Multifunctional carriage and metro truck

Abstract

The invention provides a multifunctional carriage. The multifunctional carriage comprises a frame, two folding side plates, a top plate, two movable side plates and a driving mechanism, the frame is used for placing goods, and first rotating shafts are arranged on the two sides of the frame; the two folding side plates are located on the two sides of the frame correspondingly, the bottoms of the two folding side plates are rotationally connected with the two first rotating shafts correspondingly, and the tops of the folding side plates are connected with the frame in an up-down sliding mode; the top plate is located above the folding side plates, and the two sides of the top plate are correspondingly connected with and rotationally matched with the two folding side plates; the two movable side plates are connected to the two ends of the frame respectively; the driving mechanism is arranged on the frame, the output end of the driving mechanism is connected with the two folding side plates, and the driving mechanism is used for driving the two folding side plates to stretch into a vertical state or be folded into a horizontal state. According to the multifunctional carriage, the vehicle utilization rate can be increased, and the transportation cost is reduced. The invention further provides a railway wagon comprising a plurality of multifunctional carriages which are sequentially connected.

Description

Technical Field

[0001] The invention belongs to the technical field of railway freight cars, and in particular relates to a multifunctional carriage and a subway freight car. Background Art

[0002] Railway boxcars have side walls, floors and roofs to protect goods from the sun, rain and snow during transportation. Railway boxcars are highly protective and suitable for transporting grains, daily industrial products and valuable instruments and equipment.

[0003] There are doors on the side walls of railway boxcars, and the goods transported by railway boxcars are also limited by the height and width of the doors. When the length of the transported goods is greater than the width of the door or the height of the goods is greater than the height of the door, the goods cannot be placed inside the boxcar for transportation. In the prior art, railway flat cars are usually used to transport goods with higher heights. After transporting the goods from the starting point to the destination, railway trucks will also return the goods at the destination. However, due to the structural limitations of the boxcars, the boxcars cannot return the higher destination goods to the starting point when returning, and the utilization rate of railway vehicles is low. Therefore, it is only possible to transport key goods by adding additional railway flat cars, which increases transportation costs. Summary of the invention

[0004] The embodiments of the present invention provide a multifunctional carriage and a subway truck, aiming to improve the utilization rate of railway vehicles and reduce transportation costs.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: in the first aspect, a multifunctional carriage is provided, including a frame, two folding side panels, a top panel, two movable side panels and a driving mechanism; the frame is used to place goods, and a first rotating shaft is provided on both sides of the frame; the two folding side panels are respectively located on both sides of the frame, and the bottoms of the two folding side panels are respectively rotatably connected to the two first rotating shafts, and the tops of the folding side panels are slidably connected to the frame up and down; the top panel is located above the folding side panels, and the two sides of the top panel are respectively connected to the two folding side panels and rotatably cooperate; the two movable side panels are respectively connected to both ends of the frame; the driving mechanism is arranged on the frame, and the output end of the driving mechanism is connected to the two folding side panels, which is used to drive the two folding side panels to extend to a vertical state or fold to a horizontal state.

[0006] In combination with the first aspect, in a possible implementation, the folding side panel includes a lower folding plate and an upper folding plate, the lower end of the lower folding plate is rotatably connected to the first rotating shaft, the upper end of the lower folding plate is provided with a second rotating shaft, the lower end of the upper folding plate is rotatably connected to the second rotating shaft, and the upper end of the upper folding plate is rotatably connected to the top plate.

[0007] In combination with the first aspect, in a possible implementation, the lower folding plate includes a first inner plate and a first outer plate; a first sleeve is provided at the lower end of the first inner plate, and the first sleeve is rotatably connected to the first rotating shaft; the first outer plate is connected to the first inner plate, and a first buffer plate is sandwiched between the first inner plate, and a second rotating shaft is provided at the top end of the first outer plate.

[0008] In combination with the first aspect, in a possible implementation, the upper folding plate includes a second outer plate and a second inner plate; a second sleeve is provided at the lower end of the second outer plate, and the second sleeve is rotatably connected to the second rotating shaft; the second inner plate is connected to the second outer plate, and a second buffer plate is sandwiched between the second outer plate, and the second inner plate is rotatably connected to the top plate.

[0009] In combination with the first aspect, in a possible implementation, the top plate is slidably connected to the frame up and down, and third bushings are provided on both side edges of the top plate, and third rotating shafts are provided at the upper ends of the two second inner plates, and each third rotating shaft is respectively plugged into each third bushing to form a rotational fit.

[0010] In combination with the first aspect, in a possible implementation, the top of the folding side panel is rotatably connected to a limit plate, the limit plate is connected to the top plate, and the frame is provided with a limit groove suitable for the end of the limit plate to be embedded in to form an up and down sliding fit.

[0011] In combination with the first aspect, in a possible implementation, the driving mechanism includes a rotating driving member and two transmission assemblies. The rotating driving member is arranged on the frame, and the output end is connected to the two transmission assemblies; the two transmission assemblies are both arranged on the frame and are respectively connected to the two limit plates.

[0012] In combination with the first aspect, in a possible implementation, the transmission assembly includes a first worm, a second worm and two screw rods; the first worm is horizontally arranged and rotatably connected to the frame, and the first worm is connected to the output end of the rotating drive member; the second worm is horizontally arranged and perpendicular to the first worm, the second worm is rotatably connected to the frame, and a first worm wheel is provided at one end of the second worm, and the first worm wheel is meshed with the first worm; two threaded rods are respectively vertically arranged in the front and rear limit grooves on one side of the frame, and are both threadedly engaged with the limit plate, and the lower ends of the two threaded rods are each provided with a second worm wheel, and each second worm wheel is meshed with the second worm.

[0013] In combination with the first aspect, in a possible implementation, both ends of the limiting plate are provided with threaded through holes suitable for one of the threaded rods to pass through and form a threaded fit.

[0014] The beneficial effect of the multifunctional carriage provided by the present invention is that: compared with the prior art, the present invention places goods through the frame, and the two folding side panels are extended to a vertical state under the drive of the driving mechanism, and cooperate with the two movable side panels as the side walls of the carriage, and the top plate is used as the top wall of the carriage, which can prevent the goods from being exposed to the sun and rain when transporting goods; the two folding side panels can be folded into a horizontal state under the drive of the driving mechanism, and drive the top plate to move downward along the frame, so that the top plate can move to the bottom of the frame, and the upper surface of the top plate can be used to place goods. When the frame is used to transport goods whose height exceeds the maximum height of the top plate, the folding side panels are driven by the driving assembly to fold into a horizontal state and drive the top plate to move downward, so that the goods can be placed on the upper surface of the top plate. The frame can adapt to the transportation of goods of different heights, thereby improving the utilization rate of railway vehicles; and there is no need to use multiple types of railway carriages to adapt to different types of goods, which can reduce transportation costs.

[0015] In a second aspect, an embodiment of the present invention further provides a railway freight car comprising a plurality of multifunctional carriages connected in sequence.

[0016] The beneficial effect of the railway freight car provided by the present invention is that: compared with the prior art, the railway freight car of the present invention is provided with a plurality of multifunctional carriages connected in sequence, and each multifunctional carriage can drive the folding side panels to be folded into a horizontal state and change the position of the top plate on the frame to realize the placement and transportation of different types of goods through the driving assembly when transporting goods, which can improve the vehicle utilization rate of the railway freight car. A railway freight car equipped with a plurality of multifunctional carriages can complete the transportation of various types of goods, which can reduce the cost of cargo transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a multifunctional carriage provided by an embodiment of the present invention when forming a railway boxcar structure;

[0018] Figure 2 A schematic diagram of a three-dimensional structure in which a top plate provided by an embodiment of the present invention slides to a bottom wall of a frame;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of the multifunctional carriage provided by an embodiment of the present invention when forming a railway flat car structure;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of a vehicle frame used in an embodiment of the present invention;

[0021] Figure 5 for Figure 4 A partial view in;

[0022] Figure 6 for Figure 4 Partial view of B in FIG.

[0023] Figure 7 A schematic diagram of the three-dimensional structure of a folding side panel used in an embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of an exploded three-dimensional structure of a folding side panel and a top panel used in an embodiment of the present invention;

[0025] Fig. 9 It is a schematic diagram of the exploded front view structure of the folding side panels and the top panel used in the embodiment of the present invention;

[0026] In the figure: 10, frame; 11, first rotating shaft; 12, limiting groove; 20, folding side plate; 21, lower folding plate; 211, first inner plate; 2111, first sleeve; 212, first outer plate; 2121, second rotating shaft; 213, first buffer plate; 22, upper folding plate; 221, second outer plate; 2211, second sleeve; 222, second inner plate; 2221, third rotating shaft; 223, second buffer plate; 23, limiting plate; 30, top plate; 31, plug-in plate; 32, sliding rod; 33, sliding hole; 34, third sleeve; 40, movable side plate; 50, driving mechanism; 51, rotating driving member; 52, transmission assembly; 521, first worm; 522, second worm; 523, first worm wheel; 524, threaded rod; 525, second worm wheel. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] Please also read Figures 1 to 4The multifunctional carriage provided by the present invention is now described. The multifunctional carriage comprises a frame 10, two folding side panels 20, a top panel 30, two movable side panels 40 and a driving mechanism 50; the frame 10 is used to place goods, and first rotating shafts 11 are provided on both sides of the frame 10; the two folding side panels 20 are respectively located on both sides of the frame 10, the bottoms of the two folding side panels 20 are respectively connected to the two first rotating shafts 11, and the tops of the folding side panels 20 are connected to the frame 10 for sliding up and down; the top panel 30 is located above the folding side panels 20, and the two sides of the top panel 30 are respectively connected to the two folding side panels 20 for corresponding connection and rotational cooperation; the two movable side panels 40 are respectively connected to the two ends of the frame 10; the driving mechanism 50 is provided on the frame 10, and the output end of the driving mechanism 50 is connected to the two folding side panels 20, and is used to drive the two folding side panels 20 to extend to a vertical state or fold to a horizontal state.

[0030] It should be noted that the frame 10 is provided with a first rotating shaft 11 on both sides, and the two folding side panels 20 are respectively connected to the two first rotating shafts 11 for rotation, and can form two opposite side walls of the carriage when stretched to a vertical state; the two movable side panels 40 are respectively connected to the two ends of the frame 10, and can form the other two opposite side walls of the carriage. The two folding side panels 20 in a vertical state and the two movable side panels 40 and the top panel 30 together surround the frame 10 into a railway boxcar structure, and the goods are placed on the frame 10 and located between the two folding side panels 20 and the two movable side panels 40. The goods are located below the top panel 30, and the top panel 30 can prevent the goods from being exposed to the sun and rain when transporting the goods. The folding side panels 20 can be folded into a horizontal state under the drive of the driving mechanism 50, and drive the top panel 30 to move downward along the frame 10. When the two folding side panels 20 are in a horizontal state, they abut against the bottom wall of the frame 10, and the top panel 30 abuts against the folding side panels 20. At this time, the upper surface of the top panel 30 can be used to place goods. When the folded side panels 20 are in a horizontal state, the vehicle frame 10 forms a railway flat car structure, and the vehicle frame 10 can place and transport goods of relatively high height.

[0031] The beneficial effect of the multifunctional carriage provided by the present invention is that: compared with the prior art, the present invention places goods through the frame 10, the two folding side panels 20 are extended to a vertical state under the drive of the driving mechanism 50, and cooperate with the two movable side panels 40 as the side walls of the carriage, and the top plate 30 is used as the top wall of the carriage, which can prevent the goods from being exposed to the sun and rain when transporting goods; the two folding side panels 20 can be folded into a horizontal state under the drive of the driving mechanism 50, and drive the top plate 30 to move downward along the frame 10, so that the top plate 30 can move to the bottom of the frame 10, and the upper surface of the top plate 30 can place goods. When the frame 10 is used to transport goods with a height exceeding the maximum height of the top plate 30, the folding side panels 20 are driven by the driving assembly to fold into a horizontal state and drive the top plate 30 to move downward, so that the goods can be placed on the upper surface of the top plate 30. The frame 10 can adapt to the transportation of goods of different heights, improve the utilization rate of railway vehicles; and there is no need to use multiple types of railway carriages to adapt to different types of goods, which can reduce transportation costs.

[0032] In one possible implementation, see Figure 5 and Figure 6 The folding side panel 20 includes a lower folding plate 21 and an upper folding plate 22. The lower end of the lower folding plate 21 is rotatably connected to the first rotating shaft 11. The upper end of the lower folding plate 21 is provided with a second rotating shaft 2121. The lower end of the upper folding plate 22 is rotatably connected to the second rotating shaft 2121. The upper end of the upper folding plate 22 is rotatably connected to the top plate 30.

[0033] It should be noted that the lower folding plate 21 swings around the first rotating shaft 11 under the drive of the driving assembly. When the folding side plate 20 is switched to a horizontal state, the upper end of the lower folding plate 21 swings toward the inside of the frame 10, and drives the lower end of the upper folding plate 22 to swing toward the inside of the frame 10 through the second rotating shaft 2121. The upper end of the upper folding plate 22 slides along the frame 10 in the vertical direction under the swing of the lower folding plate 21; the upper end of the upper folding plate 22 is rotatably connected with the top plate 30. When the folding side plate 20 is folded to a horizontal state, the inner surface of the lower folding plate 21 can abut against the inner bottom wall of the frame 10, the outer surface of the upper folding plate 22 abuts against the outer surface of the lower folding plate 21, and the inner surface of the upper folding plate 22 abuts against the lower surface of the top plate 30, so that the top plate 30 moves to the bottom of the frame 10. The upper surface of the top plate 30 can be used as a plane for placing goods. When the height of the goods is higher than the maximum height of the top plate 30, the top plate 30 is moved down and the goods are placed through the upper surface of the top plate 30, which can improve the utilization rate of the vehicle.

[0034] In one possible implementation, see Figure 6The lower folding plate 21 includes a first inner plate 211 and a first outer plate 212; a first shaft sleeve 2111 is provided at the lower end of the first inner plate 211, and the first shaft sleeve 2111 is rotatably connected to the first rotating shaft 11; the first outer plate 212 is connected to the first inner plate 211, and a first buffer plate 213 is sandwiched between the first inner plate 211, and a second rotating shaft 2121 is provided at the top end of the first outer plate 212.

[0035] It should be noted that a first sleeve 2111 is provided at the lower end of the first inner plate 211, and a mounting groove may be provided on the vehicle frame 10. The first shaft 11 is rotationally fitted with the inner wall of the mounting groove, and the first sleeve 2111 is rotationally connected with the first shaft 11, and the mounting groove provides a rotation space for the first sleeve 2111. The first sleeve 2111 may be provided at an angle on one side of the bottom of the first inner plate 211. When the folding side plate 20 is extended to a vertical state, the first inner plate 211 is perpendicular to the inner bottom wall of the vehicle frame 10, the first sleeve 2111 is located in the mounting groove, and the bottom of the first inner plate 211 is in contact with the inner bottom wall of the vehicle frame 10. When the foldable side panel 20 is folded to a horizontal state, the first inner panel 211 rotates around the first rotating shaft 11 to abut against the inner bottom wall of the frame 10. The inner surface of the first inner panel 211 abuts against the inner bottom wall of the frame 10, which can avoid the first inner panel 211 and the inner bottom wall of the frame 10 from forming an angle, so that the first inner panel 211 can be stably placed on the inner bottom wall of the frame 10. The first buffer plate 213 can be made of rubber material and is arranged between the first inner panel 211 and the first outer panel 212. When the foldable side panel 20 is folded to a horizontal state, it increases the buffer between the lower folding panel 21 and the frame 10. When heavy goods are placed on the top panel 30, the first buffer plate 213 can provide shock absorption to avoid damage to the top panel 30 due to vibration of the frame 10 during the transportation of the goods.

[0036] In one possible implementation, see Figure 6 The upper folding plate 22 includes a second outer plate 221 and a second inner plate 222; a second sleeve 2211 is provided at the lower end of the second outer plate 221, and the second sleeve 2211 is rotatably connected to the second rotating shaft 2121; the second inner plate 222 is connected to the second outer plate 221, and a second buffer plate 223 is sandwiched between the second outer plate 221, and the second inner plate 222 is rotatably connected to the top plate 30.

[0037] It should be noted that a second sleeve 2211 is provided at the lower end of the second outer plate 221, a second shaft 2121 is provided at the upper end of the first outer plate 212, the second sleeve 2211 is sleeved on the second shaft 2121, the second outer plate 221 is rotatably connected to the first outer plate 212, when the folding side plate 20 is folded to a horizontal state, the bottom of the second outer plate 221 follows the first outer plate 212 to swing toward the inside of the frame 10, and can abut against the first outer plate 212 when the first inner plate 211 abuts against the inner bottom wall of the frame 10. The second sleeve 2211 can be provided at the outer side of the bottom of the second outer plate 221, the first outer plate 212 can be provided with a first rotation groove, the second shaft 2121 is provided in the first rotation groove, and the second sleeve 2211 is rotationally fitted with the inner wall of the first rotation groove, and the first rotation groove can provide a rotation space for the second sleeve 2211. When the foldable side panel 20 is extended to a vertical state, the bottom wall of the second outer panel 221 abuts against the top wall of the first outer panel 212; when the foldable side panel 20 is folded to a horizontal state, the second outer panel 221 swings around the second rotating shaft 2121 and abuts against the first outer panel 212. The second outer panel 221 and the first outer panel 212 are both kept horizontal, which can avoid the angle between the second outer panel 221 and the first outer panel 212, so that the second outer panel 221 can be stably placed on the first outer panel 212. The second buffer plate 223 can be made of rubber material. After the second outer panel 221 swings into the workshop and abuts against the first outer panel 212, it increases the buffer between the upper folding plate 22 and the top panel 30, and improves the shock absorption effect when heavy goods are placed on the upper surface of the top panel 30.

[0038] In some embodiments, when the foldable side panels 20 are extended to a vertical state, the frame 10, in conjunction with the foldable side walls, the movable side panels 40 and the top panel 30, can form a boxcar structure. After placing goods in the frame 10, the first buffer member and the second buffer plate 223 can provide buffering for the goods in the frame 10 to prevent the goods from colliding with the foldable side panels 20 and being damaged during operation.

[0039] In one possible implementation, see Figure 6 and Figure 7 The top plate 30 is slidably connected to the frame 10, and third shaft sleeves 34 are provided on both side edges of the top plate 30. The upper ends of the two second inner plates 222 are provided with third rotating shafts 2221, and each third rotating shaft 2221 is respectively plugged into each third shaft sleeve 34 to form a rotational fit.

[0040] It should be noted that the third shaft sleeves 34 are provided on both side edges of the top plate 30, which can be rotated with the third rotating shaft 2221, and can maintain the horizontal state when the folding side plate 20 is folded to the horizontal state, and can move downward along the frame 10. The top plate 30 can be composed of two plug-in plates 31 plugged into each other, one of the plug-in plates 31 can be provided with a plurality of sliding rods 32 at the bottom, and the other plug-in plate 31 can be provided with a plurality of sliding holes 33 at the bottom, and each sliding rod 32 is slidably connected in each sliding hole 33. The two plug-in plates 31 are respectively rotatably connected to the upper ends of the two second inner plates 222. When the folding side plate 20 is folded to the horizontal state, the two second inner plates 222 follow the second outer plate 221 to swing into the frame 10. Since the second inner plate 222 has a certain thickness, the folding side plate 20 will not only drive the plug-in plates 31 to produce vertical displacement, but also drive the plug-in plates 31 to produce horizontal displacement when it is folded to the horizontal state. The two third rotating shafts 2221 are arranged on the side where the upper ends of the two second inner plates 222 are close to each other, and the ends of the two plug-in boards 31 that are away from each other are provided with third shaft sleeves 34, and the third shaft sleeves 34 are rotatably connected with the third rotating shafts 2221. Therefore, when the folding side plate 20 is folded into a horizontal state, the two second inner plates 222 will drive the two third rotating shafts 2221 to move away from each other, and the two plug-in boards 31 will move away from each other under the drive of the third shaft sleeves 34. A plurality of sliding rods 32 and a plurality of sliding holes 33 are respectively arranged at the bottom of the two plug-in boards 31, and each sliding rod 32 always keeps a sliding fit with each sliding hole 33. The two plug-in boards 31 are slidably connected through the sliding rods 32. When the folding side plate 20 switches the working state, the two plug-in boards 31 always keep a horizontal state, and the two plug-in boards 31 can move away from each other in the process of moving downward, and move closer to each other in the process of moving upward, which can offset the displacement of the folding side plate 20 in the horizontal direction and avoid the device from getting stuck.

[0041] In one possible implementation, see Figure 6 and Figure 7 The top of the foldable side panel 20 is rotatably connected to a limiting plate 23, and the limiting plate 23 is connected to the top plate 30. The frame 10 is provided with a limiting groove 12 suitable for the end of the limiting plate 23 to be embedded in to form an upper and lower sliding fit.

[0042] It should be noted that the top of the folding side panel 20 is rotatably connected to the limit plate 23, that is, the upper folding plate 22 is rotatably connected to the limit plate 23. The four diagonal corners of the frame 10 are each provided with a limit groove 12, and the two ends of a limit plate 23 are respectively slidably connected to the two limit grooves 12, and the two limit grooves 12 cooperate to clamp a limit plate 23, and the side wall of the limit plate 23 is slidably fitted with the inner wall of the limit groove 12. When the folding side panel 20 is folded to a horizontal state, the limit plate 23 slides downward in the limit groove 12 along the vertical direction, so that the lower surface of the top plate 30 abuts against the folding side panel 20, so that the upper surface of the top plate 30 can be placed on the cargo, thereby improving the utilization rate of the railway vehicle.

[0043] In one possible implementation, see Figure 4 The driving mechanism 50 includes a rotating driving member 51 and two transmission assemblies 52. The rotating driving member 51 is arranged on the frame 10, and the output end is connected to the two transmission assemblies 52; the two transmission assemblies 52 are both arranged on the frame 10 and are respectively connected to the two limit plates 23.

[0044] It should be noted that the rotary drive member 51 can be a dual-shaft motor with two output ends, and is respectively connected to two transmission components 52, and can provide torque to the two transmission components 52 at the same time, so that the two limit plates 23 can slide in the limit grooves 12 at the same time.

[0045] In one possible implementation, see Figure 8 and Fig. 9 The transmission assembly 52 includes a first worm 521, a second worm 522 and two screw rods; the first worm 521 is horizontally arranged and rotatably connected to the frame 10, and the first worm 521 is connected to the output end of the rotary drive member 51; the second worm 522 is horizontally arranged and perpendicular to the first worm 521, the second worm 522 is rotatably connected to the frame 10, and one end of the second worm 522 is provided with a first worm wheel 523, and the first worm wheel 523 is meshed with the first worm 521; two threaded rods 524 are respectively vertically arranged in the front and rear limiting grooves 12 on one side of the frame 10, and are both threadedly matched with the limiting plate 23, and the lower ends of the two threaded rods 524 are both sleeved with second worm wheels 525, and each second worm wheel 525 is meshed with the second worm 522.

[0046] It should be noted that when the foldable side panel 20 is in a vertical state, the first worm 521 is perpendicular to the foldable side panel 20 and connected to the output end of the rotary drive member 51, and can rotate under the drive of the rotary drive member 51, and drive the second worm 522 to rotate through the first worm gear 523. The second worm 522 is perpendicular to the movable side panel 40, and can rotate under the drive of the first worm 521, and drive the threaded rod 524 to rotate through the second worm gear 525.

[0047] In one possible implementation, see Figure 5 Both ends of the limiting plate 23 are provided with threaded through holes suitable for one of the threaded rods 524 to pass through and form threaded fit.

[0048] It should be noted that the through hole is provided with an internal thread, which can be threadedly matched with the threaded rod 524. The side wall of the limit plate 23 is slidably fitted with the inner wall of the limit groove 12. When the threaded rod 524 rotates in the limit groove 12, the meshing thread drives the limit plate 23 to slide in the limit groove 12 to achieve the folding movement of the folding side plate 20, so that the top plate 30 can slide downward along the limit groove 12, and can be placed on the upper surface of the folding side plate 20 after abutting against the horizontal state for transportation, thereby improving the utilization rate of railway vehicles and reducing transportation costs.

[0049] In a second aspect, an embodiment of the present invention further provides a railway freight car comprising a plurality of multifunctional carriages connected in sequence.

[0050] It should be noted that a plurality of multifunctional compartments may be provided on the vehicle body. When the goods to be transported are of various types and different volumes, the folding side panels 20 and movable side panels 40 on each frame 10 may be adaptively adjusted according to the actual volume of the goods, so that each cargo can be placed on the frame 10 and the top plate 30 for transportation, thereby improving the utilization rate of the vehicle and reducing the transportation cost.

[0051] The beneficial effect of the railway freight car provided by the present invention is that: compared with the prior art, the railway freight car of the present invention is provided with a plurality of multifunctional carriages connected in sequence, and each multifunctional carriage can drive the folding side panels 20 to be folded into a horizontal state through the driving assembly when transporting goods and change the position of the top panel 30 on the frame 10 to realize the placement and transportation of different types of goods, which can improve the vehicle utilization rate of the railway freight car, and can complete the transportation of various types of goods through a railway freight car equipped with a plurality of multifunctional carriages, which can reduce the cost of cargo transportation.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Multifunctional carriage, characterized in that: include: A frame, used for placing goods, with first rotating shafts being provided on both sides of the frame; Two folding side panels are respectively located on both sides of the frame, the bottoms of the two folding side panels are respectively rotatably connected to the two first rotating shafts, and the tops of the folding side panels are slidably connected to the frame up and down; A top plate, located above the folding side plates, with two sides of the top plate correspondingly connected to the two folding side plates and rotatably matched; Two movable side panels are respectively connected to two ends of the frame; The driving mechanism is arranged on the frame, and the output end of the driving mechanism is connected to the two folding side panels, and is used for driving the two folding side panels to extend to a vertical state or fold to a horizontal state.

2. The multifunctional carriage according to claim 1, characterized in that: The folding side panel includes a lower folding plate and an upper folding plate, the lower end of the lower folding plate is rotatably connected to the first rotating shaft, the upper end of the lower folding plate is provided with a second rotating shaft, the lower end of the upper folding plate is rotatably connected to the second rotating shaft, and the upper end of the upper folding plate is rotatably connected to the top plate.

3. The multifunctional carriage according to claim 2, characterized in that: The lower folding plate comprises: A first inner plate, a first sleeve being provided at a lower end thereof, wherein the first sleeve is rotatably connected to the first rotating shaft; The first outer plate is connected to the first inner plate, and a first buffer plate is sandwiched between the first outer plate and the first inner plate. The second rotating shaft is disposed at the top end of the first outer plate.

4. The multifunctional carriage according to claim 3, characterized in that: The upper folding plate comprises: A second outer plate, a second shaft sleeve is provided at the lower end thereof, and the second shaft sleeve is rotatably connected to the second rotating shaft; The second inner plate is connected to the second outer plate, and a second buffer plate is sandwiched between the second inner plate and the second outer plate. The second inner plate is rotatably connected to the top plate.

5. The multifunctional carriage according to claim 4, characterized in that: The top plate is slidably connected to the frame up and down, and third shaft sleeves are provided on both side edges of the top plate, and third rotating shafts are provided on the upper ends of the two second inner plates, and each third rotating shaft is correspondingly plugged into each third shaft sleeve to form a rotational fit.

6. The multifunctional carriage according to claim 1, characterized in that: The top of the foldable side plate is rotatably connected to a limiting plate, the limiting plate is connected to the top plate, and the frame is provided with a limiting groove suitable for the end of the limiting plate to be embedded in to form an up and down sliding fit.

7. The multifunctional carriage according to claim 6, characterized in that: The driving mechanism includes a rotating driving member and two transmission assemblies. The rotating driving member is arranged on the frame, and the output end is connected to the two transmission assemblies; the two transmission assemblies are both arranged on the frame and are respectively connected to the two limit plates.

8. The multifunctional carriage according to claim 7, characterized in that: The transmission assembly comprises: A first worm gear, arranged horizontally and rotatably connected to the frame, wherein the first worm gear is connected to an output end of the rotary drive member; A second worm is horizontally arranged and perpendicular to the first worm, the second worm is rotatably connected to the frame, and a first worm wheel is provided at one end of the second worm, the first worm wheel is meshed with the first worm; Two threaded rods are respectively vertically arranged in the front and rear limiting grooves on one side of the frame, and are threadedly matched with the limiting plate. The lower ends of the two threaded rods are sleeved with second worm gears, and each of the second worm gears is meshed with the second worm.

9. The multifunctional carriage according to claim 8, characterized in that: Both ends of the limiting plate are provided with threaded through holes suitable for one of the threaded rods to pass through and form threaded fit.

10. A railway freight car comprising a plurality of multifunctional carriages as claimed in any one of claims 1 to 9 connected in sequence.

Images