Adjustable platform width

Abstract

This invention discloses a platform with adjustable vehicle width, comprising: a railway flatcar with a support frame on top that can be moved above either side of the railway track; a transport car mounted on the support frame, including a frame with a translation frame and translation components mounted on the frame; and a platform assembly including a fixed frame, a platform mechanism, and an adjustable spacing mechanism. The platform mechanism has a folded form and an unfolded form, and includes multiple support frames and ramps connected to the support frames at both ends. In the folded form, the platform mechanism is positioned above the fixed frame; in the unfolded form, the support frames are used to support the support frame. This invention facilitates the transport of the platform assembly to any location for loading and unloading via the transport car. The adjustable spacing of the platform mechanism accommodates wheeled vehicles of different widths. The support frame, which can extend from either side, facilitates the transfer of transport cars and wheeled vehicles between the ground and the railway flatcar, improving the flexibility of loading and unloading.

Description

Technical Field

[0001] This invention relates to the field of emergency rescue transportation technology, and in particular to a vehicle-mounted platform with adjustable width. Background Technology

[0002] To achieve rapid transportation of wheeled and tracked vehicles, it is usually necessary to rely on platforms as intermediate carriers to realize the loading, unloading and transfer of wheeled and tracked vehicles between ground and rail vehicles.

[0003] In order to improve the flexibility and efficiency of vehicle loading and unloading during emergency rescue or disaster relief vehicle transportation, existing technologies, such as the Chinese invention patent application with publication number CN11 5557272A, disclose a mobile railway loading and unloading platform car. This device uses a movable folding platform to load and unload vehicles that need to be transported, without relying on traditional fixed platforms. It can complete the loading and unloading of vehicles at any location, thereby facilitating rapid rescue.

[0004] However, in the aforementioned device, the folding platform is located on the loading and unloading platform, which in turn is located on the flatcar body. The folding platform is driven to move on the loading and unloading platform via a ball screw assembly. Therefore, the folding platform has a limited range of motion and can only be deployed on one side of the railway and close to the railway. Wheeled vehicles need to be moved to the same side of the railway as the folding platform in order to be transferred to the railway flatcar via the folding platform. When the wheeled vehicle and the folding platform are located on opposite sides of the railway, it is difficult to transfer the wheeled vehicle to the railway flatcar, making it inconvenient to use. Moreover, in the aforementioned device, the width of the folding platform is fixed, so the folding platform is only suitable for wheeled vehicles with a width smaller than that of the folding platform.

[0005] Therefore, it is necessary to improve the existing transfer and transportation devices for wheeled and tracked vehicles. Summary of the Invention

[0006] This invention provides a platform with adjustable vehicle width, which allows for convenient and rapid transfer from either side of the railway to a flatcar for emergency rescue, and is suitable for transferring vehicles of different widths. The specific technical solution is as follows:

[0007] A vehicle-mounted, width-adjustable platform, comprising:

[0008] A railway flatcar, wherein the top of the railway flatcar is provided with a support frame that can be moved above either side of the railway track;

[0009] A transport vehicle, which is mounted on the support frame, includes a frame, and a translation frame and a translation component that drives the translation frame to move along its own width direction to the upper sides of the frame.

[0010] The platform assembly includes a fixed frame detachably connected to the translation frame, platform mechanisms located on both sides of the fixed frame, and a spacing adjustment mechanism for adjusting the distance between the platform mechanisms. The platform mechanisms have a folded form and an unfolded form, and include multiple support frames connected in sequence and ramps connected to the support frames at both ends. In the folded form, the platform mechanisms are located above the fixed frame. In the unfolded form, the support frames are connected in sequence along the length of the railway to support the load-bearing frame. The ramps abut against the ground to allow the transport vehicle and wheeled vehicles to move between the railway flatcar and the ground.

[0011] Furthermore, in order to enable the platform mechanism to switch between folded and unfolded forms, a first rotation mechanism is provided between adjacent support frames to drive them to rotate relative to each other with the rotation axis parallel to the width direction of the transport vehicle, and a second rotation mechanism is provided between the end support frame and the ramp to drive them to rotate relative to each other with the rotation axis parallel to the width direction of the transport vehicle.

[0012] Furthermore, in order to ensure the length of the support surface formed by each support frame in the unfolded state of the platform mechanism, the support frame includes a central frame that slides on the fixed frame and extension frames disposed at both ends of the central frame, wherein the length of the central frame is greater than or equal to twice the length of the extension frames.

[0013] Furthermore, to facilitate the stacking of support frames, the support frame is an open support frame on one side, with the open side of the support frame facing away from the side that supports the carrier frame. The support frame is provided with a support mechanism, which includes a support column and an active component that drives the support column to move between a storage position and a support position. The support column in the storage position is located inside the support frame, and the support column in the support position is used to support the support frame.

[0014] Furthermore, to facilitate adjustment of the platform's support height, the support column is an adjustable-length support column.

[0015] Furthermore, to facilitate quick and detachable connection between the translation frame and the fixed frame, the translation frame and the fixed frame are plugged into each other.

[0016] Furthermore, in order to drive the translation frame to move along the width direction of the transfer vehicle, the translation component includes rollers distributed along the width direction of the frame and rotating on the frame about their own axis. The wheel surface of the rollers abuts against the translation frame, and the rollers are connected to a transmission unit that drives their own rotation.

[0017] Furthermore, to accommodate the length of the explosion ramp and facilitate wheeled vehicles moving onto the support frame via the ramp, the ramp includes support plates that slide sequentially along its length and are connected in a limiting manner.

[0018] Furthermore, in order to achieve distance adjustment between the two platform mechanisms, the distance adjustment mechanism includes a rotating unit and distance adjustment units connected to each platform mechanism in a one-to-one correspondence. The distance adjustment unit includes a distance adjustment screw and a distance adjustment sleeve that is threadedly connected to the distance adjustment screw and fixedly connected to one of the support frames. The rotating unit drives the distance adjustment screw to rotate around its own axis.

[0019] Furthermore, in order to facilitate control of the extension direction of the support frame, the railway flatcar is equipped with a rotating assembly, the output end of the rotating assembly is equipped with a rotating plate, the rotating plate is rotatably mounted on the railway flatcar, the rotating plate is equipped with a telescopic mechanism, and the output end of the telescopic mechanism is connected to the support frame.

[0020] This invention features an ingenious structural design, allowing for convenient transport of the platform components to any location for loading and unloading via a transport vehicle. The spacing of the platform mechanisms within the platform components is adjustable to accommodate wheeled vehicles of varying widths. Combined with a support frame that can extend from either side of the railway flatcar, the components are mounted on a support structure, facilitating the transfer of transport vehicles and wheeled vehicles between the ground and the railway flatcar. This enhances loading and unloading flexibility and effectively addresses the timeliness and flexibility requirements of transportation in emergency rescue, disaster relief, national defense, and the national economy.

[0021] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the transport vehicle in this invention, which is mounted on a support frame and moves with the railway flatcar.

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of a transport vehicle loading and unloading platform components on a support frame;

[0025] Figure 3 This is a schematic diagram of the platform mechanism in its unfolded state to support the load-bearing frame;

[0026] Figure 4 This is a schematic diagram of the railway flatcar in this invention;

[0027] Figure 5 yes Figure 4 An explosion diagram;

[0028] Figure 6 yes Figure 5 Enlarged view of part A;

[0029] Figure 7 This is a schematic diagram of the connection structure between the steering plate and the load-bearing frame;

[0030] Figure 8 This is a schematic diagram of the connection structure between the transport vehicle and the platform components;

[0031] Figure 9 This is a schematic diagram of another form of connection structure between the transport vehicle and the platform components;

[0032] Figure 10 This is a schematic diagram of the connection structure between the transport vehicle and the translation frame;

[0033] Figure 11 This is a schematic diagram of the connection structure between the chassis and the translation frame;

[0034] Figure 12 yes Figure 11 An explosion diagram;

[0035] Figure 13 yes Figure 11 An illustration of the explosion from another perspective;

[0036] Figure 14 This is a structural diagram of the platform components;

[0037] Figure 15 yes Figure 14 An explosion diagram;

[0038] Figure 16 yes Figure 15 Enlarged view of part B;

[0039] Figure 17 This is a schematic diagram of the platform mechanism in a folded state.

[0040] Figure 18 yes Figure 17 An explosion diagram;

[0041] Figure 19 yes Figure 18 Enlarged view of part C;

[0042] In the diagram: 100, railway flatcar; 110, support frame; 111, reinforcing plate; 112, guide rail; 120, rotating assembly; 121, rotating motor; 122, rotating bearing; 130, rotating plate; 140, telescopic mechanism; 141, fixed seat; 142, sliding seat; 150, traveling device; 160, base plate; 200, transport car; 210, frame; 211, first sliding groove; 220, translation frame; 221. 222. Positioning protrusion; 230. Slide groove; 231. Translation component; 240. Roller; 250. Sliding element; 260. Drive motor; 300. Chain; 300. Fixing frame; 301. Positioning port; 302. Second slide port; 400. Platform mechanism; 410. Support frame; 411. Central frame; 412. Extension frame; 413. First docking sleeve; 414. Second docking sleeve; 415. Dating rod; 416. Dating nut; 4 17. Fourth sliding opening; 420. Inclined ramp; 421. Support plate; 422. Third sliding opening; 423. Guide slider; 430. First rotating mechanism; 431. First cylinder; 432. First moving frame; 433. First drive rod; 434. First transmission rod; 435. First rotating rod; 440. Second rotating mechanism; 441. Second cylinder; 442. Second rotating rod; 450. Support column; 460. Movable assembly; 461. Drive motor; 462. Drive screw; 463. Drive sleeve; 464. Bushing; 465. Drive connecting rod; 500. Adjustment mechanism; 510. Adjustment unit; 511. Adjustment screw; 512. Adjustment sleeve; 513. Adjustment slider; 520. Rotation unit; 521. Rotary motor; 522. Drive wheel; 523. Synchronous belt; 524. Driven wheel; 525. Positioning bearing; 600. Railway track. Detailed Implementation

[0043] To better understand the purpose, function, and specific design of this invention, the following detailed description of the vehicle-mounted adjustable width platform of this invention is provided in conjunction with the accompanying drawings.

[0044] like Figures 1-19 As shown, the vehicle-mounted adjustable width platform of the present invention includes:

[0045] The railway flatcar 100 has a support frame 110 on its top that can be moved to any side above the railway track 600.

[0046] The transport vehicle 200 is mounted on the support frame 110 and includes a frame 210. The frame 210 is provided with a translation frame 220 and a translation component 230 that drives the translation frame 220 to move along its own width direction to the upper sides of the frame 210.

[0047] The platform assembly includes a fixed frame 300 detachably connected to the translation frame 220, platform mechanisms 400 disposed on both sides of the fixed frame 300, and a spacing adjustment mechanism 500 for adjusting the spacing between the platform mechanisms 400. The platform mechanism 400 has a folded form and an unfolded form, and includes multiple support frames 410 connected in sequence and a ramp 420 connected to the support frames 410 at both ends. In the folded form, the platform mechanism 400 is located above the fixed frame 300. In the unfolded form, the support frames 410 are connected in sequence along the length of the railway to support the bearing frame 110. The ramp 420 abuts against the ground to allow the transport car 200 and wheeled vehicles to move between the railway flatcar 100 and the ground.

[0048] Specifically, in this invention, the railway flatcar 100 is used to travel on the railway track 600. The top of the railway flatcar 100 is provided with a support frame 110, which is used to support the transport car 200 and wheeled vehicles. When in use, the support frame 110 can be moved to any side above the railway track 600 as needed.

[0049] To ensure transport capacity, the transport vehicle 200 is preferably a medium- or heavy-duty truck. The transport vehicle 200 includes a frame 210, on which a translation component 230 and a translation frame 220 are mounted. The translation frame 220 is detachably connected to the fixed frame 300 in the platform assembly. In use, the position of the translation frame 220 is adjusted via the translation component 230, thereby adjusting the horizontal position of the platform assembly. When the platform assembly moves to one side of the transport vehicle 200, such as... Figure 2 and Figure 9 As shown, the platform mechanism 400 is adjusted to its unfolded state. In the unfolded state, the various support frames 410 in the platform mechanism 400 are connected sequentially along the length of the transport vehicle 200, and the two ramps 420 are respectively connected to the support frames 410 at both ends. The bottom end of the ramps 420 is connected to the ground. The vehicle frame 210 is disassembled from the platform mechanism 400, and then the carrier frame 110 is adjusted above the support frames 410. The carrier frame 110 is supported by the support frames 410, and the transport vehicle 200 can then proceed from... The vehicle can move forward or backward along the length of the support frame 410, and then move to the ground via the ramp 420. Wheeled vehicles can be moved onto the support frame 110 via the platform mechanism 400, and then back to their original position via the support frame 110. The wheeled vehicles can then be transferred from the ground to the railway flatcar 100. The railway flatcar 100 can move along the railway track 600, carrying the wheeled vehicles to the rescue target location. Simultaneously, after connecting the platform assembly to the frame 210, the platform mechanism 400 is adjusted to... Figure 8 The folded state reduces the size of the platform mechanism 400. The platform component travels on the ground with the transport vehicle 200, and the transport vehicle 200 can also move the platform component to the rescue target location.

[0050] When a wheeled vehicle on the support frame 110 needs to be transferred to the ground, the transport vehicle 200 is moved to one side of the railway track 600, and the platform mechanism 400 is adjusted to the unfolded state so that the platform mechanism 400 in the unfolded state is close to one side of the railway track 600. The support frame 110 on the railway flatcar 100 is moved to the support frame 410 in the platform mechanism 400, so that the wheeled vehicle on the support frame 110 can move down to the ground through the support frame 410 and the ramp 420 in the platform mechanism 400.

[0051] Of course, when the platform mechanism 400 and the railway flatcar 100 are in the aforementioned relative positions, the transport car 200 can also be moved onto the support frame 110 via the platform mechanism 400, and then moved horizontally above the railway flatcar 100 via the support frame 110, thereby realizing the transfer operation of the transport car 200 between the ground and the railway flatcar 100. Then, the platform components are connected to the frame 210 of the transport car 200, and the platform mechanism 400 is adjusted to the position described above. Figure 1 In the folded state shown, the transport vehicle 200 is located directly above the railway flatcar 100, and the railway flatcar 100 can move the transport vehicle 200 along the railway track 600.

[0052] Unlike existing technologies, in this invention, the support frame 110 can be moved to above either side of the railway track 600. Correspondingly, on the transport vehicle 200, the translation frame 220 can be moved to the side above either side of the frame 210. This facilitates the installation of the platform assembly on either side of the railway track 600, allowing wheeled vehicles to easily move onto the support frame 110 via the deployed platform mechanism 400, and then transfer to the railway flatcar 100, thus making it more convenient to use. Furthermore, the platform assembly allows the spacing between the two platform mechanisms 400 to be adjusted via the adjusting mechanism 500, making the platform assembly suitable for different widths. Wheeled vehicles can pass through the platform, and when the platform mechanism 400 is in a folded state, the width and size of the platform components are reduced by narrowing the distance between the two platform mechanisms 400, thereby reducing the resistance encountered by the transport vehicle 200 during travel. In addition, the platform components can be detachably mounted on the frame 210 of the transport vehicle 200, making it convenient to load and unload the platform components at any position. After adjusting the platform mechanism 400 to the folded state, wheeled vehicles can pass through easily. In this way, by improving the flexibility of loading and unloading the platform components, the needs for timeliness and flexibility in transportation in emergency rescue, disaster relief, national defense, and national economy are effectively met.

[0053] In order to enable the support frame 110 to move above any side of the railway track 600, a rotating component 120 is provided on the railway flatcar 100. A rotating plate 130 is provided at the output end of the rotating component 120. The rotating plate 130 is rotatably mounted on the railway flatcar 100. A telescopic mechanism 140 is provided on the rotating plate 130. The output end of the telescopic mechanism 140 is connected to the support frame 110.

[0054] Specifically, such as Figures 4-7 As shown, the railway flatcar 100 includes a base plate 160, and a traveling device 150 is arranged below the base plate 160. The traveling device 150 enables the base plate 160 to move along the railway track 600. A rotating assembly 120 is arranged on the base plate 160 and includes a rotating motor 121 and a rotating bearing 122. The rotating motor 121 is fixed to the base plate 160, and its output end is fixedly connected to a rotating plate 130. The outer ring of the rotating bearing 122 is fixedly connected to the base plate 160, and the inner ring is fixedly connected to the rotating plate 130. Thus, the rotating motor 121 controls the rotating plate 130 to rotate smoothly under the support of the rotating bearing 122.

[0055] The support frame 110 is positioned above the rotating plate 130. A through groove extending along its width is provided on the side of the support frame 110 adjacent to the rotating plate 130. A reinforcing plate 111 is fixed within the through groove, and both ends of the reinforcing plate 111 are fixedly connected to the inner walls of both sides of the through groove. Two telescopic mechanisms 140 are provided on the rotating plate 130. Each telescopic mechanism 140 includes a telescopic cylinder and a telescopic frame. Both ends of one side of the telescopic frame are fixedly connected to the rotating plate 130 and the piston rod of the telescopic cylinder, respectively. The cylinder barrel of the telescopic cylinder is fixed to the rotating plate 130. Fixed seats 141 and sliding seats 142 are connected to both ends of the other side of the telescopic cylinder, respectively. A guide rail 112 extending along its length is provided on the side of the reinforcing plate 111 adjacent to the telescopic mechanism 140. Fixed seats 141 are fixedly connected to guide rails 112, and sliding seats 142 are slidably connected to guide rails 112.

[0056] With the above structure, the telescopic cylinder drives the two ends of one side of the telescopic frame to move closer together, increasing the length of the telescopic frame. Simultaneously, the sliding seat 142 slides along the guide rail 112, pushing the guide rail 112 and the support frame 110, allowing the support frame 110 to move above the rotating plate 130. Finally, in conjunction with the rotating assembly 120, the support frame 110 can move above either side of the railway track 600. Figure 3 As shown, when a platform assembly is built on one side of the railway track 600 and the platform mechanism 400 is in the unfolded state, the support frame 110 can be moved above the support frame 410, and the support frame 410 is used to erect the support frame 110 so that wheeled vehicles and transport vehicles 200 can be transferred between the ground and the support frame 110 via the platform mechanism 400.

[0057] In order to control the distance between the two adjusting mechanisms 500, in this invention, the adjusting mechanism 500 includes a rotating unit 520 and adjusting units 510 that are connected one-to-one with the platform mechanism 400. The adjusting unit 510 includes an adjusting screw 511 and an adjusting sleeve 512 that is threadedly connected to the adjusting screw 511 and fixedly connected to one of the support frames 410. The rotating unit 520 drives the adjusting screw 511 to rotate around its own axis.

[0058] Specifically, such as Figures 14-16 As shown, the rotating unit 520 includes a rotating motor 521 fixed on the fixed frame 300. The output end of the rotating motor 521 is coaxially connected to a driving wheel 522. The driving wheel 522 is connected to a driven wheel 524 via a synchronous belt 523. The driven wheel 524 is mounted on the fixed frame 300 via a positioning bearing 525. The two sides of the driven wheel 524 are coaxially connected to the adjusting screws 511 in the two adjusting units 510 respectively. The adjusting screw sleeve 512 is fixedly connected to one of the support frames 410. An adjusting slider 513 is fixed below the adjusting screw sleeve 512. The fixed frame 300 is provided with a second sliding opening 302 extending along its own width direction. The adjusting slider 513 slides with the second sliding opening 302.

[0059] With the above structure, the rotary motor 521 starts, driving the drive wheel 522 to rotate. Through the synchronous belt 523, the driven wheel 524 rotates around its own axis under the support of the positioning bearing 525, causing the adjusting screw 511 to rotate around its own axis. Acting on the adjusting screw 511, under the sliding cooperation of the adjusting slider 513 and the second sliding port 302, the two platform mechanisms 400 are driven to move in opposite directions parallel to the width direction of the fixed frame 300, thereby adjusting the width of the two platform mechanisms 400 to suit different wheeled vehicles and transport vehicles 200.

[0060] In order to drive the translation frame 220 to extend from any side of the transport vehicle 200, so that the fixed frame 300 on the translation frame 220 can move the platform assembly to any side of the transport vehicle 200, and facilitate the switching of the platform mechanism 400 between the folded and unfolded states, the translation assembly 230 includes rollers 231 distributed along the width direction of the frame 210 and rotating around its own axis on the frame 210. The wheel surface of the rollers 231 abuts against the translation frame 220, and the rollers 231 are connected to a transmission unit that drives them to rotate.

[0061] Specifically, such as Figures 10-13As shown, the frame 210 is fixed on the chassis of the transport vehicle 200. The frame 210 and the transport vehicle 200 are in the same length and width direction. Rollers 231 are provided above both ends of the frame 210, which are distributed along their own width direction and rotate around their own axis. The roller 231 includes two rotating wheels distributed along its own axis and a sprocket fixed between the two rotating wheels on the same axis. The outer diameter of the sprocket is smaller than the outer diameter of the rotating wheels. The transmission unit includes a transmission motor 250 and a chain 260. The transmission motor 250 is fixed below the frame 210. The output end of the transmission motor 250 is fixedly connected to one of the chains 260 on the same axis. The sprockets are connected by the chain 260.

[0062] The translation frame 220 is attached to the top of the frame 210. The translation frame 220 is in the same length and width direction as the frame 210. The two ends of the translation frame 220 abut against the circumferential outer edge of the roller 231. The bottom surface of the translation frame 220 is provided with sliding grooves 222 arranged side by side along its own length direction. The two ends of the sliding grooves 222 are spaced apart from the two sides of the frame 210. The frame 210 is provided with first sliding openings 211 arranged side by side along its own length direction and corresponding one-to-one with the sliding grooves 222. The two ends of the first sliding openings 211 are spaced apart from the two sides of the frame 210. A sliding member 240 is provided between the first sliding openings 211 and the sliding grooves 222. The upper part of the sliding member 240 is adapted to and slides with the sliding grooves 222, and the lower part of the sliding member 240 is adapted to and slides with the first sliding openings 211.

[0063] With the above structure, the drive motor 250 in the transmission unit is started, causing one of the rollers 231 to rotate. This rotation, via the chain 260, drives the other rollers 231 to rotate synchronously. The rollers 231 act on both sides of the translation frame 220. Depending on the rotation direction of the rollers 231, the translation frame 220 can move along its width under the sliding cooperation of the sliding member 240, the first sliding opening 211, and the sliding groove 222. This moves the platform assembly above, moving the transport vehicle 200 to either side, facilitating the platform mechanism 400 to switch to its unfolded form and build a platform on the ground for the transport vehicle 200 and wheeled vehicles to pass through. Figure 8 and Figure 9 As shown.

[0064] In order to enable the platform mechanism to operate at 400... Figure 1 He Ru Figure 2The switch between the unfolded and folded forms is shown. A first rotation mechanism 430 is provided between adjacent support frames 410 to drive them to rotate relative to each other, with the rotation axis parallel to the width direction of the transport vehicle 200. A second rotation mechanism 440 is provided between the support frame 410 at the end and the ramp 420 to drive them to rotate relative to each other, with the rotation axis parallel to the width direction of the transport vehicle 200. The support frame 410 includes a central frame 411 that slides on the fixed frame 300 and extension frames 412 that are respectively provided at both ends of the central frame 411. The length of the central frame 411 is greater than or equal to twice the length of the extension frame 412. The support frame 410 is an open support frame 410 on one side, and the open side of the support frame 410 is set opposite to the side of itself used to support the carrier frame 110.

[0065] Specifically, such as Figure 8 , Figure 9 , Figures 17-19 As shown, the platform mechanism 400 includes a central frame 411, and two extension frames 412 are provided at both ends of the central frame 411, that is, a total of five support frames 410. The length of the central frame 411 is more than twice the length of the extension frames 412, so that the extension frames 412 can move directly above the central frame 411 by rotating.

[0066] Both ends of the central frame 411 are provided with second mating sleeves 414 arranged side by side along its own width direction. One end of the extension frame 412 is provided with a first mating sleeve 413 and the other end is provided with a second mating sleeve 414. The adjacent first mating sleeves 413 and second mating sleeves 414 are connected by a mating rod 415 that passes through them and extends along the width direction of the extension frame 412. One end of the mating rod 415 is fixed with a convex cap and the other end is provided with a mating screw. The mating screw is threaded with a mating nut 416, so that the two adjacent support frames 410 can be rotatably connected.

[0067] In two adjacent support frames 410, one of the support frames 410 is provided with a fourth sliding opening 417 extending along its own length on both sides. The first rotating mechanism 430 includes a first cylinder 431 disposed in the support frame 410. The piston rod of the first cylinder 431 is fixedly connected to a collar, which is sealed and sleeved on the outside of the first movable frame 432. Both ends of the first movable frame 432 pass through the two fourth sliding openings 417 and are hinged to a first drive rod 433. The first movable frame 432 is slidably connected to the support frame 410 through the fourth sliding openings 417. The first drive rod 433 is hinged to one end of the first rotating rod 435 through the first transmission rod 434. The other end of the first rotating rod 435 is hinged to the support frame 410 adjacent to the aforementioned support frame 410.

[0068] The first cylinder 431 can drive the first movable frame 432 to slide along the fourth sliding port 417, pull the first drive rod 433, change the position and direction of the first drive rod 433, and thus act on the first rotating rod 435 through the first transmission rod 434, thereby realizing the relative rotation of the two adjacent first support frames 410.

[0069] The second rotating mechanism 440 includes a second cylinder 441 disposed in an extension frame 412 at the end position. The extension frame 412 has an opening on the side adjacent to the ramp 420. The cylinder barrel of the second cylinder 441 is fixed on the extension frame 412, and the piston rod is hinged to the ramp 420 through a second rotating rod 442 that passes through the bayonet.

[0070] The extension and retraction of the piston rod of the second cylinder 441 acts on the second rotating rod 442, thereby causing the ramp 420 to rotate. Adjusting the angle of the ramp 420 allows the platform mechanism 400 to be switched to an unfolded state when needed, tilting it to facilitate the passage of the transport vehicle 200 and wheeled vehicles. When switching to a folded state, the ramp 420 is adjusted to a vertical position adjacent to the extension frame 412 to reduce the size of the platform mechanism 400. Thus, the first rotating mechanism 430 drives the two adjacent support frames 410 to rotate relative to each other, and the second rotating mechanism 440 drives the end extension frame 412 to rotate relative to the ramp 420, enabling the platform mechanism 400 to switch between unfolded and folded states.

[0071] A further improvement is that a support mechanism is provided on the support frame 410. The support mechanism includes a support column 450 and a movable component 460 that drives the support column 450 to move between the storage position and the support position. The support column 450 in the storage position is located inside the support frame 410, and the support column 450 in the support position is used to support the support frame 410. The support column 450 is an adjustable length support column 450.

[0072] Specifically, the movable component 460 is a ball screw mechanism, including a drive motor 461 fixed in the support frame 410, a drive screw 462 fixedly connected to the drive motor 461 along the same axis, a bushing 464 sleeved at the end of the drive screw 462 and fixed in the support frame 410, a drive sleeve 463 threadedly connected to the drive screw 462, and a drive connecting rod 465 with both ends hinged to the drive sleeve 463 and the support column 450 respectively; the support column 450 is a support cylinder, whose cylinder is rotatably arranged about the width direction perpendicular to the support frame 410 and hinged to the drive connecting rod 465, and a support plate is fixed to the end of the piston rod.

[0073] With the above structure, the drive motor 461 starts, driving the drive screw 462 to rotate under the support of the bushing 464, acting on the drive sleeve 463. This causes the drive sleeve 463 to move axially along the drive screw 462, while simultaneously driving the cylinder of the support cylinder to rotate via the drive connecting rod 465. When the support cylinder is in the same length direction as the support frame 410, it is in the retracted position. When the support cylinder is in the axial direction perpendicular to the length direction of the support frame 410, it is in the supporting position, and the support plate contacts the ground, thus supporting the support frame 410. In addition, in this state, the height of the support frame 410 can be adjusted by moving the piston rod of the support cylinder, thereby adjusting the height of the platform. This facilitates the support frame 410 abutting against the top of the carrier frame 110, supporting the carrier frame 110, so that wheeled vehicles and transport vehicles 200 can be transferred between the ground and the carrier frame 110.

[0074] A further improvement is that the ramp 420 includes support plates 421 that slide sequentially along its own length and are connected in a limiting manner.

[0075] Specifically, such as Figure 17 and Figure 18 As shown, the ramp 420 includes four support plates 421 connected in sequence. Two adjacent support plates 421 are in contact with each other, and a third sliding opening 422 and a guide slider 423 are provided between them for sliding engagement. The third sliding opening 422 extends along the width direction of the ramp 420 and is located between the two ends of one of the support plates 421. The guide slider 423 is fixed on the other support plate 421. The guide slider 423 is a T-shaped block. While realizing the sliding engagement of two adjacent support plates 421 through the third sliding opening 422, it prevents the two support plates 421 from separating from each other.

[0076] Since the ramp 420 is in a downward tilt or vertical downward state, when the platform mechanism 400 is unfolded, the support plate 421 at the lower position can slide down along the third sliding opening 422 until the end support plate 421 contacts the ground, and the ramp 420 is formed by multiple support plates 421 connected in sequence. When the platform mechanism 400 is in a folded state, except for the support plate 421 connected to the end extension frame 412, the remaining support plates 421 can be manually slid upward to adjust to the same height position as the support plate 421 connected to the end extension frame 412, so that each support plate 421 falls on the fixed frame 300, which facilitates the storage of the platform mechanism 400.

[0077] A further improvement is that the translation frame 220 and the fixed frame 300 are connected by a plug-in joint.

[0078] Specifically, such as Figure 11 and Figure 12 As shown, positioning protrusions 221 are provided at the four adjacent positions of the translation frame 220, such as... Figure 16As shown, the four corners of the fixing frame 300 are provided with positioning ports 301 that correspond one-to-one with the positioning protrusions 221 and are inserted into each other.

[0079] When platform mechanism 400 is located as follows Figure 9 When the position is shown, the piston rod of the support cylinder extends outward, lifting the support frame 410 and the fixed frame 300 upward, thus separating the positioning port 301 from the positioning protrusion 221. Then, the translation frame 220 is moved to directly above the vehicle frame 210 via the translation component 230, and the transport vehicle 200 moves forward or backward, completing the separation of the platform assembly from the transport vehicle 200. Afterward, the support mechanism corresponding to the center frame 411 extends outward from the center frame 411, adjusting the height of each support frame 410 to facilitate connection with the carrier frame 110. When it is necessary to connect the platform assembly to the transport vehicle 200, the support mechanism corresponding to the center frame 411 performs a corresponding action, causing the support cylinder to move to the retracted position, and then the support mechanism corresponding to the extension frame 412... The hydraulic cylinder increases the height of the fixed frame 300 and the support frame 410. The driver adjusts the position of the transport vehicle 200 so that the translation frame 220 is located to the side and below the center frame 411. Then, the translation component 230 is used to adjust the horizontal position of the translation frame 220, so that the positioning protrusion 221 moves directly below the positioning port 301. The hydraulic cylinder then controls the fixed frame 300 and the support frame 410 to descend, so that the positioning protrusion 221 is inserted and connected with the positioning port 301. The hydraulic cylinder is then adjusted to the storage position. Through the first rotation mechanism 430 and the second rotation mechanism 440, the platform mechanism 400 is adjusted to a folded form. The distance adjustment mechanism 500 controls the two platform mechanisms 400 to move closer to each other to reduce the size of the platform components. Finally, it is adjusted to the position shown. Figure 8 The state shown.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle-mounted adjustable width platform, characterized in that, include: A railway flatcar, wherein the top of the railway flatcar is provided with a support frame that can be moved above either side of the railway track; A transport vehicle, which is mounted on the support frame, includes a frame, and a translation frame and a translation component that drives the translation frame to move along its own width direction to the upper sides of the frame. A platform assembly includes a fixed frame detachably connected to the sliding frame, platform mechanisms disposed on both sides of the fixed frame, and a spacing adjustment mechanism for adjusting the distance between the platform mechanisms. The platform mechanisms have a folded form and an unfolded form, and include multiple support frames connected in sequence and ramps connected to the support frames at both ends. In the folded form, the platform mechanisms are positioned above the fixed frame. In the unfolded form, the support frames are connected in sequence along the length of the railway to support the load-bearing frame. Each support frame includes a central frame that slides on the fixed frame and extension frames disposed at both ends of the central frame. The length of the central frame is greater than or equal to twice the length of the extension frames. The support frame is an open-side support frame, with the open side facing away from the side that supports the load-bearing frame. A support mechanism is provided on the support frame, and the support mechanism includes a support column and a movable component that drives the support column to move between a retracted position and a supported position. The support column in the retracted position is disposed inside the support frame, and the support column in the supported position supports the support frame. The ramp abuts the ground to allow the transport vehicles and wheeled vehicles to move between the railway flatcar and the ground.

2. The vehicle-mounted adjustable width platform as described in claim 1, characterized in that, A first rotation mechanism is provided between adjacent support frames to drive them to rotate relative to each other, with the rotation axis parallel to the width direction of the transport vehicle. A second rotation mechanism is provided between the support frame at the end and the ramp to drive them to rotate relative to each other, with the rotation axis parallel to the width direction of the transport vehicle.

3. The vehicle-mounted adjustable width platform as described in claim 1, characterized in that, The support column is an adjustable length support column.

4. The vehicle-mounted adjustable width platform as described in claim 3, characterized in that, The translation frame and the fixed frame are inserted into each other.

5. The vehicle-mounted adjustable platform as described in claim 4, characterized in that, The translation component includes rollers distributed along the width direction of the frame and rotating on the frame about their own axis. The wheel surface of the rollers abuts against the translation frame, and the rollers are connected to a transmission unit that drives their own rotation.

6. The vehicle-mounted adjustable width platform as described in claim 3, characterized in that, The ramp includes support plates that slide sequentially along its own length and are connected in a limiting manner.

7. The vehicle-mounted adjustable width platform as described in claim 1, characterized in that, The adjusting mechanism includes a rotating unit and adjusting units that are connected to the platform mechanism one by one. The adjusting unit includes an adjusting screw and an adjusting sleeve that is threaded to the adjusting screw and fixedly connected to one of the support frames. The rotating unit drives the adjusting screw to rotate around its own axis.

8. The vehicle-mounted adjustable width platform as described in claim 1, characterized in that, The railway flatcar is equipped with a rotating assembly, and the output end of the rotating assembly is equipped with a rotating plate. The rotating plate is rotatably mounted on the railway flatcar, and the rotating plate is equipped with a telescopic mechanism. The output end of the telescopic mechanism is connected to the support frame.

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