Flatcar

Abstract

The invention discloses a flatcar which comprises a flatcar body, a trolley body, a lifting device, a lifting device, a lifting device and a lifting device, and the trolley body is provided with a bearing surface for bearing cargoes; the crawling ladder assembly comprises a crawling ladder and a driving device, and the crawling ladder is movably mounted at one end of the bearing surface; the crawling ladder has an unfolded state and a folded state, in the folded state, the crawling ladder is stored in the trolley body, in the unfolded state, the crawling ladder is unfolded in the length direction of the flatcar to be connected with the bearing face, and the crawling ladder is suitable for being in lap joint with the ground; the driving device is installed on the vehicle body and comprises an air cylinder assembly, the air cylinder assembly is used for driving the ladder stand to be switched between the folded state and the unfolded state, the flat vehicle can control the ladder stand through air pressure, so that an electromagnetic valve and a power source do not need to be arranged, the structure is simple, the ladder stand does not need to be manually folded and unfolded, and the working efficiency is improved. The labor intensity is reduced, and the use safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flat cars, and in particular to a flat car. Background Art

[0002] In the related art, a flat car includes a car body and a ladder, and the ladder is rotatably connected to the car body. However, the existing ladder is hydraulically controlled or manually operated. If hydraulic control is used, a solenoid valve and a power supply must be provided, otherwise the ladder cannot be unfolded or folded. If manual operation is used, the work intensity is high and there are safety risks. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a flat car that can control the ladder by air pressure, so that it does not need to be equipped with a solenoid valve and a power supply, has a simple structure, and does not require manual retraction and deployment of the ladder, which is conducive to reducing labor intensity and improving safety in use.

[0004] According to an embodiment of the present application, the flat car includes: a car body, the car body has a load-bearing surface for carrying goods; a ladder assembly, the ladder assembly includes a ladder and a drive device, and the ladder is movably mounted on one end of the load-bearing surface; the ladder has an unfolded state and a stowed state, in the stowed state, the ladder is stowed in the car body, and in the unfolded state, the ladder is unfolded in the length direction of the flat car and connected to the load-bearing surface, and the ladder is suitable for overlapping with the ground; the drive device is installed on the car body and includes a cylinder assembly, and the cylinder assembly is used to drive the ladder to switch between the stowed state and the unfolded state.

[0005] According to the flat car of the embodiment of the present application, a cylinder assembly is provided so that the ladder can be driven by the cylinder assembly to switch between the storage state and the deployment state. In this way, the ladder can be controlled by air pressure, and there is no need to be equipped with a solenoid valve and a power supply. The structure is simple and there is no need for manual folding and unfolding of the ladder, which is beneficial to reducing labor intensity and improving safety of use.

[0006] According to the flat car of some embodiments of the present application, the cylinder assembly includes a cylinder and a front fork, the cylinder is installed on the vehicle body, one end of the front fork is connected to the output end of the cylinder, and the other end of the front fork is hinged to the ladder.

[0007] According to some embodiments of the flat car of the present application, the driving device includes an air tank, which is installed on the car body and is used to supply air to the cylinder. The air inlet of the air tank is connected to a connecting pipe, and the connecting pipe is suitable for connecting with the brake main pipe of the flat car.

[0008] According to the flat car in some embodiments of the present application, a filter is provided in the connecting pipe.

[0009] According to the flat car of some embodiments of the present application, a one-way valve is provided in the connecting pipe.

[0010] The flat car according to some embodiments of the present application further includes: a reinforcement device, one end of which is connected to the car body and the other end is suitable for being detachably connected to the ladder, and the reinforcement device is configured to be connected to the ladder in the storage state.

[0011] According to the flat cart of some embodiments of the present application, the reinforcement device includes an adjusting member and a chain, one end of the adjusting member is connected to the vehicle body, the other end of the adjusting member is telescopically connected to the chain, and the chain is suitable for being detachably connected to the ladder.

[0012] According to the flat car of some embodiments of the present application, a plurality of the ladder assemblies are provided, and the plurality of the ladder assemblies are spaced apart in the width direction of the flat car.

[0013] According to some embodiments of the flat car of the present application, the flat car further includes: a control cabinet, which is installed on the car body and connected to the driving device of at least one of the ladder assemblies, and the control cabinet is used to control the driving device to be turned on or off.

[0014] According to the flat car of some embodiments of the present application, two control cabinets are provided, and the two control cabinets are respectively arranged on both sides of the flat car in the width direction.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of a flat car group according to some embodiments of the present application;

[0018] Figure 2 Schematic diagram of a flat car in some embodiments of the present application Figure 1 ;

[0019] Figure 3 Schematic diagram of a flat car in some embodiments of the present application Figure 2 ;

[0020] Figure 4 This is a partial enlarged view of the ladder of a flat car in some embodiments of the present application;

[0021] Figure 5 A schematic diagram of a ladder of a flat car in some embodiments of the present application;

[0022] Figure 6 A schematic diagram of a cylinder of a flat car in some embodiments of the present application;

[0023] Figure 7 A schematic diagram of a cylinder assembly of a flat car according to some embodiments of the present application;

[0024] Figure 8 This is a schematic diagram of a reinforcement device for a flat car according to some embodiments of the present application.

[0025] Reference numerals:

[0026] Flat car group 100;

[0027] Flat car 10; loading and unloading flat car 101, transport flat car 102;

[0028] Vehicle body 1, bearing surface 11, ladder assembly 2, ladder 21, ladder bushing 211, steel frame side beam 212, steel frame cross beam 213, steel frame middle beam 214, anti-slip strip 215;

[0029] Driving device 22, cylinder assembly 221, cylinder 2211, front fork 2212,

[0030] Gas storage tank 2213, cut-off ball valve 2214, connecting pipe 2215, mounting seat 2216;

[0031] Reinforcement device 3, adjustment member 31, chain 32, shackle 33;

[0032] Control cabinet 4. DETAILED DESCRIPTION

[0033] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0034] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0035] In the related art, the flat car 10 includes a car body 1 and a ladder 21, and the ladder 21 is rotatably connected to the car body 1. However, the existing ladder 21 is hydraulically controlled or manually operated. If hydraulic control is used, a solenoid valve and a power supply must be provided, otherwise the ladder 21 cannot be unfolded and folded. If manual operation is used, the work intensity is high and there are safety risks.

[0036] In this regard, the present application proposes a flat car 10, which is equipped with a cylinder assembly 221 so that the ladder 21 can be driven by the cylinder assembly 221 to switch between the storage state and the deployment state. In this way, the ladder 21 can be controlled by air pressure, so that there is no need to be equipped with a solenoid valve and a power supply. The structure is simple and there is no need for manual folding and unfolding of the ladder 21, which is beneficial to reducing labor intensity and improving safety of use.

[0037] like Figure 1 As shown, the flatcar 10 can form a flatcar group 100, and the flatcar group 100 can be provided with multiple flatcars 10, and the multiple flatcars 10 are connected in sequence, wherein the flatcar 10 located at the front of the car and the parking position is a loading and unloading flatcar 101, and the one located in the middle position is a transport flatcar 102, and the model of the flatcar 10 can be a NX70A flatcar.

[0038] like Figure 2 As shown, the flat car 10 includes: a car body 1, the car body 1 has a load-bearing surface 11 for carrying goods, the load-bearing surface 11 can be a plane, and a steel plate for forming the load-bearing surface 11 can be provided on the car body 1 to enhance the stability of the load-bearing surface 11, wherein the goods can be motor vehicles or containers, etc., which are not limited here.

[0039] In some implementations, a binding device may be provided on the load-bearing surface 11, and the binding device is used to bind and fix the goods. The binding device may be an iron rope, and both ends of the iron rope may be slidably installed on the load-bearing surface 11, so that the position of the iron rope can be changed by sliding the iron rope on the load-bearing surface 11, thereby better binding and fixing the goods.

[0040] In some implementations, a limiting device may be provided on the load-bearing surface 11. The limiting device can be detachably mounted on the load-bearing surface 11, and the limiting device is used to limit the position of goods such as containers. The limiting device can be a bolt or other device, which is not limited here. The limiting device and the load-bearing surface 11 can be connected by bolt connection, card connection, plug-in or other detachable methods, so as to facilitate flexible selection according to needs.

[0041] like Figure 2 As shown, the flat car 10 also includes: a ladder assembly 2, the ladder assembly 2 includes a ladder 21 and a drive device 22, the ladder 21 is movably mounted on one end of the bearing surface 11; the ladder 21 has an unfolded state and a stowed state, in the stowed state, as shown Figure 2 As shown, the ladder 21 is stored in the vehicle body 1 and in the unfolded state, as shown in FIG. Figure 3 As shown, the ladder 21 is unfolded in the length direction of the flat car 10 and connected to the bearing surface 11, and the ladder 21 is suitable for overlapping with the ground.

[0042] In this way, the driving device 22 can drive the ladder 21 to switch between the unfolded state and the stowed state, and when the ladder 21 is in the stowed state, Figure 2 and Figure 4 As shown, the ladder 21 is stored in the vehicle body 1 to reduce the impact on the external dimensions of the vehicle body 1. For example, when the ladder 21 is in the stored state, the projection of the ladder 21 on the vehicle body 1 can fall on the vehicle body 1 in the height direction of the vehicle body 1. In this way, the impact on the length or width of the vehicle body 1 can be reduced.

[0043] At the same time, when the ladder 21 is in the unfolded state, the ladder 21 is unfolded in the length direction of the flat car 10 and connected to the load-bearing surface 11, and the ladder 21 is suitable for overlapping with the ground. At this time, the motor vehicle can climb to the load-bearing surface 11 through the ladder 21, thereby realizing the self-wheel loading and unloading of the motor vehicle, thereby reducing the difficulty of loading and unloading of the motor vehicle.

[0044] It should be noted that, in the related art, when a motor vehicle is loaded onto a flat car 10 , it is usually necessary to use a crane or a platform at the same height as the flat car 10 , which makes the loading of the motor vehicle difficult.

[0045] Therefore, a ladder 21 is provided in the present application to assist in loading and unloading of motor vehicles, and the state of the ladder 21 can be switched to meet the user's usage needs.

[0046] Furthermore, the driving device 22 is installed on the vehicle body 1 and includes a cylinder assembly 221, and the cylinder assembly 221 is used to drive the ladder 21 to switch between the storage state and the deployment state.

[0047] That is to say, the power source for switching the ladder 21 between the stowed state and the deployed state is the cylinder assembly 221. In this way, the ladder 21 can be controlled by air pressure, so there is no need to be equipped with a solenoid valve and a power supply. The structure is simple and there is no need for manual folding and unfolding of the ladder 21, which is beneficial to reducing labor intensity and improving safety of use.

[0048] According to the flat car 10 of the embodiment of the present application, the car body 1 has a bearing surface 11 for carrying goods, and the bearing surface 11 can be a plane. The ladder assembly 2 includes a ladder 21 and a driving device 22. The ladder 21 can be movably installed at one end of the bearing surface 11; the ladder 21 has an unfolded state and a stored state. In the stored state, the ladder 21 is stored in the car body 1. In the unfolded state, the ladder 21 is unfolded in the length direction of the flat car 10 and connected to the bearing surface 11, and the ladder 21 is suitable for overlapping with the ground; the driving device 22 is installed on the car body 1 and includes a cylinder assembly 221, and the cylinder assembly 221 is used to drive the ladder 21 to switch between the stored state and the unfolded state. Therefore, by setting the cylinder assembly 221, it is convenient to drive the ladder 21 to switch between the stored state and the unfolded state by the cylinder assembly 221. In this way, the control of the ladder 21 can be achieved by air pressure, so that there is no need to be equipped with an electromagnetic valve and a power supply, the structure is simple, and there is no need for manual retraction and release of the ladder 21, which is conducive to reducing labor intensity and improving safety in use.

[0049] In some embodiments, Figure 5 As shown, the ladder 21 includes a ladder 21 bushing 211, a steel frame side beam 212, a steel frame cross beam 213, a steel frame middle beam 214 and an anti-skid strip 215. The ladder 21 bushing 211, the steel frame side beam 212, the steel frame cross beam 213 and the steel frame middle beam 214 are connected to each other to form the main body of the ladder 21. The anti-skid strip 215 is arranged on the main body of the ladder 21, so that during the process of loading and unloading the motor vehicle on the flat car 10, the motor vehicle can be prevented from slipping through the anti-skid strip 215, thereby ensuring the stability of the motor vehicle during the process of loading and unloading the motor vehicle on the flat car 10.

[0050] In some embodiments, Figure 6 As shown, the cylinder assembly 221 includes a cylinder 2211 and a front fork 2212 . The cylinder 2211 is installed on the vehicle body 1 , one end of the front fork 2212 is connected to the output end of the cylinder 2211 , and the other end of the front fork 2212 is hinged to the ladder 21 .

[0051] Therefore, the front fork 2212 can be driven to move by the cylinder 2211, so that the front fork 2212 drives the ladder 21 to rotate around the vehicle body 1, thereby realizing the switching of the ladder 21 between the storage state and the deployment state. In this way, the ladder 21 can be controlled by air pressure, so that there is no need to be equipped with a solenoid valve and a power supply. The structure is simple, and there is no need for manual folding and unfolding of the ladder 21, which is beneficial to reducing labor intensity and improving safety of use.

[0052] In some embodiments, a mounting seat 2216 is provided at one end of the cylinder 2211 away from the front fork 2212, and the mounting seat 2216 is used to be hinged to the vehicle body 1. Since the front fork 2212 rotates synchronously with the ladder 21, in order to reduce the torque at the connection between the cylinder 2211 and the front fork 2212, the cylinder 2211 is hinged to the vehicle body 1 through the mounting seat 2216, so that the cylinder 2211 can also rotate synchronously with the ladder 21, thereby ensuring the connection stability of the front fork 2212 of the cylinder 2211.

[0053] In some embodiments, Figure 7 As shown, the driving device 22 also includes an air tank 2213, which is installed on the vehicle body 1 and is used to supply air to the cylinder 2211. The air inlet of the air tank 2213 is connected to a connecting pipe 2215, and the connecting pipe 2215 is suitable for connecting to the brake main pipe of the flat car 10.

[0054] Thus, compressed air can be supplied to the cylinder 2211 through the brake main pipe, and there is no need to set up the air intake of the cylinder 2211 separately, which is beneficial to simplify the setting of the air intake of the cylinder 2211 and reduce the difficulty of the air intake of the cylinder 2211.

[0055] In some embodiments, Figure 7 As shown, a shutoff ball valve 2214 is provided on the connecting pipe 2215 .

[0056] Therefore, the on-off control of the connecting pipe 2215 can be achieved through the cut-off ball valve 2214 when the compressed gas enters the gas storage tank 2213 through the connecting pipe 2215, thereby achieving the control of the operation of the cylinder 2211.

[0057] In some embodiments, a filter is provided in the connecting tube 2215 .

[0058] In this way, impurities such as dust and moisture in the compressed air can be filtered out by the filter before the compressed gas enters the gas storage tank 2213 through the connecting pipe 2215, so as not to affect the performance of the cylinder 2211.

[0059] In some embodiments, two ladder assemblies 2 are provided, and the two ladder assemblies 2 are correspondingly provided with two air storage tanks 2213. The two air storage tanks 2213 are connected to the brake main pipe via a three-way valve, so that the structural setting is simplified and the integration is improved.

[0060] In some embodiments, a one-way valve is provided in the connecting pipe 2215 .

[0061] Therefore, the one-way flow of compressed air can be ensured by the one-way valve, that is, it is ensured that the compressed air can only enter the air storage tank 2213 from the brake main pipe, thereby ensuring the stability of the use of the cylinder 2211.

[0062] In some embodiments, Figure 4 As shown, the flat car 10 further includes: a reinforcement device 3, one end of which is connected to the car body 1 and the other end of which is suitable for being detachably connected to the ladder 21, and the reinforcement device 3 is configured to be connected to the ladder 21 in the storage state.

[0063] Therefore, when the ladder 21 is in the storage state, the reinforcement device 3 is connected to the ladder 21 to limit the ladder 21, reduce the shaking of the ladder 21, and avoid misoperation of the ladder 21, thereby improving the stability of the ladder 21 during transportation of the flat car 10.

[0064] Accordingly, when the ladder 21 needs to be switched to the deployed state, the reinforcement device 3 and the ladder 21 need to be unlocked first, so as to ensure that the ladder 21 can be switched from the stored state to the deployed state.

[0065] In some embodiments, Figure 8 As shown, the reinforcement device 3 includes an adjusting member 31 and a chain 32 , one end of the adjusting member 31 is connected to the vehicle body 1 , and the other end of the adjusting member 31 is telescopically connected to the chain 32 , and the chain 32 is suitable for being detachably connected to the ladder 21 .

[0066] Therefore, when the reinforcement device 3 needs to be connected to the ladder 21 , the total length of the reinforcement device 3 can be adjusted by telescoping the adjustment member 31 to better match the ladder 21 , thereby reducing the difficulty of connecting the reinforcement device 3 to the ladder 21 .

[0067] In some embodiments, Figure 8 As shown, a shackle 33 is provided at one end of the chain 32 away from the adjusting member 31, and the shackle 33 is used to be detachably connected to the ladder 21. In this way, when the ladder 21 is in the storage state, the shackle 33 is connected to the ladder 21, so that the reinforcement device 3 can limit the ladder 21, reduce the shaking of the ladder 21, and avoid misoperation of the ladder 21, thereby improving the stability of the ladder 21 during transportation of the flat car 10.

[0068] Accordingly, when the ladder 21 needs to be switched to the deployed state, the shackle 33 and the ladder 21 need to be unlocked first, so as to ensure that the ladder 21 can be switched from the stored state to the deployed state.

[0069] The connection between the shackle 33 and the ladder 21 may be by snap connection, plug connection or bolt connection, etc., which is not limited here.

[0070] In some embodiments, Figure 2 As shown, a plurality of ladder assemblies 2 are provided, and the plurality of ladder assemblies 2 are spaced apart in the width direction of the flat car 10 .

[0071] Therefore, by disposing a plurality of ladder assemblies 2, the motor vehicle can more stably climb to the bearing surface 11 through a plurality of ladders 21 during self-wheel loading and unloading, thereby reducing the difficulty of self-wheel loading and unloading of the motor vehicle.

[0072] For example Figure 2 As shown, two ladder assemblies 2 are provided, and the two ladder assemblies 2 are spaced apart in the width direction of the flat car 10, and the distance between the two ladder assemblies 2 is generally the distance between the left wheel and the right wheel of the motor vehicle. In this way, when the motor vehicle is self-wheeled loading and unloading, the left wheel and the right wheel of the motor vehicle can respectively run on the corresponding ladder assemblies 2, and then climb to the bearing surface 11 more stably, so as to reduce the difficulty of self-wheeled loading and unloading of the motor vehicle.

[0073] Thus, by providing a plurality of ladder assemblies 2, the motor vehicle can more stably climb to the load-bearing surface 11 through the plurality of ladders 21 when loading and unloading by itself.

[0074] In some embodiments, Figure 3 As shown, the flat car 10 further includes: a control cabinet 4, which is mounted on the car body 1 and connected to the driving device 22 of at least one ladder assembly 2, and the control cabinet 4 is used to control the opening or closing of the driving device 22. Among them, a manual valve may be provided in the control cabinet 4, and the operator controls whether the cylinder 2211 is inflated by operating the manual valve to control the deployment and folding of the ladder 21.

[0075] Therefore, by setting the control cabinet 4, the drive device 22 can be controlled through the control cabinet 4, and then the ladder 21 can be controlled, the automation level of the flat car 10 can be improved, and the control difficulty of the drive device 22 can be reduced. Figure 3 As shown, the control cabinet 4 is installed on the side of the vehicle body 1 to avoid occupying the space above the load-bearing surface 11. At the same time, it can reduce the interference between the control cabinet 4 and the goods, and it is convenient for the staff to stand on the side of the flat car 10 to control the drive device 22, and then control the ladder 21, thereby reducing the control difficulty and helping to reduce the safety risks during operation.

[0076] In some embodiments, two control cabinets 4 are provided, and the two control cabinets 4 are respectively arranged on both sides of the flat car 10 in the width direction.

[0077] In this way, the staff can stand on any side in the width direction of the flat car 10 to control the drive device 22, and then control the ladder 21, thereby reducing the control difficulty and helping to reduce the safety risks during operation.

[0078] In some embodiments, each control cabinet 4 is provided with a manual valve, and an operator can control the deployment and folding of the ladder 21 by operating the manual valve on either side of the flat car 10 .

[0079] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0081] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0082] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A flat car (10), characterized in that: include: A vehicle body (1), the vehicle body (1) having a carrying surface (11) for carrying goods; A ladder assembly (2), the ladder assembly (2) comprising a ladder (21) and a drive device (22), the ladder (21) being movably mounted on one end of the bearing surface (11); The ladder (21) has an unfolded state and a stowed state. In the stowed state, the ladder (21) is stowed in the vehicle body (1). In the unfolded state, the ladder (21) is unfolded in the length direction of the flat vehicle (10) and connected to the bearing surface (11), and the ladder (21) is suitable for overlapping the ground. The driving device (22) is installed on the vehicle body (1) and comprises a cylinder assembly (221), wherein the cylinder assembly (221) is used to drive the ladder (21) to switch between the storage state and the deployment state.

2. The flat car (10) according to claim 1, characterized in that: The cylinder assembly (221) comprises a cylinder (2211) and a front fork (2212); the cylinder (2211) is mounted on the vehicle body (1); one end of the front fork (2212) is connected to an output end of the cylinder (2211); and the other end of the front fork (2212) is hinged to the ladder (21).

3. The flat car (10) according to claim 2, characterized in that: The driving device (22) further comprises an air tank (2213), wherein the air tank (2213) is mounted on the vehicle body (1) and is used to supply air to the cylinder (2211), and an air inlet of the air tank (2213) is connected to a connecting pipe (2215), and the connecting pipe (2215) is suitable for connecting to a brake main pipe of the flat car (10).

4. The flat car (10) according to claim 3, characterized in that: A filter is provided in the connecting pipe (2215).

5. The flat car (10) according to claim 3, characterized in that: A one-way valve is provided in the connecting pipe (2215).

6. The flat car (10) according to claim 1, characterized in that: Also includes: A reinforcement device (3), one end of which is connected to the vehicle body (1) and the other end of which is suitable for being detachably connected to the ladder (21), and the reinforcement device (3) is configured to be connected to the ladder (21) in the storage state.

7. The flat car (10) according to claim 6, characterized in that: The reinforcement device (3) comprises an adjusting member (31) and a chain (32), one end of the adjusting member (31) is connected to the vehicle body (1), the other end of the adjusting member (31) is telescopically connected to the chain (32), and the chain (32) is suitable for being detachably connected to the ladder (21).

8. The flat car (10) according to claim 1, characterized in that: A plurality of the ladder assemblies (2) are provided, and the plurality of ladder assemblies (2) are spaced apart in the width direction of the flat car (10).

9. The flat car (10) according to claim 8, characterized in that: Also includes: A control cabinet (4), the control cabinet (4) being mounted on the vehicle body (1) and connected to the driving device (22) of at least one of the ladder assemblies (2), the control cabinet (4) being used to control the driving device (22) to be turned on or off.

10. The flat car (10) according to claim 9, characterized in that: Two control cabinets (4) are provided, and the two control cabinets (4) are respectively arranged on both sides of the flat car (10) in the width direction.

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