CN206592361U - Insulation with amplitude limit control valve folds arm high-altitude operation vehicle - Google Patents
Insulation with amplitude limit control valve folds arm high-altitude operation vehicle Download PDFInfo
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- CN206592361U CN206592361U CN201621416473.0U CN201621416473U CN206592361U CN 206592361 U CN206592361 U CN 206592361U CN 201621416473 U CN201621416473 U CN 201621416473U CN 206592361 U CN206592361 U CN 206592361U
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- 238000009413 insulation Methods 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 73
- 230000006872 improvement Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 230000000670 limiting effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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Abstract
Arm high-altitude operation vehicle is folded the utility model discloses a kind of insulation with amplitude limit control valve, amplitude limit control valve is arranged in two joint arms, including mounting base, valve body, valve pocket；Valve body includes the first actuator port C, the second actuator port D in lateral location and the control port E connected with the first actuator port C and the second actuator port D in top side location, control port E perpendicular to the first actuator port C, tilt down in the second actuator port D, and valve pocket is connected with control port E, provided with blind hole oil pocket, blind hole oil pocket inside provided with the steel ball coordinated with it inside valve pocket.There is the insulation folding arm high-altitude operation vehicle of amplitude limit control valve the oil circuit between steel ball opening or closure the first actuator port C and the second actuator port D is realized by change in location of the steel ball in blind hole oil pocket for this, the automatic amplitude limit of foldable arm rack is realized on the premise of without laying amplitude limit electric elements on upper insulation foldable arm rack, insulation is particularly suitable for use in and folds arm high-altitude operation vehicle.
Description
Technical field
The utility model is related to a kind of insulation and folds arm high-altitude operation vehicle, specifically a kind of insulation with amplitude limit control valve
Arm high-altitude operation vehicle is folded, belongs to high-altitude operation vehicle technical field.
Background technology
High-altitude operation vehicle is that the equipment transported staff and be pointed to high-altitude using equipment to high-altitude is installed, tieed up
Shield, the special vehicle of cleaning, with transaction capabilities are good, operation with traditional operating type such as scaffolding, ladder compared with
The advantages of efficiency high, job safety, it is now widely used for the infrastructure industry such as electric power, traffic, petrochemical industry, communication, gardens.
Current high-altitude operation vehicle is generally divided into three classes by arm support type：Aerial work platform truck with foldable arm, telescopic boom high-altitude
Operation Van and the arm-type high-altitude operation vehicle of mixing being made up of telescopic arm and folding arm, due to folding arm high-altitude operation vehicle operation spirit
Live, be applicable multifarious operating mode, be easy to across obstacle arrival operating position, therefore application is more universal, folds arm work high above the ground
The lifting mechanism of getting on the bus of car is generally folded by more piece box-shaped arm to be formed, and can be divided into folding and lower folding, the folding of each joint arm and
Deploy to be completed by the hydraulic cylinder of each internode.
With economic and society development, people improve constantly to the maintenance of supply of electric power and the requirement of quick response, energy
Enough quick responses simultaneously have the insulating overhead operating vehicle of livewire work function in the industry extensive use such as electric power, telecommunications；Insulation is high
The usual external coating insulated paint of idle job car, using insulating properties hydraulic oil, and according to rated voltage be divided into 10kv, 35kv, 63kv,
The classes of insulation such as 110kv, 220kv.
Insulating overhead operating vehicle is improves transaction capabilities and operational security, generally using folding arm support form, its
Arm support bottom uses the folding arm with supplementary insulation section, and top uses the folding arm at major insulation end, and the class of insulation is mainly pin
To major insulation end；Because lower folded arm carries the reason of insulating end, therefore upper portion insulating folds arm and is difficult to install electronics biography
Sensor enters the real-time monitoring of line amplitude control to arm support job state, arm insulating overhead operating vehicle is folded at present is directed to insulation arm
There is no amplitude limitation function, typically operating personnel rule of thumb carry out artificial judgment, manual control arm on workbench
Frame across obstacle or the safe action for avoiding barrier operation, this only relies on the operating experience progress safe action by means of operating personnel
There is potential safety hazard, if operating personnel are not yet done to field working conditions or Operation Van's operation whole vehicle stability can be caused to decline, endanger
Danger even car body is tumbled.
The content of the invention
In view of the above-mentioned problems, the utility model provide it is a kind of with amplitude limit control valve insulation folding arm high-altitude operation vehicle and
Amplitude limit method, can be without realizing foldable arm rack automatic limiting on upper insulation foldable arm rack on the premise of laying amplitude limit electric elements
Width, and then the stability for ensureing vehicle is realized, it is particularly suitable for use in insulation and folds arm high-altitude operation vehicle.
To achieve the above object, there is the insulation of amplitude limit control valve to fold arm high-altitude operation vehicle and include bodywork assembly, turn for this
Platform, foldable arm rack assembly, insulation job platform and control valve group；Foldable arm rack assembly, which includes being hinged with turntable, installs be connected one
Joint arm and two joint arms being articulated and connected with a joint arm；One joint arm is provided with supplementary insulation section；Two joint arms are provided with major insulation end, main
Insulating end is installed with insulation job platform by self-level(l)ing device and is connected；
Described control valve group includes amplitude limit control valve, reversal valve, balanced valve；
Amplitude limit control valve is arranged in two joint arms, including mounting base, valve body, valve pocket；Valve body is fixed by mounting base
In two joint arms, the lateral location of valve body is provided with the second actuator port D, and the top side location of valve body is provided with the first work
On hydraulic fluid port C, valve body perpendicular to the first actuator port C, tilt down in the second actuator port D inclined side position be provided with
The control port E of first actuator port C and the second actuator port D connections, control port E are connected through a screw thread with valve pocket；Valve pocket
It is internal to be connected along perforate end of its axial direction provided with blind hole oil pocket and blind hole oil pocket with control port E, set inside blind hole oil pocket
There is the steel ball coordinated with its internal diameter size, and the diameter dimension of steel ball is more than the first actuator port C and the second actuator port D
The diameter dimension of diameter dimension, steel ball in the passage of valve inner is more than connection the first actuator port C and the second actuator port D
Control port E be located at valve inner passage diameter dimension, and steel ball be located at blind hole oil pocket perforate end position when in envelope
Stifled control port E between first actuator port C and the second actuator port D is located at the position of the passage of valve inner, blind hole oil
The multiple Oil Guides extended inside along blind hole oil pocket axial direction to blind hole oil pocket are additionally provided with the inner surface of the perforate end position of chamber
Groove；
Described reversal valve is arranged on turntable；Described balanced valve is mounted on two between a joint arm and two joint arms
In joint arm amplitude oil cylinder；
First actuator port C of described amplitude limit control valve is connected by one actuator port A of flexible insulated hose and reversal valve,
Second actuator port D of amplitude limit control valve is connected by flexible insulated hose and the rodless cavity hydraulic fluid port of two joint arm amplitude oil cylinders by balanced valve
Connect；Another actuator port B of reversal valve passes through balanced valve by the rod chamber hydraulic fluid port of flexible insulated hose and two joint arm amplitude oil cylinders
Connection.
As further improvement of the utility model scheme, described valve body is fixedly mounted on the middle part of mounting base, peace
Bottom plate is filled relative to the arc that the side of valve body is provided with mounting hole, the opposite side relative to valve body is provided with using mounting hole as the center of circle to pacify
Fill groove.
As further improvement of the utility model scheme, the perforate end end face of described multiple oil guide grooves along blind hole oil pocket
Circumference uniform distribution is set.
As further improvement of the utility model scheme, the installation external screw thread of the perforate end position of described blind hole oil pocket
It is provided with locking nut.
As further improvement of the utility model scheme, the outer surface of described valve pocket is axially arranged into just polygon along its
Shape structure.
Compared with prior art, the valve of the amplitude limit control valve of this insulation folding arm high-altitude operation vehicle with amplitude limit control valve
Body due to including the first actuator port C in top side location, the second actuator port D in lateral location and with the first actuator port
C and the second actuator port D connection control port E, control port E perpendicular to the first actuator port C, tilt down in the second work
Make hydraulic fluid port D, and valve pocket is connected with control port E, coordinate inside valve pocket with it provided with being provided with inside blind hole oil pocket, blind hole oil pocket
Steel ball, thus by amplitude limit control valve location and installation in two joint arms after, with two joint arm luffings rise the elevation angle change, valve pocket
Axis with respect to the horizontal plane between angle be gradually decrease to horizontal zero angle, valve pocket and be gradually changed into level from tilting down state
State, two joint arms continue rise when valve pocket axis with respect to the horizontal plane between angle then opposite direction gradually increase, valve pocket by
Opposite direction is gradually changed into from horizontality and tilts down state, by under the collective effect of pressure oil and self gravitation steel ball blind
Change in location in the oil pocket of hole is realized between the first actuator port C and the second actuator port D of steel ball opening or closure valve body
Oil circuit, the automatic amplitude limit that is implemented in combination with of mechanical structure and hydraulic system, simple in construction, control are passed through using the self gravitation of steel ball
Stability that is convenient, ensureing vehicle, the Limiting effect of this mechanical structure is stable compared with the Limiting effect of electrical feedback formula structure, and nothing
Amplitude limit electric elements need to be laid on upper insulation foldable arm rack, be particularly suitable for use in insulation and fold arm high-altitude operation vehicle.
Brief description of the drawings
Fig. 1 is that there is insulating for amplitude limit control valve to fold the structural representation of arm high-altitude operation vehicle for this；
Fig. 2 is hydraulic schematic diagram of the present utility model；
Fig. 3 is the three dimensional structure diagram of the utility model amplitude limit control valve；
Fig. 4 is the structural representation of the utility model amplitude limit control valve；
Fig. 5 is the structural representation of the utility model valve body；
Fig. 6 is the structural representation of the utility model valve pocket；
Fig. 7 is Fig. 6 left view.
In figure：1st, a joint arm, 11, supplementary insulation section, 2, two joint arms, 21, major insulation end, 3, amplitude limit control valve, 31, install
Bottom plate, 311, mounting hole, 312, arc groove is installed, 32, valve body, 33, valve pocket, 331, blind hole oil pocket, 332, steel ball, 333, lead
Oil groove, 4, reversal valve, 5, balanced valve, 6, two joint arm amplitude oil cylinders；
First actuator port of C- valve bodies 32；
Second actuator port of D- valve bodies 32；
The control port of E- valve bodies 32；
The actuator port of A, B, P, T- reversal valve 4.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, there is the insulation of amplitude limit control valve, which to fold arm high-altitude operation vehicle, for this includes bodywork assembly, turntable, folding
Folded arm support assembly, insulation job platform and control valve group.
Described foldable arm rack assembly, which includes being hinged with turntable, to be installed the joint arm 1 being connected and is articulated and connected with a joint arm 1
Two joint arms 2；One joint arm 1 is provided with supplementary insulation section 11；Two joint arms 2 are provided with major insulation end 21, and major insulation end 21 passes through certainly
Dynamic levelling device is installed with insulation job platform and is connected.
Described control valve group includes amplitude limit control valve 3, reversal valve 4, balanced valve 5.
Amplitude limit control valve 3 is arranged in two joint arms 2, as shown in Figure 3, Figure 4, including mounting base 31, valve body 32, valve pocket
33；Valve body 32 is fixedly mounted in two joint arms 2 by mounting base 31, and the lateral location of valve body 32 is provided with the second actuator port
D, the top side location of valve body 32 is provided with the first actuator port C, as shown in figure 5, on valve body 32 perpendicular to the first actuator port C,
Tilt down to be provided with the second actuator port D inclined side position and connected with the first actuator port C and the second actuator port D
Control port E, control port E is connected through a screw thread with valve pocket 33；As shown in fig. 6, being set inside valve pocket 33 along its axial direction
The perforate end for having blind hole oil pocket 331 and blind hole oil pocket 331 is connected with control port E, the inside of blind hole oil pocket 331 be provided with it
The steel ball 332 of footpath dimensional fits, and the diameter dimension of steel ball 332 is more than the first actuator port C and the second actuator port D positioned at valve
The diameter dimension of passage inside body 32, the diameter dimension of steel ball 332 are more than the first actuator port C of connection and the second actuator port
D control port E is located at the diameter dimension of the passage inside valve body 32, and steel ball 332 can be in blind hole oil pocket 331 in axial direction
It is mobile, and steel ball 332 when being located at 331 perforate end position of blind hole oil pocket in closure the first actuator port C and the second actuator port D
Between control port E be located at the position of the passage inside valve body 32, on the inner surface of the perforate end position of blind hole oil pocket 331 and also
Provided with the multiple oil guide grooves 333 extended inside along the axial direction of blind hole oil pocket 331 to blind hole oil pocket 331.
Described reversal valve 4 is arranged on turntable.
Described balanced valve 5 is mounted in two joint arm amplitude oil cylinders 6 between a joint arm 1 and two joint arms 2.
As shown in Fig. 2 the first actuator port C of amplitude limit control valve 3 passes through flexible insulated hose and 4 one actuator ports of reversal valve
A is connected, and the second actuator port D of amplitude limit control valve 3 is logical by flexible insulated hose and the rodless cavity hydraulic fluid port of two joint arm amplitude oil cylinders 6
Overbalance valve 5 is connected；Another actuator port B of reversal valve 4 passes through flexible insulated hose and the rod chamber of two joint arm amplitude oil cylinders 6 oil
Mouth is connected by balanced valve 5.
There is the insulation of amplitude limit control valve to fold arm high-altitude operation vehicle during two joint arms 2 rise luffing operation for this, such as
Shown in Fig. 2, operation reversal valve 4 is in the first commutation position, and pressure oil circuit is connected with the rodless cavity of two joint arm amplitude oil cylinders 6, presses
Power oil stretches out two joint arm amplitude oil cylinders 6 into the rodless cavity of two joint arm amplitude oil cylinders 6, the luffing of two joint arm 2 rises, with two sections
The change at the elevation angle of arm 2, amplitude limit control valve 3, valve pocket 33 setting diagonally downward axis in two joint arms 2 relative to
Angle between horizontal plane also changes, i.e. the axis of valve pocket 33 with respect to the horizontal plane between angle follow two joint arms 2
Rise change angle change is gradually decrease to horizontal zero angle, valve pocket 33 and is gradually changed into horizontality, two from tilting down state
Joint arm 2 continue rise when valve pocket 33 axis with respect to the horizontal plane between angle continue opposite direction gradually increase, valve pocket 33 by
Opposite direction is gradually changed into from horizontality and tilts down state.
When valve pocket 33 axis with respect to the horizontal plane between angle be in negative angle when, the first working oil of amplitude limit control valve 3
Mouth C is communicated with the second actuator port D hydraulic circuits, while pressure oil is full of in the bore of valve pocket 33, in pressure oil and itself weight
Steel ball 332 is located at the bottom of blind hole oil pocket 331 under the collective effect of power, and A mouth of the pressure oil circuit through reversal valve 4 passes sequentially through amplitude limit
Enter the rodless cavity of two joint arm amplitude oil cylinders 6, liquid after first actuator port C of control valve 3, the second actuator port D, balanced valve 5
Force feed, which promotes the piston rod of two joint arm amplitude oil cylinders 6 to stretch out, rises two joint arms 2, hydraulic pressure in the rod chamber of two joint arm amplitude oil cylinder 6
The oily B mouth oil return boxes through balanced valve 5, reversal valve 4；With the change at the elevation angle of two joint arm 2, when the axis of valve pocket 33 is relative to level
When angle between face is changed into positive acute angle from horizontal zero degree Angle Position, pressure oil can enter steel ball 332 by oil guide groove 333
Rear portion, steel ball 332 moves down along blind hole oil pocket 331 and seals valve body 32 under the collective effect of pressure oil and self gravitation
Oil circuit between first actuator port C and the second actuator port D, two joint arm amplitude oil cylinders 6 stop extending action, realize automatic
Amplitude limit.
When needing to carry out range of decrease operation to two joint arms 2, operation reversal valve 4 makes pressure oil by B mouths of reversal valve 4, put down
The hydraulic oil that the valve 5 that weighs enters in the rod chamber of two joint arm amplitude oil cylinders 6, the rodless cavity of two joint arm amplitude oil cylinder 6 enters through balanced valve 5
Enter the second actuator port D of the valve body 32 of amplitude limit control valve 3, first work of the steel ball 332 from valve body 32 is opened on pressure oil directly top
Hydraulic fluid port C by the oil return box of reversal valve 4, realizes retraction, the action of the range of decrease of two joint arm 2 of two joint arm amplitude oil cylinders 6 again.
When being easy to original state to realize adjust valve pocket 33 axis with respect to the horizontal plane between angle, and then realize
The elevation angle of two joint arms 2 when being easy to adjust automatic amplitude limit, as further improvement of the utility model scheme, as shown in Figure 4, Figure 5,
Described valve body 32 is fixedly mounted on the middle part of mounting base 31, and mounting base 31 is provided with mounting hole relative to the side of valve body 32
311st, the opposite side relative to valve body 32 is provided with installs groove 312 with mounting hole 311 for the arc in the center of circle, is pacified by adjusting arc
Dress groove 312 can realize the peace for adjusting mounting base 31 in a big way around the different angle location and installation positions of mounting hole 311
Dress, and then realize the elevation angle of two joint arms 2 when being easy to adjust automatic amplitude limit.
In order to ensure pressure oil uniformly through oil guide groove 333 enter steel ball 332 rear portion, as it is of the present utility model enter one
Improvement project is walked, as shown in fig. 7, perforate end end face circumference uniform distribution of the described multiple oil guide grooves 333 along blind hole oil pocket 331 is set
Put.
It is located at the position at the perforate end of blind hole oil pocket 331 for the ease of fine setting steel ball 332, and then realizes the effectively place of steel ball 332
It is located at the position of the passage inside valve body 32 in closure control port E, it is described as further improvement of the utility model scheme
Blind hole oil pocket 331 perforate end position installation external screw thread be provided with locking nut, by the axle for adjusting suitable valve pocket 33
Envelope when fine setting steel ball 332 can be achieved positioned at 331 perforate end of blind hole oil pocket in positioning is carried out to installation site and by tightening nut
Stifled position.
For the ease of valve pocket 33 is threadably mounted on valve body 32, as further improvement of the utility model scheme, such as
Shown in Fig. 7, the outer surface of described valve pocket 33 is axially arranged into regular polygon structure along its.
This has the valve body 32 of the amplitude limit control valve 3 of the insulation folding arm high-altitude operation vehicle of amplitude limit control valve due to including top
The second actuator port D on the first actuator port C, lateral location on the position of face and worked with the first actuator port C and second
Hydraulic fluid port D connection control port E, control port E perpendicular to the first actuator port C, tilt down in the second actuator port D, and
Valve pocket 33 is connected with control port E, and the inside of valve pocket 33 is provided with provided with blind hole oil pocket 331, the inside of blind hole oil pocket 331 to be coordinated with it
Steel ball 332, thus by the location and installation of amplitude limit control valve 3 in two joint arms 2 after, with the luffing of two joint arm 2 rise the elevation angle change,
The axis of valve pocket 33 with respect to the horizontal plane between angle to be gradually decrease to horizontal zero angle, valve pocket 33 gradually ramp-like by dipping down
State is changed into horizontality, when two joint arms 2 continue to rise the axis of valve pocket 33 with respect to the horizontal plane between angle then opposite direction by
Cumulative big, valve pocket 33 is gradually changed into opposite direction from horizontality and tilts down state, passes through being total in pressure oil and self gravitation
Change in location of the steel ball 332 in blind hole oil pocket 331 realizes that the first work of valve body 32 is opened or blocked to steel ball 332 under same-action
Make the oil circuit between hydraulic fluid port C and the second actuator port D, the self gravitation using steel ball 332 passes through mechanical structure and hydraulic system
Be implemented in combination with automatic amplitude limit, stability that is simple in construction, easy to control, ensureing vehicle, the Limiting effect of this mechanical structure compared with
The Limiting effect of electrical feedback formula structure is stable, and without laying amplitude limit electric elements on upper insulation foldable arm rack, especially fits
Arm high-altitude operation vehicle is folded for insulating.
Claims (5)
1. a kind of insulation folding arm high-altitude operation vehicle with amplitude limit control valve, including bodywork assembly, turntable, foldable arm rack are total
Into, insulation job platform and control valve group；Foldable arm rack assembly, which includes being hinged with turntable, installs the joint arm (1) that is connected and with one
Two joint arms (2) that joint arm (1) is articulated and connected；One joint arm (1) is provided with supplementary insulation section (11)；Two joint arms (2) are provided with main exhausted
Acies (21), major insulation end (21) are installed with insulation job platform by self-level(l)ing device and are connected；Characterized in that,
Described control valve group includes amplitude limit control valve (3), reversal valve (4), balanced valve (5)；
Amplitude limit control valve (3) is arranged in two joint arms (2), including mounting base (31), valve body (32), valve pocket (33)；Valve body
(32) it is fixedly mounted on by mounting base (31) in two joint arms (2), the lateral location of valve body (32) is provided with the second working oil
Mouth D, the top side location of valve body (32) is provided with the first actuator port C, valve body (32) perpendicular to the first actuator port C, downwards
The inclined side position for favouring the second actuator port D is provided with the control connected with the first actuator port C and the second actuator port D
Liquefaction mouthful E, control port E are connected through a screw thread with valve pocket (33)；Valve pocket (33) is internal to be provided with blind hole oil pocket along its axial direction
(331) and the perforate end of blind hole oil pocket (331) is connected with control port E, it is provided with and its internal diameter chi inside blind hole oil pocket (331)
The steel ball (332) of very little cooperation, and the diameter dimension of steel ball (332) is more than the first actuator port C and the second actuator port D positioned at valve
The diameter dimension of the internal passage of body (32), the diameter dimension of steel ball (332) are more than the work of the first actuator port C of connection and second
Hydraulic fluid port D control port E is located at the diameter dimension of the internal passage of valve body (32), and steel ball (332) is located at blind hole oil pocket (331)
Control port E during perforate end position between closure the first actuator port C and the second actuator port D is located in valve body (32)
It is additionally provided with the position of the passage in portion, the inner surface of the perforate end position of blind hole oil pocket (331) along blind hole oil pocket (331) axial direction side
To multiple oil guide grooves (333) to extension inside blind hole oil pocket (331)；
Described reversal valve (4) is arranged on turntable；Described balanced valve (5) is mounted on a joint arm (1) and two joint arms (2)
Between two joint arm amplitude oil cylinders (6) on；
First actuator port C of described amplitude limit control valve (3) is connected by (4) actuator port A of flexible insulated hose and reversal valve
Logical, the second actuator port D of amplitude limit control valve (3) is logical by flexible insulated hose and the rodless cavity hydraulic fluid port of two joint arm amplitude oil cylinders (6)
Overbalance valve (5) is connected；Another actuator port B of reversal valve (4) has by flexible insulated hose and two joint arm amplitude oil cylinder (6)
Rod cavity hydraulic fluid port is connected by balanced valve (5).
2. the insulation according to claim 1 with amplitude limit control valve folds arm high-altitude operation vehicle, it is characterised in that described
Valve body (32) be fixedly mounted on the middle parts of mounting base (31), mounting base (31) relative to valve body (32) side provided with peace
Dress hole (311), the opposite side relative to valve body (32) are provided with installs groove (312) with mounting hole (311) for the arc in the center of circle.
3. the insulation according to claim 1 or 2 with amplitude limit control valve folds arm high-altitude operation vehicle, it is characterised in that
Perforate end end face circumference uniform distribution of the described multiple oil guide grooves (333) along blind hole oil pocket (331) is set.
4. the insulation according to claim 1 or 2 with amplitude limit control valve folds arm high-altitude operation vehicle, it is characterised in that
The installation external screw thread of the perforate end position of described blind hole oil pocket (331) is provided with locking nut.
5. the insulation according to claim 1 or 2 with amplitude limit control valve folds arm high-altitude operation vehicle, it is characterised in that
The outer surface of described valve pocket (33) is axially arranged into regular polygon structure along its.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416473.0U CN206592361U (en) | 2016-12-22 | 2016-12-22 | Insulation with amplitude limit control valve folds arm high-altitude operation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416473.0U CN206592361U (en) | 2016-12-22 | 2016-12-22 | Insulation with amplitude limit control valve folds arm high-altitude operation vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592361U true CN206592361U (en) | 2017-10-27 |
Family
ID=60131150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621416473.0U Expired - Fee Related CN206592361U (en) | 2016-12-22 | 2016-12-22 | Insulation with amplitude limit control valve folds arm high-altitude operation vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592361U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672870A (en) * | 2016-12-22 | 2017-05-17 | 徐州海伦哲专用车辆股份有限公司 | Insulated folding arm high-altitude operation car with amplitude limiting control valve and amplitude limiting method |
| CN108150088A (en) * | 2017-12-13 | 2018-06-12 | 佛山尉达科技有限公司 | Rescue ladder |
| CN108190806A (en) * | 2017-12-13 | 2018-06-22 | 佛山尉达科技有限公司 | Rescue aid |
| CN110921591A (en) * | 2019-12-27 | 2020-03-27 | 徐州海伦哲特种车辆有限公司 | Leveling system with insulating and anti-tipping functions |
-
2016
- 2016-12-22 CN CN201621416473.0U patent/CN206592361U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672870A (en) * | 2016-12-22 | 2017-05-17 | 徐州海伦哲专用车辆股份有限公司 | Insulated folding arm high-altitude operation car with amplitude limiting control valve and amplitude limiting method |
| CN106672870B (en) * | 2016-12-22 | 2022-05-17 | 徐州海伦哲专用车辆股份有限公司 | Insulated folding arm high-altitude operation vehicle with amplitude limiting control valve and amplitude limiting method |
| CN108150088A (en) * | 2017-12-13 | 2018-06-12 | 佛山尉达科技有限公司 | Rescue ladder |
| CN108190806A (en) * | 2017-12-13 | 2018-06-22 | 佛山尉达科技有限公司 | Rescue aid |
| CN110921591A (en) * | 2019-12-27 | 2020-03-27 | 徐州海伦哲特种车辆有限公司 | Leveling system with insulating and anti-tipping functions |
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