CN201033726Y - High-lift operation vehicle - Google Patents
High-lift operation vehicle Download PDFInfo
- Publication number
- CN201033726Y CN201033726Y CNU2007201087718U CN200720108771U CN201033726Y CN 201033726 Y CN201033726 Y CN 201033726Y CN U2007201087718 U CNU2007201087718 U CN U2007201087718U CN 200720108771 U CN200720108771 U CN 200720108771U CN 201033726 Y CN201033726 Y CN 201033726Y
- Authority
- CN
- China
- Prior art keywords
- arm
- upper arm
- underarm
- pull rod
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to an overhead working truck, in particular to a folding arm or a working arm of a mixing insulate overhead working truck and a control pattern of the horizontal angle of the folding arm and the working arm, which comprises a vehicle body, an upper arm, a lower arm, a balance pull rod, a motion valve, a distant-control unloading valve, a bracket for the balance pull rod and a revolving table; wherein the lower arm, on which the upper arm is positioned, is arranged on the vehicle body; the lower arm is flexibly connected with the balance pull rod which is flexibly connected with the upper arm; an upper arm cylinder arranged on the lower arm is connected with the upper arm; a lower arm cylinder arranged on the revolving table is connected with the lower cylinder; the motion valve is arranged on the upper arm; the distant control unloading valve is arranged on the lower arm and a working hopper is arranged on the bracket for the balance pull rod. Compared with the prior art, the utility model has the advantages of full hydraulic control, high reliability, no influence on the insulation of the insulate cage and convenience for installation and trial run.
Description
Technical field:
The utility model relates to a kind of aerial platform, particularly folding arm or the working arm of hybrid insulation aerial platform and the mode of level angle thereof.
Background technology:
Folding arm of the prior art or hybrid insulation aerial platform, horizontal sextant angle of working arm all must be controlled at certain limit on it, the mode of control angle all is that one group or two groups of travel switches are set between last underarm usually, go the action of control electromagnetic valve by on-off signal, or send signal by angular transducer, the control electromagnetic valve action reaches spacing purpose.This usage is subjected to the reliability of electric elements and the influence in life-span, if when underarm is insulation arm, then can have influence on the insulativity of car load.
Summary of the invention:
Technical problem to be solved in the utility model is to overcome above shortcomings of the prior art, provides a kind of good reliability can satisfy the aerial platform of insulating requirements again.
The utility model solves the problems of the technologies described above the technical scheme of being taked: this aerial platform, comprise vehicle body, it is characterized in that being provided with upper arm, underarm, balancing pull rod, the stroke valve, control unloader valve far away, balancing pull rod bearing and turntable, turntable, underarm is installed on the vehicle body, underarm and turntable are hinged, upper arm is installed on the underarm, underarm and balancing pull rod flexibly connect, balancing pull rod and upper arm flexibly connect, the upper arm oil cylinder is installed on the underarm and with upper arm and is connected, and the underarm oil cylinder is installed on the turntable and with underarm and is connected, and the stroke valve is installed on the upper arm, control unloader valve far away is installed on the underarm, and the work bucket is installed on the balancing pull rod bearing.
The utility model work bucket is provided with the top operating valve, and turntable is provided with the bottom operating valve.
The utility model is equipped with the one stroke valve by the upper arm afterbody, the trip valve comes the switch of control travel valve by the swing of balancing pull rod bearing, control the action of the control off-load far away of upper arm, underarm again by the on off state of stroke valve, reach the spacing purpose of working arm angle.Mode of the present utility model adds unloader valve for the stroke valve.
The utility model compared with prior art has the following advantages: realize all-hydraulic control, increase the spacing reliability of angle, satisfy the voltage withstand requirement of insulation car fully.
Secondary figure explanation:
Fig. 1 is the structural representation of the utility model embodiment aerial platform.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the schematic diagram of the utility model embodiment working arm hydraulic efficiency pressure system.
The specific embodiment:
Referring to Fig. 1～Fig. 3, the utility model embodiment aerial platform comprises upper arm 12, underarm 15, balancing pull rod 14, stroke valve 9, control unloader valve 10 far away, balancing pull rod bearing 8 and turntable 4, turntable 4, underarm 15 is installed on the vehicle body, underarm 15 is hinged with turntable 4, upper arm 12 is installed on the underarm 15, underarm 15 flexibly connects with balancing pull rod 14, balancing pull rod 14 flexibly connects with upper arm 12, upper arm oil cylinder 13 is installed on the underarm 15 and with upper arm 12 and is connected, underarm oil cylinder 11 is installed on the turntable 4 and with underarm 15 and is connected, stroke valve 9 is installed on the upper arm 12, control unloader valve 10 far away is installed on the underarm 15, work bucket 6 is installed on the balancing pull rod bearing 8, and work bucket 6 is provided with top operating valve 7, and turntable 4 is provided with bottom operating valve 5.
Principle of work:
When upper arm 12 rose, upper arm 12 can not surpass the scope of setting with the angle of horizontal surface, when surpassing setting range, must stop vertical motion automatically, require the underarm 15 can not be simultaneously, otherwise have influence on the stability of car load, cause serious accident easily to decline.At this moment, remove to touch stroke valve 9 by balancing pull rod bearing 8 (balancing pull rod bearing 8 is in horizontality all the time), stroke valve 9 is opened, after stroke valve 9 is opened, the control mouth far away of control unloader valve 10 far away is just identical with oil return line, make control unloader valve 10 far away be in unloading condition, make upper arm oil cylinder control cock 131, the oil pressure in 111 liang of chambeies of underarm oil cylinder control cock obtains discharging, make upper arm 12 not rise, underarm 15 can not fall, and stops in the safe range, can only reversing sense (secure side to) action, thereby realize all-hydraulic control, increase the spacing reliability of angle, satisfy the voltage withstand requirement of insulation car fully.
Claims (2)
1. aerial platform, comprise vehicle body, it is characterized in that: be provided with upper arm, underarm, balancing pull rod, the stroke valve, control unloader valve far away, balancing pull rod bearing and turntable, turntable, underarm is installed on the vehicle body, underarm and turntable are hinged, upper arm is installed on the underarm, underarm and balancing pull rod flexibly connect, balancing pull rod and upper arm flexibly connect, the upper arm oil cylinder is installed on the underarm and with upper arm and is connected, and the underarm oil cylinder is installed on the turntable and with underarm and is connected, and the stroke valve is installed on the upper arm, control unloader valve far away is installed on the underarm, and the work bucket is installed on the balancing pull rod bearing.
2. aerial platform according to claim 1 is characterized in that: the work bucket is provided with the top operating valve, and turntable is provided with the bottom operating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087718U CN201033726Y (en) | 2007-04-29 | 2007-04-29 | High-lift operation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087718U CN201033726Y (en) | 2007-04-29 | 2007-04-29 | High-lift operation vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201033726Y true CN201033726Y (en) | 2008-03-12 |
Family
ID=39194618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201087718U Expired - Lifetime CN201033726Y (en) | 2007-04-29 | 2007-04-29 | High-lift operation vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201033726Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467032A (en) * | 2018-09-28 | 2019-03-15 | 陈良财 | The field electric work car illuminated using sun thermoelectric power generation insect prevention |
-
2007
- 2007-04-29 CN CNU2007201087718U patent/CN201033726Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467032A (en) * | 2018-09-28 | 2019-03-15 | 陈良财 | The field electric work car illuminated using sun thermoelectric power generation insect prevention |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |