CN202911491U - Integrally-controlled type autorail - Google Patents
Integrally-controlled type autorail Download PDFInfo
- Publication number
- CN202911491U CN202911491U CN 201220644413 CN201220644413U CN202911491U CN 202911491 U CN202911491 U CN 202911491U CN 201220644413 CN201220644413 CN 201220644413 CN 201220644413 U CN201220644413 U CN 201220644413U CN 202911491 U CN202911491 U CN 202911491U
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- hinged
- arm
- autorail
- sprocket wheel
- leveling cyclinder
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Abstract
The utility model provides an integrally-controlled type autorail which comprises a frame, wheels, a guide wheel and an aerial work platform. The wheels are arranged on the frame, the guide wheel is connected on the frame through a lifting frame, a lifting oil cylinder is arranged between the lifting frame and the frame, the aerial work platform comprises a returning platform, a base seat, a telescopic arm, a foldable arm, a drive oil cylinder and a work funnel, and further comprises an electronic controlling unit and a hydraulic system, the hydraulic system comprises an oil tank, a variable plunger pump and two load-sensitive multi-way valves, and the load-sensitive oil paths of the two load-sensitive multi-way valves are connected with the load-sensitive valves of the variable plunger pump through a shuttle valve. The load-sensitive multi-way valves and the variable plunger pump are respectively connected with the electronic controlling unit through a controller area network (CAN) bus. The lifting oil cylinder is connected with one of the load-sensitive multi-way valves, and the drive oil cylinder is connected with the other load-sensitive multi-way valve. The integrate control of the autorail is achieved, and reliably of the autorail is improved.
Description
Technical field
The utility model relates to autorail, relates in particular to a kind of integrated control mode autorail.
Background technology
At present, autorail both can travel at highway because of it, can move at railway again, was widely used in the rail transport industry, the autorail operation such as be generally used for rail traction, repairing, construct and speedily carry out rescue work.Autorail of the prior art mostly is and simply installs railway track adjusting wheel and high-altitude operation platform additional on original car chassis, then by the track adjusting wheel lifting of Control railway and aloft work action partly.Autorail various piece electric system is separate, and all by Control, integrated level is low, and system reliability is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of integrated control mode autorail is provided, the integrated level that solves autorail of the prior art is low, the defective that system reliability is relatively poor realizes the integrated control of autorail, improves its reliability.
The technical scheme that the utility model provides is, a kind of integrated control mode autorail, comprise vehicle frame, wheel, track adjusting wheel and high-altitude operation platform, described wheel is arranged on the described vehicle frame, described track adjusting wheel is connected on the vehicle frame by crane, be provided with hoist cylinder between described crane and the described vehicle frame, described high-altitude operation platform comprises turn table, base, telescopic boom, folding arm, drive oil cylinder and working bucket, the fixed arm of described telescopic boom is hinged on the described base, one end of described folding arm is hinged on the travelling arm of described telescopic boom, described working bucket is hinged on the other end of described folding arm, one end of described driving oil cylinder is hinged on the described base, the other end of described driving oil cylinder is hinged on the middle part of described fixed arm, described base is fixed on the described turn table, described turn table is assemblied on the described vehicle frame, also comprise electronic control unit and hydraulic efficiency pressure system, described hydraulic efficiency pressure system comprises fuel tank, Variable plunger pump and two load sensing multi-way valves, the import of described Variable plunger pump is connected with described fuel tank, described variable piston delivery side of pump is connected with the oil inlet of described load sensing multi-way valve, and the load-sensing oil circuit of two described load sensing multi-way valves is connected with the load-sensitive valve of described Variable plunger pump by shuttle valve; Described load sensing multi-way valve be connected Variable plunger pump and be connected with described electronic control unit by the CAN bus respectively; Described hoist cylinder is connected with a described load sensing multi-way valve wherein, and described driving oil cylinder is connected with another described load sensing multi-way valve.
Aforesaid integrated control mode autorail also comprises jury pump and motor, and described motor drives with described jury pump and is connected, and the import of described jury pump is connected with described fuel tank; Described variable piston delivery side of pump is connected with the oil inlet of described load sensing multi-way valve by the first check valve, described emergent delivery side of pump is connected with the oil inlet of described load sensing multi-way valve by the second check valve, and described motor is connected with described electronic control unit by the CAN bus.
Aforesaid integrated control mode autorail also is provided with lower leveling cyclinder between described fixed arm and the described base, and an end and the described fixed arm of described lower leveling cyclinder are hinged, and the other end of described lower leveling cyclinder and described base are hinged; Also be provided with leveling cyclinder between described travelling arm and the described folding arm, one end and the described travelling arm of described upper leveling cyclinder are hinged, the rod chamber body of described lower leveling cyclinder is connected with the rod chamber body of described upper leveling cyclinder, and the rodless cavity body of described lower leveling cyclinder is connected with the rodless cavity body of described upper leveling cyclinder; The hinged place of described folding arm and described travelling arm also is hinged with the first sprocket wheel, the edge of the other end of described upper leveling cyclinder and described the first sprocket wheel is hinged, the hinged place of described folding arm and described working bucket is provided with the second sprocket wheel, described the second sprocket wheel is fixed on the described working bucket, be provided with chain between described the first sprocket wheel and described the second sprocket wheel, and described the first sprocket wheel is identical with described the second sprocket wheel; Distance between the hinged place of the distance between the hinged place of the hinged place of described fixed arm and described base and described fixed arm and described lower leveling cyclinder, the hinged place that equals described the first sprocket wheel and described travelling arm and described the first sprocket wheel and described upper leveling cyclinder.
Aforesaid integrated control mode autorail, be provided with the rotating shaft of vertical setting on the described working bucket, be provided with mounting bracket in the described rotating shaft, described mounting bracket is hinged on the described folding arm, and described the second sprocket wheel is arranged on the hinged place of described folding arm and described mounting bracket; Be provided with bearing pin on the described mounting bracket, described bearing pin and described shaft parallel are provided with push cylinder on the described working bucket, and an end of described push cylinder is hinged on the described working bucket, and the other end of described push cylinder is hinged on the described bearing pin.
Aforesaid integrated control mode autorail, also be hinged with the first connecting panel on the described travelling arm, described folding arm also is hinged with the second connecting panel, described the first connecting panel and described the second connecting panel are hinged, also be hinged with folding oil cylinder between described mounting bracket and described the second connecting panel, one end of described folding oil cylinder is hinged on described the second connecting panel, and the other end of described folding oil cylinder is hinged on the described folding arm.
Aforesaid integrated control mode autorail, the hinged place of described folding oil cylinder and described the second connecting panel is positioned at a side of the hinged place of described the first connecting panel and described the second connecting panel.
Aforesaid integrated control mode autorail, described electronic control unit also is connected with data logger.
The integrated control mode autorail that the utility model provides by adopting the wait for bus electronics package of upper assembling of electronic control unit control load sensing multi-way valve and Variable plunger pump, can be realized integrated control; And track adjusting wheel and high-altitude operation platform are by the load sensing multi-way valve controlling run, can carry out integrated control by more convenient electronic control unit on the one hand, load sensing multi-way valve cooperates the delivery quality of control variable plunger pump with shuttle valve on the other hand, guarantee the aequum coupling of each hydraulic actuating cylinder on the oil pump capacity of Variable plunger pump and the car, make the operation that autorail can be safe and reliable.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model integrated control mode autorail embodiment;
Fig. 2 is the structural representation of the utility model integrated control mode autorail embodiment high and medium job platform;
Fig. 3 is the local enlarged diagram of a-quadrant among Fig. 2;
Fig. 4 is the structural representation of hydraulic efficiency pressure system among the utility model integrated control mode autorail embodiment;
Fig. 5 is the connection diagram of descending leveling cyclinder and upper leveling cyclinder among the utility model integrated control mode autorail embodiment;
Fig. 6 is the schematic circuit diagram of the utility model integrated control mode autorail embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Such as Fig. 1-shown in Figure 6, the present embodiment integrated control mode autorail, comprise vehicle frame 1, wheel 2, track adjusting wheel 3 and high-altitude operation platform 6, wheel 2 is arranged on the vehicle frame 1, track adjusting wheel 3 is connected on the vehicle frame 1 by crane (not shown), is provided with hoist cylinder 31 between crane and the vehicle frame 1.High-altitude operation platform 6, comprise turn table 61, base 62, telescopic boom 63, folding arm 64, drive oil cylinder 65 and working bucket 66, the fixed arm 631 of telescopic boom 63 is hinged on the base 62, one end of folding arm 64 is hinged on the travelling arm 632 of telescopic boom 63, working bucket 66 is hinged on the other end of folding arm 64, an end that drives oil cylinder 65 is hinged on the base 62, and the other end that drives oil cylinder 65 is hinged on the middle part of fixed arm 631; Base 62 is fixed on the turn table 61, and turn table 61 is assemblied on the vehicle frame 1.Also be provided with lower leveling cyclinder 671 between fixed arm 631 and the base 62, an end and the fixed arm 631 of lower leveling cyclinder 671 are hinged, and the other end of lower leveling cyclinder 671 and base 62 are hinged; Also be provided with leveling cyclinder 672 between travelling arm 632 and the folding arm 64, one end and the travelling arm 632 of upper leveling cyclinder 672 are hinged, the rod chamber body 712 of lower leveling cyclinder 671 is connected with the rod chamber body 6722 of upper leveling cyclinder 672, and the rodless cavity body 6711 of lower leveling cyclinder 671 is connected with the rodless cavity body 6721 of upper leveling cyclinder 672; Folding arm 64 is hinged with the first sprocket wheel 681 with the hinged place of travelling arm 632, the edge of the other end of upper leveling cyclinder 672 and the first sprocket wheel 681 is hinged, folding arm 64 is provided with the second sprocket wheel 682 with the hinged place of working bucket 66, the second sprocket wheel 682 is fixed on the working bucket 66, be provided with chain 83 between the first sprocket wheel 681 and the second sprocket wheel 682, and the first sprocket wheel 681 is identical with the second sprocket wheel 682; Distance between the hinged place of the distance between the hinged place of the hinged place of fixed arm 631 and base 62 and fixed arm 631 and lower leveling cyclinder 671, the hinged place that equals the first sprocket wheel 681 and travelling arm 632 and the first sprocket wheel 681 and upper leveling cyclinder 672.The present embodiment integrated control mode autorail also comprises electronic control unit 4 and hydraulic efficiency pressure system 5, hydraulic efficiency pressure system comprises fuel tank 51, Variable plunger pump 52 and two load sensing multi-way valves 53, the import of Variable plunger pump 52 is connected with fuel tank 51, the outlet of Variable plunger pump 52 is connected with the oil inlet of load sensing multi-way valve 53, and the load-sensing oil circuit 531 of two load sensing multi-way valves 53 is connected with the load-sensitive valve 521 of Variable plunger pump 52 by shuttle valve 532; Load sensing multi-way valve 53 is connected with Variable plunger pump respectively and is connected with electronic control unit 4 by CAN bus (not shown); Hoist cylinder 31 is connected with a load sensing multi-way valve 53 wherein, drives oil cylinder 65 and is connected with another load sensing multi-way valve 53.
Particularly, electronic control unit 4 in the present embodiment is by the operation of the electronic units such as CAN bus control load sensing multi-way valve 53 and Variable plunger pump 52, electronic control unit 4 can be realized integrated control, has improved stability and the reliability of the present embodiment integrated control mode autorail.Wherein, owing to adopting load sensing multi-way valve 53 and shuttle valve 532 to cooperate the oil pump capacity of control variable plunger pump 52, when hoist cylinder 31 or when driving oil cylinder 65 suffered loads and changing, load sensing multi-way valve 53 is by 521 actions of load-sensing oil circuit 531 control load sensitive valves, with the satisfied demand to oil mass and oil pressure of the oil pump capacity of regulated variable plunger pump 52, guarantee normal operation.And wherein the hoist cylinder 31 that connects of a load sensing multi-way valve 53 is used for driving the lifting of track adjusting wheel 3, and the driving oil cylinder 65 that another load sensing multi-way valve 53 connects is used for driving the operation of high-altitude operation platform 6, by shuttle valve 32 better control variable plunger pump 52 to satisfy the demand of the hydraulic actuating cylinder on the different loads sensing multi-way valve 53.Wherein, electronic control unit 4 also is connected with data logger 41.
Further, the present embodiment integrated control mode autorail also comprises jury pump 55 and motor 56, and motor 56 drives with jury pump 55 and is connected, and the import of jury pump 55 is connected with fuel tank 51; The outlet of Variable plunger pump 52 is connected with the oil inlet of load sensing multi-way valve 53 by the first check valve 581, the outlet of jury pump 55 is connected with the oil inlet of load sensing multi-way valve 53 by the second check valve 582, and motor 56 is connected with electronic control unit 4 by the CAN bus.Concrete, during Variable plunger pump 52 et out of order in the anxious hydraulic control system of the present embodiment, hydraulic efficiency pressure system 5 can't obtain pressure oil, at this moment, starter motor 56 drives jury pump 55 runnings by motor 56, jury pump 55 will temporarily provide pressure oil to hydraulic actuating cylinder 4, guarantee the folding and unfolding of track adjusting wheel 3 or the contraction of high-altitude operation platform 6, realize the present embodiment integrated control mode autorail is carried out first aid, improve the reliability of the present embodiment integrated control mode autorail.Damage motor 56 or jury pump 55 also are provided with by pass valve 57 between the export and import of jury pump 55 for fear of load is excessive.In addition, be provided with liquidometer 512 and airfilter 511 on the fuel tank 51, Variable plunger pump 52 can be controllable capacity pump.Wherein, the first check valve 581 be connected check valve 582 and can be connected with load sensing multi-way valve 53 by high pressure filter 522.
Further, in order to realize that controlling separately working bucket 66 swings in horizontal surface, be provided with the rotating shaft 60 of vertical setting on the working bucket 66 in the present embodiment, be provided with mounting bracket 61 in the rotating shaft 60, mounting bracket 61 is hinged on the folding arm 64, and the second sprocket wheel 682 is arranged on the hinged place of folding arm 64 and mounting bracket 61; Be provided with bearing pin 611 on the mounting bracket 61, bearing pin 611 is parallel with rotating shaft 60, is provided with push cylinder 62 on the working bucket 66, and an end of push cylinder 62 is hinged on the working bucket 66, and the other end of push cylinder 62 is hinged on the bearing pin 611.Concrete, in high-altitude operation platform 6 operation process, sometimes need by a small margin adjustment is carried out in the position of working bucket 66, if at this moment with turn table 61, then adjust the action inaccuracy, not easy to operate, must adjust the position of high-altitude operation platform 6 whole mechanisms simultaneously, needed energy is larger.And pass through the flexible of push cylinder 62, and working bucket 66 is rotated around rotating shaft 60, realize adjusting separately the position of working bucket 66, reached the purpose that working bucket 66 positions are adjusted by a small margin, improved the accuracy rate of action and the flexibility ratio of vehicle; Also reduce simultaneously the frequency of utilization of turn table 61, saved energy, improved mechanical efficiency.Further again, in order to increase the luffing angle of folding arm 64, realize increasing the amplitude of fluctuation of folding arm 64, to satisfy job requirement, also be hinged with the first connecting panel 642 on the travelling arm 632 in the present embodiment, folding arm 64 also is hinged with the second connecting panel 643, the first connecting panel 642 and the second connecting panel 643 are hinged, also be hinged with folding oil cylinder 641 between mounting bracket 61 and the second connecting panel 643, one end of folding oil cylinder 641 is hinged on the second connecting panel 643, and the other end of folding oil cylinder 641 is hinged on the folding arm 64.Concrete, the first connecting panel 642 and the second connecting panel 643 rear formation V-type simple beam structure that is articulated and connected, folding oil cylinder 641 drives folding arm 64 by the first connecting panel 642 and the second connecting panel 643 and makes the pitching action, because folding oil cylinder 641 is not directly to be connected on the folding arm 64, and folding oil cylinder 641, folding arm 64, the first connecting panel 642 and the second connecting panel 643 form bar linkage structure, can realize folding arm 64 swing by a larger margin.Preferably, for the amplitude of fluctuation that makes folding arm 64 reach ± 90 °, the hinged place of folding oil cylinder 641 and the second connecting panel 643 is positioned at a side of the hinged place of the first connecting panel 642 and the second connecting panel 643.
The present embodiment integrated control mode autorail by adopting the wait for bus electronics package of upper assembling of electronic control unit control load sensing multi-way valve and Variable plunger pump, can be realized integrated control; And track adjusting wheel and high-altitude operation platform are by the load sensing multi-way valve controlling run, can carry out integrated control by more convenient electronic control unit on the one hand, load sensing multi-way valve cooperates the delivery quality of control variable plunger pump with shuttle valve on the other hand, guarantee the aequum coupling of each hydraulic actuating cylinder on the oil pump capacity of Variable plunger pump and the car, make the operation that autorail can be safe and reliable.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (7)
1. integrated control mode autorail, comprise vehicle frame, wheel, track adjusting wheel and high-altitude operation platform, described wheel is arranged on the described vehicle frame, described track adjusting wheel is connected on the vehicle frame by crane, be provided with hoist cylinder between described crane and the described vehicle frame, described high-altitude operation platform comprises turn table, base, telescopic boom, folding arm, drive oil cylinder and working bucket, the fixed arm of described telescopic boom is hinged on the described base, one end of described folding arm is hinged on the travelling arm of described telescopic boom, described working bucket is hinged on the other end of described folding arm, one end of described driving oil cylinder is hinged on the described base, the other end of described driving oil cylinder is hinged on the middle part of described fixed arm, described base is fixed on the described turn table, described turn table is assemblied on the described vehicle frame, it is characterized in that, also comprise electronic control unit and hydraulic efficiency pressure system, described hydraulic efficiency pressure system comprises fuel tank, Variable plunger pump and two load sensing multi-way valves, the import of described Variable plunger pump is connected with described fuel tank, described variable piston delivery side of pump is connected with the oil inlet of described load sensing multi-way valve, and the load-sensing oil circuit of two described load sensing multi-way valves is connected with the load-sensitive valve of described Variable plunger pump by shuttle valve; Described load sensing multi-way valve be connected Variable plunger pump and be connected with described electronic control unit by the CAN bus respectively; Described hoist cylinder is connected with a described load sensing multi-way valve wherein, and described driving oil cylinder is connected with another described load sensing multi-way valve.
2. integrated control mode autorail according to claim 1 is characterized in that, also comprises jury pump and motor, and described motor drives with described jury pump and is connected, and the import of described jury pump is connected with described fuel tank; Described variable piston delivery side of pump is connected with the oil inlet of described load sensing multi-way valve by the first check valve, described emergent delivery side of pump is connected with the oil inlet of described load sensing multi-way valve by the second check valve, and described motor is connected with described electronic control unit by the CAN bus.
3. integrated control mode autorail according to claim 1, it is characterized in that, also be provided with lower leveling cyclinder between described fixed arm and the described base, an end and the described fixed arm of described lower leveling cyclinder are hinged, and the other end of described lower leveling cyclinder and described base are hinged; Also be provided with leveling cyclinder between described travelling arm and the described folding arm, one end and the described travelling arm of described upper leveling cyclinder are hinged, the rod chamber body of described lower leveling cyclinder is connected with the rod chamber body of described upper leveling cyclinder, and the rodless cavity body of described lower leveling cyclinder is connected with the rodless cavity body of described upper leveling cyclinder; The hinged place of described folding arm and described travelling arm also is hinged with the first sprocket wheel, the edge of the other end of described upper leveling cyclinder and described the first sprocket wheel is hinged, the hinged place of described folding arm and described working bucket is provided with the second sprocket wheel, described the second sprocket wheel is fixed on the described working bucket, be provided with chain between described the first sprocket wheel and described the second sprocket wheel, and described the first sprocket wheel is identical with described the second sprocket wheel; Distance between the hinged place of the distance between the hinged place of the hinged place of described fixed arm and described base and described fixed arm and described lower leveling cyclinder, the hinged place that equals described the first sprocket wheel and described travelling arm and described the first sprocket wheel and described upper leveling cyclinder.
4. integrated control mode autorail according to claim 3, it is characterized in that, be provided with the rotating shaft of vertical setting on the described working bucket, be provided with mounting bracket in the described rotating shaft, described mounting bracket is hinged on the described folding arm, and described the second sprocket wheel is arranged on the hinged place of described folding arm and described mounting bracket; Be provided with bearing pin on the described mounting bracket, described bearing pin and described shaft parallel are provided with push cylinder on the described working bucket, and an end of described push cylinder is hinged on the described working bucket, and the other end of described push cylinder is hinged on the described bearing pin.
5. integrated control mode autorail according to claim 4, it is characterized in that, also be hinged with the first connecting panel on the described travelling arm, described folding arm also is hinged with the second connecting panel, described the first connecting panel and described the second connecting panel are hinged, also be hinged with folding oil cylinder between described mounting bracket and described the second connecting panel, an end of described folding oil cylinder is hinged on described the second connecting panel, and the other end of described folding oil cylinder is hinged on the described folding arm.
6. integrated control mode autorail according to claim 5 is characterized in that, the hinged place of described folding oil cylinder and described the second connecting panel is positioned at a side of the hinged place of described the first connecting panel and described the second connecting panel.
7. integrated control mode autorail according to claim 1 is characterized in that, described electronic control unit also is connected with data logger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644413 CN202911491U (en) | 2012-11-30 | 2012-11-30 | Integrally-controlled type autorail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644413 CN202911491U (en) | 2012-11-30 | 2012-11-30 | Integrally-controlled type autorail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202911491U true CN202911491U (en) | 2013-05-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220644413 Withdrawn - After Issue CN202911491U (en) | 2012-11-30 | 2012-11-30 | Integrally-controlled type autorail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202911491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935791A (en) * | 2012-11-30 | 2013-02-20 | 南车四方车辆有限公司 | Integrated controlled convertible car for railroads and roads |
| CN106430015A (en) * | 2016-08-24 | 2017-02-22 | 浙江鼎力机械股份有限公司 | Vehicle body with reversible control box and aerial work platform |
| CN106698282A (en) * | 2017-03-23 | 2017-05-24 | 陕西奥力信工程机械有限公司 | Hydraulic system of double-working-platform overhead working truck for road-railway dual purposes |
-
2012
- 2012-11-30 CN CN 201220644413 patent/CN202911491U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935791A (en) * | 2012-11-30 | 2013-02-20 | 南车四方车辆有限公司 | Integrated controlled convertible car for railroads and roads |
| CN102935791B (en) * | 2012-11-30 | 2014-09-24 | 南车四方车辆有限公司 | Integrated controlled convertible car for railroads and roads |
| CN106430015A (en) * | 2016-08-24 | 2017-02-22 | 浙江鼎力机械股份有限公司 | Vehicle body with reversible control box and aerial work platform |
| CN106430015B (en) * | 2016-08-24 | 2019-05-24 | 浙江鼎力机械股份有限公司 | Car body and aerial work platform with turnable control cabinet |
| CN106698282A (en) * | 2017-03-23 | 2017-05-24 | 陕西奥力信工程机械有限公司 | Hydraulic system of double-working-platform overhead working truck for road-railway dual purposes |
| CN106698282B (en) * | 2017-03-23 | 2022-10-11 | 陕西奥力信工程机械有限公司 | Hydraulic system of highway-railway dual-purpose double-working-platform aerial work vehicle |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130501 Effective date of abandoning: 20140924 |
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| RGAV | Abandon patent right to avoid regrant |