Cargo handling equipment for rail transport

Abstract

The present invention discloses a cargo loading and unloading device for railway transportation, comprising: a lifting platform, which is movable; a plurality of sequentially connected transmission units, the transmission units comprising two pairs of support rods, the two pairs of support rods are connected by a bidirectional telescopic rod, the upper part of each pair of support rods is commonly connected to a first fixed shaft, the first fixed shaft is provided with a plurality of steel first skateboard wheels, two second positioning cylinders with internal threads are rotatably provided on the fixed part of the bidirectional telescopic rod, a matching second threaded rod is provided in the second positioning cylinder, the second threaded rods on the two bidirectional telescopic rods are connected one by one by a second fixed shaft, and a plurality of steel second skateboard wheels are provided at intervals along the length direction of the second fixed shaft. The present invention can not only realize the transmission of cargo by arranging the second positioning cylinder, the second threaded rod, the bidirectional telescopic rod, and the first skateboard wheel, but also realize the telescopic operation of the loading and unloading device, so as to facilitate the transfer of the position of the loading and unloading device.

Description

Technical Field

[0001] The present invention relates to the technical field of railway transportation equipment, and more particularly to a cargo handling device for railway transportation. Background Art

[0002] Railway transportation is a mode of transportation that uses railway trains to transport passengers and goods. It plays an important role in the process of social material production. Its characteristics are large transportation volume, fast speed and low cost. When the goods transported by railway are unloaded outdoors, some goods need to be transported by people entering the carriage. In order to reduce manpower, they are generally transferred by conveyor belts. The patent with authorization announcement number "CN214985357U" discloses a railway transportation loading and unloading device, which controls the movement of the conveyor belt through gears and racks so that one end of the conveyor belt can be extended to the inside of the train carriage through movement, but the conveyor belt of the device itself cannot be extended, which affects the use of the loading and unloading device. Summary of the invention

[0003] One purpose of the present invention is to provide a cargo loading and unloading device for railway transportation, which can not only realize the transmission of cargo but also extend and retract the loading and unloading device by setting a second positioning cylinder, a second threaded rod, a two-way telescopic rod, and a first skateboard wheel, so as to facilitate the transfer of the position of the loading and unloading device.

[0004] In order to achieve these objects and other advantages of the present invention, there is provided a cargo handling device for railway transportation, characterized in that it comprises:

[0005] A lifting platform, which is movable;

[0006] A plurality of sequentially connected transmission units, wherein the transmission units are arranged on the lifting platform, the transmission units include two pairs of support rods, the two pairs of support rods are connected by two bidirectional telescopic rods, the upper part of each pair of support rods is commonly connected to a first fixed shaft, the first fixed shaft is provided with a plurality of steel first skateboard wheels, two second positioning cylinders with internal threads are rotatably provided on the fixed part of the bidirectional telescopic rod, a matching second threaded rod is provided in the second positioning cylinder, the second threaded rods on the two bidirectional telescopic rods are connected one by one by the second fixed shaft, a plurality of steel second skateboard wheels are provided on the second fixed shaft at intervals along its length direction, and the support rod moves relative to the second positioning cylinder to drive the second positioning cylinder to rotate;

[0007] Among them, any two adjacent transmission units are connected by two connecting rods, and a plurality of connecting rods are hinged with retractable legs. When the bidirectional telescopic rod is contracted to the shortest, the second fixed axis is located below the first fixed axis. When the bidirectional telescopic rod is extended, the second positioning cylinder rotates and drives the second fixed axis to rise until the top ends of the first fixed axis and the second fixed axis are located on the same inclined plane.

[0008] Preferably, two second support rods are provided on the fixed part of the bidirectional telescopic rod, the second support rods are provided with the second positioning cylinders for rotation in a one-to-one correspondence, the second positioning cylinders are coaxially provided with a second gear, and a first fixing plate is provided on the support rod, the first fixing plate and the second positioning cylinders are arranged in a one-to-one correspondence, a plurality of first meshing teeth are provided on the first fixing plate at intervals along the length direction thereof, the first meshing teeth are meshed with the second gear to drive the second positioning cylinder to rotate through the movement of the support rod.

[0009] Preferably, the fixed part of the bidirectional telescopic rod is provided with a support plate, and two rotatable third positioning cylinders are provided on the support plate, and the third positioning cylinder can slide along the telescopic direction of the bidirectional telescopic rod, and the third positioning cylinder has an internal thread, and a matching third threaded rod is provided in the third positioning cylinder, and a third fixed shaft is provided on the upper part of the corresponding two third threaded rods, and a plurality of steel third skateboard wheels are provided on the third fixed shaft, wherein, when the bidirectional telescopic rod is contracted to the shortest, the third fixed shaft is located below the second fixed shaft, and when the bidirectional telescopic rod is extended to the longest, the third positioning cylinder moves and drives the third fixed shaft to rise until the third fixed shaft, the second fixed shaft and the first fixed shaft are located on the same inclined plane.

[0010] Preferably, a third support rod is rotatably provided at the bottom end of the third positioning cylinder, the bottom end of the third support rod is slidably connected to the support plate, a third fixing plate is provided on the third support rod, a plurality of third meshing teeth are provided on the third fixing plate along its length direction, a third gear is coaxially provided at the lower part of the second positioning cylinder, the third gear is meshed with the third meshing teeth to drive the third positioning cylinder to move synchronously with the support rod through the rotation of the second positioning cylinder;

[0011] A column is provided on the support plate, a fourth fixing plate is provided on the column, a plurality of fourth meshing teeth are provided on the fourth fixing plate, a fifth gear is coaxially provided on the third positioning cylinder, the fifth gear meshes with the fourth meshing teeth to achieve synchronous movement of the third positioning cylinder and the support rod, and can also drive the third fixed axis to move upward to the lowest height of the second fixed axis;

[0012] A fifth fixed plate is provided on the support rod, and the fifth fixed plate and the fourth fixed plate are respectively located on both sides of the fifth gear. A plurality of fifth meshing teeth are provided on the fifth fixed plate, and the fifth meshing teeth are meshed with the fifth gear to drive the third positioning cylinder to rotate through the support rod movement until the third fixed axis, the second fixed axis and the first fixed axis are located on the same inclined plane.

[0013] Preferably, it also includes:

[0014] A transfer assembly is arranged between a plurality of conveying units, the transfer assembly comprising a movable base, a first vertical plate and a second vertical plate arranged on the base, two sixth gears arranged on the first vertical plate, the two sixth gears are connected by a chain, a plurality of driving plates are arranged on the chain, a first annular first slide rail is arranged on the first vertical plate, a plurality of first sliders are arranged on the first slide rail, a first connecting shaft is rotatably arranged on the first slider, a connecting plate is arranged on the first connecting shaft, a second connecting shaft is arranged on the connecting plate, a plurality of driving plates are rotatably connected with a plurality of second connecting shafts in a one-to-one correspondence, a load-bearing plate is arranged on the second connecting shaft, a plurality of load-bearing rods are arranged on the load-bearing plate at intervals in a horizontal direction, two fixed blocks are arranged on the second vertical plate, a plurality of transfer rods are arranged on the fixed block, and the plurality of load-bearing rods pass through the gaps between the plurality of transfer rods to transfer the goods on the transfer rods;

[0015] The fixed block located in the front in the direction of cargo transfer is lower than the fixed block located in the rear, the fixed block located at the lowest position and the corresponding transfer rod are used to receive the cargo transported by the multiple conveying units located in front of the transfer component, the fixed block located at the lowest position and the corresponding transfer rod are used to transfer the cargo to the transfer component, and the multiple transfer rods at the highest position are used to transfer the cargo to the multiple conveying units located behind the transfer component.

[0016] Preferably, the fixed block located at a high position is arranged to be tilted downward, and a second guide plate for receiving the goods on the transfer rod is provided between the first vertical plate and the second vertical plate, and the lower end of the second guide plate is arranged close to the first fixed axis located at the end.

[0017] Preferably, the first vertical plate and the second vertical plate are provided with an inclined first guide plate at the position of the lowest fixed block, the lower end of the first guide plate is arranged close to the transfer rod, and the high end is arranged close to the first fixed axis located at the lower end to transfer the goods of the conveying unit to the transfer rod.

[0018] Preferably, an annular baffle is provided on the second vertical plate.

[0019] The present invention has at least the following beneficial effects:

[0020] First, the present invention can not only realize the transmission of goods, but also realize the extension and retraction of the loading and unloading device by setting the second positioning cylinder, the second threaded rod, the two-way telescopic rod, and the first skateboard wheel, so as to facilitate the transfer of the position of the loading and unloading device, and at the same time adjust the height of the transmission surface; the present invention can realize the liftability of the second fixed axis by setting the second positioning cylinder and the second threaded rod; the distance between the two support rods can be adjusted by setting the two-way telescopic rod, and in conjunction with the liftable second fixed axis, on the one hand, it can effectively realize that when the distance between the two first fixed axes is large, the second fixed axis plays a supporting role, thereby expanding the length adjustment range of the loading and unloading device; on the other hand, in conjunction with the height-adjustable second fixed axis, when the two-way telescopic rod is extended to the shortest, the second fixed axis is located below the first fixed axis, which can not only reduce the size of the transmission unit, but also facilitate the movement of the lifting platform.

[0021] Second, the present invention realizes that the second positioning cylinder can be driven to rotate while the support rod moves by providing a first fixed plate, a first meshing tooth and a first gear on the first fixed plate; the present invention can effectively expand the distance between the two first fixed shafts by providing a third positioning cylinder, a third threaded rod and a third fixed shaft, and when no extension is required, the third fixed shaft is located below the second fixed shaft, and the extension length of the transmission unit is expanded without affecting the length of the loading and unloading device after contraction, thereby improving the use range of the loading and unloading device; the present invention can not only drive the second positioning cylinder to rotate when the support rod moves, but also drive the third positioning cylinder to move synchronously through a series of gear meshing mechanisms, and finally make the third fixed shaft rise to be on the same inclined plane as the second fixed shaft and the first fixed shaft.

[0022] Third, the present invention achieves the lifting of the goods by setting a transfer component, and then slides the goods down along the conveying surface to avoid the goods pausing on the conveying unit when the distance is long; the position of the goods is raised by setting the sixth gear, chain, and transfer rod; the present invention makes the goods slide down more smoothly by setting the fixed block at an angle, thereby reducing the amount of goods stuck on the load-bearing rod; the second guide plate is set to ensure that the goods can fall accurately into the conveying unit; the present invention guides the goods on the conveying unit to the transfer rod by setting the first guide plate, the lower end of the first guide plate is set close to the transfer rod, and the high end is close to the first fixed axis located at the lower end, forming a natural guiding path.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a cargo loading and unloading device for railway transportation according to one of the technical solutions described in the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0026] Figure 3 This is a schematic diagram of the structure of the transmission unit according to one of the technical solutions of the present invention, wherein the second fixed shaft is raised to the highest state;

[0027] Figure 4 This is a schematic diagram of the structure of the transmission unit according to one of the technical solutions of the present invention, wherein the third fixed shaft is raised to the highest state;

[0028] Figure 5 A schematic diagram of the structure of a transmission unit according to one of the technical solutions of the present invention;

[0029] Figure 6 This is a schematic structural diagram of a transfer assembly described in one of the technical solutions of the present invention;

[0030] Figure 7 This is a schematic structural diagram of a transfer assembly described in one of the technical solutions of the present invention;

[0031] Figure 8 This is a schematic structural diagram of a transfer assembly described in one of the technical solutions described in the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0033] like Figure 1-8 As shown, the present invention provides a cargo handling device for railway transportation, comprising:

[0034] A lifting platform 1, which is movable;

[0035] A plurality of sequentially connected transmission units, the transmission units are arranged on the lifting platform 1, the transmission units include two pairs of support rods 6, the two pairs of support rods 6 are connected by two bidirectional telescopic rods 8, the upper part of each pair of support rods 6 is commonly connected with a first fixed shaft 7, the first fixed shaft 7 is provided with a plurality of steel first skateboard wheels along its length direction, two second positioning cylinders 12 with internal threads are rotatably provided on the fixed part of the bidirectional telescopic rod 8, a matching second threaded rod 11 is provided in the second positioning cylinder 12, the second threaded rods 11 on the two bidirectional telescopic rods 8 are connected one by one through a second fixed shaft 10, a plurality of steel second skateboard wheels are arranged at intervals on the second fixed shaft 10, the support rod 6 moves relative to the second positioning cylinder 12 to drive the second positioning cylinder 12 to rotate;

[0036] Among them, any two adjacent conveying units are connected by two connecting rods 9, and a plurality of the connecting rods 9 are hinged with retractable legs 3. When the bidirectional telescopic rod 8 is contracted to the shortest, the second fixed shaft 10 is located below the first fixed shaft 7. When the bidirectional telescopic rod 8 is extended, the second positioning cylinder 12 rotates and drives the second fixed shaft 10 to rise to the first fixed shaft 7. The top ends of the second fixed shaft 10 are located on the same inclined plane to form a conveying plane.

[0037] In this technical solution, the bottom of the lifting platform 1 is equipped with wheels or tracks to facilitate the movement of the cargo loading and unloading equipment used for railway transportation. The lifting mechanism (such as a hydraulic cylinder, a spiral lifter, etc.) is arranged inside the platform to adjust the height of the entire lifting platform 1; the transmission unit is located on the lifting platform 1, and multiple transmission units are used to form a continuous cargo transmission path; each transmission unit includes two pairs of support rods 6, each pair of support rods 6 is arranged in parallel to provide a stable support structure for the transmission surface, and one support rod 6 of one pair of support rods 6 is supported by one support rod 6 of the other pair of support rods 6. The rods 6 are connected by a two-way telescopic rod 8, and the two ends of the two-way telescopic rod are connected to two support rods 6 in a one-to-one manner. The support rods 6 are perpendicular to the two-way telescopic rods. The distance between the two pairs of support rods 6 is adjusted by the two-way telescopic rod 8. The two first fixed shafts 7 corresponding to the two pairs of support rods 6 are arranged in parallel. The first fixed shaft 7 is installed on the top of the support rod 6. The first skateboard wheel is made of steel to ensure smooth and wear-resistant material transmission; each transmission unit has four second positioning cylinders 12, and the four second positioning cylinders 12 are located between the two pairs of support rods 6. The second positioning cylinders 12 are arranged in parallel with the support rods 6. By rotating the second fixed The positioning cylinder 12 can drive the second threaded rod 11 to move along the axial direction of the second positioning cylinder 12. There are four second positioning cylinders 12 on the two bidirectional telescopic rods 8, one second positioning cylinder 12 on one bidirectional telescopic rod 8 corresponds to one second positioning cylinder 12 on the other bidirectional telescopic rod 8, and the corresponding two second threaded rods 11 are provided with the second fixed axis 10 on the upper part, the second fixed axis 10 is parallel to the first fixed axis 7, and each second positioning cylinder 12 corresponds to a support rod 6; the second skateboard wheel is made of steel material to ensure smooth and wear-resistant material transmission, and the connecting rod 9 is along the bidirectional telescopic rod 8. The telescopic direction is set, and the telescopic legs 3 are vertically set to support multiple transmission units; one implementation method of the two-way telescopic rod 8 can be that the two-way telescopic rod 8 includes a connecting tube (equivalent to the fixed part of the two-way telescopic rod 8), and two groups of slide cylinders are sleeved in the connecting tube, and each group of slide cylinders includes a plurality of slide cylinders that are slidably connected in sequence, and the ends of the slide cylinders are connected to the support rod 6. The telescopic driving force of the two-way telescopic rod 8 can be achieved by human pulling or by setting a hydraulic cylinder; the telescopic legs 3 are mainly composed of an outer tube, an inner tube, a locking mechanism, a driving device and a control system; some connecting rods 9 are provided with telescopic legs 3.

[0038] During use, when not in use, the conveying units are all retracted to their shortest. At this time, the second fixed axis 10 and the second skateboard wheel thereon are located below the first fixed axis 7, the two-way telescopic rod 8 is retracted to its shortest, the second threaded rod 11 is rotated to the lowest position, and the first fixed axes 7 of multiple conveying units form an inclined surface. When in use, the lifting platform 1 is moved to the door of the compartment where unloading is required, the lifting platform 1 is raised until the top of the lifting platform 1 is flush with the compartment door, and the multiple conveying units connected in sequence are pulled to the conveying units located at a high position to reach the area where unloading is required. In the process of moving the conveying unit, the two-way telescopic rod 8 is extended, and the distance between the two first fixed axes 7 is increased. At the same time, the second positioning cylinder 12 rotates to drive the second fixed axis 10 to rise. After adjusting the conveying surface, the goods are placed on the high end of the conveying surface and the goods are pushed downward with force. The goods move downward along the conveying surface to the transfer vehicle. After use, the two-way telescopic rod 8 is shortened.

[0039] By adopting this technical solution, the present invention can not only realize the transmission of goods, but also realize the extension and retraction of the loading and unloading device by setting the second positioning cylinder 12, the second threaded rod 11, the two-way telescopic rod 8, and the first skateboard wheel, so as to facilitate the transfer of the position of the loading and unloading device, and at the same time adjust the height of the conveying surface; the present invention realizes the liftability of the second fixed axis 10 by setting the second positioning cylinder 12 and the second threaded rod 11; the distance between the two support rods 6 is adjusted by setting the two-way telescopic rod 8, and in conjunction with the liftable second fixed axis 10, on the one hand, it can effectively realize that when the distance between the two first fixed axes 7 is large, the second fixed axis 10 plays a supporting role, thereby expanding the length adjustment range of the loading and unloading device (if the second fixed axis 10 is not set, there is a problem of leakage when the distance between the two first fixed axes 7 is large); on the other hand, in conjunction with the height-adjustable second fixed axis 10, when the two-way telescopic rod 8 is retracted to the shortest, the second fixed axis 10 is located below the first fixed axis 7, which can reduce the size of the conveying unit, so as to facilitate the movement of the lifting platform 1.

[0040] In another technical solution, two second support rods 15 are provided on the fixed part of the bidirectional telescopic rod 8 (the second support rod 15 is arranged in parallel with the support rod 6, and the second support rod 15 is fixed to the fixed part of the bidirectional telescopic rod 8 by welding, bolt connection or other fastening methods), and the second support rods 15 are rotatably provided with the second positioning cylinders 12 in a one-to-one correspondence (the upper part of the second support rod 15 is provided with an annular second slide rail in the circumferential direction, and the second slide rail is provided with a plurality of second sliders, and the plurality of second sliders are all connected to the inner wall of the second positioning cylinder 12), and the outer wall of the second positioning cylinder 12 is coaxially provided with a second gear 40, and the support rod 6 is provided with a first fixing plate 19 (the first fixing plate 19 is in the shape of a long strip, and is arranged along the bidirectional telescopic The telescopic direction of the bidirectional telescopic rod 8 is set), the first fixed plate 19 and the second positioning cylinder 12 are set in a one-to-one correspondence, and the first fixed plate 19 is provided with a plurality of first meshing teeth 25 at intervals along its length direction. The first meshing teeth 25 mesh with the second gear 40 to drive the second positioning cylinder 12 to rotate through the movement of the support rod 6. During use, when the bidirectional telescopic rod 8 is extended, the first fixed plate 19 moves to drive the second gear 40 to rotate, and the rotation of the second gear 40 drives the second positioning cylinder 12 to rotate. The rotation of the second positioning cylinder 12 causes the second threaded rod 11 to move along the axial direction of the second positioning cylinder 12. When the bidirectional telescopic rod 8 is shortened, the second gear 40 rotates to drive the second positioning cylinder 12 to rotate in the opposite direction. With this technical solution, the present invention realizes that the second positioning cylinder 12 can be driven to rotate while the support rod 6 moves by setting the first fixed plate 19, arranging the first meshing teeth 25 and the second gear on the first fixed plate 19.

[0041] In another technical solution, the fixed portion of the bidirectional telescopic rod 8 is provided with a support plate 14 (the support plate 14 is arranged along the telescopic direction of the bidirectional telescopic rod 8, and the support plate 14 is in the shape of a long strip. The first rod body can be arranged on the support plate 14, and the support plate 14 is staggered with the support rod 6. The support plate 14 is made of high-strength lightweight material. In actual design, adjacent support plates can be staggered, for example, at different heights, to reduce the storage volume. Two rotatable third positioning cylinders 22 are provided on the support plate 14 (the second positioning cylinder 12 is parallel to the third positioning cylinder 22), and the third positioning cylinder 22 can be rotated along the bidirectional telescopic rod 8. Slide in the telescopic direction of the telescopic rod 8 (for the same two-way telescopic rod 8, each support rod 6 corresponds to a third positioning cylinder 22, the two second positioning cylinders 12 are located between the two third positioning cylinders 22, the support plate 14 is provided with a third slide rail, the third slide rail is provided with a third slider, the third slider is connected to the third positioning cylinder 22, the third slide rail is arranged along the telescopic direction of the two-way telescopic rod 8, the third positioning cylinder 22 can not only rotate around its own axis, but also slide along the length direction of the support plate 14), the third positioning cylinder 22 has an internal thread, and a matching third threaded rod 23 is arranged in the third positioning cylinder 22, the same The third threaded rods 23 on the two bidirectional telescopic rods 8 in each transmission unit are arranged in a one-to-one correspondence, and a third fixed shaft 13 is provided on the upper part of the two corresponding third threaded rods 23. The third fixed shaft 13 is parallel to the first fixed shaft 7 and the second fixed shaft 10. A plurality of steel third skateboard wheels (used to reduce friction and improve sliding efficiency) are evenly spaced on the third fixed shaft 13 along its length direction. When the bidirectional telescopic rod 8 is retracted to the shortest, the third fixed shaft 13 is located below the second fixed shaft 10. When the bidirectional telescopic rod 8 is extended to the longest, the third positioning cylinder 22 moves and drives the third fixed shaft The fixed axis 13 rises to the third fixed axis 13, the second fixed axis 10, and the first fixed axis 7 are located on the same inclined plane, and there is a corresponding third fixed axis 13 between each first fixed axis 7 and the second fixed axis 10. With this technical solution, the present invention can effectively expand the distance between the two first fixed axes 7 by setting the third positioning cylinder 22, the third threaded rod 23, and the third fixed axis 13, and when extension is not required, the third fixed axis 13 is located below the second fixed axis 10, and when the length of the loading and unloading device after contraction is not affected, the extension length of the transmission unit is expanded, thereby improving the use range of the loading and unloading device.

[0042] In another technical solution, a third support rod is rotatably provided at the bottom end of the third positioning cylinder 22 (the third support rod is perpendicular to the support plate 14), the bottom end of the third support rod is slidably connected to the support plate 14 (the third support rod is connected to the third slider, and the upper end of the third support rod is rotatably connected to the third positioning cylinder), a third fixing plate is provided on the third support rod (the third fixing plate is in the shape of a long strip), a plurality of third meshing teeth 17 are provided on the third fixing plate along its length direction, a third gear 16 is coaxially provided at the lower part of the second positioning cylinder 12, the third gear 16 is meshed with the third meshing teeth 17 to drive the three positioning cylinders and the support rod 6 to move synchronously through the rotation of the second positioning cylinder 12;

[0043] The support plate 14 is provided with a column 21, and the column 21 is provided with a fourth fixing plate 26 (the fourth fixing plate 26 is in the shape of a long strip, and the fourth fixing plate 26 is arranged along the telescopic direction of the two-way telescopic rod 8), and the fourth fixing plate 26 is provided with a plurality of fourth meshing teeth 18, and the third positioning cylinder 22 is coaxially provided with a fifth gear 24, and the fifth gear 24 is meshed with the fourth meshing teeth 18 to achieve the synchronous movement of the third positioning cylinder 22 and the support rod 6, and can also drive the third fixed shaft 13 to move upward to the lowest height of the second fixed shaft 10 (that is, the loading and unloading device is retracted to the height of the second fixed shaft, and the height is the distance between the two-way telescopic rod 8);

[0044] The support rod 6 is provided with a fifth fixing plate 20, and the fifth fixing plate 20 and the fourth fixing plate 26 are respectively located on both sides of the fifth gear 24, and the fifth fixing plate 20 is provided with a plurality of fifth meshing teeth 27, and the fifth meshing teeth 27 mesh with the fifth gear 24 to drive the third positioning cylinder 22 to rotate to the third fixed axis 13, the second fixed axis 10, and the first fixed axis 7 on the same inclined plane through the movement of the support rod 6. With this technical solution, the present invention realizes that when the support rod 6 moves, it can not only drive the second positioning cylinder 12 to rotate, but also drive the third positioning cylinder 22 to move synchronously through a series of gear meshing mechanisms, and finally make the third fixed axis 13 rise to the same inclined plane as the second fixed axis 10 and the first fixed axis 7.

[0045] In another technical solution, it also includes:

[0046] The transfer assembly 2 is arranged between a plurality of conveying units (a part of the conveying units are located in front of the transfer assembly 2, and the remaining part is located behind the transfer assembly 2 for receiving the goods conveyed by the transfer assembly 2), the transfer assembly 2 comprises a movable base 202, a first vertical plate 201 and a second vertical plate 210 arranged on the base 202, and two sixth gears 204 arranged on the first vertical plate 201 (the transfer assembly 2 is supported by a movable base 202, the first vertical plate 201 and the second vertical plate 210 are fixed on the base 202, and the first vertical plate 201 and the second vertical plate 210 are connected to each other. 0 parallel, two sixth gears 204 arranged up and down are installed on the first vertical plate 201, which are connected by a chain 205 to form a closed-loop transmission system), the two sixth gears 204 are connected by a chain 205, and a plurality of driving plates 209 are arranged on the chain 205, an annular first slide rail 203 is arranged on the first vertical plate 201 (the sixth gear 204 and the chain 205 are located in the first slide rail 203), and a plurality of first sliders 213 are arranged on the first slide rail 203 (the plurality of first sliders 213 are evenly arranged on the first slide rail 203), and each of the first sliders 21 3 is rotatably provided with a first connecting shaft 207 (the first connecting shaft 207 is perpendicular to the first vertical plate 201), a connecting plate 206 is fixedly provided on the first connecting shaft 207, the connecting plate 206 is parallel to the first vertical plate 201, a second connecting shaft 208 is provided on the connecting plate 206 (the central axis of the first connecting shaft 207 and the second connecting shaft 208 do not coincide), a plurality of driving plates 209 are rotatably connected with the plurality of second connecting shafts 208 in a one-to-one correspondence, a bearing plate is provided on the second connecting shaft 208, a plurality of bearing rods are spaced apart on the bearing plate in the horizontal direction, and the second vertical plate 201 is provided with a plurality of bearing rods. Two fixed blocks are provided on 10, and a plurality of transfer rods are arranged at intervals on the fixed blocks, and a plurality of load-bearing rods can pass through the gaps between the plurality of transfer rods one by one to transfer the goods on the transfer rods (when the chain 205 rotates, the driving plate 209 will drive the load-bearing plate and the goods thereon to move together, and a rotating motor is provided on the first vertical plate 201, and the output shaft of the rotating motor is connected to one of the sixth gears 204, and the rotation direction of the sixth gear 204 is: when the load-bearing rod 212 passes through the transfer rod at a lower position, it moves upward, and when the load-bearing rod passes through the transfer rod at a higher position, it moves downward);

[0047] The fixed block in the front in the direction of cargo transfer is lower than the fixed block in the rear. The fixed block in the lowest position and the corresponding transfer rod are used to receive the cargo transmitted by the multiple conveying units in front of the transfer assembly 2. The multiple transfer rods in the highest position are used to transfer the cargo to the multiple conveying units behind the transfer assembly 2. During use, the cargo is transferred from the conveying unit to the load-bearing rod in the lower position. When a transfer rod passes from below, the transfer rod passes through the load-bearing rod and transfers the cargo on the load-bearing rod to the transfer rod. When the transfer rod moves to the load-bearing rod at a high position and passes through the load-bearing rod, the cargo is transferred to the load-bearing rod at a high position and transferred to the conveying unit, and then transferred to the designated position with the conveying unit. With this technical solution, the present invention realizes the lifting of the cargo by setting the transfer assembly 2, and then slides down along the conveying surface to avoid the cargo from pausing on the conveying unit when the distance is long; and the position of the cargo is raised by setting the sixth gear 204, the chain 205, and the transfer rod.

[0048] In another technical solution, the fixed block located at a high position is tilted downward (the corresponding multiple load-bearing rods form an inclined surface), and the first vertical plate 201 and the second vertical plate 210 (a second guide plate 5 is provided on the first vertical plate 201 and the second vertical plate 210) are provided with a second guide plate 5 for receiving the goods on the transfer rod, and the lower end of the second guide plate 5 is provided near the first fixed shaft 7 located at the end to transfer the goods located at a high position. With this technical solution, the present invention tilts the fixed block to make the goods smoother during the downward slide, reducing the amount of goods stuck on the load-bearing rod; and the second guide plate 5 is provided to ensure that the goods can accurately fall into the conveying unit.

[0049] In another technical solution, the first vertical plate 201 and the second vertical plate 210 are provided with an inclined first guide plate 4 at the position of the lowest fixed block, the lower end of the first guide plate 4 is arranged close to the transfer rod, and the upper end is arranged close to the first fixed shaft 7 at the lower end to transfer the goods of the conveying unit to the transfer rod. With this technical solution, the present invention guides the goods on the conveying unit to the transfer rod by arranging the first guide plate 4, the lower end of the first guide plate 4 is arranged close to the transfer rod, and the upper end is arranged close to the first fixed shaft 7 at the lower end, forming a natural guiding path.

[0050] In another technical solution, an annular baffle 211 is provided on the second vertical plate 210, and the annular baffle 211 is located on the inner side of the chain 205. With this technical solution, the present invention improves the safety of transferring goods by providing the annular baffle 211 to prevent the goods from accidentally falling.

[0051] The number of equipment and processing scales described herein are intended to simplify the description of the invention. Applications, modifications and variations of the present invention for railway cargo handling equipment will be apparent to those skilled in the art.

[0052] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A cargo handling device for railway transportation, characterized in that: include: A lifting platform, which is movable; A plurality of sequentially connected transmission units, wherein the transmission units are arranged on the lifting platform, the transmission units include two pairs of support rods, the two pairs of support rods are connected by two bidirectional telescopic rods, the upper part of each pair of support rods is commonly connected to a first fixed shaft, the first fixed shaft is provided with a plurality of steel first skateboard wheels, two second positioning cylinders with internal threads are rotatably provided on the fixed part of the bidirectional telescopic rod, a matching second threaded rod is provided in the second positioning cylinder, the second threaded rods on the two bidirectional telescopic rods are connected one by one by the second fixed shaft, a plurality of steel second skateboard wheels are arranged at intervals on the second fixed shaft, the support rod moves relative to the second positioning cylinder and can drive the second positioning cylinder to rotate; Among them, any two adjacent transmission units are connected by two connecting rods, and a plurality of connecting rods are hinged with retractable legs. When the bidirectional telescopic rod is contracted to the shortest, the second fixed axis is located below the first fixed axis. When the bidirectional telescopic rod is extended, the second positioning cylinder rotates and drives the second fixed axis to rise until the top ends of the first fixed axis and the second fixed axis are located on the same inclined plane.

2. The cargo handling device for railway transportation according to claim 1, characterized in that: Two second support rods are provided on the fixed part of the bidirectional telescopic rod, and the second support rods are provided with the second positioning cylinders rotatably corresponding to each other, and the second positioning cylinders are coaxially provided with a second gear. A first fixing plate is provided on the support rod, and the first fixing plate and the second positioning cylinders are arranged in a one-to-one correspondence. A plurality of first meshing teeth are provided on the first fixing plate at intervals along the length direction thereof, and the first meshing teeth are meshed with the second gear to drive the second positioning cylinder to rotate through the movement of the support rod.

3. The cargo handling device for railway transportation according to claim 1, characterized in that: The fixed part of the two-way telescopic rod is provided with a support plate, and two rotatable third positioning cylinders are provided on the support plate, and the third positioning cylinder can slide along the telescopic direction of the two-way telescopic rod, and the third positioning cylinder has an internal thread, and a matching third threaded rod is provided in the third positioning cylinder, and a third fixed shaft is provided on the upper part of the corresponding two third threaded rods, and a plurality of steel third skateboard wheels are provided on the third fixed shaft, wherein, when the two-way telescopic rod is contracted to the shortest, the third fixed shaft is located below the second fixed shaft, and when the two-way telescopic rod is extended to the longest, the third positioning cylinder moves and drives the third fixed shaft to rise until the third fixed shaft, the second fixed shaft and the first fixed shaft are located on the same inclined plane.

4. The cargo handling device for railway transportation according to claim 3, characterized in that: A third support rod is rotatably provided at the bottom end of the third positioning cylinder, and the bottom end of the third support rod is slidably connected to the support plate, a third fixing plate is provided on the third support rod, and a plurality of third meshing teeth are provided on the third fixing plate along its length direction, and a third gear is coaxially provided at the lower part of the second positioning cylinder, and the third gear meshes with the third meshing teeth to drive the third positioning cylinder and the support rod to move synchronously through the rotation of the second positioning cylinder; A column is provided on the support plate, a fourth fixing plate is provided on the column, a plurality of fourth meshing teeth are provided on the fourth fixing plate, a fifth gear is coaxially provided on the third positioning cylinder, the fifth gear meshes with the fourth meshing teeth to achieve synchronous movement of the third positioning cylinder and the support rod, and can also drive the third fixed axis to move upward to the lowest height of the second fixed axis; A fifth fixed plate is provided on the support rod, and the fifth fixed plate and the fourth fixed plate are respectively located on both sides of the fifth gear. A plurality of fifth meshing teeth are provided on the fifth fixed plate, and the fifth meshing teeth are meshed with the fifth gear to drive the third positioning cylinder to rotate through the support rod movement until the third fixed axis, the second fixed axis and the first fixed axis are located on the same inclined plane.

5. The cargo handling device for railway transportation according to claim 1, characterized in that: Also includes: A transfer assembly is arranged between a plurality of conveying units, the transfer assembly comprising a movable base, a first vertical plate and a second vertical plate arranged on the base, two sixth gears arranged on the first vertical plate, the two sixth gears are connected by a chain, a plurality of driving plates are arranged on the chain, a first annular first slide rail is arranged on the first vertical plate, a plurality of first sliders are arranged on the first slide rail, a first connecting shaft is rotatably arranged on the first slider, a connecting plate is arranged on the first connecting shaft, a second connecting shaft is arranged on the connecting plate, a plurality of driving plates are rotatably connected with a plurality of second connecting shafts in a one-to-one correspondence, a load-bearing plate is arranged on the second connecting shaft, a plurality of load-bearing rods are arranged on the load-bearing plate at intervals in a horizontal direction, two fixed blocks are arranged on the second vertical plate, a plurality of transfer rods are arranged on the fixed block, and the plurality of load-bearing rods pass through the gaps between the plurality of transfer rods to transfer the goods on the transfer rods; The fixed block located in the front in the direction of cargo transfer is lower than the fixed block located in the rear. The fixed block located at the lowest position and the corresponding transfer rod are used to receive the cargo transported by the multiple conveying units located in front of the transfer component. The multiple transfer rods at the highest position are used to transfer the cargo to the multiple conveying units located behind the transfer component.

6. The cargo handling device for railway transportation according to claim 5, characterized in that: The fixed block located at a high position is tilted downward, and a second guide plate for receiving goods on the transfer rod is provided between the first vertical plate and the second vertical plate, and the lower end of the second guide plate is provided close to the first fixed axis located at the end.

7. The cargo handling device for railway transportation according to claim 6, characterized in that: The first vertical plate and the second vertical plate are provided with an inclined first guide plate at the position of the lowest fixed block. The lower end of the first guide plate is arranged close to the transfer rod, and the high end is arranged close to the first fixed shaft at the lower end to transfer the goods of the conveying unit to the transfer rod.

8. The cargo handling device for railway transportation according to claim 7, characterized in that: The second vertical plate is provided with an annular baffle.

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