Railway freight receiving and unloading device

Abstract

The invention discloses a railway freight receiving and unloading device, which comprises a movable base, a movable base, a movable base, a movable base, a movable base, a movable base and a movable base, and is characterized in that a bracket is arranged on the movable base; the movable box is arranged in the bearing box and can horizontally move along the bearing box, two adjusting plates capable of moving oppositely or oppositely are arranged in the movable box, clamping plates capable of sliding up and down relative to the adjusting plates are arranged on the adjusting plates, and a telescopic plate is jointly connected between the two clamping plates; a plurality of first springs are arranged on the lower surface of a fixed part of the telescopic plate, the lower ends of the first springs are connected with the bottom of the moving box, two gravity plates are arranged on the fixed part of the telescopic plate, and a plurality of meshing teeth are oppositely arranged on the gravity plates at intervals in the vertical direction; and the driving assembly comprises two bidirectional spiral cylindrical cams which are rotationally connected with the moving box. By arranging the adjusting plate, the supporting plate, the telescopic plate and the driving assembly, goods are clamped under the gravity action of the goods, and the stability of receiving and unloading is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway freight loading and unloading equipment, and more specifically, to a railway freight loading and unloading device. 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 social material production process. With the continuous growth of railway freight volume, the shortcomings of traditional cargo loading and unloading devices in terms of efficiency, safety and adaptability have become increasingly prominent. In order to improve the cargo loading and unloading effect, the patent with announcement number "CN219602726U" discloses a railway transportation loading and unloading device, which includes a base, a frame, a mobile box and an installation box. However, the device uses a fixed mobile box, which cannot fix goods of different sizes when loading and unloading goods, affecting the stability of the goods during loading and unloading. Summary of the invention

[0003] An object of the present invention is to provide a railway freight loading and unloading device, which can clamp the goods under the action of the gravity of the goods themselves by setting an adjustment plate, a support plate, a telescopic plate, and a driving component, thereby improving the stability of loading and unloading.

[0004] In order to achieve these purposes and other advantages of the present invention, a railway freight loading and unloading device is provided, comprising: A movable base, on which a bracket is provided, and the bracket is provided with a load-bearing box that can slide up and down relative to the bracket; A moving box, which is arranged in the load-bearing box and can move horizontally along the load-bearing box, wherein two adjusting plates that can move relative to or away from each other are arranged in the moving box, wherein the adjusting plates are provided with clamping plates that can slide up and down relative to the adjusting plates, wherein a telescopic plate is commonly connected between the two clamping plates, wherein a plurality of first springs are arranged on the lower surface of the fixed portion of the telescopic plate, wherein the lower end of the first spring is connected to the bottom of the moving box, wherein two gravity plates are arranged on the fixed portion of the telescopic plate, wherein a plurality of meshing teeth are arranged vertically at intervals on the upper edge of the gravity plates; A driving assembly, which includes two bidirectional spiral cylindrical cams rotatably connected to the moving box, two sliding blocks are provided on the cylindrical cam, the sliding blocks on the two cylindrical cams are arranged in a one-to-one correspondence, and a support plate is commonly connected between the two corresponding sliding blocks, the two support plates are arranged in a one-to-one correspondence with the two adjustment plates, the support plates are slidably connected to the adjustment plates to adjust the distance between the support plates and the adjustment plates, a first gear is provided in the middle of the cylindrical cam, the two first gears are respectively engaged with the meshing teeth on the two gravity plates to drive the first gear to rotate by moving the telescopic plate downward, and the rotation of the first gear drives the sliding block to move horizontally along the cylindrical cam.

[0005] Preferably, the adjustment plate is provided with a plurality of rotatable threaded rods, the support plate is provided with a plurality of threaded holes at intervals and the threaded holes match the threaded rods, the side wall of the movable box is provided with a plurality of through holes at intervals, the diameter of the through holes is larger than the diameter of the threaded rods, and the plurality of threaded rods pass through the plurality of threaded holes and the plurality of through holes in sequence in a one-to-one correspondence so as to adjust the distance between the support plate and the adjustment plate by rotating the threaded rods.

[0006] Preferably, a driving rod is provided at the end of the threaded rod, and the vertical cross-section of the driving rod is a triangle; The driving rod is sleeved with a driving cylinder matched with it, the driving cylinder is rotatably connected to the side wall of the moving box, the driving cylinder is circumferentially provided with a second gear, and a plurality of second gears are connected by a chain; Two driving wheels are arranged on the side wall of the moving box, and the two driving wheels are connected to the two chains in a one-to-one correspondence, so as to drive the plurality of second gears to rotate through the chains.

[0007] Preferably, the side walls of the clamping plate are recessed to form a clamping groove, the notches of the clamping grooves on the two clamping plates are arranged opposite to each other, a plurality of second springs are provided at the bottom of the clamping groove, the ends of the plurality of second springs are commonly connected to a clamping block, the clamping block is slidably connected to the clamping groove, the surface of the clamping block located outside the clamping groove is parallel to the clamping plate, the surface located in the clamping groove is an inclined surface, and the distance between the inclined surface of the clamping block and the bottom of the clamping groove decreases from top to bottom, wherein a driving block that can slide up and down is provided in the clamping groove, and a push-pull rod is provided on the driving block, the push-pull rod is vertically arranged and the upper end of the push-pull rod slides through the top end of the clamping plate, when loading is required, the push-pull rod is moved downward, and the push-pull rod drives the driving block to move to the lower end of the clamping groove, so that the driving block abuts against the clamping block, and when unloading is required, the push-pull rod is moved upward until the clamping block can move toward the bottom of the clamping groove.

[0008] Preferably, the push-pull rod is rotatably connected to the driving block, and the horizontal cross-section of the push-pull rod is a triangle; A rotatable support block is provided at the top of the clamping groove, a through hole with a triangular horizontal cross section is provided through the support block and the through hole is adapted to the push-pull rod, and the push-pull rod passes through the through hole and extends out of the clamping plate; Wherein, the support block is in the shape of an elongated strip, and both ends of the support block are arc-shaped. When loading is required, the push-pull rod is rotated until the arc-shaped edge of the support block abuts against the clamping block. When unloading is required, the push-pull rod is rotated until the support block is separated from the clamping block.

[0009] Preferably, a plurality of support rods are provided at intervals at the bottom end of the adjustment plate, a first slider is provided at the bottom end of the support rod, a plurality of first slide rails are provided at the bottom of the movable box, and the plurality of first slide rails are slidably connected with the plurality of first sliders in a one-to-one correspondence to enable the two adjustment plates to move relative to or away from each other.

[0010] Preferably, two sliding rods are provided at the top of the adjusting plate, and two sliding holes are correspondingly provided on the clamping plate. The two sliding rods are slidably connected with the two sliding holes in a one-to-one correspondence so that the clamping plate can move up and down relative to the adjusting plate.

[0011] Preferably, a second slide rail is vertically provided in the slide hole, a second slide block is provided on the second slide rail, and the second slide block is connected to the slide rod.

[0012] Preferably, a plurality of fixed cylinders are provided at the bottom of the movable box, a plurality of first springs are arranged in the plurality of fixed cylinders in a one-to-one correspondence, a fixed rod is provided at the end of the first spring, the fixed rod is slidably connected to the fixed cylinder, and the top end of the fixed rod is connected to the fixed part of the telescopic plate.

[0013] Preferably, a plurality of positioning cylinders are provided at the bottom of the clamping groove, a plurality of second springs are arranged in the plurality of positioning cylinders in a one-to-one correspondence, a positioning rod is provided at the end of the second spring, the positioning rod is slidably connected to the positioning cylinder, and the end of the positioning rod is connected to the clamping block.

[0014] The present invention has at least the following beneficial effects: First, the present invention realizes clamping of cargo under the action of the cargo's own gravity by setting an adjustment plate, a support plate, a telescopic plate, and a driving assembly, thereby improving the stability of loading and unloading; through the up and down sliding of the load-bearing box and the horizontal movement of the mobile box, the railway freight loading and unloading device of the present invention can flexibly adapt to work requirements of different heights and positions, greatly broadening the scope of application; the cylindrical cam and the gravity plate meshing design realizes the function of automatically adjusting the spacing between the adjustment plates, which can quickly adapt to cargo of different sizes, while ensuring stability and safety during the clamping process, and reducing the risk of cargo damage due to improper operation.

[0015] Second, the present invention sets a clamping block, a push-pull rod and a driving block. On the one hand, the driving block is moved downward until the driving block abuts against the clamping block. This setting realizes the fixation of the clamping block. On the other hand, when unloading, the push-pull rod is pulled upward to drive the driving block to move upward. At this time, under the action of the second spring, the clamping block moves toward the bottom of the clamping groove to separate the goods from the clamping block. This setting facilitates the unloading of goods from the mobile box and is relatively simple to operate.

[0016] Third, the present invention provides a rotatable threaded rod and a threaded hole, which can not only adjust the distance between the support plate and the adjustment plate by rotating the threaded rod, but also realize relative movement of the two adjustment plates under the action of the sliding block to fix the goods; the present invention provides a push-pull rod and a support block with a triangular cross-section, on the one hand, by rotating the support block to abut against the clamping block, the upper part of the clamping block is fixed to avoid tilting of the clamping block and improve the stability of clamping the goods; on the other hand, by rotating the support block to separate the clamping block, the clamping block is driven to move toward the bottom of the clamping groove under the action of the second spring, which is convenient for unloading.

[0017] 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

[0018] Figure 1 This is a schematic structural diagram of a railway freight loading and unloading device according to one of the technical solutions described in the present invention; Figure 2 A top view of a railway freight loading and unloading device according to one of the technical solutions of the present invention; Figure 3 A schematic diagram of the structure of a support block according to one of the technical solutions of the present invention; Figure 4 This is a schematic structural diagram of a fixing cylinder described in one of the technical solutions of the present invention. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-4 As shown, the present invention provides a railway freight loading and unloading device, comprising: A movable base 1 (the movable mode adopts the existing design), on which a bracket 2 is provided, and a load-bearing box 4 is provided on the bracket 2 which can slide up and down relative to the bracket 2 to meet the operation requirements at different heights; A moving box 5, which is arranged in the load-bearing box 4 and can move horizontally along the load-bearing box 4, and two adjusting plates 11 that can move relative to or away from each other are arranged in the moving box 5 (that is, the spacing between the two adjusting plates 11 is adjustable, and the moving direction of the adjusting plates 11 is perpendicular to the moving direction of the moving box), and a clamping plate 7 that can slide up and down relative to the adjusting plate 11 is arranged on the adjusting plate 11, and a telescopic plate 6 is commonly connected between the two clamping plates 7, and a plurality of first springs 28 are arranged on the lower surface of the fixed part of the telescopic plate 6, and the lower end of the first spring 28 is connected to the bottom of the moving box 5, wherein two gravity plates 19 are arranged on the fixed part of the telescopic plate 6, and a plurality of meshing teeth 20 are arranged at vertical intervals on the upper edge of the gravity plate 19; A driving assembly, which includes two bidirectional spiral cylindrical cams 10 (the cylindrical cams are horizontally arranged) rotatably connected to the moving box 5, two sliding blocks 12 are arranged on the cylindrical cams 10, the sliding blocks 12 on the two cylindrical cams 10 are arranged one-to-one, and a support plate 8 is commonly connected between the two corresponding sliding blocks 12, the two support plates 8 are arranged one-to-one with two adjustment plates 11, the support plates 8 (the support plates 8 are horizontally arranged) are slidably connected with the adjustment plates 11 (the adjustment plates 11 are vertically arranged) to adjust the distance between the support plates 8 and the adjustment plates 11, a first gear 9 is provided in the middle of the cylindrical cam 10, the two first gears 9 are respectively meshed with the meshing teeth 20 on the two gravity plates 19 to drive the first gear 9 to rotate by moving downward through the telescopic plate 6, and the rotation of the first gear 9 drives the sliding block 12 to move horizontally along the cylindrical cam 10.

[0021] In this technical solution, the bracket 2 is provided with two third slide rails, the third slide rail is provided with a third slider, the two third sliders are commonly connected with a connecting plate 3, the connecting plate 3 is connected to the load-bearing box 4, the vertical section of the load-bearing box 4 is U-shaped for easy loading and unloading of goods, the bracket 2 is provided with a first telescopic motor, the first telescopic motor is connected to the connecting plate 3 to drive the connecting plate 3 to move up and down; the bottom of the load-bearing box 4 is provided with two slide grooves, the bottom of the moving box 5 is provided with two rows of moving wheels 27, the two rows of moving wheels 27 can move in the two slide grooves correspondingly; the bracket 2 is provided with two second telescopic motors, the output shaft ends of the two second telescopic motors are connected to the moving box 5 to drive the moving box 5 to move, the shape of the moving box 5 is the same as the load-bearing box 4 and the size of the moving box 5 is smaller than the load-bearing box 4 so that the moving box 5 can enter the load-bearing box 4; the adjustment plate 11 is vertically arranged and parallel to the side wall of the moving box 5; the telescopic plate 6 includes a fixed part and a telescopic part slidably arranged in the fixed part; the telescopic plate 6 telescopes in the horizontal direction, the first spring 28 telescopes in the vertical direction, and the gravity plate 19 is arranged vertically; the barrel cam 10 is a horizontally arranged cylinder 102, and the two ends of the cylinder 102 can be rotatably connected with the moving box 5 through bearings. A spiral groove curve 101 is provided on the cylinder 102 to drive the sliding block 12 to move, and the groove curves 101 on both sides of the first gear 9 rotate in opposite directions to achieve that the two sliding blocks 12 can move relative to or away from each other; the support plate 8 is arranged horizontally; when the telescopic plate 6 compresses the first spring 28 due to the decrease in load, the gravity plate 19 decreases accordingly, driving the first gear 9 to rotate, and then driving the sliding block 12 to move horizontally along the surface of the barrel cam 10, so as to realize the function of automatically adjusting the spacing of the adjustment plates 11; the sliding block 12 is connected with a connecting block 31, and the connecting block 31 is connected to the support plate 8.

[0022] During use, when loading, first adjust the height of the load-bearing box 4 on the bracket 2 according to the work requirements, so that the bottom of the slide groove on the load-bearing box 4 is flush with the work surface (to facilitate the sliding of the mobile box 5), and then move the mobile box 5 to the work point, first adjust the distance between the two adjustment plates 11 based on the size of the goods to make the distance between the two clamping plates 7 slightly larger than the size of the goods to facilitate loading the goods into the mobile box 5, place the goods in the mobile box 5, and as the gravity of the goods causes the telescopic plate 6 to compress the first spring 28, the gravity plate 19 drops accordingly The meshing teeth 20 thereon mesh with the first gear 9 on the barrel cam 10. The barrel cam 10 rotates due to the rotation of the first gear 9, driving the two sliding blocks 12 to move relative to each other in the horizontal direction, thereby causing the two clamping plates 7 to clamp the goods, move the mobile box 5 into the load-bearing box 4, and transfer it to the position where unloading is required; when unloading, the goods are moved upward until the goods are separated from the telescopic plate 6, the first spring 28 drives the telescopic plate 6 to move upward, the gravity plate 19 moves upward and drives the first gear 9 to rotate in the opposite direction, and the two sliding blocks 12 move in opposite directions.

[0023] By adopting this technical solution, the present invention realizes clamping of the cargo under the action of the cargo's own gravity by setting an adjustment plate 11, a support plate 8, a telescopic plate 6, and a driving assembly, thereby improving the stability of loading and unloading; through the up and down sliding of the load-bearing box 4 and the horizontal movement of the movable box 5, the railway freight loading and unloading device of the present invention can flexibly adapt to the working requirements of different heights and positions, greatly broadening the scope of application; the engagement design of the cylindrical cam 10 and the gravity plate 19 realizes the function of automatically adjusting the spacing of the adjustment plate 11, which can quickly adapt to clamping cargo of different sizes, while ensuring stability and safety during the clamping process, and reducing the risk of cargo damage due to improper operation.

[0024] In another technical solution, the adjustment plate 11 is provided with a plurality of rotatable threaded rods 13 (the adjustment plate 11 is correspondingly provided with a plurality of annular fourth slide rails, the fourth slide rail is provided with a pair of fourth sliders, and the plurality of pairs of fourth sliders are connected to the plurality of support rods one-to-one), the threaded rods 13 are arranged horizontally, the support plate 8 is provided with a plurality of threaded holes at intervals (the threaded holes are arranged horizontally) and the threaded holes match the threaded rods 13, the side walls of the movable box 5 are provided with a plurality of through holes at intervals, the diameter of the through holes is slightly larger than the diameter of the threaded rods 13 (so that the threaded rods 13 can move along the through holes), the plurality of threaded rods 13 pass through the plurality of threaded holes and the plurality of through holes in sequence one-to-one so as to adjust the distance between the support plate 8 and the adjustment plate 11 by rotating the threaded rods 13, one threaded rod 13 passes through one threaded hole and one through hole, and the operator first estimates the distance between the two adjustment plates 11 according to the size of the goods to be unloaded, and adjusts it by rotating the threaded rods 13. By adopting this technical solution, the present invention can not only adjust the distance between the support plate 8 and the adjustment plate 11 by rotating the threaded rod 13 by setting a rotatable threaded rod 13 and a threaded hole, but also can realize the relative movement of the two adjustment plates 11 under the action of the sliding block 12 to fix the goods.

[0025] In another technical solution, a driving rod 21 is provided at the end of the threaded rod 13, and the vertical cross-section of the driving rod 21 is a triangle; The driving rod 21 is sleeved with a driving cylinder 22 adapted thereto, and the driving cylinder 22 is rotatably connected to the side wall of the moving box 5 (the moving box 5 is provided with an annular fifth slide rail in the circumference of the through-hole, and the fifth slide rail is provided with a fifth slider, and the fifth slider is connected to the driving cylinder 22), and the driving cylinder 22 is provided with a second gear 23 in the circumference, and a plurality of second gears 23 are connected by a chain; Two driving wheels (driving wheels are gears) are provided on the side wall of the moving box 5, and the two driving wheels are connected to two chains one by one, so as to drive the plurality of second gears 23 to rotate through the chains. With this technical solution, the present invention provides a driving rod 21 with a triangular cross section, a driving cylinder 22 and a second gear 23 adapted to the driving rod 21, and this arrangement can not only realize driving the driving rod 21 to rotate and then drive the threaded rod 13 to rotate, but also the threaded rod 13 can move in the horizontal direction.

[0026] In another technical solution, the side wall of the clamping plate 7 is recessed to form a clamping groove 14, and the notches of the clamping grooves 14 on the two clamping plates 7 are arranged opposite to each other, and the bottom of the clamping groove 14 (the position corresponding to the notch is the bottom of the groove) is provided with a plurality of second springs (the second springs extend and retract in the horizontal direction), and the ends of the plurality of second springs are commonly connected to a clamping block 17, and the clamping block 17 is slidably connected to the clamping groove 14 (the top and the bottom end of the clamping groove 14 are each provided with an eighth slide rail, and the eighth slide rail is provided with an eighth slider, and the eighth slider is connected to the clamping block 17), and the surface of the clamping block 17 located outside the clamping groove 14 is parallel to the clamping plate 7, and the surface located inside the clamping groove 14 is an inclined surface (the inclined surface includes a vertical portion located at the lower part and an inclined portion integrally formed with the vertical portion, and the height of the vertical portion is slightly larger than the driving The height of the block 16 is increased to improve the stability of the driving block 16), and the distance between the inclined surface (inclined portion) of the clamping block 17 and the bottom of the clamping groove 14 decreases from top to bottom, wherein a driving block 16 that can slide up and down is provided in the clamping groove 14, and a push-pull rod 15 is provided on the driving block 16, the push-pull rod 15 is vertically arranged and the upper end of the push-pull rod 15 slides through the top of the clamping plate 7, when loading is required, the push-pull rod 15 is moved downward, and the push-pull rod 15 drives the driving block 16 to move to the lower end (vertical portion) of the clamping groove 14, so that the driving block 16 is in contact with the clamping block 17 (contact, at this time the distance between the two clamping blocks 17 is slightly larger than the size of the goods), and when unloading is required, the push-pull rod 15 is moved upward until the clamping block 17 can move toward the bottom of the clamping groove 14. By adopting this technical solution, the present invention sets a clamping block 17, a push-pull rod 15, and a driving block 16. On the one hand, the driving block 16 is moved downward until it abuts against the clamping block 17. This setting realizes the fixation of the clamping block 17. On the other hand, when unloading, the push-pull rod 15 is pulled upward to drive the driving block 16 to move upward. At this time, under the action of the second spring, the clamping block 17 moves toward the bottom of the clamping groove 14 to separate the goods from the clamping block 17. This setting facilitates the unloading of goods from the moving box 5 and is relatively simple to operate.

[0027] In another technical solution, the push-pull rod 15 is rotationally connected to the driving block 16 (one implementation of the rotational connection is: an annular seventh slide rail is provided on the driving block 16, a pair of seventh slide blocks are provided on the seventh slide rail, and the seventh slide block is connected to the push-pull rod 15), and the horizontal cross-section of the push-pull rod 15 is a triangle; The top end (top end is located at the top) of the clamping groove 14 is provided with a rotatable support block 18, the support block 18 is penetrated by a through hole 24 with a triangular horizontal cross section and the through hole 24 is adapted to the push-pull rod 15, the push-pull rod 15 passes through the through hole 24 and extends out of the clamping plate 7, so that the support block 18 is driven to rotate by rotating the push-pull rod 15, and the second spring, the push-pull rod 15, the support block 18, and the driving block 16 do not interfere with each other in space; Among them, the support block 18 is in the shape of a long strip, and the two ends of the support block 18 are arc-shaped. When loading is required, the push-pull rod 15 is rotated until the arc-shaped edge of the support block 18 abuts against the clamping block 17 (when in use, the push-pull rod 15 can first push the drive block 16 to the lowest position, and then the support block 18 is rotated until the support block 18 abuts against the clamping block 17). When unloading is required, the push-pull rod 15 is rotated until the support block 18 is separated from the clamping block 17 (when in use, the support block 18 can be rotated first until the clamping block 17 is separated, and then the drive block 16 is moved upward). By adopting this technical solution, the present invention sets a push-pull rod 15 and a support block 18 with a triangular cross-section. On the one hand, by rotating the support block 18 to abut against the clamping block 17, the upper part of the clamping block 17 is fixed to prevent the clamping block 17 from tilting and improve the stability of cargo clamping. On the other hand, by rotating the support block 18 to separate from the clamping block 17, the clamping block 17 is driven to move toward the bottom of the clamping groove 14 under the action of the second spring, thereby facilitating unloading.

[0028] In another technical solution, a plurality of support rods are provided at intervals at the bottom of the adjustment plate 11, a first slider is provided at the bottom of the support rod, a plurality of first slide rails are provided at the bottom of the moving box 5, and the plurality of first slide rails are slidably connected with the plurality of first slide rails in a one-to-one correspondence to realize that the two adjustment plates 11 can move relative to or away from each other. With this technical solution, the two adjustment plates 11 can move relative to or away from each other.

[0029] In another technical solution, two slide bars are provided at the top of the adjusting plate 11, and two slide holes are correspondingly provided on the clamping plate 7. The two slide bars are slidably connected with the two slide holes in a one-to-one correspondence so that the clamping plate 7 can move up and down relative to the adjusting plate 11. With this technical solution, the clamping plate 7 can move up and down relative to the adjusting plate 11.

[0030] In another technical solution, a second slide rail is vertically arranged in the slide hole, a second slide block is arranged on the second slide rail, and the second slide block is connected to the slide rod. By adopting this technical solution, the slide rod and the slide hole are slidably connected.

[0031] In another technical solution, a plurality of fixed cylinders 25 (fixed cylinders 25 are arranged vertically) are provided at the bottom of the moving box 5, a plurality of first springs 28 are arranged in the plurality of fixed cylinders 25 in a one-to-one correspondence, a fixing rod 26 is provided at the end of the first spring 28, the fixing rod 26 is slidably connected to the fixing cylinder 25, and the top end of the fixing rod 26 is connected to the fixing part of the telescopic plate 6. This technical solution is adopted to protect the first springs 28 and is more conducive to the up and down movement of the telescopic plate 6.

[0032] In another technical solution, a plurality of positioning cylinders (positioning cylinders are arranged horizontally) are provided at the bottom of the clamping groove 14, a plurality of second springs are arranged in the plurality of positioning cylinders in a one-to-one correspondence, a positioning rod is provided at the end of the second spring, the positioning rod is slidably connected to the positioning cylinder, and the end of the positioning rod is connected to the clamping block. By adopting this technical solution, the protection of the second spring is achieved.

[0033] The number of equipment and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the railway freight loading and unloading device of the present invention will be obvious to those skilled in the art.

[0034] 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. Railway freight loading and unloading device, characterized in that: include: A movable base, on which a bracket is provided, and the bracket is provided with a load-bearing box that can slide up and down relative to the bracket; A moving box, which is arranged in the load-bearing box and can move horizontally along the load-bearing box, wherein two adjusting plates that can move relative to or away from each other are arranged in the moving box, wherein the adjusting plates are provided with clamping plates that can slide up and down relative to the adjusting plates, wherein a telescopic plate is commonly connected between the two clamping plates, wherein a plurality of first springs are arranged on the lower surface of the fixed portion of the telescopic plate, wherein the lower end of the first spring is connected to the bottom of the moving box, wherein two gravity plates are arranged on the fixed portion of the telescopic plate, wherein a plurality of meshing teeth are arranged vertically at intervals on the upper edge of the gravity plates; A driving assembly, which includes two bidirectional spiral cylindrical cams rotatably connected to the moving box, two sliding blocks are provided on the cylindrical cam, the sliding blocks on the two cylindrical cams are arranged in a one-to-one correspondence, and a support plate is commonly connected between the two corresponding sliding blocks, the two support plates are arranged in a one-to-one correspondence with the two adjustment plates, the support plates are slidably connected to the adjustment plates to adjust the distance between the support plates and the adjustment plates, a first gear is provided in the middle of the cylindrical cam, the two first gears are respectively engaged with the meshing teeth on the two gravity plates to drive the first gear to rotate by moving the telescopic plate downward, and the rotation of the first gear drives the sliding block to move horizontally along the cylindrical cam.

2. The railway freight loading and unloading device according to claim 1, characterized in that: The adjustment plate is provided with a plurality of rotatable threaded rods, the support plate is provided with a plurality of threaded holes at intervals and the threaded holes match the threaded rods, the side wall of the moving box is provided with a plurality of through holes at intervals, the diameter of the through holes is larger than the diameter of the threaded rods, and the plurality of threaded rods pass through the plurality of threaded holes and the plurality of through holes in sequence in a one-to-one correspondence so as to adjust the distance between the support plate and the adjustment plate by rotating the threaded rods.

3. The railway freight loading and unloading device according to claim 2, characterized in that: A driving rod is provided at the end of the threaded rod, and the vertical cross section of the driving rod is a triangle; The driving rod is sleeved with a driving cylinder matched with it, the driving cylinder is rotatably connected to the side wall of the moving box, the driving cylinder is circumferentially provided with a second gear, and a plurality of second gears are connected by a chain; Two driving wheels are arranged on the side wall of the moving box, and the two driving wheels are connected to the two chains in a one-to-one correspondence, so as to drive the plurality of second gears to rotate through the chains.

4. The railway freight loading and unloading device according to claim 1, characterized in that: The side walls of the clamping plate are recessed to form a clamping groove, the notches of the clamping grooves on the two clamping plates are arranged opposite to each other, a plurality of second springs are arranged at the bottom of the clamping groove, and the ends of the plurality of second springs are commonly connected to a clamping block, the clamping block is slidably connected to the clamping groove, the surface of the clamping block located outside the clamping groove is parallel to the clamping plate, the surface located in the clamping groove is an inclined surface, and the distance between the inclined surface of the clamping block and the bottom of the clamping groove decreases from top to bottom, wherein a driving block that can slide up and down is provided in the clamping groove, and a push-pull rod is provided on the driving block, the push-pull rod is vertically arranged and the upper end of the push-pull rod slides through the top end of the clamping plate, when loading is required, the push-pull rod is moved downward, and the push-pull rod drives the driving block to move to the lower end of the clamping groove, so that the driving block abuts against the clamping block, and when unloading is required, the push-pull rod is moved upward until the clamping block can move toward the bottom of the clamping groove.

5. The railway freight loading and unloading device according to claim 4, characterized in that: The push-pull rod is rotatably connected to the driving block, and the horizontal cross-section of the push-pull rod is a triangle; A rotatable support block is provided at the top of the clamping groove, a through hole with a triangular horizontal cross section is provided through the support block and the through hole is adapted to the push-pull rod, and the push-pull rod passes through the through hole and extends out of the clamping plate; Wherein, the support block is in the shape of an elongated strip, and both ends of the support block are arc-shaped. When loading is required, the push-pull rod is rotated until the arc-shaped edge of the support block abuts against the clamping block. When unloading is required, the push-pull rod is rotated until the support block is separated from the clamping block.

6. The railway freight loading and unloading device according to claim 5, characterized in that: A plurality of support rods are arranged at intervals at the bottom end of the adjustment plate, a first slider is arranged at the bottom end of the support rod, a plurality of first slide rails are arranged at the bottom of the movable box, and the plurality of first slide rails are slidably connected with the plurality of first sliders in a one-to-one correspondence so that the two adjustment plates can move relative to or away from each other.

7. The railway freight loading and unloading device according to claim 6, characterized in that: The top of the adjusting plate is provided with two sliding rods, and the clamping plate is correspondingly provided with two sliding holes. The two sliding rods are slidably connected with the two sliding holes in a one-to-one correspondence to realize that the clamping plate can move up and down relative to the adjusting plate.

8. The railway freight loading and unloading device according to claim 7, characterized in that: A second slide rail is vertically arranged in the slide hole, a second slide block is arranged on the second slide rail, and the second slide block is connected to the slide rod.

9. The railway freight loading and unloading device according to claim 1, characterized in that: A plurality of fixed cylinders are provided at the bottom of the moving box, a plurality of first springs are arranged in the plurality of fixed cylinders in a one-to-one correspondence, a fixed rod is provided at the end of the first spring, the fixed rod is slidably connected to the fixed cylinder, and the top end of the fixed rod is connected to the fixed part of the telescopic plate.

10. The railway freight loading and unloading device according to claim 7, characterized in that: A plurality of positioning cylinders are provided at the bottom of the clamping groove, a plurality of second springs are arranged in the plurality of positioning cylinders in a one-to-one correspondence, a positioning rod is provided at the end of the second spring, the positioning rod is slidably connected to the positioning cylinder, and the end of the positioning rod is connected to the clamping block.

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