tenth telescopic rod includes a third top rotating rod 306 having one end fixedly disposed on one end of the second top rotating shaft 305 and a fourth top rotating rod 307 having one end fixedly disposed on the sixth connecting rotating shaft 209. The other end of the third top rotating rod 306 and the other end of the fourth top rotating rod 307 are hinged, so that the third top rotating rod 306 and the fourth top rotating rod 307 are folded in the plane direction where the second side edge of the fourth supporting frame 301 is located.
The third side of the third corner of the fourth support 301 far from the fourth corner is provided with a third top rotating shaft, and the eleventh telescopic rod includes a fifth top rotating rod 308 with one end fixedly arranged on one end of the third top rotating shaft and a sixth top rotating rod 309 with one end fixedly arranged on the seventh connecting rotating shaft. The other end of the fifth top rotating rod 308 and the other end of the sixth top rotating rod 309 are hinged, so that the fifth top rotating rod 308 and the sixth top rotating rod 309 are folded in the plane direction where the third side of the fourth supporting frame 301 is located.
The fourth side of the fourth corner of the fourth supporting frame 301 far from the first corner is provided with a fourth top rotating shaft, and the twelfth telescopic rod comprises a seventh top rotating rod 310 with one end fixedly arranged on one end of the fourth top rotating shaft and an eighth top rotating rod 311 with one end fixedly arranged on the eighth connecting rotating shaft 215. The other end of the seventh top rotating rod 310 and the other end of the eighth top rotating rod 311 are hinged, so that the seventh top rotating rod 310 and the eighth top rotating rod 311 are folded in the plane direction where the fourth side of the fourth supporting frame 301 is located.
The specific working principle is the same as that of the first hydraulic cylinder 106 and the second hydraulic cylinder 107, so taking the first hydraulic cylinder 106 as an example, a piston rod at the other end of the first hydraulic cylinder 106 stretches out to push the fourth bottom rotating rod 111 to rotate and lift, so that the third bottom rotating rod 110 is pushed to lift by the fourth bottom rotating rod 111, the third bottom rotating rod 110 drives the second driving gear 1164 to rotate and drives the second driven gear 1181 to rotate, the second driven gear 1181 drives the fourth middle rotating rod 211 to rotate and enable the fourth middle rotating rod 211 to lift, so that the third middle rotating rod 210 is driven to lift, the third middle rotating rod 210 drives 208 to rotate and drives the sixth driven gear 2091 to rotate, the sixth driven gear 2091 drives the fourth top rotating rod 307 to lift and drives the third top rotating rod 306 to lift, and vice versa.
In summary, the mechanical telescopic arm for power overhead operation disclosed by the invention comprises: the bottom telescopic seat comprises a bearing plate, a first support frame arranged on the bearing plate through a support column, a bottom telescopic rod with one end hinged on the first support frame, and a second support frame hinged with the other end of the bottom telescopic rod; at least one middle telescopic seat hinged to the second support frame; the top telescopic seat is hinged on at least one middle telescopic seat; the bottom telescopic seat further comprises a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting column, and a piston rod at the other end of the hydraulic oil cylinder is hinged to the telescopic rod so as to drive the bottom telescopic rod to be folded through the hydraulic oil cylinder. Through the mode, the mechanical telescopic arm for electric power aloft work disclosed by the invention can be folded, so that the occupied space is small when the mechanical telescopic arm is in a non-working state, and the mechanical telescopic arm is greatly convenient to transport.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. A mechanical telescopic boom for electric overhead operations, comprising:
the bottom telescopic seat comprises a bearing plate, a first support frame arranged on the bearing plate through a support column, a bottom telescopic rod with one end hinged to the first support frame, and a second support frame hinged to the other end of the bottom telescopic rod;
at least one middle telescopic seat hinged to the second support frame;
the top telescopic seat is hinged on the at least one middle telescopic seat;
the bottom telescopic seat further comprises a hydraulic oil cylinder, one end of the hydraulic oil cylinder is hinged to the supporting column, and a piston rod at the other end of the hydraulic oil cylinder is hinged to the bottom telescopic rod so as to drive the bottom telescopic rod to be folded through the hydraulic oil cylinder;
the first support frame is rectangular, the support columns comprise a first support column arranged at a first corner of the first support frame, a second support column arranged at a second corner of the first support frame, a third support column arranged at a third corner of the first support frame and a fourth support column arranged at a fourth corner of the first support frame, the hydraulic cylinders comprise a first hydraulic cylinder and a second hydraulic cylinder, one end of the first hydraulic cylinder is hinged to the first support column, and one end of the second hydraulic cylinder is hinged to the third support column;
The bottom telescopic rod comprises a first telescopic rod, a second telescopic rod, a third telescopic rod and a fourth telescopic rod, one end of the first telescopic rod is hinged to the first corner of the first support frame, one end of the second telescopic rod is hinged to the second corner of the first support frame, one end of the third telescopic rod is hinged to the third corner of the first support frame, one end of the fourth telescopic rod is hinged to the fourth corner of the first support frame, a piston rod at the other end of the first hydraulic oil cylinder is hinged to the second telescopic rod, and a piston rod at the other end of the second hydraulic oil cylinder is hinged to the fourth telescopic rod;
the second support frame is rectangular, the other end of the first telescopic rod is hinged to a first corner of the second support frame, the other end of the second telescopic rod is hinged to a second corner of the second support frame, the other end of the third telescopic rod is hinged to a third corner of the second support frame, and the other end of the fourth telescopic rod is hinged to a fourth corner of the second support frame;
the first telescopic rod comprises a first bottom rotating rod with one end hinged to a first corner of the second support frame and a second bottom rotating rod with one end hinged to the first corner of the first support frame, the other end of the second bottom rotating rod is hinged to the other end of the first bottom rotating rod, the second telescopic rod comprises a third bottom rotating rod with one end hinged to the second corner of the second support frame and a fourth bottom rotating rod with one end hinged to the second corner of the first support frame, the other end of the fourth bottom rotating rod is hinged to the other end of the third bottom rotating rod, the third telescopic rod comprises a fifth bottom rotating rod with one end hinged to the third corner of the second support frame and a sixth bottom rotating rod with one end hinged to the third corner of the first support frame, the other end of the sixth bottom rotating rod is hinged to the other end of the fifth bottom rotating rod, the fourth telescopic rod comprises a seventh bottom rotating rod with one end hinged to the fourth corner of the second support frame and a seventh bottom rotating rod with one end hinged to the other end of the seventh bottom rotating rod of the second support frame and the eighth bottom rotating rod is hinged to the other end of the eighth bottom rotating rod of the eighth support frame;
A first bottom rotating shaft and a first connecting rotating shaft are arranged at intervals on a first side edge, far away from the second corner, of the second support frame, one end of the first bottom rotating shaft is fixedly connected with one end of the first bottom rotating rod, a first driving gear is arranged at the other end of the first bottom rotating shaft, a first driven gear which is in gear connection with the first driving gear is arranged on the first connecting rotating shaft, a second bottom rotating shaft is arranged on a first side edge, far away from the second corner, of the first corner of the first support frame, and one end of the second bottom rotating shaft is fixedly connected with one end of the second bottom rotating rod, so that the first bottom rotating rod and the second bottom rotating rod are folded along the plane direction where the first side edge of the second support frame is located;
a third bottom rotating shaft and a second connecting rotating shaft are arranged at intervals on the second side edge, far away from the third corner, of the second support frame, one end of the third bottom rotating shaft is fixedly connected with one end of the third bottom rotating rod, a second driving gear is arranged at the other end of the third bottom rotating shaft, a second driven gear in gear connection with the second driving gear is arranged on the second connecting rotating shaft, a fourth bottom rotating shaft is arranged on the second side edge, far away from the third corner, of the second corner of the first support frame, and one end of the fourth bottom rotating shaft is fixedly connected with one end of the fourth bottom rotating rod, so that the third bottom rotating rod and the fourth bottom rotating rod are folded in the plane direction where the second side edge of the second support frame is located;
A fifth bottom rotating shaft and a third connecting rotating shaft are arranged on a third side edge, far away from the fourth corner, of the third corner of the second support frame at intervals, one end of the fifth bottom rotating shaft is fixedly connected with one end of the fifth bottom rotating rod, a third driving gear is arranged on the other end of the fifth bottom rotating shaft, a third driven gear in gear connection with the third driving gear is arranged on the third connecting rotating shaft, a sixth bottom rotating shaft is arranged on a third side edge, far away from the fourth corner, of the third corner of the first support frame, one end of the sixth bottom rotating shaft is fixedly connected with one end of the sixth bottom rotating rod, and therefore the fifth bottom rotating rod and the sixth bottom rotating rod are folded in the plane direction where the third side edge of the second support frame is located;
the fourth side interval that the fourth corner of second support frame kept away from first corner is equipped with seventh bottom axis of rotation and fourth connection axis of rotation, wherein the one end of seventh bottom axis of rotation with the one end fixed connection of seventh bottom dwang, just the other end of seventh bottom axis of rotation is equipped with the fourth driving gear, just be equipped with on the fourth connection axis of rotation with fourth driving gear connection's fourth passive gear, the fourth side that the fourth corner was kept away from first corner of first support frame is equipped with eighth bottom axis of rotation, the one end of eighth bottom axis of rotation with the one end fixed connection of eighth bottom dwang, so that seventh bottom dwang with eighth bottom dwang is in the plane direction that the fourth side of second support frame is located is folding.
2. The mechanical telescopic arm according to claim 1, wherein the at least one middle telescopic seat comprises a fifth telescopic rod, a sixth telescopic rod, a seventh telescopic rod, an eighth telescopic rod and a rectangular third supporting frame, one end of the fifth telescopic rod is fixedly arranged on the first connecting rotating shaft, one end of the sixth telescopic rod is fixedly arranged on the second connecting rotating shaft, one end of the seventh telescopic rod is fixedly arranged on the third connecting rotating shaft, one end of the eighth telescopic rod is fixedly arranged on the fourth connecting rotating shaft, the other end of the fifth telescopic rod is hinged to a first corner of the third supporting frame, the other end of the sixth telescopic rod is hinged to a second corner of the third supporting frame, the other end of the seventh telescopic rod is hinged to a third corner of the third supporting frame, and the other end of the eighth telescopic rod is hinged to a fourth corner of the third supporting frame.
3. The mechanical telescopic boom according to claim 2, wherein a first middle rotating shaft and a fifth connecting rotating shaft are arranged at a first side edge of a first corner of the third support frame far away from a second corner at intervals, a fifth driving gear is arranged at the other end of the first middle rotating shaft, a fifth driven gear connected with the fifth driving gear is arranged on the fifth connecting rotating shaft, the fifth telescopic boom comprises a first middle rotating rod with one end fixedly arranged at one end of the first middle rotating shaft and a second middle rotating rod with one end fixedly arranged at the first connecting rotating shaft, and the other end of the first middle rotating rod and the other end of the second middle rotating rod are hinged so that the first middle rotating rod and the second middle rotating rod are folded in the plane direction of the first side edge of the third support frame;
A second middle rotating shaft and a sixth connecting rotating shaft are arranged at intervals on a second side edge, far away from the third corner, of the third support frame, a sixth driving gear is arranged at the other end of the second middle rotating shaft, a sixth driven gear connected with the sixth driving gear is arranged on the sixth connecting rotating shaft, the sixth telescopic rod comprises a third middle rotating rod, one end of which is fixedly arranged at one end of the second middle rotating shaft, and a fourth middle rotating rod, one end of which is fixedly arranged at the second connecting rotating shaft, wherein the other end of the third middle rotating rod and the other end of the fourth middle rotating rod are hinged, so that the third middle rotating rod and the fourth middle rotating rod are folded in the plane direction where the second side edge of the third support frame is located;
a third middle rotating shaft and a seventh connecting rotating shaft are arranged at intervals on a third side edge, far away from a fourth corner, of a third corner of the third support frame, a seventh driving gear is arranged at the other end of the third middle rotating shaft, a seventh driven gear connected with the seventh driving gear is arranged on the seventh connecting rotating shaft, the seventh telescopic rod comprises a fifth middle rotating rod, one end of which is fixedly arranged at one end of the third middle rotating shaft, and a sixth middle rotating rod, one end of which is fixedly arranged at the third connecting rotating shaft, wherein the other end of the fifth middle rotating rod and the other end of the sixth middle rotating rod are hinged, so that the fifth middle rotating rod and the sixth middle rotating rod are folded in the plane direction of the third side edge of the third support frame;
The fourth side interval that the fourth corner of third support frame kept away from first corner is equipped with fourth middle part axis of rotation and eighth connection axis of rotation, the other end of fourth middle part axis of rotation is equipped with eighth driving gear, just be equipped with in the eighth connection axis of rotation with eighth driven gear of eighth driving gear connection, eighth telescopic link includes that one end is fixed to be set up seventh middle part dwang and the fixed setting of one end on the one end of fourth middle part axis of rotation are in eighth middle part dwang on the fourth connection axis of rotation, wherein the other end of seventh middle part dwang with the other end of eighth middle part dwang articulates the setting, so that seventh middle part dwang with eighth middle part dwang is in the plane direction that the fourth side of third support frame is located is folding.
4. The mechanical telescopic arm according to claim 3, wherein the top telescopic seat comprises a ninth telescopic rod, one end of which is fixedly arranged on the fifth connecting rotating shaft, a tenth telescopic rod, one end of which is fixedly arranged on the sixth connecting rotating shaft, an eleventh telescopic rod, one end of which is fixedly arranged on the seventh connecting rotating shaft, a twelfth telescopic rod, one end of which is fixedly arranged on the eighth connecting rotating shaft, and a fourth rectangular support frame, wherein the other end of the ninth telescopic rod is hinged on a first corner of the fourth support frame, the other end of the tenth telescopic rod is hinged on a second corner of the fourth support frame, the other end of the eleventh telescopic rod is hinged on a third corner of the fourth support frame, and the other end of the twelfth telescopic rod is hinged on a fourth corner of the fourth support frame.
5. The mechanical telescopic boom according to claim 4, wherein a first corner of the fourth support frame is provided with a first top rotating shaft away from a first side edge of the second corner, the ninth telescopic boom comprises a first top rotating shaft, one end of which is fixedly arranged on one end of the first top rotating shaft, and a second top rotating shaft, one end of which is fixedly arranged on the fifth connecting rotating shaft, wherein the other end of the first top rotating shaft and the other end of the second top rotating shaft are hinged, so that the first top rotating shaft and the second top rotating shaft are folded in a plane direction where the first side edge of the fourth support frame is located;
the second corner of the fourth support frame far away from the second side edge of the third corner is provided with a second top rotating shaft, the tenth telescopic rod comprises a third top rotating rod, one end of which is fixedly arranged at one end of the second top rotating shaft, and a fourth top rotating rod, one end of which is fixedly arranged at the sixth connecting rotating shaft, wherein the other end of the third top rotating rod and the other end of the fourth top rotating rod are hinged, so that the third top rotating rod and the fourth top rotating rod are folded in the plane direction of the second side edge of the fourth support frame;
A third top rotating shaft is arranged on a third side edge, far away from the fourth corner, of the third corner of the fourth support frame, the eleventh telescopic rod comprises a fifth top rotating rod, one end of which is fixedly arranged on one end of the third top rotating shaft, and a sixth top rotating rod, one end of which is fixedly arranged on the seventh connecting rotating shaft, wherein the other end of the fifth top rotating rod and the other end of the sixth top rotating rod are hinged, so that the fifth top rotating rod and the sixth top rotating rod are folded in the plane direction of the third side edge of the fourth support frame;
the fourth side that fourth corner was kept away from first corner of fourth support frame is equipped with the fourth top axis of rotation, twelfth telescopic link includes that one end is fixed to be set up seventh top dwang and one end on the one end of fourth top axis of rotation are fixed to be set up eighth top dwang on the eighth connection axis of rotation, wherein the other end of seventh top dwang with the other end of eighth top dwang articulates the setting, so that seventh top dwang with eighth top dwang is in the plane orientation of fourth side place of fourth support frame is folding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107840.8A CN107879293B (en) | 2017-11-10 | 2017-11-10 | Mechanical telescopic arm for electric power overhead operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107840.8A CN107879293B (en) | 2017-11-10 | 2017-11-10 | Mechanical telescopic arm for electric power overhead operation |
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| CN107879293A CN107879293A (en) | 2018-04-06 |
| CN107879293B true CN107879293B (en) | 2023-12-22 |
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| CN108439261A (en) * | 2018-04-13 | 2018-08-24 | 凤台县农之梦家庭农场有限公司 | A kind of tree branch trimming auxiliary mould |
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| CN107879293A (en) | 2018-04-06 |
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