CN209651832U - A kind of high-altitude operation vehicle sequential telescopic boom system - Google Patents
A kind of high-altitude operation vehicle sequential telescopic boom system Download PDFInfo
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- CN209651832U CN209651832U CN201822272082.1U CN201822272082U CN209651832U CN 209651832 U CN209651832 U CN 209651832U CN 201822272082 U CN201822272082 U CN 201822272082U CN 209651832 U CN209651832 U CN 209651832U
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Abstract
The utility model discloses a kind of high-altitude operation vehicle sequential telescopic boom systems, wherein sequential telescopic mechanism includes the level-one telescopic oil cylinder being arranged side by side and two-stage telescopic cylinder, the telescopic end of level-one cylinder rod is equipped with valve plate I, and the both ends of valve plate I are connected by installation axle with the mounting base of basic arm tail portion；The tail end barrel of second level cylinder barrel is equipped with mounting plate, and is connected by mounting plate with the attachment base of three joint arms tail portion；The telescopic end of second level cylinder rod is equipped with valve plate II, the tail end barrel two sides of level-one cylinder barrel are laterally fixed with cylinder barrel axis, the axis hole extended transversely through is offered on valve plate II, the cylinder barrel axis of level-one cylinder barrel barrel side passes through above-mentioned axis hole, and is commonly connected in the mounting base of two joint arm tail portions with the cylinder barrel axis of the other side.The utility model is compact-sized, duty space is small, can obtain bigger effectively insulation overhang under same operation amplitude, improve the insulation performance and safety and reliability of high altitude operation product.
Description
Technical field
The utility model relates to a kind of sequential telescopic cantilever cranes, and in particular to a kind of high-altitude operation vehicle sequential telescopic cantilever crane system
System, belongs to high-altitude operation vehicle technical field.
Background technique
In engineering machinery field, single oil cylinder stretches technology with relatively broad application, can adapt in various engineering
The needs of construction, therefore have a very important role for engineering machinery.
Existing sequential telescopic boom system is mostly used greatly multiple oil cylinder schemes of upper and lower lamination arrangement or is stretched using multistage
Contracting oil cylinder scheme realizes the flexible of cantilever cranes at different levels, and the connecting shaft of each oil cylinder is staggered up and down in this arrangement, has arrangement letter
List is easier to realization advantage, has been used in arm of derrick field, first stretches retraction for realizing rear joint arm and then improves boom and hangs load energy
Power；But the oil cylinder of lamination up and down or multi-stage expansion oil cylinder own vol due to use are larger, it is therefore desirable to matched telescopic boom section
Size is larger, if can seriously affect fluid pressure line space in arm on high-altitude operation vehicle, constrains sequential telescopic technology and exists
Application on high altitude operation product；As using being arranged side by side, then will appear oil cylinder connecting shaft and mutually block, what is interfered asks
Topic；And multi-stage expansion cylinder, due to cylinder diameters differences at different levels, velocity perturbation is larger when switching, and has to high altitude operation personnel certain
Influence, be unfavorable for high altitude operation.
The synchronization telescope technology that the product of insulated type high altitude operation at present uses wirerope to combine with oil cylinder, because cantilever crane elongation must
It is so to extend to length by short, especially in wide job by a small margin, the total extension elongation of cantilever crane necessarily has half overhang by second
It saves metal arm to occupy, often insufficient so as to cause effective insulation overhang of third section insulation arm, serious reduce even is lost
To the insulation protection of aerial work platform, to be engaged in high altitude platform high-voltage electrical apparatus operating personnel generate it is biggish
Electric shock injures and deaths hidden danger.
Summary of the invention
In order to overcome various deficiencies of the existing technology, the utility model provides a kind of high-altitude operation vehicle sequential telescopic arm
Frame system, it is compact-sized, occupy little space, bigger effectively insulation overhang can be obtained, high-altitude is improved under same operation amplitude
The insulation performance and safety and reliability of operation product.
In order to realize above-mentioned purpose of utility model, a kind of high-altitude operation vehicle sequential telescopic boom system of the utility model, packet
Basic arm, two joint arms and three joint arms are included, three joint arms are built-in with sequential telescopic mechanism, and sequential telescopic mechanism is controlled in sequential telescopic is
Three joint arms, two joint arms are driven successively to stretch out under the action of system；The sequential telescopic mechanism includes the flexible oil of level-one being arranged side by side
Cylinder and two-stage telescopic cylinder, level-one telescopic oil cylinder include level-one cylinder barrel and level-one cylinder rod, and two-stage telescopic cylinder includes second level cylinder barrel
With second level cylinder rod, the telescopic end of level-one cylinder rod is equipped with valve plate I, the internal oil passages of valve plate I respectively with level-one cylinder barrel, level-one cylinder rod
Hydraulic fluid port connection, the both ends of valve plate I are connected by installation axle with the mounting base of basic arm tail portion；On the tail end barrel of second level cylinder barrel
It is connected equipped with mounting plate, and by mounting plate with the attachment base of three joint arms tail portion；The telescopic end of second level cylinder rod is equipped with valve plate II,
The internal oil passages of valve plate II are communicated with the hydraulic fluid port of second level cylinder barrel, second level cylinder rod respectively, and the tail end barrel two sides of level-one cylinder barrel are lateral
It is fixed with cylinder barrel axis, the axis hole extended transversely through is offered on valve plate II, the cylinder barrel axis of level-one cylinder barrel barrel side passes through above-mentioned axis
Hole, and be commonly connected in the mounting base of two joint arm tail portions with the cylinder barrel axis of the other side.
Integral structure side by side is set by sequential telescopic mechanism, the coaxial setting in the end of two telescopic oil cylinders, therefore greatly
Ground reduces its occupied space, solves the problems, such as that oil cylinder installation axle is mutually blocked with adjacent oil cylinder installation axle, each valve plate installation
In oil cylinder tail portion, fluid pressure line in cantilever crane is optimized；When being used for insulating overhead operating vehicle, it is excellent that third section insulation arm may be implemented
It first stretches out, guarantees to obtain bigger effective insulation overhang under same operation amplitude.
Preferably, level-one telescopic oil cylinder is identical with the internal diameter of cylinder parameter of two-stage telescopic cylinder, cylinder rod diameter parameters are identical.
Therefore it can guarantee that speed is identical when three joint arms and two joint arms are flexible, so that being more advantageous to high altitude operation personnel carries out high-altitude work
Industry improves high-altitude working safety coefficient.
Further, the head end of level-one cylinder barrel is equipped with support wheel, and the head end of second level cylinder barrel is equipped with support plate
Support wheel is contacted with three joint arms internal cylinder, to play the role of guide support when level-one telescopic oil cylinder is flexible；
Fixed support portion due to two-stage telescopic cylinder and three joint arms without relative motion, using support plate as two-stage telescopic cylinder
Part.
It interferes, collide or rubs between level-one telescopic oil cylinder and two-stage telescopic cylinder in order to prevent, level-one cylinder barrel
Anticollision wheel I is installed on head end mounting plate and between support wheel and two-stage telescopic cylinder；Level-one telescopic oil cylinder in order to prevent
Rubs mutually, abnormal sound between three joint arms inner wall, on level-one cylinder barrel head end mounting plate and be located at support wheel and three joint arms inner wall it
Between anticollision wheel II is installed.
Further, the sequential telescopic control system includes balanced valve I, balanced valve II, electro-hydraulic ratio valve processed, electromagnetic switch
Valve, power oil pump and fuel tank, the electro-hydraulic P hydraulic fluid port than valve processed are connected to power oil pump, and T hydraulic fluid port is connected to hydraulic oil container；It is electro-hydraulic
The A hydraulic fluid port of proportioning valve is connected to the P1 hydraulic fluid port of solenoid directional control valve, and B hydraulic fluid port is connected to the P2 hydraulic fluid port of solenoid directional control valve；Electromagnetic switch
The C1 hydraulic fluid port of valve is connected to the V1 hydraulic fluid port of balanced valve I, and C2 hydraulic fluid port is connected to the V2 hydraulic fluid port of balanced valve I, C3 hydraulic fluid port and balanced valve II
The connection of V3 hydraulic fluid port, C4 hydraulic fluid port is connected to the V4 hydraulic fluid port of balanced valve II；Balanced valve I is mounted on the end face of valve plate I, balanced valve I
C5 hydraulic fluid port be connected to by valve plate I with the rodless cavity of level-one telescopic oil cylinder, and what C6 hydraulic fluid port passed through valve plate I and level-one telescopic oil cylinder has bar
Chamber connection；Balanced valve II is mounted on II end face of valve plate, and the C7 hydraulic fluid port of balanced valve II has by valve plate II and two-stage telescopic cylinder
Rod cavity connection, C8 hydraulic fluid port are connected to by valve plate II with the rodless cavity of two-stage telescopic cylinder.
Further, the tail end of basic arm is equipped with rope sensor I and rope sensor II, the drawing of rope sensor I
Rope end is connected with the tail end of two joint arms, and the drawstring end of rope sensor II is connected with the tail end of three joint arms.
Rope sensor I is used to detect the overhang of two joint arms, and rope sensor II is used to detect the overhang of three joint arms
Signal is delivered to system controller by rope sensor I and rope sensor II, controller output signal to it is electro-hydraulic than valve processed and
Solenoid directional control valve.
Three joint arms may be implemented by sequential telescopic control system preferentially to stretch out, can be obtained as insulating overhead operating vehicle
Bigger effective insulation overhang, makes the insulation performance of high altitude operation product and safety and reliability be improved significantly.
The utility model in cantilever crane by being arranged the sequential telescopic mechanism of integral type side by side, the cylinder barrel of level-one telescopic oil cylinder
Connecting shaft is shared with the cylinder rod tail portion of two-stage telescopic cylinder, and two-stage telescopic cylinder tail end installation axle is reduced to mounting plate and three
Joint arm is connected, and avoids the problem that each connecting shaft is mutually blocked, interfered, occupies little space simultaneously, compact-sized, rationally distributed；One
The cylinder barrel of grade telescopic oil cylinder is connected with the cylinder rod tail portion of two-stage telescopic cylinder, so as to realize preferentially stretching for three joint arms
Out, it will not be blocked by two joint arms, guarantee to can get maximum effective insulation overhang under same operation amplitude；Two telescopic oil cylinders
Using same parameter, guarantee that speed is not in obvious fluctuation when two joint arms and flexible three joint arms, improves high altitude operation personnel
Carry out safety coefficient when high altitude operation；Sequential telescopic control system is by electro-hydraulic than valve processed and solenoid directional control valve combination control one
Grade telescopic oil cylinder and two-stage telescopic cylinder are flexible, and can be automatic before level-one telescopic oil cylinder or two-stage telescopic cylinder are flexible in place
Carry out sequence switching ensure that the reliable flexible of sequential telescopic cantilever crane.It, can when the utility model is used for insulated type high-altitude operation vehicle
So that the insulation performance and safety and reliability of high altitude operation product are improved significantly, thus realize in high altitude platform from
Thing high-voltage electricity operating personnel carries out effective insulation protection.
Detailed description of the invention
Fig. 1 is overall structure scheme of installation in the utility model；
Fig. 2 is sequential telescopic mechanism structure schematic diagram in the utility model；
Fig. 3 is sequential telescopic control system schematic diagram in the utility model；
In figure: 1, basic arm, 2, two joint arms, 3, three joint arms, 4, level-one telescopic oil cylinder, 5, balanced valve I, 6, electric-hydraulic proportion
Valve, 7, solenoid directional control valve, 8 balanced valves II, 9, two-stage telescopic cylinder, 10, mounting base I, 11, mounting base II, 12, attachment base,
13, rectangular tube, 14, valve plate I, 15, cylinder barrel axis, 16, valve plate II, 17, level-one cylinder rod, 18, second level cylinder rod, 19, mounting plate, 20,
Second level rodless cavity, 21, level-one rodless cavity, 22, anticollision wheel I, 23, support wheel, 24, anticollision wheel II, 25, support plate, 26, axis hole,
27, stay wire sensor I, 28, stay wire sensor II.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.For the convenience of description, by Fig. 1
Left end is defined as tail end, and right end is defined as head end.
A kind of high-altitude operation vehicle sequential telescopic boom system, including basic arm 1, two joint arms 2 and three joint arms 3, in three joint arms
Be equipped with sequential telescopic mechanism, sequential telescopic mechanism driven under the action of sequential telescopic control system three joint arms 3, two joint arms 2 according to
Secondary stretching；The sequential telescopic mechanism includes the level-one telescopic oil cylinder 4 being arranged side by side and two-stage telescopic cylinder 9, the flexible oil of level-one
Cylinder 4 includes level-one cylinder barrel 21 and level-one cylinder rod 17, and two-stage telescopic cylinder 9 includes second level cylinder barrel 20 and second level cylinder rod 18, first-stage cylinder
The telescopic end of bar 17 is equipped with valve plate I 14, the internal oil passages of valve plate I 14 hydraulic fluid port with level-one cylinder barrel 21, level-one cylinder rod 17 respectively
The both ends of connection, valve plate I 14 are connected by installation axle with the mounting base 10I of 1 tail portion of basic arm；The tail end barrel of second level cylinder barrel 20
It is equipped with mounting plate 19, and is connected by mounting plate 19 with the attachment base 12 of 3 tail portion of three joint arms；The telescopic end of second level cylinder rod 18 is pacified
Equipped with valve plate II 16, the internal oil passages of valve plate II 16 are communicated with the hydraulic fluid port of second level cylinder barrel 20, second level cylinder rod 18 respectively, level-one cylinder barrel
21 tail end barrel two sides are laterally fixed with cylinder barrel axis 15, and the axis hole 26 extended transversely through, level-one cylinder barrel are offered on valve plate II 16
The cylinder barrel axis 15 of 21 barrel sides passes through above-mentioned axis hole 26, and is commonly connected to two joint arms, 2 tail portion with the cylinder barrel axis of the other side
On mounting base 11II.
Integral structure side by side is set by sequential telescopic mechanism, therefore greatly reduces its occupied space, each valve plate peace
Mounted in oil cylinder tail portion, fluid pressure line in cantilever crane is optimized；When being used for insulating overhead operating vehicle, third section insulation arm may be implemented
It is preferential to stretch out, guarantee to obtain bigger effective insulation overhang under same operation amplitude.
Preferably, level-one telescopic oil cylinder 4 is identical with the internal diameter of cylinder parameter of two-stage telescopic cylinder 9, cylinder rod diameter parameters phase
Together.Therefore it can guarantee that speed is identical when three joint arms 3 are stretched with two joint arms 2, so that being more advantageous to high altitude operation personnel carries out height
Idle job improves high-altitude working safety coefficient.
Further, the head end of level-one cylinder barrel 21 is equipped with support wheel 23, and the head end of second level cylinder barrel 20 is equipped with support plate
25。
Support wheel 23 is contacted with three joint arms internal cylinder, to play guide support work when level-one telescopic oil cylinder 4 stretches
With；Fixation due to two-stage telescopic cylinder 9 and three joint arms without relative motion, using support plate 25 as two-stage telescopic cylinder
Support member.
It interferes, collide or rubs between level-one telescopic oil cylinder 4 and two-stage telescopic cylinder 9 in order to prevent, first-stage cylinder
Anticollision wheel I 22 is installed on cylinder head end mounting plate and between support wheel 23 and two-stage telescopic cylinder 9；Level-one is stretched in order to prevent
Rubs mutually, abnormal sound between contracting oil cylinder 4 and three joint arms inner wall on level-one cylinder barrel head end mounting plate and are located at support wheel 23 and three sections
Anticollision wheel II 24 is installed between 3 inner wall of arm.
Further, the sequential telescopic control system includes balanced valve I 5, balanced valve II 8, electro-hydraulic ratio valve 6 processed, electromagnetism
Reversal valve 7, power oil pump and fuel tank, the electro-hydraulic P hydraulic fluid port than valve 6 processed are connected to power oil pump, and T hydraulic fluid port and hydraulic oil container connect
It is logical；The A hydraulic fluid port of electro-hydraulic proportional valve 6 is connected to the P1 hydraulic fluid port of solenoid directional control valve 7, and the P2 hydraulic fluid port of B hydraulic fluid port and solenoid directional control valve 7 connects
It is logical；The C1 hydraulic fluid port of solenoid directional control valve 7 is connected to the V1 hydraulic fluid port of balanced valve I 5, and C2 hydraulic fluid port is connected to the V2 hydraulic fluid port of balanced valve I 5, C3
Hydraulic fluid port is connected to the V3 hydraulic fluid port of balanced valve II 8, and C4 hydraulic fluid port is connected to the V4 hydraulic fluid port of balanced valve II 8；Balanced valve I 5 is mounted on valve plate
The C5 hydraulic fluid port of I 14 end face, balanced valve I 5 is connected to by valve plate I 14 with the rodless cavity of level-one telescopic oil cylinder 4, and C6 hydraulic fluid port passes through valve
Plate I 14 is connected to the rod chamber of level-one telescopic oil cylinder 4；Balanced valve II 8 is mounted on II 16 end face of valve plate, the C7 oil of balanced valve II 8
Mouth is connected to by valve plate II 16 with the rod chamber of two-stage telescopic cylinder 9, and C8 hydraulic fluid port passes through valve plate II 16 and two-stage telescopic cylinder 9
Rodless cavity connection.
Further, the tail end of basic arm 1 is equipped with rope sensor I 27 and rope sensor II 28, rope sensor I
27 drawstring end is connected with the tail end of two joint arms 2, and the drawstring end of rope sensor II 28 is connected with the tail end of three joint arms 3.
Rope sensor I 27 is used to detect the overhang of two joint arms 2, and rope sensor II 28 is for detecting three joint arms 3
Signal is delivered to system controller, controller output signal to electricity by overhang rope sensor I 27 and rope sensor II 28
Liquor ratio valve 6 and solenoid directional control valve 7.
Three joint arms may be implemented by sequential telescopic control system preferentially to stretch out, can be obtained as insulating overhead operating vehicle
Bigger effective insulation overhang, makes the insulation performance of high altitude operation product and safety and reliability be improved significantly.
Now this system concrete operating principle is further described:
When electro-hydraulic proportional valve 6 and solenoid directional control valve 7 commutate to right position, hydraulic oil is successively passed through electro-hydraulic ratio by power oil pump
Example valve 6, solenoid directional control valve 7, balanced valve II 8 enter two-stage telescopic cylinder 9, so that the stretching of two-stage telescopic cylinder 9 is controlled, due to
20 tail portion of second level cylinder barrel of two-stage telescopic cylinder 9 is connected by mounting plate with three joint arms 3, and the telescopic end of second level cylinder rod 18 passes through cylinder
Cylinder axis 15 is connected with level-one telescopic oil cylinder 4, therefore two-stage telescopic cylinder 9 stretches out and three joint arms 3 is driven to stretch out, while bracing wire passes
Sensor II 28 detects the overhang of three joint arms 3 or two-stage telescopic cylinder 9, when detection extend out to 95%, controller control electricity
Liquor ratio valve 6 and 7 automatic reverse of solenoid directional control valve are closed balanced valve II 8 and 9 oil circuit of two-stage telescopic cylinder, are connect simultaneously to left position
Logical 4 oil circuit of balanced valve I 5 and level-one telescopic oil cylinder, hydraulic oil successively pass through electro-hydraulic proportional valve 6, solenoid directional control valve 7, balanced valve I 5
Into level-one telescopic oil cylinder 4, to control the stretching of level-one telescopic oil cylinder 4, level-one telescopic oil cylinder 4 pulls two joint arms while stretching
2 and three joint arms 3 move simultaneously, while stay wire sensor I 27 detects the overhang of two joint arms 2 or level-one telescopic oil cylinder 4, and anti-
It is fed to system controller.
Claims (5)
1. a kind of high-altitude operation vehicle sequential telescopic boom system, including basic arm (1), two joint arms (2) and three joint arms (3), three sections
Arm is built-in with sequential telescopic mechanism, and sequential telescopic mechanism drives three joint arms (3), two sections under the action of sequential telescopic control system
Arm (2) successively stretches out；It is characterized in that, the sequential telescopic mechanism includes the level-one telescopic oil cylinder (4) being arranged side by side and second level
Telescopic oil cylinder (9), level-one telescopic oil cylinder (4) include level-one cylinder barrel (21) and level-one cylinder rod (17), and two-stage telescopic cylinder (9) includes
Second level cylinder barrel (20) and second level cylinder rod (18), the telescopic end of level-one cylinder rod (17) are equipped with valve plate I (14), valve plate I (14) it is interior
Portion's oil circuit is connected to the hydraulic fluid port of level-one cylinder barrel (21), level-one cylinder rod (17) respectively, and the both ends of valve plate I (14) pass through installation axle and base
The mounting base I (10) of this arm (1) tail portion is connected；The tail end barrel of second level cylinder barrel (20) is equipped with mounting plate (19), and passes through peace
Loading board (19) is connected with the attachment base (12) of three joint arms (3) tail portion；The telescopic end of second level cylinder rod (18) is equipped with valve plate II (16),
The internal oil passages of valve plate II (16) are communicated with the hydraulic fluid port of second level cylinder barrel (20), second level cylinder rod (18) respectively, level-one cylinder barrel (21)
Tail end barrel two sides are laterally fixed with cylinder barrel axis (15), and the axis hole (26) extended transversely through, first-stage cylinder are offered on valve plate II (16)
The cylinder barrel axis (15) of cylinder (21) barrel side passes through above-mentioned axis hole (26), and is commonly connected to two joint arms with the cylinder barrel axis of the other side
(2) on the mounting base II (11) of tail portion.
2. high-altitude operation vehicle sequential telescopic boom system according to claim 1, which is characterized in that level-one cylinder barrel (21)
Head end is equipped with support wheel (23), and the head end of second level cylinder barrel (20) is equipped with support plate (25).
3. high-altitude operation vehicle sequential telescopic boom system according to claim 2, which is characterized in that level-one cylinder barrel head end peace
Anticollision wheel I (22) is installed in loading board and between support wheel (23) and two-stage telescopic cylinder (9)；The installation of level-one cylinder barrel head end
Anticollision wheel II (24) is installed on plate and between support wheel (23) and three joint arms (3) inner wall.
4. existing according to claim 1 to high-altitude operation vehicle sequential telescopic boom system, feature described in 3 any claims
In the sequential telescopic control system includes balanced valve I (5), balanced valve II (8), electro-hydraulic proportional valve (6), solenoid directional control valve
(7), the P hydraulic fluid port of power oil pump and fuel tank, electro-hydraulic proportional valve (6) is connected to power oil pump, and T hydraulic fluid port is connected to hydraulic oil container；
The A hydraulic fluid port of electro-hydraulic proportional valve (6) is connected to the P1 hydraulic fluid port of solenoid directional control valve (7), the P2 hydraulic fluid port of B hydraulic fluid port and solenoid directional control valve (7)
Connection；The C1 hydraulic fluid port of solenoid directional control valve (7) is connected to the V1 hydraulic fluid port of balanced valve I (5), the V2 hydraulic fluid port of C2 hydraulic fluid port and balanced valve I (5)
Connection, C3 hydraulic fluid port are connected to the V3 hydraulic fluid port of balanced valve II (8), and C4 hydraulic fluid port is connected to the V4 hydraulic fluid port of balanced valve II (8)；Balanced valve I
(5) it is mounted on the end face of valve plate I (14), the C5 hydraulic fluid port of balanced valve I (5) passes through the nothing of valve plate I (14) and level-one telescopic oil cylinder (4)
Rod cavity connection, C6 hydraulic fluid port are connected to by valve plate I (14) with the rod chamber of level-one telescopic oil cylinder (4)；Balanced valve II (8) is mounted on valve
The C7 hydraulic fluid port of plate II (16) end face, balanced valve II (8) is connected to by valve plate II (16) with the rod chamber of two-stage telescopic cylinder (9),
C8 hydraulic fluid port is connected to by valve plate II (16) with the rodless cavity of two-stage telescopic cylinder (9).
5. high-altitude operation vehicle sequential telescopic boom system according to claim 4, which is characterized in that the tail of basic arm (1)
End is equipped with rope sensor I (27) and rope sensor II (28), the drawstring end and two joint arms (2) of rope sensor I (27)
Tail end be connected, the drawstring end of rope sensor II (28) is connected with the tail end of three joint arms (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272082.1U CN209651832U (en) | 2018-12-29 | 2018-12-29 | A kind of high-altitude operation vehicle sequential telescopic boom system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272082.1U CN209651832U (en) | 2018-12-29 | 2018-12-29 | A kind of high-altitude operation vehicle sequential telescopic boom system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209651832U true CN209651832U (en) | 2019-11-19 |
Family
ID=68519887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272082.1U Active CN209651832U (en) | 2018-12-29 | 2018-12-29 | A kind of high-altitude operation vehicle sequential telescopic boom system |
Country Status (1)
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| CN (1) | CN209651832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437069A (en) * | 2018-12-29 | 2019-03-08 | 徐州海伦哲特种车辆有限公司 | A kind of high-altitude operation vehicle sequential telescopic boom system |
| CN113562672A (en) * | 2021-07-28 | 2021-10-29 | 徐州海伦哲特种车辆有限公司 | Telescopic boom control device suitable for line pole comprehensive operation vehicle and operation vehicle |
-
2018
- 2018-12-29 CN CN201822272082.1U patent/CN209651832U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437069A (en) * | 2018-12-29 | 2019-03-08 | 徐州海伦哲特种车辆有限公司 | A kind of high-altitude operation vehicle sequential telescopic boom system |
| CN113562672A (en) * | 2021-07-28 | 2021-10-29 | 徐州海伦哲特种车辆有限公司 | Telescopic boom control device suitable for line pole comprehensive operation vehicle and operation vehicle |
| CN113562672B (en) * | 2021-07-28 | 2022-10-04 | 徐州海伦哲特种车辆有限公司 | Telescopic boom control device suitable for line pole comprehensive operation vehicle and operation vehicle |
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