CN104802817A - Limiting device - Google Patents
Limiting device Download PDFInfo
- Publication number
- CN104802817A CN104802817A CN201510188873.4A CN201510188873A CN104802817A CN 104802817 A CN104802817 A CN 104802817A CN 201510188873 A CN201510188873 A CN 201510188873A CN 104802817 A CN104802817 A CN 104802817A
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- China
- Prior art keywords
- locations
- locating part
- inhibiting device
- base
- paragraph
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D45/00—Means or devices for securing or supporting the cargo, including protection against shocks
- B61D45/007—Fixing containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/13—Securing freight containers or forwarding containers on vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention provides a limiting device, which comprises a base and a limiting part rotatably arranged on the base, the limiting device also comprises a positioning part, and the base is provided with a hollow part; the limiting part can be switched between a limiting state and a non-limiting state, and when the limiting part is in the limiting state, the position of the limiting part is positioned by the positioning part; when the limiting part is in the non-limiting state, the positioning of the limiting part is released by the positioning part, and at least one part of the limiting part is contained in the hollow part. Since the technical scheme of the invention is applied, the switching between the limiting state and the non-limiting state is realized by the limiting part, the positioning and positioning release of the limiting part are realized by the positioning part, and moreover, since at least one part of the limiting part under the non-limiting state is contained in the hollow part of the base, the requirements of rapid loading and fixation can be met effectively.
Description
Technical field
The present invention relates to a kind of inhibiting device.
Background technology
In shipment process, spacing in order to what realize objects such as goods, often can use inhibiting device.At present, high speed railway shipping (hot-short motor train unit) has quicker than ordinary train (the former is 200 ~ 350km/h), the competitive edge lower than air transportation cost.With the country that France, Germany are representative, from service such as transport express mail and parcel etc., Develop High-Speed Railway shipping.
The Container Loading fixed form of traditional railway freight (row bag special train) is normally: manually load and unload, wrap up (cargo deck) in bulk, adopt tooled joint pile or trapezoidal pile pattern, utilize mutual extruding between stacking closely connected, be not fixed.Hot-short motor train unit goods fixing, needs to solve the modularization collection dress of goods, quick load and the problem such as fixing, to ensure the safe, reliable of transport.Realize the quick load of modularization contained implement at cargo hold with fixing, especially will realize two functions along vehicle operating direction: one is the artificial raceway transport of contained implement, and two is the longitudinal spacing problems after contained implement is pushed into assigned address.The former requires that inhibiting device can be turned down thus not affect transport, and the latter requires that inhibiting device can be dug meet the spacing of contained implement and meet requirement of strength.Therefore, in order to meet the needs of shipping especially high speed railway shipping, be necessary to improve in view of the foregoing defects the prior art has.
Summary of the invention
Main purpose of the present invention is to provide a kind of inhibiting device, and the structure of described inhibiting device is simple, easy to operate, reliable for effect, can meet quick load and fixing requirement well.
To achieve these goals, the invention provides a kind of inhibiting device, the locating part comprising base and be arranged on rotationally on described base, described inhibiting device also comprises locations, and described base has hollow space; Described locating part can switch between spacing state and non-spacing state, and when described locating part is in described spacing state, the position of described locating part located by described locations; When described locating part is in described non-spacing state, the location to described locating part removed by described locations, and being accommodated at least partially among described hollow space of described locating part.
Further, described locating part has base portion and limit part, described base portion comprises first paragraph and second segment, the first end of described first paragraph is arranged on described base rotationally, second end of described first paragraph is connected to the first end of described second segment, and the second end of described second segment is connected to described limit part; Described second segment and described limit part form stop zone.
Further, described second segment is linear portion, and described linear portion and described limit part form T-shaped structure.
Further, described inhibiting device also comprises the first elastic component, and described first elastic component has for making described locating part the trend switched to described non-spacing state from described spacing state.
Further, the first end of described first paragraph is arranged on described base by the first rotating shaft rotationally, and described first elastic component is be set in the first torsion spring in described first rotating shaft.
Further, described locations comprises the first locations, the first end of described first locations is arranged on described base rotationally, second end of described first locations is hook formation, described first paragraph has hollow bulb, and described hook formation is used for passing described hollow bulb when described locating part is in described spacing state and first side of catching on described first paragraph.
Further, described inhibiting device also comprises the second elastic component, and described second elastic component has trend relative to described base upward movement for making the second end of described first locations.
Further, described inhibiting device also comprises pedal, and described pedal is arranged on described first locations, moves downward relative to described base for enabling the second end of described first locations under the effect of external force.
Further, the first end of described first locations is arranged on described base by the second rotating shaft rotationally, and described second elastic component is be set in the second torsion spring in described second rotating shaft.
Further, described locations comprises the second locations, and the first end of described second locations is fixedly installed on described base, and the second end of described second locations is used for when described locating part is in described spacing state against the second side of described first paragraph; Described first side and described second side are the relative both sides of described first paragraph.
Apply technical scheme of the present invention, the switching between spacing state and non-spacing state is achieved by locating part, achieve the location of locating part by locations and remove location, and locating part under non-spacing state be contained in the hollow space of base at least partially, quick load and fixing requirement can be met well.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the inhibiting device according to the embodiment of the present invention; And
Fig. 2 shows schematic diagram when using according to the inhibiting device of the embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
In order to solve problems of the prior art, the invention provides a kind of inhibiting device, the locating part comprising base and be arranged on rotationally on described base, described inhibiting device also comprises locations, and described base has hollow space; Described locating part can switch between spacing state and non-spacing state, and when described locating part is in described spacing state, the position of described locating part located by described locations; When described locating part is in described non-spacing state, the location to described locating part removed by described locations, and being accommodated at least partially among described hollow space of described locating part.
Apply technical scheme of the present invention, the switching between spacing state and non-spacing state is achieved by locating part, achieve the location of locating part by locations and remove location, and locating part under non-spacing state be contained in the hollow space of base at least partially, quick load and fixing requirement can be met well.
Fig. 1 shows the structural representation of the inhibiting device according to the embodiment of the present invention.Fig. 1 shows the structural representation of the inhibiting device according to the embodiment of the present invention, wherein shows a part for locating part 4 in the mode of cutaway view, to embody the structure of the first locations 3.
As shown in Figure 1, in one embodiment of the invention, this inhibiting device comprises base 1 and locating part 4, and described locating part 4 is arranged on base 1 rotationally.Base 1 has hollow space.Such as, base 1 can be square framed structure, and the side plate of its left and right sides and the end plate of rear and front end surround the framed structure in a direction jointly, and the centre of this framed structure is hollow space.
It should be noted that, in FIG, described fore-and-aft direction refers to the direction that moves forward and backward (i.e. the left and right directions of Fig. 2) in goods transport process, described left and right directions with the working direction in goods transport process for benchmark (i.e. the left of Fig. 2).
Further, this inhibiting device can also comprise locations.Because locating part 4 is arranged on base 1 rotationally, locating part 4 is set to switch between spacing state and non-spacing state.When locating part 4 is in described spacing state, the position of described locations positioning limit part 4, makes it remain on described spacing state.When locating part 4 is in described non-spacing state, the location to locating part 4 removed by described locations, and being accommodated at least partially among described hollow space of locating part 4.
Further, locating part 4 can have base portion and limit part.Described base portion comprises interconnective first paragraph and second segment.The first end of described first paragraph is arranged on base 1 rotationally, and the second end of described first paragraph is connected to the first end of described second segment, and the second end of described second segment is connected to described limit part.
Described second segment and described limit part form stop zone.Thus this stop zone can being limited in supporting body (the such as freight container or pallet) of goods or goods wherein at least partially, thus realize its position-limiting action.Preferably, the junction of described second segment and described limit part at least partially can the stop zone of form right angle, thus be conducive to the position-limiting action playing this stop zone.
Described second segment can be linear portion.Described linear portion and described limit part can form T-shaped structure.Thus, the junction of described second segment and described limit part constitutes the stop zone at two right angles, thus can carry out effectively spacing to the object of both sides, front and back simultaneously.
Described inhibiting device can also comprise the first elastic component, and described first elastic component has for making locating part 4 trend switched to described non-spacing state from described spacing state.Thus, under the effect of the elastic force of the first elastic component, locating part 4 has the trend of non-spacing state turnover from upright spacing state to lodging all the time, once the location to locating part 4 removed by locations, locating part 4 just can automatic turning to non-spacing state.
With reference to Fig. 1, the first end of the first paragraph of the base portion of locating part 4 can be arranged on base 1 rotationally by the first rotating shaft 2.Described first elastic component can be set in the first torsion spring in the first rotating shaft 2.Certainly, except adopting the first torsion spring, the first elastic component can also adopt other forms of spring, and such as one end is connected on base 1, the other end is connected to extension spring on locating part 4, also can adopt other forms of parts and/or the mechanism with elastic component.
As illustrated in fig. 1 and 2, described locations can comprise the first locations 3.The first end of the first locations 3 is arranged on base 1 rotationally, and the second end of the first locations 3 is hook formation.The first paragraph of the base portion of locating part 4 has hollow bulb, and described hook formation is used for passing described hollow bulb when locating part 4 is in described spacing state and first side of catching on described first paragraph.
Thus, when locating part 4 is in upright spacing state, second end of the first locations 3 is through the hollow bulb on the first paragraph of the base portion of locating part 4, and the hook formation of the second end of the first locations 3 catches on first side (i.e. the right side of Fig. 2) of described first paragraph, thus locating part 4 is positioned at this spacing state.When locating part 4 needs from upright spacing state turnover to the non-spacing state of lodging, described hook formation can be first made to depart from the first side of described first paragraph and exit from described hollow bulb, remove the location of the first locations 3 pairs of locating parts 4, thus locating part 4 successfully can be turned to non-spacing state.
Described inhibiting device also comprises can the second elastic component, and described second elastic component has trend relative to base 1 upward movement for making the second end of the first locations 3.Thus, under the effect of the elastic force of the second elastic component, second end of the first locations 3 has the trend relative to base 1 upward movement all the time, once after the second end of the first locations 3 coordinates with the aforementioned first paragraph of locating part 4, just can by the resilient force of described second elastic component, make the reliable location that the first locations 3 can keep locating part 4.
With reference to Fig. 2, the first end of the first locations 3 is arranged on base 1 by the second rotating shaft 5 rotationally, and described second elastic component is be set in the second torsion spring in the second rotating shaft 5.Certainly, except adopting the second torsion spring, second elastic component can also adopt other forms of spring, and such as one end is connected on base 1, the other end is connected to spring on the first locations 3, also can adopt other forms of parts and/or the mechanism with elastic component.
In addition, as shown in Figure 1, described inhibiting device can also comprise pedal 6.Pedal 6 is arranged on the first locations 3, moves downward relative to base 1 for enabling the second end of the first locations 3 under the effect of external force.Such as, can trampling by the pin of operator, the second end of the first locations 3 is moved downward relative to base 1, and locating part 4 is to non-spacing state turnover simultaneously, removes the location of the first locations 3 pairs of locating parts 4.
As shown in Figure 2, described locations can also comprise the second locations 8.The first end of the second locations 8 is fixedly installed on base 1, and the second end of the second locations 8 is used for when locating part 4 is in described spacing state against the second side of described first paragraph.Described first side is the relative both sides of described first paragraph with described second side, namely lays respectively at the left and right sides of the first paragraph of the base portion of locating part 4 in fig. 2.
Preferably, as illustrated in fig. 1 and 2, the first paragraph of the base portion of locating part 4 can be segmental arc.By this structure, when being provided with second locations 8, the second locations 8 against the second side of this segmental arc under spacing state, namely against an arcwall face, can increase the stability of location thus.In addition, by first paragraph is set to segmental arc, when locating part 4 is in the non-spacing state of lodging, can reduce the height of whole inhibiting device, the supporting body (such as freight container or pallet) being convenient to goods or goods passes through from the top of inhibiting device as far as possible.
In order to improve the structural strength of base 1, as shown in Figure 1, stiffening plate 7 can be set in the hollow space of base 1.The number of described stiffening plate can be one or more, is decided according to the actual requirements.
Base 1 can be arranged the fixed mechanism for fixing self.Described fixed mechanism can comprise the bolt hole installed heavy stand and be arranged on described installation heavy stand.Heavy stand is installed and can ensures bolt after being arranged on bolt hole not higher than the upper surface of base 1, avoid interfering with the object that carries on base 1.
Fig. 2 shows schematic diagram when using according to the inhibiting device of the embodiment of the present invention.As shown in Figure 2, when the locating part 4 of aforementioned inhibiting device is in spacing state, can simultaneously spacing such as two pallets 9 (it can be placed with freight container or other goods), now, the left end of the right-hand member of the pallet 9 on the left side and the pallet 9 on the right enters two stop zone of aforementioned T-shaped structure respectively, thus achieve pallet 9 spacing.
Composition graphs 1 and Fig. 2, when two pallets 9 are removed, when the locating part 4 of aforementioned inhibiting device needs to be switched to non-spacing state, operator can tramp with one's feet and step on plate 6, thus overcome the resilient force of the second elastic component, second end of the first locations 3 is moved downward, simultaneously locating part 4 under the effect of the first elastic component or manual force to non-spacing state turnover, relieve the location of the first locations 3 pairs of locating parts 4, locating part 4 continues upset, until it be accommodated at least partially in the hollow space of base 1.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect: structure is simple, and operation and maintenance is convenient; There is higher load-carrying capacity, meet spacing and load bearing requirements; Lodge under non-spacing state, be convenient to the carrying of contained implement; Dig rear fix in position, position-limiting action is reliably effective; Unlocking operation is convenient, effectively can increase work efficiency, significantly can improve the handling speed of goods, reduces time cost.
And, limiting lock device provided by the invention can realize three objects for contained implement in cargo hold: one, for contained implement (goods) provides the longitudinal spacing at fixed position place, 5g overload impact is not less than when bearing vehicle operating direction, this device does not produce inefficacy, takes into account consideration light-weight design simultaneously; Two, when goods transports along cargo hold length direction, this inhibiting device can realize turning down lodging, facilitates goods to transport from it; Three, the operation of this inhibiting device can realize flexibly, reliably locking and unblock.
Inhibiting device provided by the invention is applicable to general freight shipments, is specially adapted to the freight shipments of shipping motor train unit, is particularly useful for spacing and is fixed thereon the pallet being placed with freight container or other goods, thus realizing the rapid handling of goods.
Describe inhibiting device of the present invention according to embodiment above, but this inhibiting device is not limited in the parts described in this embodiment and/or annexation.Such as, base is not limited to the framed structure of rectangle; The structure of locating part and locations and set-up mode thereof are not limited to structure described in embodiment and set-up mode thereof, as long as locating part can overturn switching between spacing/non-spacing state, and locations can position/remove location to locating part; First elastic component and the second elastic component are not limited to torsion spring, can be various mechanism/parts that can provide required elastic acting force.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an inhibiting device, the locating part comprising base and be arranged on rotationally on described base, is characterized in that, described inhibiting device also comprises locations, and described base has hollow space; Described locating part can switch between spacing state and non-spacing state, and when described locating part is in described spacing state, the position of described locating part located by described locations; When described locating part is in described non-spacing state, the location to described locating part removed by described locations, and being accommodated at least partially among described hollow space of described locating part.
2. inhibiting device according to claim 1, it is characterized in that, described locating part has base portion and limit part, described base portion comprises first paragraph and second segment, the first end of described first paragraph is arranged on described base rotationally, second end of described first paragraph is connected to the first end of described second segment, and the second end of described second segment is connected to described limit part; Described second segment and described limit part form stop zone.
3. inhibiting device according to claim 2, is characterized in that, described second segment is linear portion, and described linear portion and described limit part form T-shaped structure.
4. inhibiting device according to claim 2, is characterized in that, described inhibiting device also comprises the first elastic component, and described first elastic component has for making described locating part the trend switched to described non-spacing state from described spacing state.
5. inhibiting device according to claim 4, is characterized in that, the first end of described first paragraph is arranged on described base by the first rotating shaft rotationally, and described first elastic component is be set in the first torsion spring in described first rotating shaft.
6. the inhibiting device according to any one of claim 2 to 5, it is characterized in that, described locations comprises the first locations, the first end of described first locations is arranged on described base rotationally, second end of described first locations is hook formation, described first paragraph has hollow bulb, and described hook formation is used for passing described hollow bulb when described locating part is in described spacing state and first side of catching on described first paragraph.
7. inhibiting device according to claim 6, is characterized in that, described inhibiting device also comprises the second elastic component, and described second elastic component has trend relative to described base upward movement for making the second end of described first locations.
8. inhibiting device according to claim 7, it is characterized in that, described inhibiting device also comprises pedal, and described pedal is arranged on described first locations, moves downward relative to described base for enabling the second end of described first locations under the effect of external force.
9. inhibiting device according to claim 7, is characterized in that, the first end of described first locations is arranged on described base by the second rotating shaft rotationally, and described second elastic component is be set in the second torsion spring in described second rotating shaft.
10. inhibiting device according to claim 6, it is characterized in that, described locations comprises the second locations, the first end of described second locations is fixedly installed on described base, and the second end of described second locations is used for when described locating part is in described spacing state against the second side of described first paragraph; Described first side and described second side are the relative both sides of described first paragraph.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188873.4A CN104802817A (en) | 2015-04-20 | 2015-04-20 | Limiting device |
| PCT/CN2015/094564 WO2016169250A1 (en) | 2015-04-20 | 2015-11-13 | Limiting device |
| US15/119,371 US9809147B2 (en) | 2015-04-20 | 2015-11-13 | Position-limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188873.4A CN104802817A (en) | 2015-04-20 | 2015-04-20 | Limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104802817A true CN104802817A (en) | 2015-07-29 |
Family
ID=53688140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510188873.4A Pending CN104802817A (en) | 2015-04-20 | 2015-04-20 | Limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104802817A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172822A (en) * | 2015-07-31 | 2015-12-23 | 济南轨道交通装备有限责任公司 | Reversible self-locking type container locking device |
| CN106043338A (en) * | 2016-08-23 | 2016-10-26 | 西安飞豹科技发展公司 | High-speed railway handling fixation apparatus |
| WO2016169250A1 (en) * | 2015-04-20 | 2016-10-27 | 中车青岛四方机车车辆股份有限公司 | Limiting device |
| CN107487253A (en) * | 2016-06-09 | 2017-12-19 | 福特全球技术公司 | Actively load surface limiter |
| CN108216950A (en) * | 2017-11-29 | 2018-06-29 | 中车齐齐哈尔车辆有限公司 | Container and with its charging appliance |
| CN110576878A (en) * | 2019-10-11 | 2019-12-17 | 湖北韵生航天科技有限公司 | Electric guide part |
| CN112124346A (en) * | 2020-10-12 | 2020-12-25 | 中车青岛四方机车车辆股份有限公司 | Limiting mechanism and railway vehicle carriage with same |
| CN112550112A (en) * | 2020-12-11 | 2021-03-26 | 中车唐山机车车辆有限公司 | Freight floor and freight carriage |
| WO2021109623A1 (en) * | 2019-12-03 | 2021-06-10 | 中车齐齐哈尔车辆有限公司 | Container locking device and acker transport vehicle |
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| EP0753457A2 (en) * | 1995-07-12 | 1997-01-15 | Telair International Cargo Systems GmbH | Locking member |
| US6729818B1 (en) * | 2003-01-14 | 2004-05-04 | The Boeing Company | Supplemental cargo restraint system for oversized cargo |
| CN101010236A (en) * | 2004-08-16 | 2007-08-01 | 空中客车德国有限公司 | Device for locking objects into place |
| CN104442878A (en) * | 2014-12-23 | 2015-03-25 | 中山市科力高自动化设备有限公司 | Container locking device |
| CN204605817U (en) * | 2015-04-20 | 2015-09-02 | 南车青岛四方机车车辆股份有限公司 | Inhibiting device |
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| EP0753457A2 (en) * | 1995-07-12 | 1997-01-15 | Telair International Cargo Systems GmbH | Locking member |
| US6729818B1 (en) * | 2003-01-14 | 2004-05-04 | The Boeing Company | Supplemental cargo restraint system for oversized cargo |
| CN101010236A (en) * | 2004-08-16 | 2007-08-01 | 空中客车德国有限公司 | Device for locking objects into place |
| CN104442878A (en) * | 2014-12-23 | 2015-03-25 | 中山市科力高自动化设备有限公司 | Container locking device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169250A1 (en) * | 2015-04-20 | 2016-10-27 | 中车青岛四方机车车辆股份有限公司 | Limiting device |
| US9809147B2 (en) | 2015-04-20 | 2017-11-07 | Crrc Qingdao Sifang Co., Ltd. | Position-limiting device |
| CN105172822A (en) * | 2015-07-31 | 2015-12-23 | 济南轨道交通装备有限责任公司 | Reversible self-locking type container locking device |
| CN105172822B (en) * | 2015-07-31 | 2017-11-03 | 中车山东机车车辆有限公司 | A kind of turnable self-locking container locking device |
| CN107487253A (en) * | 2016-06-09 | 2017-12-19 | 福特全球技术公司 | Actively load surface limiter |
| CN106043338B (en) * | 2016-08-23 | 2021-02-09 | 西安飞豹科技有限公司 | High-speed railway loading and unloading fixing device |
| CN106043338A (en) * | 2016-08-23 | 2016-10-26 | 西安飞豹科技发展公司 | High-speed railway handling fixation apparatus |
| CN108216950A (en) * | 2017-11-29 | 2018-06-29 | 中车齐齐哈尔车辆有限公司 | Container and with its charging appliance |
| CN110576878A (en) * | 2019-10-11 | 2019-12-17 | 湖北韵生航天科技有限公司 | Electric guide part |
| CN110576878B (en) * | 2019-10-11 | 2023-12-29 | 湖北韵奥科技有限公司 | Electric guide member |
| WO2021109623A1 (en) * | 2019-12-03 | 2021-06-10 | 中车齐齐哈尔车辆有限公司 | Container locking device and acker transport vehicle |
| CN112124346A (en) * | 2020-10-12 | 2020-12-25 | 中车青岛四方机车车辆股份有限公司 | Limiting mechanism and railway vehicle carriage with same |
| CN112550112A (en) * | 2020-12-11 | 2021-03-26 | 中车唐山机车车辆有限公司 | Freight floor and freight carriage |
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