CN112441037B - Skirtboard subassembly and rail vehicle who has it - Google Patents

Abstract

The invention discloses a skirtboard assembly which is suitable for being arranged on a vehicle body, wherein the vehicle body comprises a bottom frame and a mounting plate, the mounting plate is arranged below the bottom frame, and an opening is defined between the mounting plate and the bottom frame; the apron assembly includes: at least one moving skirt panel disposed between the undercarriage and the mounting plate, the moving skirt panel being movable between a first position and a second position, the moving skirt panel closing the opening when the moving skirt panel is in the first position, the moving skirt panel moving in a direction generally away from the undercarriage and the mounting plate to open the opening when the moving skirt panel moves from the first position to the second position. According to the apron board assembly, when the apron board assembly is applied to the railway vehicle, safety accidents are not easy to happen, and when the apron board assembly is used for overhauling or spot inspection, the operation space is larger, the overhauling and maintenance are more convenient, so that the overhauling or spot inspection efficiency of the railway vehicle can be improved.

Description

Skirtboard subassembly and rail vehicle who has it

Technical Field

The invention relates to the technical field of rail transit, in particular to a skirtboard assembly and a rail vehicle with the skirtboard assembly.

Background

In the related art, when opening tram's skirtboard, waste time and energy, and the maintenance or peripheral personnel are hit easily to the in-process of propping open the skirtboard outwards, have certain potential safety hazard. Moreover, when the vehicle needs to be lifted or debugged, the skirt board needs to be disassembled and assembled, even the skirt board is disassembled and assembled for many times, which is very troublesome, and the disassembled parts are more and are easy to lose.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a skirt assembly, which is less prone to safety accidents when the skirt assembly is applied to a rail vehicle, and can improve inspection or spot check efficiency.

Another object of the present invention is to provide a railway vehicle having the skirt panel assembly.

The apron assembly according to the embodiment of the first aspect of the invention is suitable for being arranged on a vehicle body, the vehicle body comprises a bottom frame and a mounting plate, the mounting plate is arranged below the bottom frame, and an opening is defined between the mounting plate and the bottom frame; the skirt assembly comprises: at least one moving skirt panel disposed between the undercarriage and the mounting plate, the moving skirt panel being movable between a first position and a second position, the moving skirt panel closing the opening when the moving skirt panel is in the first position, the moving skirt panel moving in a direction generally away from the undercarriage and the mounting plate to open the opening when the moving skirt panel moves from the first position to the second position.

According to the apron board assembly provided by the embodiment of the invention, the movable apron board is arranged to be movable between the first position for closing the opening and the second position for opening the opening by facing the direction away from the underframe and the mounting plate as a whole, when the apron board assembly is applied to a railway vehicle, compared with the traditional movable apron board opening mode, safety accidents are not easy to occur, and when the apron board assembly is used for overhauling or spot inspection, the operation space is larger, the overhauling and maintenance are more convenient, and therefore the overhauling or spot inspection efficiency of the railway vehicle can be improved.

According to some embodiments of the invention, an upper end of each of the moving skirt panels is connected to the underframe by at least one moving mechanism, each moving mechanism comprising: the sliding rail is fixedly connected to the bottom of the bottom frame; the sliding block is movably arranged on the sliding rail and is connected with the upper end of the movable apron board, and when the sliding block moves along the sliding rail, the sliding block drives the movable apron board to move between the first position and the second position.

According to some embodiments of the present invention, a first positioning hole is formed on the slide rail, a second positioning hole is formed on the slider, and positioning parts are disposed in the first positioning hole and the second positioning hole to limit the slider to move along the slide rail when a central axis of the first positioning hole and a central axis of the second positioning hole coincide.

According to some embodiments of the invention, the first positioning hole is provided in plurality, and the plurality of first positioning holes are arranged at intervals along the length direction of the slide rail.

According to some embodiments of the invention, the bottom of the underframe is provided with a car lifting plate corresponding to the moving skirt plate.

According to some embodiments of the invention, two moving mechanisms are arranged between the upper end of each moving skirt board and the underframe, and the two moving mechanisms are arranged at intervals along the length direction of the moving skirt board.

According to some embodiments of the invention, a locking structure is provided between the lower end of the moving skirt and the mounting plate, the locking structure comprising: a latch disposed on one of the mounting plate and the moving skirt plate; the lock body is arranged on the other one of the mounting plate and the movable skirt plate, the lock body is provided with a lock tongue, the lock tongue is detachably matched with the lock catch, the movable skirt plate can move between the first position and the second position when the lock tongue is separated from the lock catch, and the lower end of the movable skirt plate is locked on the mounting plate when the lock tongue is matched with the lock catch.

According to some embodiments of the invention, a push-pull bracelet is provided on the moving skirt, the push-pull bracelet moving the moving skirt between the first position and the second position.

According to some embodiments of the invention, the moving skirt is plural, and the plural moving skirt is arranged in left-right symmetry along a longitudinal direction of the under frame.

According to a second aspect of the present invention, a rail vehicle includes: the vehicle comprises a vehicle body and a vehicle body, wherein the vehicle body comprises a bottom frame and an installation plate, the installation plate is arranged below the bottom frame, and an opening is defined between the installation plate and the bottom frame; a skirt assembly provided at the opening, the skirt assembly being in accordance with an embodiment of the above first aspect of the invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic illustration of a rail vehicle and a rail beam according to an embodiment of the present invention;

FIG. 2 is a top plan view of the rail vehicle shown in FIG. 1 with the tongue engaged with the buckle;

FIG. 3 is a schematic cross-sectional view of a slider and a slide rail according to an embodiment of the invention;

FIG. 4 is another top view of a rail vehicle with the tongue separated from the buckle according to an embodiment of the present invention;

FIG. 5 is yet another top view of a railway vehicle with the moving skirt panel to the left moving to a second position and the moving skirt panel to the right intermediate the first and second positions in accordance with an embodiment of the present invention;

FIG. 6 is yet another top view of a rail vehicle according to an embodiment of the present invention, wherein mounting plates, slide rails, slide blocks, latch structures, etc. are not shown;

FIG. 7 is a perspective view of a rail vehicle according to an embodiment of the present invention;

FIG. 8 is an enlarged view of portion A circled in FIG. 7;

FIG. 9 is a perspective view of another angle of the rail vehicle shown in FIG. 7;

FIG. 10 is a front view of the rail vehicle shown in FIG. 7;

fig. 11 is a bottom view of the rail vehicle shown in fig. 7.

Reference numerals:

a rail vehicle 100;

a vehicle body 1; a chassis 11; a mounting plate 2; moving the skirt board 3;

a slide rail 41; a first positioning hole 411; a slider 42; the second positioning hole 421;

a vehicle lifting plate 5; a latch 61; a latch bolt 62; push-pull bracelet 7; a mounting seat 8;

the track beam 200.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

An apron assembly according to an embodiment of the invention is described below with reference to fig. 1-11. The skirt assembly may be applied to a rail vehicle 100 such as a tram. In the following description of the present application, an example in which the apron assembly is applied to a rail vehicle 100 such as a railroad car is explained. Of course, those skilled in the art will appreciate that the rail vehicle 100 may also be a subway, a light rail, or the like.

As shown in fig. 1 to 11, a skirt assembly according to an embodiment of the present invention is adapted to be provided to a vehicle body 1, the vehicle body 1 including a base frame 11 and a mounting plate 2, the mounting plate 2 being provided below the base frame 11, and the mounting plate 2 defining an opening with the base frame 11. Wherein the skirt assembly comprises a base frame 11, a mounting plate 2 and at least one moving skirt 3.

Specifically, the moving skirt 3 is provided between the base frame 11 and the mounting plate 2, and the moving skirt 3 is movable between a first position (shown in fig. 1 and 2) in which the moving skirt 3 closes the opening and a second position (shown in fig. 5) in which the moving skirt 3 moves as a whole in a direction away from the base frame 11 and the mounting plate 2 to open the opening when the moving skirt 3 moves from the first position to the second position. For example, in the example of fig. 1-5, the mounting plate 2 is located below the base frame 11 and spaced up and down from the base frame 11, an opening is defined between an outer end of the base frame 11 and an outer end of the mounting plate 2, and the moving skirt 3 is horizontally movably mounted at the opening. Here, it should be noted that the direction "outer" may be understood as a direction away from the longitudinal center plane of the chassis 11, and the opposite direction is defined as "inner", i.e., a direction toward the longitudinal center plane of the chassis 11.

When the skirt panel assembly is applied to a rail vehicle 100, such as a tram, the moving skirt panel 3 is in the first position during driving to ensure safety during driving. When the rail vehicle 100, such as a tram, needs to be overhauled or checked, a maintenance person can pull the moving skirt board 3 outwards to move the whole moving skirt board 3 from the first position to the second position, and in the process, the maintenance person can observe surrounding obstacles while opening the door, so that safety accidents are avoided. When whole removal skirtboard 3 removed to the second position, the opening exposes, and maintainer can overhaul or the point is examined rail vehicle 100 such as tram through the opening, owing to remove skirtboard 3 and chassis 11 and mounting panel 2 and all separate the certain distance this moment, provides spacious space for follow-up maintenance or point is examined, makes the maintenance more convenient, has improved rail vehicle 100 such as tram's maintenance or point efficiency of examining.

In the related art, when the skirt board of the tram is opened, the skirt board lock is separated from the skirt board lock catch manually, and then the skirt board is spread by the gas spring. Wherein, manual separation apron board lock wastes time and energy with the apron board hasp, and outwards struts the in-process of apron board at the gas spring in the twinkling of an eye and hit maintenance or peripheral personnel easily, has certain potential safety hazard. In addition, because the car lifting plate of the tramcar is arranged in the apron plate, when the tramcar needs to be lifted, the apron plate needs to be disassembled firstly to install and fix the lifting appliance, particularly in a debugging stage, so that the apron plate is repeatedly disassembled and assembled, the service life of easily-damaged and consumable parts is shortened, and the disassembled parts are more and are easy to lose. In addition, the installation process of recovering the skirt board after being disassembled is very troublesome, the gap surface difference between the skirt board and the vehicle body needs to be adjusted repeatedly, and time and labor are wasted.

Thus, according to the skirt panel assembly of the embodiment of the present invention, by providing the moving skirt panel 3 to be movable between the first position closing the opening and the second position entirely facing away from the underframe 11 and the mounting plate 2 to open the opening, when the skirt panel assembly is applied to the rail vehicle 100 such as a tram, a safety accident is not easily occurred compared to the conventional moving skirt panel 3 opening manner, and an operation space is larger at the time of performing an inspection or spot check, and the inspection or spot check is more convenient, so that the inspection or spot check efficiency of the rail vehicle 100 such as a tram can be improved.

According to some embodiments of the invention, with reference to fig. 1 in combination with fig. 2-5, 7-11, the upper end of each moving skirt 3 is connected to the underframe 11 by at least one moving mechanism, each moving mechanism comprising: slide rail 41 and slider 42, slide rail 41 fixed connection is in the bottom of chassis 11, and slider 42 is movably established on slide rail 41, and slider 42 links to each other with the upper end of moving skirtboard 3, and slider 42 drives when slider 42 moves along slide rail 41 and moves moving skirtboard 3 between primary importance and second place. Wherein the slide rail 41 may extend in a direction perpendicular to the longitudinal center plane of the vehicle body 1 so that the moving skirt 3 may move back and forth in a direction perpendicular to the longitudinal center plane of the vehicle body 1. Therefore, the moving apron 3 can be moved between the first position and the second position smoothly by adopting the moving mechanism formed by the slide rail 41 and the slide block 42 which are matched with each other, and the structure is simple and easy to realize. The slide rail 41 may be a linear slide rail.

Further, as shown in fig. 2, 4-5, a first positioning hole 411 is formed on the slide rail 41, a second positioning hole 421 is formed on the slider 42, and when a central axis of the first positioning hole 411 and a central axis of the second positioning hole 421 coincide, positioning members are disposed in the first positioning hole 411 and the second positioning hole 421 to limit the slider 42 to move along the slide rail 41. Alternatively, the positioning member is a positioning pin or the like. Therefore, the positioning piece such as a positioning pin matched with the first positioning hole 411 and the second positioning hole 421 is arranged, so that the position of the moving skirt board 3 relative to the vehicle body 1 can be fixed, and the moving skirt board 3 is prevented from shaking during the crane.

Alternatively, there are a plurality of first positioning holes 411, and the plurality of first positioning holes 411 are arranged at intervals along the length direction of the slide rail 41. Thereby, the moving skirt 3 can have a plurality of opening degrees. For example, as shown in fig. 5, a first positioning hole 411 is formed at an outer end of the slide rail 41, and a second positioning hole 421 is spaced apart from the first positioning hole 411 and the second positioning hole 421 is located inside the first positioning hole 411 when the moving skirt 3 is located at the above-described first position. Here, it should be noted that the direction "inner" is understood to be a direction toward the longitudinal center axis of the chassis 11, and the opposite direction is defined as "outer". When the central axis of the first positioning hole 411 and the central axis of the second positioning hole 421 coincide, the moving skirt 3 is interposed between the first position and the second position (the position of the moving skirt 3 to the right in fig. 5). For example, in the example of fig. 2 and 4-5, the first positioning hole 411 is provided at the outer end (i.e., the end away from the center of the vehicle body 1) of the slide rail 41, the second positioning hole 421 is close to the middle of the slider 42 with respect to the first positioning hole 411, and when the moving skirt 3 is located at the first position, the first positioning hole 411 and the second positioning hole 421 are spaced apart in the length direction of the slide rail 41. So set up, need not to remove skirtboard 3 and open completely, only need satisfy the hoist installation can, convenient and fast, labour saving and time saving.

Further, as shown in fig. 1-2 and 4-5, the sliding block 42 and the moving skirt 3 can be connected by the mounting seat 8, so as to improve the reliability of the connection between the sliding block 42 and the moving skirt 3.

Of course, the invention is not limited thereto, and according to other embodiments of the invention, the moving mechanism may also be a rack and pinion mechanism or a screw-nut mechanism, etc. (not shown). Hereby it is also achieved that the moving skirt 3 can be moved smoothly between the first and second position. Moreover, a rack and pinion mechanism or a screw nut mechanism can be driven by a motor, so that automatic opening and closing of the moving skirt 3 can be realized.

According to some embodiments of the invention, with reference to fig. 2 and 4-6, the bottom of the underframe 11 is provided with a lift plate 5, the lift plate 5 corresponding to the moving skirt 3. For example, the lifter plate 5 is located approximately at the middle in the longitudinal direction of the corresponding moving skirt 3. When the vehicle needs to be lifted, the movable skirtboard 3 can be pulled out outwards to expose the vehicle lifting plate 5 at the bottom of the underframe 11, and then a lifting appliance can be installed, so that the vehicle can be lifted. In the process, the movable apron board 3 does not need to be disassembled, the service life of easily-damaged and consumable parts is prolonged, the problem of loss of parts does not exist, the workload of assembly and maintenance is greatly reduced, and the efficiency of the crane is improved.

Alternatively, as shown in fig. 3, the cross-sectional shape of the slide rail 41 is a hexagon, and the slide block 42 is formed with a slide groove adapted to the shape of the slide rail 41. Of course, the cross-sectional shape of the slide rail 41 may also be trapezoidal, octagonal, or i-shaped (not shown), and the like, and the sliding slot on the sliding block 42 is adapted to the cross-sectional shape of the slide rail 41. It is understood that the shapes of the sliding rail 41 and the sliding groove can be specifically set according to actual requirements to better meet the actual application.

Optionally, two moving mechanisms are arranged between the upper end of each moving skirt 3 and the underframe 11, and the two moving mechanisms are arranged at intervals along the length direction of the moving skirt 3. For example, referring to fig. 2 and fig. 4-5 and 11, two moving mechanisms are connected to the same moving skirt board 3, so that the moving skirt board 3 can be further ensured to be smooth in the moving process. Two moving mechanisms connecting the same moving skirt 3 are shown in fig. 2 and 4-5 for illustrative purposes, but it is obvious to a person skilled in the art after reading the technical solutions of the present application that the solutions can be applied to one or three or more moving mechanisms, which also fall within the scope of the present invention.

According to a further embodiment of the present invention, as shown in fig. 1-2, 4-5 and 7-8, a locking structure is provided between the lower end of the moving skirt 3 and the mounting plate 2, and the locking structure comprises: the lock comprises a lock catch 61 and a lock body, wherein the lock catch 61 is arranged on one of the mounting plate 2 and the moving skirt plate 3, the lock body is arranged on the other one of the moving skirt plate mounting plate 2 and the moving skirt plate 3, the lock body is provided with a bolt 62, the bolt 62 is detachably matched with the lock catch 61, the moving skirt plate 3 can move between a first position and a second position when the bolt 62 is separated from the lock catch 61, and the lower end of the moving skirt plate 3 is locked on the mounting plate 2 when the bolt 62 is matched with the lock catch 61. For example, referring to fig. 1 in combination with fig. 2, 4-5, the latch 61 may be provided at the bottom of the mounting plate 2, the latch 61 may be a hook-shaped structure bent downward from the bottom of the mounting plate 2 and toward a direction away from the moving skirt 3, the latch 62 may be horizontally rotatably provided on the inner surface of the bottom of the moving skirt 3, and the free end of the latch 62 may also be a generally hook-shaped structure. When spring bolt 62 and hasp 61 cooperation, the lower extreme of hasp 61 is colluded to the free end of spring bolt 62, and the lower extreme of removing skirtboard 3 is fixed on mounting panel 2, removes skirtboard 3 this moment and can not remove between primary importance and second place, can guarantee like this that the driving in-process removes skirtboard 3 and can not take place to rock, has guaranteed the security of driving a vehicle. When it is desired to open the moving skirt 3, the latch tongue 62 may be rotated, and the free end of the latch tongue 62 may be rotated away from the latch 61 (e.g., counterclockwise in fig. 4 and 5) to disengage the free end of the latch tongue 62 from the latch 61, and the moving skirt 3 may be pulled outwardly from the first position to the second position.

Optionally, the catch structure is a lock. The lock can be a common mechanical lock. Therefore, the lock can be opened by a key, the operation is very convenient, and time and labor are saved. And the lockset has simple structure and low cost.

According to some embodiments of the present invention, referring to fig. 1-2, 4-5, a push-pull bracelet 7 is provided on the moving skirt 3, the push-pull bracelet 7 moving the moving skirt 3 between the first position and the second position. So set up, further made things convenient for the maintenance personal to operate to can further improve and overhaul or examine efficiency a little. For example, as shown in fig. 2, 4 to 5, the push-pull bracelet 7 is located substantially in the middle of the moving skirt 3 in the longitudinal direction of the vehicle body 1, with the push-pull bracelet 7 between the two moving mechanisms.

Alternatively, the push-pull bracelet 7 is a groove formed at the lower end of the moving skirt 3. The groove may be formed by upwardly recessing a portion of the bottom surface of the lower end of the moving skirt 3. When it is desired to pull the moving skirt 3 outwards, a person's hand can snap into the recess to pull the moving skirt 3 out.

According to some embodiments of the present invention, as shown in fig. 1, the moving skirt panels 3 are plural, and the plural moving skirt panels 3 may be arranged in left-right symmetry along the longitudinal direction of the underframe 11, and accordingly, the moving mechanism and the locking structure may also be arranged in left-right symmetry, which facilitates the efficiency of the maintenance personnel to overhaul or check the rail vehicle 100, such as a tram, from both sides.

As shown in fig. 1 to 11, a rail vehicle 100, such as a tram, according to an embodiment of the second aspect of the present invention includes a vehicle body 1 and an apron assembly.

The vehicle body 1 includes an underframe 11 and a mounting plate 2, the mounting plate 2 is disposed below the underframe 11, and an opening is defined between the mounting plate 2 and the underframe 11. A skirt panel assembly is provided at the opening, the skirt panel assembly being in accordance with an embodiment of the above first aspect of the invention. Wherein the vehicle body 1 is adapted to travel on the track beam 200.

When the movable skirt panel 3 needs to be opened for maintenance or inspection of a rail vehicle 100 such as a tram, the lock body is opened by a key, the bolt 62 is separated from the lock catch 61, the push-pull bracelet 7 is pulled, and the movable skirt panel 3 is opened, so that a large space is formed between the movable skirt panel 3 and the vehicle body 1, and the vehicle can be maintained or inspected, as shown in fig. 5. The process of closing the moving skirt 3 is the reverse of the process of opening the moving skirt 3.

Therefore, according to the rail vehicle 100 such as a tramcar provided by the embodiment of the invention, the opening process of the movable skirt board 3 is time-saving and labor-saving, peripheral obstacles can be observed while opening the movable skirt board during the opening process, safety accidents are avoided, a wide space is provided for the overhaul or spot check of the rail vehicle 100 such as a tramcar after the movable skirt board is opened, the overhaul and maintenance are more convenient, and the overhaul or spot check efficiency of the rail vehicle 100 such as a tramcar is improved.

In addition, when the crane needs to install the lifting appliance, the lifting appliance can be installed by opening the movable skirt plate 3 to expose the lifting plate 5. In the process, the movable apron board 3 does not need to be completely opened, and only the installation of a lifting appliance is needed, so that the lifting appliance is convenient and fast, time and labor are saved, the assembly and maintenance workload is greatly reduced, and the efficiency of the crane is improved.

Alternatively, the skirt panels on a rail vehicle 100, such as a tram, may comprise the movable moving skirt panel 3 described above, but may also comprise immovable fixed skirt panels.

Other constructions and operations of a rail vehicle 100, such as a tram, according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An apron assembly adapted to be disposed on a vehicle body, the vehicle body including a chassis and a mounting plate, the mounting plate being disposed below the chassis and defining an opening therebetween;

characterized in that the apron assembly comprises:

at least one moving skirt panel disposed between the underframe and the mounting plate and movable between a first position and a second position, the moving skirt panel closing the opening when the moving skirt panel is in the first position, the moving skirt panel moving in its entirety away from the underframe and the mounting plate to open the opening during outward pulling of the moving skirt panel to move the moving skirt panel from the first position to the second position and the moving skirt panel being spaced apart from both the underframe and the mounting plate.

2. The skirt assembly of claim 1 wherein an upper end of each said moving skirt is connected to said undercarriage by at least one moving mechanism, each said moving mechanism comprising:

the sliding rail is fixedly connected to the bottom of the bottom frame;

the sliding block is movably arranged on the sliding rail and is connected with the upper end of the movable apron board,

when the sliding block moves along the sliding rail, the sliding block drives the movable apron board to move between the first position and the second position.

3. The skirt assembly of claim 2 wherein said slide rail has a first detent hole formed therein and said slide block has a second detent hole formed therein, said first detent hole and said second detent hole having a detent disposed therein to limit movement of said slide block along said slide rail when a central axis of said first detent hole and a central axis of said second detent hole coincide.

4. The skirt assembly of claim 3 wherein said first locating hole is a plurality of holes spaced along the length of said rail.

5. The skirt assembly of claim 2 wherein a bottom of said underframe is provided with a lift plate, said lift plate corresponding to said moving skirt.

6. The skirt assembly of claim 2 wherein two of said moving mechanisms are provided between an upper end of each of said moving skirt panels and said underframe, said moving mechanisms being spaced apart along a length of said moving skirt panels.

7. A skirting board assembly according to any of the claims 1-6, characterized in that between the lower end of said moving skirting board and said mounting plate there is provided a locking structure comprising:

a latch disposed on one of the mounting plate and the moving skirt plate;

a lock body provided on the other of the mounting plate and the moving skirt plate, the lock body having a latch bolt detachably engaged with the locker,

the movable skirt board is movable between the first position and the second position when the tongue is separated from the buckle, and the lower end of the movable skirt board is locked to the mounting plate when the tongue is engaged with the buckle.

8. The skirt assembly of claim 1 wherein a push-pull bracelet is provided on said moving skirt, said push-pull bracelet moving said moving skirt between said first position and said second position.

9. The skirt assembly of claim 1, wherein the moving skirt is a plurality of moving skirts, the plurality of moving skirts being arranged in left-right symmetry along a longitudinal direction of the underframe.

10. A rail vehicle, comprising:

the vehicle comprises a vehicle body and a vehicle body, wherein the vehicle body comprises a bottom frame and an installation plate, the installation plate is arranged below the bottom frame, and an opening is defined between the installation plate and the bottom frame;

a skirt assembly disposed at the opening, the skirt assembly being in accordance with any one of claims 1-9.

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