CN2720419Y - Inclination testing machine for locomotive foot stool - Google Patents
Inclination testing machine for locomotive foot stool Download PDFInfo
- Publication number
- CN2720419Y CN2720419Y CN 200420064333 CN200420064333U CN2720419Y CN 2720419 Y CN2720419 Y CN 2720419Y CN 200420064333 CN200420064333 CN 200420064333 CN 200420064333 U CN200420064333 U CN 200420064333U CN 2720419 Y CN2720419 Y CN 2720419Y
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- locomotive
- lifting table
- universal stage
- foot stool
- elevating table
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Abstract
The utility model relates to an inclination testing machine for locomotive foot stool, which comprises a bottom bracket and an elevating table pivoted on the top of one side of the bottom bracket. A deflection drive device for the elevating table that takes the pivot joint end as a center of circle is provided between the free end of the elevating table and the other end of the bottom bracket. A rotating plate is combined with the top of the elevating table that is equipped with a locomotive parking flat whose middle is combined with the elevating table with an adjustable device penetrated between them. A withdrawable pin body positioning is provided between the rotating plate and the elevating table. The important thing is to confirm the centre of gravity place of the design manufacture of the locomotive and whether the stability of the locomotive on standing satisfies the use of general road surface. When the locomotive to be tested is parked with stabilization of the incline, the locomotive is parked on the rotating plate; the drive device is actuated and the elevating table together with the rotating plate are inclined upward to the setting angle; the rotating plate is re-rotated ninety angle and is fixed by the pin body; the stability of the locomotive parked on different declination road surfaces can be tested; the utility model can ensure the safe requirement of the locomotive parking and is very practical.
Description
Technical field
The utility model relates to the proving installation of a kind of machinery and parts, when particularly relating to a kind of detection locomotive and leaving standstill, and the locomotive foot stool inclining experiment machine at its angle of inclination, acceptable maximum road surface.
Background technology
Be by its central foot rest when locomotive is parked, perhaps the batter frame cooperates the tire that lands, firmly park on the ground, yet, because the physical features that locomotive is parked is not necessarily smooth, sometimes be parked in gradient place just, such as slope, road surface, gradient terrace, the sloping floor that perhaps forms because the road surface is uneven, if locomotive foot stool (comprises central foot rest, the batter frame) design was not at that time, as easy as rolling off a logly can't stably park in the road surface slippage of being parked, therefore, the road surface degree of tilt that can bear for locomotive foot stool should be detected, to meet security needs.
In order to solve the problem that above-mentioned road surface degree of tilt should be detected, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the demand that above-mentioned road surface degree of tilt should be detected, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and cooperate the utilization of studying the science, actively studied innovation, in the hope of founding a kind of locomotive foot stool inclining experiment machine.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
Fundamental purpose of the present utility model is, solve the problem that the road surface degree of tilt should be detected, and a kind of locomotive foot stool inclining experiment machine, technical matters to be solved are provided is to make it can detect the road surface maximum inclination angle that can bear when locomotive leaves standstill, thereby is suitable for practicality.
The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.According to a kind of locomotive foot stool inclining experiment machine that the utility model proposes, it comprises: a underframe, the wherein top of a side at this underframe is pivoted with a lifting table, being provided with one between the free end of this lifting table and the underframe other end can make lifting table to articulate the drive unit that this end is a center of circle beat, be provided with a universal stage in the combination of the top of lifting table in addition, the top of this universal stage is set to the flat board that can park for locomotive, place with an adjusting gear and to combine in the middle of it with between the lifting table, make universal stage be rotatable configuration state, between universal stage and lifting table, be provided with the shank that to extract out again and place the location, when universal stage was the multiple rotation of 90 degree and 90 degree, this shank all can correspondingly be placed through between universal stage and the lifting table fixing.
The purpose of this utility model and solve its technical matters and can also be further achieved by the following technical measures.
Aforesaid locomotive foot stool inclining experiment machine, wherein said adjusting gear is a rhabodoid, wherein an end is made as screw rod, and from top to bottom be arranged on the lifting table, the stage casing of adjusting gear is provided with the top brace part of an external diameter greater than screw rod, the top of this top brace part is provided with the less throwing part of an external diameter, the central bottom of universal stage then is provided with a connecting support, the centre of this connecting support is provided with a perforation and a bearing, use on the throwing part that is set in adjusting gear and be subjected to shoring of top brace part, the top of this throwing part and be provided with one can be for the control part of the sheathed rotation of instrument, then be provided with the perforation that can pass for instrument on the flat board of universal stage.
Aforesaid locomotive foot stool inclining experiment machine, wherein said drive unit is made up of two oil hydraulic cylinders of shoring that stay between lifting table and the underframe, and two pressure cylinder shafts of shoring oil hydraulic cylinder are the structures that are synchronous release or retraction.
Aforesaid locomotive foot stool inclining experiment machine, wherein said two shore and are provided with a balance cylinder pressure between the oil hydraulic cylinder, the oil-inlet end of this balance cylinder pressure is communicated in wherein an oil outlet end of shoring oil hydraulic cylinder, and the oil outlet end of balance cylinder pressure then is connected in another and shores the oil-inlet end of oil hydraulic cylinder and be connected.
Aforesaid locomotive foot stool inclining experiment machine, but be interval with the prominent seat that several supply and marketing bodies pass on the side of wherein said universal stage, but the then corresponding perforation that is provided with the plant of supply and marketing body on the lifting table.
Via as can be known above-mentioned, the utility model is about a kind of locomotive foot stool inclining experiment machine, and it mainly is whether the centre of gravity place that manufactures and designs, the stability when locomotive leaves standstill of confirming locomotive satisfy the general road use.It is provided with one and ground the flat underframe, wherein end at underframe is pivoted with a lifting table, the top of this lifting table also is provided with a universal stage, be connected with a drive unit between lifting table and the underframe, use lifting table is up shored an angle together with universal stage, be parked in the degree of stability of the locomotive on the universal stage with detection.
By technique scheme, the utility model locomotive foot stool inclining experiment machine has following advantage at least: when desire detection locomotive is parked in the degree of stability on slope, be that locomotive is parked on the universal stage, starting drive unit makes lifting table up tilt to the angle that sets together with universal stage, and can again universal stage be rotated 90 degree, fix with shank, to detect the degree of stability of locomotive when different directions is parked, by this, utilize design of the present utility model, can detect the degree of stability on locomotive is parked in different directions with batter frame and central foot rest the slope, to guarantee its safety.
In sum, the locomotive foot stool inclining experiment machine of the utility model special construction has overcome the problem that the road surface degree of tilt should be detected, and can detect the road surface maximum inclination angle that can bear when locomotive leaves standstill.It has above-mentioned many advantages and practical value, not seeing has similar structural design to publish or use and really genus innovation, though its structurally, on the function or technically all have large improvement, and produced handy and practical effect, being very suitable for practicality, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the three-dimensional appearance synoptic diagram of the utility model locomotive foot stool inclining experiment machine.
Fig. 2 is the floor map of the utility model locomotive foot stool inclining experiment machine when being the level of state.
Fig. 3 is the floor map of the utility model locomotive foot stool inclining experiment machine when being an angle of inclination.
Fig. 4 is the schematic top plan view of the utility model locomotive foot stool inclining experiment machine.
Fig. 5 is the partial cutaway schematic of the utility model locomotive foot stool inclining experiment machine.
10: underframe 11: the pivot seat
20: lifting table 21: screw
30: universal stage 31: support body
310: connecting support 311: perforation
32: dull and stereotyped 320: perforation
40: drive unit 41: shore oil hydraulic cylinder
42: shore oil pressure 43: the balance cylinder pressure
50: adjusting gear 51: screw rod
52: top brace part 53: throwing part
54: control part
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of locomotive foot stool inclining experiment machine, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Seeing also shown in Figure 1ly, is the three-dimensional appearance synoptic diagram of the utility model locomotive foot stool inclining experiment machine.Locomotive foot stool inclining experiment machine provided by the utility model, it is provided with one and the underframe 10 of flat on ground, wherein end at underframe 10 is pivoted with a lifting table 20, the top of this lifting table 20 also is provided with a universal stage 30, be connected with a drive unit 40 between lifting table 20 and the underframe 10, using an end of shoring lifting table 20 toward upper deflecting and the angle that tilts, and for example shown in Fig. 5 sectional view, is to combine with an adjusting gear 50 between the centre of this universal stage 30 and the lifting table 20.
Please consult Fig. 1, shown in Figure 2 again, above-mentioned underframe 10, be one to have the flat support body of surrounding, wherein be respectively equipped with a pivot seat 11 at the top of a side, use a wherein side that is hubbed at lifting table 20, and above-mentioned drive unit 40 promptly is to be hubbed at underframe 10 to differ from another side of pivot seat 11, that is is positioned at the free-ended below of lifting table 20;
In this preferred embodiment, above-mentioned drive unit 40, be to shore oil hydraulic cylinder 41 by what be hubbed at underframe 10 both sides respectively, 42, and be connected in two and shore oil hydraulic cylinder 41, balance cylinder pressure 43 between 42 is formed, the oil-inlet end of this balance cylinder pressure 43, oil outlet end is shored oil hydraulic cylinder 41 with two respectively, 42 oil outlet end, oil-inlet end is connected, so can make two to shore oil hydraulic cylinder 41 by this balance cylinder pressure 43, the pressure equilibrium of 42 cylinder interior, and then two pressure cylinder shafts are released or retraction synchronously, and two shore oil hydraulic cylinder 41,42 pressure cylinder shaft end is the both sides that are hubbed at lifting table 20, when oil hydraulic cylinder 41 is shored in startup, 42 o'clock, is center of circle beat together with the universal stage 30 that is positioned at lifting table 20 tops with pivot seat 11 with lifting table 20, and when pressure cylinder shaft be when up shoring, lifting table 20 promptly can be as illustrated in fig. 3 toward tilting an angle.
See also Fig. 1, Fig. 4, shown in Figure 5, existing integrated structure between universal stage 30 and the lifting table 20 is concerned is described as follows.This universal stage 30 is to be welded into a support body 31 by several Contraband shape steel, is fixed with dull and stereotypedly 32 at the top of this support body 31, mutually combines with an adjusting gear 50 between the centre of universal stage 30 and lifting table 20.By as can be known shown in Figure 5, the centre of lifting table 20 is provided with a screw 21, adjusting gear 50 then is a rhabodoid, wherein an end is made as the screw rod of using in the screw 21 that is screwed into lifting table 20 51, the stage casing of adjusting gear 50 is provided with the top brace part 52 of an external diameter greater than screw rod 51, the top of this top brace part 52 is provided with the less throwing part of an external diameter 53, the central bottom of the support body 31 of universal stage 30 then is provided with connecting support 310, the centre of this connecting support 310 is provided with a perforation 311 and a bearing, use on the throwing part 53 that is set in adjusting gear 50, and be subjected to shoring of top brace part 52, the top of this throwing part 53 also is provided with one for the sheathed control part 54 of hand tool, flat board 32 tops of universal stage 30 then are provided with a perforation 320 that can supply hand tool to pass, when down being screwed into the screw rod 51 of hand tool with adjusting gear 50, and when the bottom surface of support body 31 and lifting table 20 are offseted, support body 31 promptly can't rotate, otherwise, when shown in arrow among the figure, when adjusting gear 50 reverse rotations being made adjusting gear 50 slightly toward top offset, promptly form a gap between support body 31 and the lifting table 20, on the throwing part 53 of adjusting gear 50, rotate for universal stage 30;
Please consult Fig. 1 again, shown in Figure 4, the support body 31 of the above-mentioned universal stage 30 wherein distance of dual-side is an end face width less than lifting table 20, that is universal stage 30 is the end face scopes that are positioned at lifting table 20, but universal stage 30 is positioned at and is interval with the prominent seat 33 that several supply and marketing bodies 34 from top to bottom place on support body 31 dual-sides of lifting table 20 scopes, but the position corresponding to each prominent seat 33 on the support body 31 then is preset with the perforation 35 that supply and marketing body 34 places, this perforation 35 though the position is set is universal stage 30 for forward in conjunction with or when being 90 degree rotations, all can be corresponding with prominent 33, place combination for shank 34, make universal stage 30 be unlikely to freely to rotate.
The above is the explanation of the utility model structure, now detection situation of the present utility model is described as follows.During detection, see also Fig. 1, shown in Figure 2, be earlier universal stage 30 to be placed minimum point, and confirm whether it is positioned at horizontal level (can be provided with an electronics angle level meter at the end face of universal stage 30 measures), locomotive A is parked in the middle of the end face of flat board 32 of universal stage 30, if when desiring to detect the batter frame of locomotive A earlier, promptly park by the batter frame, and pass the appropriate locations such as back seat handle of locomotive with a ribbon B, this ribbon B up extends hook again and is located on the overhead traveling crane in the laboratory, in case locomotive is damaged when toppling over,, this ribbon B influences test findings yet also can not restraining locomotive live.
Please consult Fig. 3 again, shown in Figure 4, then start drive unit 40, make two to shore oil hydraulic cylinder 41, the ejection simultaneously of 42 pressure cylinder shaft goes out, and make lifting table 20 together with universal stage 30 as illustrated in fig. 3 toward tilt one to the regulation angle till, if universal stage 30 is not slippage or topple over of locomotive A in the process that raises up, represent that this erection mode meets the safety standard at this pitch angle, otherwise, then do not meet, then make lifting table 20 reduce to horizontal level, and unplug each in order to shank 34 in conjunction with universal stage 30 and lifting table 20, and by rotation adjuster 50, make and form a gap between universal stage 30 and the lifting table 20, again universal stage 30 is rotated 90 degree as illustrated in fig. 4, adjust this adjusting gear 50 again, universal stage 30 is descended and be flattened on the end face of lifting table 20, and be inserted in again with each shank 34 between the perforation 35 of each prominent seat 33 and lifting table 20 and locate, drive lifting table 20 again together with universal stage 30 inclinations one angle, promptly can detect this locomotive is parked in the road surface of different vergence directions in the identical mode of parking situation.
So in regular turn universal stage 30 is 90 degree rotations, steady state (SS) when being parked in different vergence direction with the batter frame to detect locomotive, again locomotive is parked with central foot rest, and rotated this universal stage 30 in regular turn, with the steady state (SS) of this locomotive of analog detection on different vergence directions road surface.
In sum, the utility model can detect the degree of stability of locomotive when being parked in different tilted road surface, and the demand for security can guarantee that locomotive is parked the time.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, foundation technical spirit of the present utility model is to above any simple modification that embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (6)
1, a kind of locomotive foot stool inclining experiment machine is characterized in that it comprises:
One underframe, the wherein top of a side at this underframe is pivoted with a lifting table, being provided with one between the free end of this lifting table and the underframe other end can make lifting table to articulate the drive unit that this end is a center of circle beat, be provided with a universal stage in the combination of the top of lifting table in addition, the top of this universal stage is set to the flat board that can park for locomotive, place with an adjusting gear and to combine in the middle of it with between the lifting table, make universal stage be rotatable configuration state, between universal stage and lifting table, be provided with the shank that to extract out again and place the location, when universal stage was the multiple rotation of 90 degree and 90 degree, this shank all can correspondingly be placed through between universal stage and the lifting table fixing.
2, locomotive foot stool inclining experiment machine according to claim 1, it is characterized in that wherein said adjusting gear is a rhabodoid, wherein an end is made as screw rod, and from top to bottom be arranged on the lifting table, the stage casing of adjusting gear is provided with the top brace part of an external diameter greater than screw rod, the top of this top brace part is provided with the less throwing part of an external diameter, the central bottom of universal stage then is provided with a connecting support, the centre of this connecting support is provided with a perforation and a bearing, use on the throwing part that is set in adjusting gear and be subjected to shoring of top brace part, the top of this throwing part and be provided with one can be for the control part of the sheathed rotation of instrument, then be provided with the perforation that can pass for instrument on the flat board of universal stage.
3, locomotive foot stool inclining experiment machine according to claim 1 and 2, it is characterized in that wherein said drive unit is made up of two oil hydraulic cylinders of shoring that stay between lifting table and the underframe, two pressure cylinder shafts of shoring oil hydraulic cylinder are the structures that are synchronous release or retraction.
4, locomotive foot stool inclining experiment machine according to claim 3, it is characterized in that wherein said two shore and are provided with a balance cylinder pressure between the oil hydraulic cylinder, the oil-inlet end of this balance cylinder pressure is communicated in wherein an oil outlet end of shoring oil hydraulic cylinder, and the oil outlet end of balance cylinder pressure then is connected in another and shores the oil-inlet end of oil hydraulic cylinder and be connected.
5, locomotive foot stool inclining experiment machine according to claim 1 and 2, but it is characterized in that being interval with the prominent seat that several supply and marketing bodies pass on the side of wherein said universal stage, but then correspondingly on the lifting table be provided with the perforation that the supply and marketing body is planted.
6, locomotive foot stool inclining experiment machine according to claim 4, but it is characterized in that being interval with the prominent seat that several supply and marketing bodies pass on the side of wherein said universal stage, but then correspondingly on the lifting table be provided with the perforation that the supply and marketing body is planted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064333 CN2720419Y (en) | 2004-05-31 | 2004-05-31 | Inclination testing machine for locomotive foot stool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064333 CN2720419Y (en) | 2004-05-31 | 2004-05-31 | Inclination testing machine for locomotive foot stool |
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| Publication Number | Publication Date |
|---|---|
| CN2720419Y true CN2720419Y (en) | 2005-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064333 Expired - Lifetime CN2720419Y (en) | 2004-05-31 | 2004-05-31 | Inclination testing machine for locomotive foot stool |
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|---|---|
| CN (1) | CN2720419Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175455A (en) * | 2011-02-24 | 2011-09-07 | 潍柴动力股份有限公司 | Engine inclination testing equipment and platform |
| CN102305717A (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Test bench for automobile climbing capacity and differential lock performance |
| CN102384763A (en) * | 2011-09-26 | 2012-03-21 | 金华职业技术学院 | Stability test bed |
| CN103616280A (en) * | 2013-11-28 | 2014-03-05 | 江苏科技大学 | Lifting table suitable for horizontal tensile testing machine |
| CN104132814A (en) * | 2014-07-14 | 2014-11-05 | 上海宇航系统工程研究所 | Angle-adjustable slope used for assessing performance of lunar rovers |
| CN105424382A (en) * | 2015-12-11 | 2016-03-23 | 中华人民共和国金华出入境检验检疫局 | Vehicle rollover stability test stand |
| CN106053100A (en) * | 2016-08-08 | 2016-10-26 | 淮阴工学院 | Parking gradient angle detection system of automobile driven by double parallel cylinders |
| CN106383033A (en) * | 2016-10-09 | 2017-02-08 | 淮阴工学院 | Independent-cylinder-control and integrally adjusted automobile parking slope angle adjusting method |
| CN106996992A (en) * | 2016-08-31 | 2017-08-01 | 东风汽车电子有限公司 | A kind of automobile travel recorder detects fixture |
| CN107063651A (en) * | 2016-12-07 | 2017-08-18 | 北京农业智能装备技术研究中心 | A kind of full landform excitation test platform in tractor suspension system farmland |
| CN108535027A (en) * | 2018-05-04 | 2018-09-14 | 西华大学 | Static side-turning stability test bed for tractor and control method |
| CN113074958A (en) * | 2021-03-29 | 2021-07-06 | 安徽江淮银联重型工程机械有限公司 | Forklift stability inspection device and method |
-
2004
- 2004-05-31 CN CN 200420064333 patent/CN2720419Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175455A (en) * | 2011-02-24 | 2011-09-07 | 潍柴动力股份有限公司 | Engine inclination testing equipment and platform |
| CN102175455B (en) * | 2011-02-24 | 2012-10-10 | 潍柴动力股份有限公司 | Engine inclination testing equipment and platform |
| CN102305717A (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Test bench for automobile climbing capacity and differential lock performance |
| CN102305717B (en) * | 2011-05-31 | 2013-06-12 | 长城汽车股份有限公司 | Test bench for automobile climbing capacity and differential lock performance |
| CN102384763A (en) * | 2011-09-26 | 2012-03-21 | 金华职业技术学院 | Stability test bed |
| CN103616280A (en) * | 2013-11-28 | 2014-03-05 | 江苏科技大学 | Lifting table suitable for horizontal tensile testing machine |
| CN104132814A (en) * | 2014-07-14 | 2014-11-05 | 上海宇航系统工程研究所 | Angle-adjustable slope used for assessing performance of lunar rovers |
| CN105424382B (en) * | 2015-12-11 | 2018-07-13 | 中华人民共和国金华出入境检验检疫局 | Slide-out stabilizing tester |
| CN105424382A (en) * | 2015-12-11 | 2016-03-23 | 中华人民共和国金华出入境检验检疫局 | Vehicle rollover stability test stand |
| CN106053100A (en) * | 2016-08-08 | 2016-10-26 | 淮阴工学院 | Parking gradient angle detection system of automobile driven by double parallel cylinders |
| CN106053100B (en) * | 2016-08-08 | 2018-12-28 | 淮阴工学院 | Twin-tub driven in parallel automobile parking angle of gradient detection system |
| CN106996992A (en) * | 2016-08-31 | 2017-08-01 | 东风汽车电子有限公司 | A kind of automobile travel recorder detects fixture |
| CN106383033A (en) * | 2016-10-09 | 2017-02-08 | 淮阴工学院 | Independent-cylinder-control and integrally adjusted automobile parking slope angle adjusting method |
| CN106383033B (en) * | 2016-10-09 | 2019-01-08 | 淮阴工学院 | The method of adjustment of the automobile parking angle of gradient of each cylinder independent control structure adjusting |
| CN107063651A (en) * | 2016-12-07 | 2017-08-18 | 北京农业智能装备技术研究中心 | A kind of full landform excitation test platform in tractor suspension system farmland |
| CN108535027A (en) * | 2018-05-04 | 2018-09-14 | 西华大学 | Static side-turning stability test bed for tractor and control method |
| CN113074958A (en) * | 2021-03-29 | 2021-07-06 | 安徽江淮银联重型工程机械有限公司 | Forklift stability inspection device and method |
| CN113074958B (en) * | 2021-03-29 | 2024-02-27 | 安徽江淮重型工程机械有限公司 | Fork truck stability inspection device and inspection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140531 Granted publication date: 20050824 |