Anti-overturning device for mining flat car

Abstract

The invention provides a mining flat car anti-overturning device which comprises a base assembly and a balance assembly, the base assembly is used for being connected with a track of a flat car, the balance assembly comprises an elastic piece and a connecting part, the connecting part is connected with the flat car, and the elastic piece is connected between the base assembly and the connecting part. The balance assembly has a balance state, in the balance state, one of the first balance set and the second balance set applies supporting force pointing to the flat car to the flat car, and the other one of the first balance set and the second balance set applies pulling force pointing to the base assembly to the flat car, so that the flat car is in a stress balance state. The anti-overturning device for the mining flat car has the advantages of being simple in structure, convenient to use and high in safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine flat cars, in particular to a mine flat car anti-overturning device. BACKGROUND

[0002] Coal mine production needs to transport materials to the well, and the road surface of the coal mine is uneven, which causes the material to overturn during loading and unloading on the flat car, resulting in the scattering of the material and the safety of the operator being threatened.

[0003] In related technologies, during the loading and unloading of the mine flat car, the flat car chassis moves along the track, when large materials are loaded and unloaded on one side of the flat car, the center of gravity of the flat car deviates, the overturning angle of the other side of the flat car gradually increases, which easily leads to instability of the flat car chassis and the risk of overturning, causing safety accidents, damaging equipment, and wasting manpower and resources. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, an embodiment of the present application proposes a mine flat car anti-overturning device, which has the advantages of simple structure, convenient use, and high safety.

[0006] The mine flat car anti-overturning device according to an embodiment of the present application comprises:

[0007] a base assembly for connecting with the track of the flat car;

[0008] a balancing assembly comprising an elastic member and a connecting portion, the connecting portion being connected with the flat car, and the elastic member being connected between the base assembly and the connecting portion, the balancing assembly being a plurality of, the plurality of balancing assemblies being divided into a first balancing group and a second balancing group, and each balancing group comprising a plurality of balancing assemblies, the first balancing group and the second balancing group being arranged along the width direction of the flat car, and the plurality of balancing assemblies in one balancing group being arranged along the extension direction of the track of the flat car,

[0009] the balancing assembly having a balanced state, in which one of the first balancing group and the second balancing group applies a support force to the flat car, and the other of the first balancing group and the second balancing group applies a pulling force to the flat car, so that the flat car is in a force balanced state.

[0010] The mining flat car anti-overturning device effectively solves the problem of flat car overturning caused by the center of gravity deviation during the loading and unloading of materials, improves the safety of material transportation, reduces the occurrence of safety accidents, saves manpower and resources, and improves production efficiency.

[0011] In some embodiments, the base assembly comprises a base body and a clamping assembly connected to the base and located below the base, the clamping assembly being used to clamp the rail of the flat car.

[0012] In some embodiments, the clamping assembly comprises a first clamping part and a second clamping part, at least one of the first clamping part and the second clamping part being movable along the width direction of the flat car.

[0013] In some embodiments, the first clamping part has a first fitting part located on one side of the first clamping part adjacent to the second clamping part, the second clamping part has a second fitting part located on one side of the second clamping part adjacent to the second clamping part, the clamping assembly is connected to the rail of the flat car, and the first fitting part and the second fitting part are fitted in the groove of the rail of the flat car.

[0014] In some embodiments, the elastic members are multiple, and the multiple elastic members are arranged in intervals along the length direction of the flat car.

[0015] In some embodiments, the multiple elastic members are divided into multiple elastic member groups, one elastic member group comprising multiple elastic members, and the multiple elastic member groups being arranged in intervals along the width direction of the flat car.

[0016] In some embodiments, in the direction from the inner side to the outer side of the rail of the flat car, the elastic force of the multiple elastic member groups gradually increases.

[0017] In some embodiments, the connecting part comprises a fixed plate, a movable plate and a connecting member, the fixed plate being connected to the upper end of the elastic member, the fixed plate, part of the flat car and the movable plate being arranged in sequence in the height direction of the flat car, and the connecting member being used to connect the movable plate and the fixed plate through the fixed plate.

[0018] In some embodiments, multiple first fitting holes are formed on the fixed plate and arranged in intervals along the width direction of the flat car, multiple second fitting holes are formed on the movable plate and arranged in intervals along the width direction of the flat car, and the connecting member is adapted with at least one first fitting hole and at least one second fitting hole.

[0019] In some embodiments, the mine flat car anti-overturning device of the present application further comprises a moving part connected to the base assembly and located on the side of the base assembly away from the flat car, the moving part having a handle. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a use schematic diagram of the mine flat car anti-overturning device of the present application.

[0021] Figure 2 is a structure schematic diagram of the mine flat car anti-overturning device of the present application.

[0022] REFERENCE SIGNS:

[0023] 100, flat car, 200, track,

[0024] 10, base assembly, 101, base body, 102, clamping assembly, 1021, first clamping part, 1022, second clamping part, 1023, first matching part, 1024, second matching part,

[0025] 20, balancing assembly, 20a, first balancing group, 20b, second balancing group, 201, elastic member, 202, connecting part, 2021, fixed plate, 2022, movable plate, 2023, connecting member,

[0026] 30, moving part, 301, handle. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0028] As Figure 1 and Figure 2 shown, the mine flat car 100 anti-overturning device of the present application comprises a base assembly 10 and a balancing assembly 20.

[0029] The base assembly 10 is used to connect with the track 200 of the flat car 100. The balancing assembly 20 includes the elastic member 201 and the connecting part 202, the connecting part 202 is connected with the flat car 100, and the elastic member 201 is connected between the base assembly 10 and the connecting part 202. The balancing assembly 20 is multiple, the multiple balancing assemblies 20 are divided into the first balancing group 20a and the second balancing group 20b, and each balancing group includes multiple balancing assemblies 20. The multiple balancing groups are arranged in the width direction of the flat car 100, and the multiple balancing assemblies 20 in one balancing group are arranged in the extension direction of the track 200 of the flat car 100. The balancing assembly 20 has a balanced state, in which one of the first balancing group 20a and the second balancing group 20b applies a support force to the flat car 100, and the other of the first balancing group 20a and the second balancing group 20b applies a pulling force to the flat car 100, so that the flat car 100 is in a force balanced state.

[0030] Specifically, as shown in Figure 1 and Figure 2 The base assembly 10 is used to connect with the track 200 of the flat car 100, and provides stable support for the entire anti-rollover device. The connection between the base assembly 10 and the track 200 is firm, which ensures the stability and safety of the anti-rollover device during the operation of the flat car 100. The balancing assembly 20 includes the elastic member 201 and the connecting part 202, the lower end of the elastic member 201 is connected with the base assembly 10, and the upper end of the elastic member 201 is connected with the connecting part 202. The connecting part 202 is connected with part of the flat car 100, so that the offset of the flat car 100 can act on the elastic member 201 through the connecting part 202, thereby adjusting and maintaining the balance state of the flat car 100 during loading and unloading by using the elastic member 201.

[0031] It can be understood that the elastic member 201 is connected between the base assembly 10 and the connecting part 202, which plays a role in buffering and smoothly adjusting the center of gravity. When the flat car 100 is loading and unloading materials, the elastic member 201 can absorb and alleviate the center of gravity offset caused by the change of the weight of the materials, so as to maintain the balance of the flat car 100. The connecting part 202 is connected with the flat car 100, so that the balancing assembly 20 can apply a support force and a pulling force to the flat car 100 to achieve force balance. The design of the connecting part 202 should ensure that it can withstand a certain force to maintain stability during the entire loading and unloading process.

[0032] In the balanced state, one of the first balanced group 20a and the second balanced group 20b applies a support force to the platform truck 100, and the other applies a pulling force to the platform truck 100. For example, if the right side of the platform truck 100 is offset to the right side and presses the second balanced group 20b, the elastic member 201 in the second balanced group 20b is supported by the platform truck 100, and correspondingly, the elastic member 201 can also apply a corresponding support force to the platform truck 100; while the left side of the platform truck 100 will be upwardly offset, and the elastic member 201 in the first balanced group 20a will be pulled by the platform truck 100, that is, the elastic member 201 will apply a pulling force to the platform truck 100, thereby, under the action of the forces of the first balanced group 20a and the second balanced group 20b, the platform truck 100 is kept in a balanced state as much as possible. This balanced state ensures that the platform truck 100 will not overturn due to the shift of the center of gravity during loading and unloading, and improves the safety performance.

[0033] Among them, the plurality of balanced assemblies 20 are divided into the first balanced group 20a and the second balanced group 20b, and each balanced group includes a plurality of balanced assemblies 20. This grouping design makes the balanced assemblies 20 arranged in the width direction of the platform truck 100, so that the balanced assemblies 20 can work cooperatively during loading and unloading, achieving better balancing effect. In addition, this interval arrangement makes the elastic member 201 evenly distributed on the bottom surface of the platform truck 100, ensuring that the platform truck 100 can be stably supported and adjusted during the entire loading and unloading process, further reducing the risk of overturning.

[0034] Therefore, the mine platform truck 100 anti-overturning device of the embodiment of the present application effectively solves the problem of overturning of the platform truck 100 caused by the shift of the center of gravity during material loading and unloading, improves the safety of material transportation, reduces the occurrence of safety accidents, saves manpower and material resources, and improves production efficiency.

[0035] In some embodiments, the base assembly 10 includes a base body 101 and a clamping assembly 102, the clamping assembly 102 is connected with the base and located below the base, and the clamping assembly 102 is used to clamp the track 200 of the platform truck 100.

[0036] Specifically, as shown in Figure 1 and Figure 2 The base body 101 is the basic part of the anti-overturning device, which is used to carry the balanced assembly 20 and other related structures, and is connected with the clamping assembly 102. The base body 101 is usually designed to be strong and durable, such as made of high-strength stainless steel material, so as to be able to withstand various forces generated during loading and unloading, and ensure the stability of the entire device.

[0037] The clamping assembly 102 is connected to the base body 101 and is located below the base, mainly used for fixing and clamping the track 200 of the flat car 100, to ensure the close connection between the anti-rollover device and the track 200.

[0038] It can be understood that the clamping assembly 102 can firmly grasp the track 200, preventing displacement of the device due to vibration of the track 200 during operation of the flat car 100, thereby maintaining the stability of the anti-rollover device. The design of the clamping assembly 102 can allow quick installation and disassembly, adapt to different sizes and shapes of the track 200, and increase the versatility and scope of application of the device. The use of the clamping assembly 102 reduces the safety hazards caused by the gap between the track 200 and the base, and improves the safety factor during material transportation.

[0039] Optionally, the clamping assembly 102 is usually made of wear-resistant materials such as high-strength stainless steel, which can be used for a long time in harsh coal mine environments, reducing the frequency of maintenance and replacement.

[0040] In some embodiments, the clamping assembly 102 includes a first clamping part 1021 and a second clamping part 1022, and at least one of the first clamping part 1021 and the second clamping part 1022 is movable along the width direction of the flat car 100.

[0041] Specifically, as shown in Figure 1 and Figure 2 , the first clamping part 1021 and the second clamping part 1022 are components of the clamping assembly 102, and are placed opposite to each other during use for clamping and fixing the track 200 of the flat car 100.

[0042] It can be understood that at least one clamping part is movable along the width direction of the flat car 100, which enables the clamping assembly 102 to adapt to tracks 200 of different widths and flatness, increasing the applicability of the device. By adjusting the movable clamping part, the center line of the clamping assembly 102 can be centered on the track 200, which helps to maintain the balance and stability of the entire anti-rollover device.

[0043] That is, the movable clamping part can adapt to flat cars 100 of different models and specifications, as well as tracks 200 of different widths, so that the anti-rollover device can be applied to a wider range of scenarios. During installation, the movable clamping part can be quickly adjusted into position, reducing installation time and improving work efficiency.

[0044] In some embodiments, the first clamping part 1021 has a first matching part 1023 located on a side of the first clamping part 1021 adjacent to the second clamping part 1022, and the second clamping part 1022 has a second matching part 1024 located on a side of the second clamping part 1022 adjacent to the first clamping part 1021. The clamping assembly 102 is connected to the track 200 of the flat car 100, and the first matching part 1023 and the second matching part 1024 are matched in the groove of the track 200 of the flat car 100.

[0045] Specifically, as shown in Figure 1 and Figure 2 the first clamping part 1021 has a first matching part 1023 located on a side of the first clamping part 1021 adjacent to the second clamping part 1022, and the second clamping part 1022 has a second matching part 1024 located on a side of the second clamping part 1022 adjacent to the first clamping part 1021. The two matching parts are used to match the groove on the track 200 of the flat car 100, so as to clamp the track 200.

[0046] The design of the first matching part 1023 and the second matching part 1024 enables the clamping assembly 102 to closely match the groove on the track 200, increases the clamping force, and prevents displacement (displacement in the up-down direction) of the device during operation of the flat car 100. The presence of the matching parts improves the overall structural stability of the clamping assembly 102, so that the clamping assembly 102 can still maintain its clamping force when subjected to vibration or impact.

[0047] That is, the clamping assembly 102 is connected to the track 200 of the flat car 100, and the first matching part 1023 and the second matching part 1024 are matched in the groove of the track 200 of the flat car 100, so as to achieve firm clamping of the track 200. The matching design of the matching parts and the groove of the track 200 can increase the clamping force of the clamping assembly 102 on the track 200, so that the clamping can be stable even if there is a large vibration during loading and unloading of materials. The design of the matching parts can reduce the direct contact area between the track 200 and the clamping assembly 102, thereby reducing the wear of the track 200.

[0048] Preferably, the elastic members 201 are a plurality of elastic members 201 arranged at intervals along the length direction of the flat car 100.

[0049] It can be understood that by using a plurality of elastic members 201, a more uniform buffering effect can be provided in the entire length direction of the flat car 100, which helps to maintain the balance of the car body during loading and unloading of materials. The plurality of elastic members 201 can disperse the pressure caused by the weight of the materials, reduce the burden of a single elastic member 201, and prolong the service life of the single elastic member 201.

[0050] In some embodiments, the plurality of elastic members 201 are divided into a plurality of elastic member groups, each elastic member group comprising a plurality of elastic members 201, and the plurality of elastic member groups are arranged in a spaced manner along the width direction (e.g., the left-right direction in Figure 1 FIG. 1) of the flat car 100.

[0051] Specifically, as shown in Figure 1 and Figure 2 , an elastic member group is a structural unit that combines a plurality of elastic members 201 together, and the plurality of elastic groups work together to provide balance and cushioning. Each elastic member group can act as a support unit to provide stronger support force to cope with larger loads generated by the flat car 100 during loading and unloading. By grouping, the position and performance of each elastic member group can be more easily adjusted and optimized to adapt to different types of flat cars 100 and track 200 conditions.

[0052] That is, the plurality of elastic member groups are arranged in a spaced manner along the left-right direction, which can provide uniform support and balance in the transverse direction of the car body. The spaced arrangement of elastic member groups helps to evenly distribute the load of the flat car 100 in the width direction, reducing the deformation of the car body and the shift of the center of gravity caused by uneven load. By arranging the elastic member groups evenly in the width direction, the stability of the flat car 100 during loading and unloading can be significantly improved, reducing the risk of overturning. The plurality of elastic member groups can work simultaneously at different positions (i.e., the force acting on different elastic member groups is not the same when the flat car 100 is deflected), thereby coordinating with each other to maintain the balance of the car body, especially when the car body is subjected to asymmetric load.

[0053] In some embodiments, the elastic force of the plurality of elastic member groups gradually increases in the direction from the inner side to the outer side of the track 200 of the flat car 100 (e.g., the direction indicated by the arrow in Figure 2 FIG. 1).

[0054] Specifically, as shown in Figure 1 and Figure 2 , the elastic force of the plurality of elastic member groups gradually increases in the direction from the inner side to the outer side of the track 200 of the flat car 100, i.e., the elastic member group near the inner side of the track 200 has a smaller elastic force, while the elastic member group near the outer side of the track 200 has a larger elastic force.

[0055] It can be understood that during the loading and unloading of materials, the center of gravity may be shifted towards the outer side of the track 200, so the elastic member group on the outer side needs to provide a larger elastic force to offset this shift and maintain the balance of the car body. By providing a larger elastic force on the outer side elastic member group, the risk of overturning caused by the shift of the center of gravity can be more effectively prevented, especially when loading and unloading heavy materials.

[0056] That is, the design of using elastic members 201 of different specifications can adjust the elastic force according to the specific situation of the center of gravity deviation, thereby improving the balance of the flatbed truck 100 and ensuring that it will not overturn during loading and unloading. And by optimizing the elastic force of each group of elastic members 201, the performance of the entire anti-rollover device can be improved to adapt to more complex material loading and unloading scenarios. Since the elastic force of each group of elastic members 201 is designed according to its position and expected load, unnecessary elastic force loss can be reduced, thereby prolonging the service life of the elastic members 201.

[0057] In addition, during actual use, the elastic force of each group of elastic members 201 can also be adjusted as needed to adapt to different working conditions and material types.

[0058] In some embodiments, the connecting part 202 includes a fixed plate 2021, a movable plate 2022, and a connecting piece 2023. The fixed plate 2021 is connected to the upper end of the elastic member 201, and in the height direction of the flatbed truck 100, the fixed plate 2021, part of the flatbed truck 100, and the movable plate 2022 are arranged in sequence. The connecting piece 2023 is used to pass through the movable plate 2022 and connect the fixed plate 2021.

[0059] Specifically, as shown in Figure 1 and Figure 2 , the fixed plate 2021 is connected to the upper end of the elastic member 201 and serves as a stable part of the connecting part 202, providing basic support and connection. The movable plate 2022 is located above the fixed plate 2021 and is in contact with part of the flatbed truck 100, used to adjust the connection position in the height direction. The connecting piece 2023 is used to pass through the movable plate 2022 and connect the fixed plate 2021. The connecting piece 2023 is used to fix the movable plate 2022 and the fixed plate 2021 together to form an adjustable connection structure. Optionally, the connecting piece 2023 can be a bolt.

[0060] It can be understood that the design of the movable plate 2022 allows adjustment in the height direction to adapt to different positions on the flatbed truck 100 and different thicknesses of the connecting part 202, improving the flexibility of the connecting part 202. The connecting piece 2023 allows adjustment between the fixed plate 2021 and the movable plate 2022, so that the connecting part 202 can adjust its position according to the actual situation to adapt to different loads and center of gravity deviations. The design of the connecting piece 2023 ensures the stability and durability of the connecting part 202, so that even if a large force is generated during material loading and unloading, the connection with the flatbed truck 100 can remain firm.

[0061] In some embodiments, a plurality of first matching holes are formed on the fixed plate 2021 and are arranged at intervals along the width direction of the flat car 100, a plurality of second matching holes are formed on the movable plate 2022 and are arranged at intervals along the width direction of the flat car 100, and the connecting piece 2023 is adapted to at least one first matching hole and at least one second matching hole.

[0062] It can be understood that the first matching holes on the fixed plate 2021 and the second matching holes on the movable plate 2022 are used to connect the fixed plate 2021 and the movable plate 2022 respectively, and these matching holes are arranged at intervals along the left-right direction. By forming a plurality of matching holes on the fixed plate 2021 and the movable plate 2022, a plurality of connection position options can be provided, so that the connecting piece 2023 can be inserted into different hole positions as needed to achieve flexible connection. The interval arrangement of the matching holes can adapt to different connection requirements in the width direction of the flat car 100, ensuring that the device can be installed on flat cars 100 of different widths.

[0063] That is, the design of the connecting piece 2023 allows selection between multiple matching holes, and the connection position and number can be adjusted according to actual needs, improving the adjustability and adaptability of the connecting part 202. The adaptation of the connecting piece 2023 to the matching hole ensures the stability of the connecting part 202, which can maintain firm connection even when a large force is generated during material loading and unloading.

[0064] In some embodiments, the anti-rollover device for mine flat cars 100 of the embodiments of the present application further comprises a moving part 30 connected to the base assembly 10 and located on the side of the base assembly 10 away from the flat car 100, and the moving part 30 has a handle 301.

[0065] It can be understood that, as shown in Figure 1 and Figure 2 The moving part 30 is the part connected to the base assembly 10, which provides a convenient way to push or pull the anti-rollover device. The moving part 30 is usually designed with a handle 301 so that the operator can comfortably hold and exert force to push or pull the flat car 100.

[0066] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0067] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "fixedly connected", "connected", "fixed", and the like should be construed broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0069] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0070] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A roll-over protection device for a mine flatbed truck, characterized in that, The utility model relates to a balance assembly for a flat car, comprising: a base assembly for connecting with the rail of the flat car; a plurality of balance assemblies, each of which comprises a resilient member and a connecting part connected with the flat car, the resilient member being connected between the base assembly and the connecting part, the plurality of balance assemblies being divided into a first balance group and a second balance group, each of which comprises a plurality of balance assemblies, the first balance group and the second balance group being arranged along the width direction of the flat car, and the plurality of balance assemblies in one of the balance groups being arranged along the extension direction of the rail of the flat car, the balance assembly having a balanced state, in which one of the first balance group and the second balance group applies a support force to the flat car, and the other of the first balance group and the second balance group applies a pulling force to the flat car, so that the flat car is in a force balanced state.

2. The mine car roll-over prevention device of claim 1 wherein, The base assembly comprises a base body and a clamping assembly connected with the base and located below the base, the clamping assembly being used for clamping the rail of the flat car.

3. The mine car roll-over prevention device of claim 2 wherein, The clamping assembly comprises a first clamping part and a second clamping part, at least one of which is movable along the width direction of the flat car.

4. The mine car roll-over prevention device of claim 3, wherein, The first clamping part has a first fitting part located on one side of the first clamping part adjacent to the second clamping part, the second clamping part has a second fitting part located on one side of the second clamping part adjacent to the second clamping part, the clamping assembly is connected with the rail of the flat car, and the first fitting part and the second fitting part are fitted in the groove of the rail of the flat car.

5. The mine truck roll-over protection device according to any one of claims 1-4, characterized in that, The plurality of resilient members are arranged along the length direction of the flat car.

6. The mine car roll-over prevention device of claim 5 wherein, The plurality of resilient members are divided into a plurality of resilient member groups, one of which comprises a plurality of resilient members, and the plurality of resilient member groups are arranged along the width direction of the flat car.

7. The mine car roll-over prevention device of claim 6 wherein, In the direction from the inner side to the outer side of the rail of the flat car, the elastic force of the plurality of resilient member groups gradually increases.

8. The mine car roll-over prevention device of claim 7 wherein, The connecting part comprises a fixed plate, a movable plate and a connecting piece, the fixed plate being connected with the upper end of the resilient member, the fixed plate, part of the flat car and the movable plate being arranged in sequence in the height direction of the flat car, and the connecting piece being used for connecting the movable plate and the fixed plate through the fixed plate.

9. The mine car roll-over prevention device of claim 8 wherein, A plurality of first fitting holes are formed on the fixed plate and arranged along the width direction of the flat car, a plurality of second fitting holes are formed on the movable plate and arranged along the width direction of the flat car, and the connecting piece is adapted to at least one of the first fitting holes and at least one of the second fitting holes.

10. The mine car roll-over prevention device of claim 9, wherein, The utility model further comprises a moving part connected with the base assembly and located on the side of the base assembly away from the flat car, the moving part having a handle.

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