AU2014202101A1 - Movable footboard for railway wagon and railway wagon - Google Patents

Movable footboard for railway wagon and railway wagon Download PDF

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Publication number
AU2014202101A1
AU2014202101A1 AU2014202101A AU2014202101A AU2014202101A1 AU 2014202101 A1 AU2014202101 A1 AU 2014202101A1 AU 2014202101 A AU2014202101 A AU 2014202101A AU 2014202101 A AU2014202101 A AU 2014202101A AU 2014202101 A1 AU2014202101 A1 AU 2014202101A1
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AU
Australia
Prior art keywords
footboard
wagon
footboard body
lateral sides
mounting holes
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Granted
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AU2014202101A
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AU2014202101B2 (en
Inventor
Junfeng Han
Wei Zhang
Jian Zhao
Heping Zheng
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CRRC Qiqihar Rolling Stock Co Ltd
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Qiqihar Railway Rolling Stock Co Ltd
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Publication of AU2014202101A1 publication Critical patent/AU2014202101A1/en
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Publication of AU2014202101B2 publication Critical patent/AU2014202101B2/en
Assigned to CRRC QIQIHAR ROLLING STOCK CO., LTD. reassignment CRRC QIQIHAR ROLLING STOCK CO., LTD. Request to Amend Deed and Register Assignors: QIQIHAR RAILWAY ROLLING STOCK CO., LTD.
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Abstract

A movable footboard for a railway wagon and a railway wagon are provided in the present application. The footboard is of a ladder shape, and is formed by at least two U-shaped footboard bodies connected to one another end-to-end, a footboard body located at an upper portion of the footboard is an upper footboard body, and a footboard body located at a lower portion of the footboard is a lower footboard body, and a closed end of the upper footboard body is detachably connected to an open end of the lower footboard body. The footboard bodies are detachably connected, thus during the overhaul of a wagon body, when a bogie is required to be detached from the wagon body, the lower footboard body may be detached to avoid interference between the footboard body and the bogie, therefore it is not necessary to lift the wagon body via a lifting jack to avoid the interference, thus it is convenient for overhauling the wagon body. 5303185 1 (GHMatters) P96800.AU 15/04/14 Figure 1 Figure 2 5303185 1 (GHMatters) P96800.AU 15/04/14

Description

- 1 MOVABLE FOOTBOARD FOR RAILWAY WAGON AND RAILWAY WAGON TECHNICAL FIELD [0001] The present application relates to the technology of railway wagons, in particular to a movable footboard for a railway wagon and a railway wagon. BACKGROUND [0002] The conventional footboards for the railway wagon are all of a whole welded structure. As shown in Figure 1, a footboard consists of an upper footboard body 1 and a lower footboard body 2 which are welded together. Two ends of the upper footboard body 1 are welded to one end of a mounting base 3, and the other end of the mounting base 3 is welded to an end portion of a wagon body 4, and the footboard has a fixed structure. When it is required to overhaul the wagon in a maintenance workshop, a bogie of the wagon is required to be detached from the wagon body and pushed out, so as to be disassembled for inspection and repair. Since multiple footboards are arranged at the end portion of the wagon body, the wagon body has to be lifted to a high position to avoid interference between the footboards and the bogie, which is not convenient for maintenance. SUMMARY [0003] The present application provides a movable footboard for a railway wagon and a railway wagon, which may facilitate maintenance. [0004] A movable footboard for a railway wagon is provided in the present application. The footboard is of a ladder shape, and is formed by at least two U-shaped footboard bodies connected to one another end-to-end, a footboard body located at an upper portion of the footboard is an upper footboard body, and a footboard body located at a lower portion of the footboard is a lower footboard body, and a closed end of the upper footboard body is detachably connected to an open end of the lower footboard body. [0005] As an embodiment, the closed end of the upper footboard body is located in the open end of the lower footboard body, and two lateral sides of the upper footboard body are 5303185 1 (GHMatters) P96800.AU 15/04/14 -2 detachably connected to two lateral sides of the lower footboard body. And this embodiment has the following two preferable manners. [0006] In the first preferred manner, both of the two lateral sides of the upper footboard body are provided with two circular mounting holes at a position near the closed end of the upper footboard body, and the two circular mounting holes are arranged in the height direction of the two lateral sides of the upper footboard body; both of the two lateral sides of the lower footboard body are provided with an elongated mounting hole arranged in the height direction of the two lateral sides of the lower footboard body; and the circular mounting hole and the elongated mounting hole are connected via a bolt assembly. [0007] In the second preferred manner, both of the two lateral sides of the upper footboard body are provided with two first mounting holes at a position near the closed end of the upper footboard body, and the two first mounting holes are arranged in the height direction of the two lateral sides of the upper footboard body; both of the two lateral sides of the lower footboard body are provided with at least two second mounting holes arranged in the height direction of the two lateral sides of the lower footboard body, and a distance between the two second mounting holes is equal to a distance between the two first mounting holes; and the first mounting hole and the second mounting hole are connected via a bolt assembly. [0008] The first mounting holes and the second mounting holes are each of a circular structure. [0009] As another embodiment, the open end of the lower footboard body has a flanging, and the flanging is detachably connected to a base of the upper footboard body. [0010] In the movable footboard for the railway wagon according to the present application, the footboard bodies are detachably connected, thus during the overhaul of a wagon body, when a bogie is required to be detached from the wagon body, the lower footboard body may be detached to avoid interference between the footboard body and the bogie, therefore it is not necessary to lift the wagon body via a lifting jack to avoid the 5303185 1 (GHMatters) P96800.AU 15/04/14 -3 interference, thus it is convenient for overhauling the wagon body. [0011] A railway wagon is further provided in the present application, which includes a wagon body and footboards installed at end portions of the wagon body via a mounting base, the mounting base having one end fixed on the wagon body and the other end extending outwardly with respect to the wagon body, the footboard having a top fixedly connected to the outwardly extending end of the mounting base, and a bottom extending downwardly, wherein the footboard is one of the above-described movable footboards for the railway wagon, and an open end of an upper footboard body of the footboard is fixedly connected to the outwardly extending end of the mounting base. [0012] In the railway wagon provided in the present application, during the normal operation of the wagon, the upper footboard body and the lower footboard body are connected to form a long footboard to facilitate use. When the wagon is to be overhauled in a maintenance workshop, the upper footboard body may be detached from the lower footboard body, thus only the upper footboard body is fixed on the mounting base, which greatly reduces the length of footboard. Then, the wagon body is lifted by the lifting jack to push out the bogie, thus it is not necessary to lift the wagon body to a high position via the lifting jack, thereby facilitating overhauling the wagon body. DESCRIPTION OF THE DRAWINGS [0013] Figure 1 is a schematic view showing the structure of a footboard in the conventional technology; [0014] Figure 2 is an assembly drawing of a movable footboard and a mounting base according to a first embodiment of the present application; [0015] Figure 3 is an assembly drawing of a movable footboard and a mounting base according to a second embodiment of the present application; [0016] Figure 4 is a left view of Figure 3; [0017] Figure 5 is an assembly drawing of a movable footboard and a mounting base 5303185 1 (GHMatters) P96800.AU 15/04/14 -4 according to a third embodiment of the present application; and [0018] Figure 6 is an exploded schematic view of a movable footboard and a mounting base according to a fourth embodiment of the present application. DETAILED DESCRIPTION First Embodiment [0019] As shown in Figure 2, a movable footboard for a railway wagon is provided in the present application. The footboard is of a ladder shape, and is formed by at least two U-shaped footboard bodies connected to one another end-to-end. A footboard body located at an upper portion of the footboard is an upper footboard body 1, and a footboard body located at a lower portion of the footboard is a lower footboard body 2. A closed end 11 of the upper footboard body is detachably connected to an open end 22 of the lower footboard body. As one manner of the detachable connection, the closed end 11 of the upper footboard body and the open end of the lower footboard body 22 are connected via a bolt assembly 10. [0020] In the movable footboard for the railway wagon according to the present application, the upper footboard body 1 and the lower footboard body 2 are detachably connected, thus during the overhaul of a wagon body, when a bogie is required to be detached from the wagon body, the lower footboard body may be detached to avoid interference between the footboard body and the bogie, therefore it is not necessary to lift the wagon body via a lifting jack to avoid the interference, thus it is convenient for overhauling the wagon body. [0021] In this embodiment, the footboard includes two footboard bodies. When the footboard includes three footboard bodies, the footboard has identical structure, and an open end of a lower footboard body in each two adjacent footboard bodies is detachably connected a closed end of an upper footboard body in the two adjacent footboard bodies. During the overhaul of the wagon body, the footboard bodies may be selectively detached. The detachable connection refers to bolt connection. The specific structure of the detachable connection is illustrated by the following two embodiments. 5303185 1 (GHMatters) P96800.AU 15/04/14 -5 [0022] In one manner of the first embodiment as shown in Figures 3 to 5, the closed end 11 of the upper footboard body is located in the open end 22 of the lower footboard body, and two lateral sides 13 of the upper footboard body are detachably connected to two lateral sides 23 of the lower footboard body. This structure may be realized by the following two preferred manners. Second Embodiment [0023] As shown in Figures 3 and 4, based on the first embodiment, both of the two lateral sides 13 of the upper footboard body are provided with two circular mounting holes 14 at a position near the closed end of the upper footboard body, and the two circular mounting holes 14 are arranged in the height direction of the two lateral sides of the upper footboard body 13. Both of the two lateral sides 23 of the lower footboard body are provided with an elongated mounting hole 24 arranged in the height direction of the two lateral sides 23 of the lower footboard body. The circular mounting hole 14 and the elongated mounting hole are connected via a bolt assembly 10. [0024] During the normal driving of the wagon, a top of the elongated mounting hole 24 of the lower footboard body and the two circular mounting holes 14 are cooperated with each other and are connected via bolt assemblies. During the overhaul of the wagon, nuts connecting two footboard bodies are unscrewed, and the lower footboard body is moved upward by a distance, such that a bottom of the elongated mounting hole 24 cooperates with the two circular mounting holes 14, and then the nuts at two sides are screwed again. And the wagon body is lifted via the lifting jack to push out the bogie, and the height of the lifting jack at this time is far less than that of the lifting jack during the overhaul of the wagon with a whole welded footboard in the conventional technology, thus such structure is convenient for the overhaul of the wagon body. Third Embodiment [0025] As shown in Figure 5, based on the first embodiment, both of the two lateral sides 13 of the upper footboard body are provided with two first mounting holes 15 at a 5303185 1 (GHMatters) P96800.AU 15/04/14 -6 position near the closed end of the upper footboard body, and the two first mounting holes 15 are arranged in the height direction of the two lateral sides 13 of the upper footboard body. Both of the two lateral sides 23 of the lower footboard body are provided with at least four second mounting holes 25 arranged in the height direction of the two lateral sides 23 of the lower footboard body. Two of the second mounting holes 25 are arranged at a top of the lower footboard body, and the other two of the second mounting holes 25 are arranged at a bottom of the lower footboard body, and a distance between the two second mounting holes 25 located at the top of the lower footboard body is equal to a distance between the two second mounting holes 25 located at the bottom of the lower footboard body. The first mounting hole 15 and the second mounting hole 25 are connected via a bolt assembly. The first mounting holes 15 and the second mounting holes 25 are each of a circular structure. [0026] During the normal driving of the wagon, the two second mounting holes 25 at the top of the lower footboard body and the two first mounting holes 15 are cooperated with each other and are connected via bolt assemblies. During the overhaul of the wagon, nuts connecting two footboard bodies are unscrewed, and the lower footboard body is moved upward by a distance, such that the two second mounting holes 25 at the bottom of the lower footboard body may cooperate with the two first mounting holes 15, and then the nuts at two sides are screwed again. And the wagon body is lifted via the lifting jack to push out the bogie, and the height of the lifting jack at this time is far less than that of the lifting jack during the overhaul of the wagon with a whole welded footboard in the conventional technology, thus such structure is convenient for the overhaul of the wagon body. Fourth Embodiment [0027] As shown in Figure 6, as one manner of the first embodiment, the open end 22 of the lower footboard body has a flanging 20, and the flanging 20 is detachably connected to a base 12 of the upper footboard body. The flanging 20 may be folded inwardly or outwardly with respect to the open end 22 of the lower footboard body. In this embodiment, the flanging 20 is folded outwardly with respect to the open end 22 of the lower footboard body. [0028] During the normal driving of the wagon, the flanging 20 on the lower footboard 5303185 1 (GHMatters) P96800.AU 15/04/14 -7 body and the base of the upper footboard body are connected via bolt assemblies. During the overhaul of the wagon, when the bogie is required to be detached from the wagon body, the nuts may be unscrewed to detach the lower footboard body from the upper footboard body so as to avoid interference between the footboard body and the bogie, therefore it is not necessary to lift the wagon body via a lifting jack to avoid the interference, thus it is convenient for overhauling the wagon body. Fifth Embodiment [0029] As shown in Figures 2 to 6, the present application also provides a railway wagon which includes a wagon body and footboards installed at end portions of the wagon body via a mounting base 3. The mounting base has one end 31 fixed on the wagon body, and the other end 32 extending outwardly with respect to the wagon body. A top of the footboard is fixedly connected to the outwardly extending end of the mounting base, and a bottom of the footboard extends downwardly. The footboard may be any one of the movable footboards for the railway wagon in the above embodiments. An open end of an upper footboard body is fixedly connected to the outwardly extending end of the mounting base. [0030] In the railway wagon provided in the present application, during the normal operation of the wagon, the upper footboard body and the lower footboard body are connected to form a long ladder to facilitate use. When the wagon is to be overhauled in a maintenance workshop, the upper footboard body may be detached from the lower footboard body, or the lower footboard body may be moved upwardly by a distance to form a structure that the upper footboard body and the lower footboard body are sleeved together to form a short ladder. And then the wagon body is lifted by the lifting jack to push out the bogie, since the footboard is short, it is not necessary to lift the wagon body to a high position via the lifting jack, thus it is convenient for overhauling the wagon body. [0031] It should be noted that, the above embodiments are only intended for describing the technical solutions of the present application, and should not be interpreted as limitation to the present application. Although the present application is described in detail in conjunction with the above embodiments, it should be understood that, for those skilled in 5303185 1 (GHMatters) P96800.AU 15/04/14 -8 the art, modifications may be made to the technical solutions of the above embodiments, or equivalent substitutions may be made to part or all of the technical features in the technical solutions; and theses modifications and substitutions also fall into the protection scope of the present application defined by the claims. [0032] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. 5303185 1 (GHMatters) P96800.AU 15/04/14

Claims (7)

1. A movable footboard for a railway wagon, wherein the footboard is of a ladder shape, and is formed by at least two U-shaped footboard bodies connected to one another end-to-end, a footboard body located at an upper portion of the footboard is an upper footboard body, and a footboard body located at a lower portion of the footboard is a lower footboard body, and a closed end of the upper footboard body is detachably connected to an open end of the lower footboard body.
2. The movable footboard for a railway wagon according to claim 1, wherein the closed end of the upper footboard body is located in the open end of the lower footboard body, and two lateral sides of the upper footboard body are detachably connected to two lateral sides of the lower footboard body.
3. The movable footboard for a railway wagon according to claim 2, wherein both of the two lateral sides of the upper footboard body are provided with two circular mounting holes at a position near the closed end of the upper footboard body, and the two circular mounting holes are arranged in the height direction of the two lateral sides of the upper footboard body; both of the two lateral sides of the lower footboard body are provided with an elongated mounting hole arranged in the height direction of the two lateral sides of the lower footboard body; and the circular mounting hole and the elongated mounting hole are connected via a bolt assembly.
4. The movable footboard for a railway wagon according to claim 2, wherein both of the two lateral sides of the upper footboard body are provided with two first mounting holes at a position near the closed end of the upper footboard body, and the two first mounting holes are arranged in the height direction of the two lateral sides of the upper footboard body; both of the two lateral sides of the lower footboard body are provided with at least two second mounting holes arranged in the height direction of the two lateral sides of the lower footboard body, and a distance between the two second mounting holes is equal to a distance between the two first mounting holes; and the first mounting hole and the second mounting hole are connected via a bolt assembly. 5303185 1 (GHMatters) P96800.AU 15/04/14 - 10
5. The movable footboard for a railway wagon according to claim 4, wherein the first mounting holes and the second mounting holes are each of a circular structure.
6. The movable footboard for a railway wagon according to claim 4, wherein the open end of the lower footboard body has a flanging, and the flanging is detachably connected to a base of the upper footboard body.
7. A railway wagon, comprising a wagon body and footboards installed at end portions of the wagon body via a mounting base, the mounting base having one end fixed on the wagon body and the other end extending outwardly with respect to the wagon body, the footboard having a top fixedly connected to the outwardly extending end of the mounting base, and a bottom extending downwardly, wherein the footboard is the movable footboard for the railway wagon according to any one of claims 1 to 6, and an open end of an upper footboard body of the footboard is fixedly connected to the outwardly extending end of the mounting base. 5303185 1 (GHMatters) P96800.AU 15/04/14
AU2014202101A 2013-08-23 2014-04-15 Movable footboard for railway wagon and railway wagon Active AU2014202101B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320519627.9 2013-08-23
CN201320519627.9U CN203472865U (en) 2013-08-23 2013-08-23 Movable pedal for railway freight wagon and railway freight wagon

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AU2014202101A1 true AU2014202101A1 (en) 2015-03-12
AU2014202101B2 AU2014202101B2 (en) 2016-03-03

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AU (1) AU2014202101B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109017844B (en) * 2018-06-21 2020-06-23 中车株洲电力机车有限公司 Pedal device and bogie with same
CN113442962B (en) * 2021-07-21 2023-08-15 中车青岛四方机车车辆股份有限公司 Pedal structure and rail vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1677373A (en) * 1927-06-02 1928-07-17 Koppel Ind Car & Equipment Co Adjustable sill step for railway dump cars
US2678832A (en) * 1952-08-19 1954-05-18 Gertrude Watts Sammons Flexible step for trucks
CN201534548U (en) * 2009-11-10 2010-07-28 南车长江车辆有限公司 Ladder-type corner post for railway open wagon

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CN203472865U (en) 2014-03-12

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Owner name: CRRC QIQIHAR ROLLING STOCK CO., LTD.

Free format text: FORMER NAME(S): QIQIHAR RAILWAY ROLLING STOCK CO., LTD.