Wheel chock, floor structure and method for railway bogie

Abstract

This invention discloses a wheel stop, a floor structure and method for a railway piggyback transport vehicle, which solves the problems of fixed and complex structures in existing wheel stops, and has the advantages of being retractable and having a wide range of applications. The specific solution is as follows: A wheel stop includes a sliding groove plate and a wheel stop frame. The sliding groove plate is provided with a first opening to facilitate the fastening of the first fastener to the sliding groove plate through the first opening. The sliding groove plate is provided with multiple slots along its width direction, and the slots are spaced apart. The wheel stop frame is mounted on the sliding groove plate and can move along the length direction of the sliding groove plate. A wheel stop stop and a wheel stop are provided in the wheel stop frame. The wheel stop and the wheel stop stop are rotatably connected. The wheel stop stop and the wheel stop frame are rotatably connected. The end of the wheel stop stop away from the wheel stop can rub against the sliding groove plate, and the end of the wheel stop away from the wheel stop stop can be inserted into the slot of the sliding groove plate.

Description

Technical Field

[0001] This invention relates to the field of vehicle parking technology, and in particular to a wheel stop, a floor structure and method for a railway piggyback transport vehicle. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Piggyback transport is a combined road and rail transport method where trucks or containers are driven directly onto train cars for transport and then unloaded at the destination. Piggyback transport vehicles are equipped with wheel stops or movable wheel stops to limit the movement of the truck or container wheels. Wheel stops are also used in other sectors to limit wheel movement and ensure stability.

[0004] The inventors discovered that the wheel stops fixed to the hog transport vehicle are embedded in the floor surface and are in a fixed position, which has a complex structure and requires multiple workers to operate in coordination during use.

[0005] The fixed wheel stops cannot be removed, which makes maintenance difficult. They also protrude from the floor, restricting vehicle passage. Their fixed position affects the application range of the entire piggyback transport vehicle.

[0006] Movable wheel stops have the problems of poor structural stability and easy damage. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a wheel stop that is simple in structure, allows for manual adjustment of its working state, and is convenient to use.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0009] A wheel stop includes a sliding groove plate and a wheel stop frame. The sliding groove plate has a first opening to facilitate the fastening of a first fastener to the sliding groove plate through the first opening. The sliding groove plate has multiple slots along its width direction, with a distance between adjacent slots. The wheel stop frame is mounted on the sliding groove plate and can move along the length direction of the sliding groove plate. A wheel stop stop and a wheel stop are provided inside the wheel stop frame. The wheel stop and the wheel stop stop are rotatably connected. The wheel stop stop and the wheel stop frame are rotatably connected. The end of the wheel stop stop away from the wheel stop can rub against the sliding groove plate. The end of the wheel stop away from the wheel stop stop can be engaged in the slot of the sliding groove plate to stop the wheel through the herringbone structure formed by the wheel stop stop and the wheel stop.

[0010] As described above, a wheel stop has a sliding groove plate supporting the wheel stop frame. The wheel stop frame can drive the wheel stop component and the wheel stop stop to move along the sliding groove plate. The wheel stop stop is rotatably connected to both the wheel stop component and the wheel stop frame. Under normal conditions, the wheel stop stop and the wheel stop component can be placed in the hollow space inside the wheel stop frame without rotating, thus avoiding any impact on driving and allowing the wheel stop to retract. When it is necessary to block the wheel, the wheel stop stop rotates relative to the wheel stop frame, and the wheel stop component rotates relative to the wheel stop stop, forming a V-shape between the wheel stop component and the wheel stop stop to block the wheel.

[0011] As described above, one side of the sliding groove plate is semi-circular, and the other side of the sliding groove plate is provided with multiple continuous grooves, the width of which is greater than the distance between two adjacent grooves.

[0012] The length of the sliding groove plate is greater than the length of the wheel stop frame to ensure that the wheel stop effectively blocks the wheel within the wheel stop frame area.

[0013] As described above, in a wheel stop, the first opening is provided on the side of the middle section of the sliding groove plate near the semi-circular side of the sliding groove plate;

[0014] Multiple first openings are provided to ensure that the slide plate is stably fixed.

[0015] As described above, in a wheel stop, the end of the wheel stop member away from the wheel stop member can be engaged in the groove of the sliding plate. Both the ends of the wheel stop member and the wheel stop member can be engaged in the groove of the sliding plate, which helps to form a stable and reliable herringbone structure and ensures that both of them stably block the wheel.

[0016] The wheel stop has a first recess on at least one side of the section near the wheel stop to facilitate gripping by the operator.

[0017] As described above, in a wheel stop, the end of the wheel stop away from the wheel stop is rotatably connected to one end of a rotating arm, and the other end of the rotating arm is rotatably connected to the wheel stop frame. The rotating arm can rotate within a range of 180° relative to the wheel stop frame. By setting the rotating arm, the range of motion of the end of the wheel stop away from the wheel stop is effectively widened, ensuring that the end of the wheel stop can be engaged in the slot of the sliding groove plate, and that it does not interfere with the fixed section of the sliding groove plate during movement.

[0018] The rotating arm is located on both sides of one end of the wheel stop.

[0019] As described above, in a wheel stop, one end of the wheel stop member away from the wheel stop stop member is rotatably connected to the wheel stop frame;

[0020] The wheel stop is provided with a second recess at one end near the wheel stop stop, and the wheel stop is also provided with a third recess. The second recess facilitates the rotation of the wheel stop relative to the wheel stop stop and avoids interference between the two during rotation. The third recess facilitates the worker's gripping of the stop stop.

[0021] As described above, a wheel stop has a groove on one side of the wheel stop frame that cooperates with the sliding groove plate, and the wheel stop frame can cooperate with the sliding groove plate through the groove;

[0022] The wheel chock frame is mounted on the sliding groove plate. The height of the space formed between the wheel chock frame and the sliding groove plate is greater than, equal to, or less than the thickness of the wheel chock stop. The height of this space is not much different from the thickness of the wheel chock stop. This way, when the wheel chock and wheel chock stop are laid flat, they do not protrude too much from the wheel chock frame, ensuring normal passage in the area where the wheel chock is located. The wheel chock frame can also effectively protect the wheel chock and wheel chock stop.

[0023] As described above, in a wheel stop, the total length of the wheel stop stop and the wheel stop member after connection is less than or equal to the length of the hollow part inside the wheel stop frame;

[0024] The wheel chock frames are provided in multiple ways, and the lengths of the different wheel chock frames are different. The total length of the wheel chock stop and the wheel chock component connected in the different wheel chock frames is also different. The appropriate length of wheel chock frame can be selected according to the different models and sizes of vehicles.

[0025] Secondly, the present invention provides a floor structure for a railway piggyback transport vehicle, including a floor, the floor having a plurality of slots, a wheel stop being provided in the slots, the depth of the slots being less than the thickness of the sliding plate, the slots and the sliding plate being clearance-fitted, the bottom plate having slots, the slots being able to share the shearing force on the first fastener when the wheel impacts the wheel stop, thus distributing the impact force to the entire floor.

[0026] Thirdly, the present invention also provides a method for operating a wheel stop, comprising the following:

[0027] The slide plate is fixed to the position where the wheel stop is needed using the first fastener;

[0028] The wheel stop frame is mounted on the slide rail plate;

[0029] A wheel stop and a wheel stop are provided inside the wheel stop frame, and the wheel stop is movably connected to the wheel stop frame and the wheel stop respectively.

[0030] The wheel stop is rotated relative to the wheel stop frame and the wheel stop is rotated relative to the wheel stop. The end of the wheel stop away from the wheel stop is inserted into a slot of the slide plate. The end of the wheel stop away from the wheel stop makes frictional contact with the slide plate, thereby blocking the wheel through the inclined wheel stop.

[0031] After use, rotate the wheel chock and wheel stop to flatten them, and the vehicle can pass normally.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1) The wheel stop in this invention includes a fixed sliding groove plate and a wheel stop frame that can move relative to the sliding groove plate. The wheel stop component and the wheel stop stop component are installed on the wheel stop frame, which is easy to disassemble. The wheel stop frame can be disassembled relative to the sliding groove plate by moving the wheel stop frame. The sliding groove plate can also be disassembled, which greatly facilitates maintenance. It is flexible in use and can be disassembled and adjusted by one operator at any time. The whole operation is convenient and does not require labor or multiple people to operate.

[0034] 2) In this invention, the wheel stop is designed with a sliding groove plate supporting the wheel stop frame. The wheel stop frame can drive the wheel stop component and the wheel stop stop to move along the sliding groove plate. The wheel stop stop is rotatably connected to the wheel stop component and the wheel stop frame. Under normal conditions, the wheel stop stop and the wheel stop component can be placed in the hollow space inside the wheel stop frame without rotating, and are in the retracted position. When it is necessary to block the wheel, the wheel stop stop and the wheel stop component rotate to form a V-shaped wheel stop component and wheel stop, thereby blocking the wheel. The entire wheel stop structure can be fixed, with high support stability and is not easily damaged. Moreover, the wheel stop can be retracted, and the vehicle can pass through when it is retracted, which is more convenient. Multiple wheel stops can be set on the transport vehicle, and the unused wheel stops can be retracted, which broadens the application range of the transport vehicle.

[0035] 3) In this invention, one end of the wheel stop is rotatably connected to the wheel stop frame via a rotating arm. The rotating arm and the wheel stop frame are rotatably connected, so the wheel stop can drive the rotating arm to rotate together, effectively widening the range of motion of the end of the wheel stop away from the wheel stop. This not only ensures that the end of the wheel stop can be engaged in the slot of the sliding groove plate and does not interfere with the fixed section of the sliding groove plate during movement, but also ensures that the wheel stop and the wheel stop are in a flat state within a small area of ​​the hollow part of the wheel stop frame.

[0036] 4) In this invention, the end of the wheel stop component away from the wheel stop stop component is not connected to the wheel stop frame, which can ensure the movement of the wheel stop component relative to the wheel stop stop component and facilitate the insertion of the wheel stop component into the slot of the sliding groove plate during use; or the wheel stop component is rotatably connected to the wheel stop frame, which further ensures the support stability of the wheel stop component when it is inserted into the slot; since the wheel stop frame can move along the sliding groove plate, it is easy for the wheel stop stop component and the end of the wheel stop component to be inserted into the appropriate slot during the movement.

[0037] 5) The floor structure proposed in this invention has several slots in the floor. The slots are fitted with the sliding plate with a clearance. The slots can share the shearing force on the first fastener when the wheel hits the wheel stop, and distribute the impact force to the entire floor, thereby improving the strength of the wheel stop and making it less susceptible to impact and damage.

[0038] 6) In this invention, the floor can be provided with multiple slots, and the vehicle can be parked in the corresponding slot according to the wheelbase and track width. After parking, the corresponding wheel stops can be installed in the corresponding slot, which greatly improves the versatility of the railway piggyback transport vehicle. The wheel stop frame of appropriate size can also be selected according to the size of the vehicle, further improving the application range of the railway piggyback transport vehicle. Attached Figure Description

[0039] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0040] Figure 1 This is a schematic diagram of the use of a wheel stop according to one or more embodiments of the present invention.

[0041] Figure 2 This is a schematic diagram of a wheel stop retracted state according to one or more embodiments of the present invention.

[0042] Figure 3 This is a schematic diagram of a sliding groove plate in a wheel stop according to one or more embodiments of the present invention.

[0043] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0044] Among them: 1.1, floor; 1.2, slot; 2, sliding groove plate; 2.1, slot; 2.2, first opening; 3.1, wheel stop frame; 3.2, swing arm; 3.3, wheel stop stop; 3.3.1, first recess; 3.4, wheel stop; 3.4.1, second recess; 3.4.2, third recess. Detailed Implementation

[0045] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] As described in the background section, existing wheel stops have the problems of complex structure and non-removable design. In order to solve the above technical problems, this invention proposes a wheel stop.

[0048] Example 1

[0049] In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2 As shown, a wheel stop includes a sliding groove plate 2 and a wheel stop frame 3.1. The sliding groove plate 2 has a first opening 2.2 to facilitate the fastening of a first fastener to the sliding groove plate 2 through the first opening 2.2. The sliding groove plate 2 has multiple slots 2.1 along its width direction, with a distance between adjacent slots 2.1. The wheel stop frame 3.1 is mounted on the sliding groove plate 2 and can move along the length direction of the sliding groove plate 2. The wheel stop frame 3.1 is provided with a wheel stop stop 3.3 and a wheel stop 3.4. 3.4 is rotatably connected to wheel stop 3.3, and wheel stop 3.3 is rotatably connected to wheel stop frame 3.1. The end of wheel stop 3.3 away from wheel stop 3.4 can rub against the slide groove plate 2. The end of wheel stop 3.4 away from wheel stop 3.3 can be inserted into the groove 2.1 of slide groove plate to stop the wheel through the herringbone structure formed by wheel stop and wheel stop. The wheel stop is in contact with the wheel. Wheel stop 3.3 is used to stop wheel stop 3.4.

[0050] refer to Figure 3 As shown, one side of the sliding plate 2 is semi-circular, and the other end of the sliding plate 2 is rectangular. Multiple continuous slots 2.1 are provided on the side of the sliding plate 2 near the rectangular end. Thus, one section of the sliding plate with slots is a clamping section, and the other section is a fixing section. The number of slots is at least 8. The length of all the sections with slots is greater than half the length of the sliding plate. The length of the slot 2.1 is less than the width of the sliding plate. The width of the slot 2.1 is greater than the distance between two adjacent slots. The distance between two adjacent slots refers to the distance between the two adjacent sides of the two adjacent slots, not the distance between the central axes.

[0051] The middle section of the slide plate is provided with a first opening 2.2 on the side of the semi-circle of the slide plate. The first opening is a countersunk threaded hole. There are multiple first openings 2.2, arranged in multiple rows and columns. Specifically, there can be 4 first openings, or other numbers. Multiple first openings ensure that the slide plate is stably fixed.

[0052] Understandably, the length of the sliding groove plate 2 is greater than the length of the wheel stop frame 3.1, so as to ensure that the wheel stop effectively blocks the wheel within the wheel stop frame.

[0053] Regarding the wheel stop frame, the width of the wheel stop frame 3.1 is greater than the width of the slide groove plate 2. The lower side of the wheel stop frame 3.1 is provided with a groove that cooperates with the slide groove plate 2. The groove is a through square groove. The wheel stop frame can cooperate with the slide groove plate through the groove, so that the wheel stop frame is mounted on the upper surface of the slide groove plate.

[0054] After the wheel stop frame 3.1 is mounted on the slide plate 2, the height of the space formed between the wheel stop frame 3.1 and the slide plate 2 is within ±10mm of the thickness of the wheel stop. This prevents the wheel stop and the wheel stop from protruding too much from the wheel stop frame after they are laid flat. Preferably, the height of the space formed between the wheel stop frame 3.1 and the slide plate 2 is the same as the thickness of the wheel stop, ensuring normal passage in the area where the wheel stop is located, and also effectively protecting the wheel stop and the wheel stop through the wheel stop frame.

[0055] It should be noted that when the wheel stop 3.3 and wheel stop 3.4 are in a flat position (the wheel stop and wheel stop are parallel to the slide plate) in the hollow part inside the wheel stop frame 3.1, the total length of the wheel stop and wheel stop after connection is less than or equal to the length of the hollow part inside the wheel stop frame, which allows the hollow part of the wheel stop frame to effectively accommodate the wheel stop and wheel stop.

[0056] Understandably, there are multiple wheel chock frames 3.1, and the lengths of the different wheel chock frames are different. The total length of the wheel chock stop and the wheel chock component connected in the different wheel chock frames is also different. The appropriate length of wheel chock frame can be selected according to the different models and sizes of vehicles.

[0057] In this embodiment, the end of the wheel stop 3.3 away from the wheel stop 3.4 can be inserted into the slot 2.1 of the sliding plate. Both the ends of the wheel stop and the wheel stop can be inserted into the slot of the sliding plate, which is conducive to forming a stable and reliable herringbone structure and ensuring that both can stably block the wheel.

[0058] It is easy to understand that the wheel stop 3.3 has a first recess on each side of the section near the wheel stop. The first recess 3.3.1 is U-shaped and the opening sides of the two first recesses 3.3.1 are arranged in opposite directions to facilitate the operator to grab the wheel stop.

[0059] In this embodiment, the end of the wheel stop away from the wheel stop is rotatably connected to one end of the rotating arm. The rotating arm is elongated and located on both sides of the wheel stop. The rotating arm 3.2 can rotate within a 180° range relative to the wheel stop frame. The wheel stop frame 3.1 is provided with a second opening, through which a first bolt or a first stud passes. The rotating arm is provided with a corresponding opening, allowing the rotating arm to have rotational freedom relative to the wheel stop frame. The other end of the rotating arm is rotatably connected to the wheel stop frame, through which a second bolt or a second stud passes. The wheel stop has a rotational freedom relative to the rotating arm by the corresponding opening on one side, the through hole of the wheel stop, and the corresponding opening on the other side. The setting of the rotating arm 3.2 effectively widens the range of motion of the wheel stop away from the wheel stop, ensuring that the end of the wheel stop 3.3 can be inserted into the slot of the sliding plate and does not interfere with the fixed section of the sliding plate during movement. Moreover, it can also ensure that the wheel stop and the wheel stop are in a flat state within a small range in the hollow part of the wheel stop frame.

[0060] In addition, the end of the wheel stop 3.4 away from the wheel stop stop 3.3 is rotatably connected to the wheel stop frame 3.1. The third bolt or the third stud is set through the through hole between the wheel stop frame and the wheel stop, so that the wheel stop can rotate relative to the wheel stop frame. The fourth bolt or the fourth stud is set through the wheel stop and the wheel stop stop, so that the wheel stop and the wheel stop stop have rotational freedom relative to the other component.

[0061] Of course, the bolts or studs mentioned above can be replaced with other structural components, as long as the rotational freedom of the corresponding wheel stop and wheel stop is guaranteed.

[0062] Understandably, the wheel stop is provided with a second recess 3.4.1 at one end near the wheel stop stop, and the wheel stop is also provided with a third recess 3.4.2. The second recess 3.4.1 is semi-circular, and the second recess facilitates the rotation of the wheel stop relative to the wheel stop stop, avoiding interference between the two during rotation. The third recess 3.4.2 is a round hole, and the third recess facilitates the worker's gripping of the stop.

[0063] Specifically, both the wheel stop and the wheel chock are made of iron and are plate parts.

[0064] The wheel stop provided in this embodiment has a sliding groove plate supporting the wheel stop frame. The wheel stop frame can drive the wheel stop component and the wheel stop stop component to move along the sliding groove plate. The wheel stop stop component is rotatably connected to the wheel stop component and the wheel stop frame. Under normal conditions, the wheel stop stop component and the wheel stop component can be placed in the hollow space inside the wheel stop frame without rotating, avoiding the impact on driving and realizing the retraction of the wheel stop. When it is necessary to block the wheel, the wheel stop stop component rotates relative to the wheel stop frame, and the wheel stop component rotates relative to the wheel stop stop component, thus blocking the wheel by forming a V-shape of wheel stop component and wheel stop stop component.

[0065] A method for operating a wheel stop includes the following:

[0066] The slide plate is fixed at the position where the wheel stop is needed by passing the first fastener through the first opening and the third opening in the floor.

[0067] The wheel stop frame 3.1 is mounted on the slide rail plate 2;

[0068] The inner side of the wheel stop frame 3.1 is provided with a wheel stop stop and a wheel stop, and the wheel stop stop is movably connected to the wheel stop frame and the wheel stop respectively;

[0069] Rotate the wheel stop 3.3 relative to the wheel stop frame 3.1 and rotate the wheel stop 3.4 relative to the wheel stop 3.3. Insert the end of the wheel stop away from the wheel stop into a slot 2.1 of the sliding plate, and insert the end of the wheel stop away from the wheel stop into a slot. If the wheel stop and wheel stop are not easy to insert into the corresponding slots, the wheel stop frame 3.1 can be moved relative to the sliding plate 2, thereby inserting the wheel stop and wheel stop into the corresponding slots 2.1. The wheel stop and wheel stop form a herringbone structure, thereby stopping the wheel.

[0070] After use, rotate the wheel chock and wheel stop to flatten them, and the vehicle can pass normally.

[0071] Example 2

[0072] The difference between this embodiment and Embodiment 1 is that:

[0073] The end of the wheel stop component away from the wheel stop stop component is not connected to the wheel stop frame. When it is necessary to block the wheel, the end of the wheel stop component away from the wheel stop stop component can be inserted into the slot of the sliding plate.

[0074] Example 3:

[0075] The difference between this embodiment and Embodiment 1 is that:

[0076] After rotating relative to the swing arm, the wheel stop does not necessarily engage with the slot in the sliding plate. Instead, a rubber pad is positioned at the end of the wheel stop away from the wheel stop itself. This rubber pad contacts the sliding plate through friction, thus stopping the wheel stop. Because the friction between the wheel stop and the sliding plate is relatively low, this embodiment is only suitable for ordinary wheel stops and not for stops during transportation.

[0077] Example 4

[0078] This embodiment provides a floor structure for a railway piggyback transport vehicle, including a floor 1.1, with a plurality of slots 1.2. A wheel stop as described in Embodiment 1 is installed in the slots 1.2. The depth of the slots 1.2 is less than the thickness of the sliding plate 2. The slots and the sliding plate are clearance-fitted. The bottom plate is provided with slots, which can share the shearing force on the first fastener when the wheel impacts the wheel stop, thus distributing the impact force to the entire floor.

[0079] Understandably, slot 1.2 is a flat slot, and the shape of the slot is the same as that of the sliding plate. A third opening is provided in the slot, and the first fastener can be a countersunk bolt. The bolt passes through the first opening and the third opening.

[0080] To broaden the application range of railway piggyback transport vehicles, the floor of the railway piggyback transport vehicle is equipped with multiple slots. The position of the slots is adapted to the wheelbase and track width of the corresponding vehicle. The vehicle can be parked in the corresponding slot according to the wheelbase and track width of the vehicle. After parking, the corresponding sliding plate is installed in the corresponding slot. Furthermore, the wheel stop frame of appropriate size is selected according to the size of the vehicle.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wheel chock, characterized in that, The device includes a sliding groove plate and a wheel stop frame. The sliding groove plate has a first opening to facilitate the fastening of the first fastener to the sliding groove plate through the first opening. The sliding groove plate has multiple slots along its width direction, with a distance between adjacent slots. The wheel stop frame is mounted on the sliding groove plate and can move along the length direction of the sliding groove plate. The wheel stop frame contains a wheel stop stop and a wheel stop, which are rotatably connected. The wheel stop stop is also rotatably connected to the wheel stop frame. The end of the wheel stop stop away from the wheel stop can rub against the sliding groove plate, and the end of the wheel stop away from the wheel stop can be inserted into the slot of the sliding groove plate to stop the wheel through the herringbone structure formed by the wheel stop stop and the wheel stop. The end of the wheel stop away from the wheel stop is rotatably connected to one end of the rotating arm, and the other end of the rotating arm is rotatably connected to the wheel stop frame. The rotating arm can rotate within a range of 180° relative to the wheel stop frame. The rotating arm is located on both sides of one end of the wheel stop; A groove is provided on one side of the wheel stop frame to cooperate with the slide plate; The wheel stop frame is mounted on the sliding groove plate, and the height of the space formed between the wheel stop frame and the sliding groove plate is greater than, equal to or less than the thickness of the wheel stop.

2. A wheel chock according to claim 1, wherein One side of the sliding plate is semi-circular, and the other side of the sliding plate is provided with multiple continuous slots, the width of which is greater than the distance between two adjacent slots. The length of the sliding groove plate is greater than the length of the wheel stop frame.

3. A wheel chock as defined in claim 2, wherein The first opening is provided on the side of the middle section of the slide plate near the semi-circular side of the slide plate; There are multiple first openings.

4. A wheel chock as defined in claim 1, wherein The end of the wheel stop away from the wheel stop can be engaged in the slot of the sliding plate; The wheel stop has a first recess on at least one side of the section near the wheel stop.

5. A wheel chock as defined in claim 4, wherein The end of the wheel stop component away from the wheel stop stop component is rotatably connected to the wheel stop frame; The wheel stop is provided with a second recess at one end near the wheel stop, and the wheel stop is also provided with a third recess.

6. A wheel chock as defined in claim 1, wherein The total length of the wheel stop and the wheel stop after connection is less than or equal to the length of the hollow part inside the wheel stop frame; The wheel stop frame is provided in multiple ways, and the lengths of different wheel stop frames are different. The total length of the wheel stop stop and the wheel stop component connected in different wheel stop frames is also different.

7. A floor structure for a railway flat car, characterized by, The system includes a floor with several slots, and a wheel stop as described in any one of claims 1-6 is installed in each slot. The depth of the slot is less than the thickness of the sliding plate, and the slot and the sliding plate are fitted with a clearance fit.

8. A method of operating a wheel chock according to any one of claims 1-6, characterized in that, Includes the following: The slide plate is fixed to the position where the wheel stop is needed using the first fastener; The wheel stop frame is mounted on the slide rail plate; A wheel stop and a wheel stop are provided inside the wheel stop frame, and the wheel stop is movably connected to the wheel stop frame and the wheel stop respectively. The wheel stop is rotated relative to the wheel stop frame, and the wheel stop is rotated relative to the wheel stop. The end of the wheel stop away from the wheel stop is inserted into a slot of the slide plate. The end of the wheel stop away from the wheel stop makes frictional contact with the slide plate, thereby blocking the wheel through the tilted wheel stop. After use, turn the wheel stop and wheel stop stop, put the wheel stop and wheel stop stop flat, and the vehicle can pass normally.

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