A telescopic unloading and transportation platform

Abstract

The present invention discloses a telescopic unloading platform, which includes a gantry suspension. At the inner bottom end of the gantry suspension, there is a fixed platform. At the top of the fixed platform, there are guiding protrusions. At the top of the guiding protrusions, there are two sliding guide rails. An external thread is provided on the outer peripheral wall of one of the sliding guide rails. The upper ends of the two sliding guide rails are jointly and slidably provided with a bearing plate, and a sliding groove is opened at the upper end of the bearing plate. The present invention relates to the field of loading and unloading transportation platforms. For this telescopic unloading platform, by controlling the motor to drive the adjusting gear to rotate, the adjusting gear can drive the two side support plates to move in opposite directions. During the process of the two side support plates intersecting with each other, the cargo box supported on the upper ends of the two pallets can automatically slide at an angle, so that the cargo box can be adjusted in angle following the intersection of the side support plates, facilitating the adjustment of the angle of the cargo box and aligning the cargo box with the flatbed truck, achieving the purpose of improving the safety and convenience when loading goods.

Description

Technical Field

[0001] The present invention relates to the field of loading and unloading transportation platforms, and more specifically, to a telescopic unloading transportation platform. Background Art

[0002] In the modern logistics and warehousing industries, the loading and unloading operation is an essential part of the goods transportation process. The connection between traditional loading and unloading platforms and trucks usually relies on manual operation, which is not only inefficient but also poses safety hazards. With the development of automation technology, various automated loading and unloading devices have emerged in the market to improve the loading and unloading efficiency and safety;

[0003] In the prior art, most of the devices for loading and unloading goods use a hydraulic boarding bridge in cooperation with a forklift to load and unload goods. However, since the forklift has a certain self-weight and needs to carry heavy goods for handling, when the forklift moves on the upper end of the hydraulic boarding bridge, it is very easy to change the center of gravity of the hydraulic boarding bridge itself, and thus it is easy to cause the hydraulic boarding bridge to tip over or even be damaged;

[0004] And in the prior art, when loading goods with a forklift, due to the small space inside the van body, it is difficult to provide a good movement area for the forklift, so it is very easy to have problems with misalignment of the goods.

[0005] Therefore, those skilled in the art have provided a telescopic unloading transportation platform to solve the problems raised in the above background art. Summary of the Invention

[0006] The purpose of the present invention is to provide a telescopic unloading transportation platform to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The above technical object of the present invention is achieved through the following technical solutions:

[0009] A telescopic unloading transportation platform includes a gantry suspension. A fixed platform is provided at the inner bottom end of the gantry suspension. A guiding protrusion is provided at the top end of the fixed platform. Two sliding guide rails are provided at the top end of the guiding protrusion. An external thread is provided on the outer peripheral wall of one of the sliding guide rails. A bearing plate is slidably provided at the upper ends of the two sliding guide rails. A sliding groove is provided at the upper end of the bearing plate;

[0010] On both sides of the sliding groove, there are side support plates. On the bottom wall of the sliding groove, there are guiding slide rails. Inside the guiding slide rails, there are guiding blocks. At the upper end of the guiding blocks, there are fixed mounting plates. At the upper end of the mounting plates, there are rotatably arranged adjusting gears. On the side wall of the side support plate facing the adjusting gear, there is a transmission groove. Inside the transmission groove, there is fixedly installed a transmission rack meshing with the adjusting gear. On the side wall of the mounting plate, there is a driving structure, and at the top of the side support plate, there is an angle adjusting structure.

[0011] Further, inside the guiding protrusion, there is a slidably arranged communication bracket. At both ends of the communication bracket, there are hole rings. The two ends of the sliding guide rail respectively correspond to the hole rings on both sides, and inside the hole rings, there are fixed terminals threadedly connected with the sliding guide rail.

[0012] Further, the driving structure includes a connecting frame. The connecting frame is fixedly connected to the end wall of the mounting plate. Inside the connecting frame, there is a driving gear. The driving gear meshes with the adjusting gear, and inside the adjusting gear, there is a control motor.

[0013] Further, inside the guiding slide rail, there is an adjusting screw. The adjusting screw penetrates through the guiding block and is in threaded cooperation with the guiding block. At both ends of the adjusting screw, there are frames fixedly connected to the inner end wall of the guiding slide rail. At one end of the adjusting screw, there is an adjusting motor.

[0014] Further, at the position of the bottom end of the bearing plate opposite to the sliding guide rail, there is a linkage groove, and on the groove wall of the linkage groove, there is an internal thread groove matching with the external thread.

[0015] Further, the angle adjusting structure includes a positioning guide rail. The positioning guide rail is opened at the upper end of the side support plate. Inside the positioning guide rail, there is an adjusting slider. At the top end of the adjusting slider, there is a rotating shaft. At the upper end of the rotating shaft, there is a rotatably arranged tray. At the top end of the tray, there is a transmission structure.

[0016] Further, the transmission structure includes a sliding plate. The sliding plate is slidably arranged at the top end of the tray. At the bottom end of the sliding plate, there is a transmission guide rail inserted into the tray, and at the bottom end of the transmission guide rail, there is a return spring fixedly connected to the tray. At the upper end of the sliding plate, there is a mounting bracket. At the top end of the mounting bracket, there is an electric conveyor belt. Inside the electric conveyor belt, there is a support framework.

[0017] Further, at the bottom end of the gantry suspension, there is an electric extension plate, and at the end of the electric extension plate, there is a support foot.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. The retractable unloading and transportation platform drives the adjusting gear to rotate by controlling the motor, enabling the adjusting gear to drive two side support plates to move in opposite directions. During the process of the two side support plates intersecting, the cargo box supported on the upper ends of the two trays can automatically slide at an angle, enabling the cargo box to adjust its angle following the intersection of the side support plates, so as to adjust the angle of the cargo box and align the cargo box with the flatbed truck, achieving the purpose of improving the safety and convenience when loading goods;

[0020] 2. The retractable unloading and transportation platform is provided with a connecting bracket and a hole ring for installing a sliding guide rail, and a fixed terminal for locking the sliding guide rail, enabling the sliding guide rail to be rotatably connected to the hole ring. One end of the sliding guide rail with an external thread is provided with a driving motor. During use, the driving motor controls the rotation of the sliding guide rail with an external thread to control the sliding of the bearing plate. The bottom end of the connecting bracket is provided with a hydraulic lifting platform for controlling the height of the bearing plate, enabling the bearing plate to extend into the interior of the flatbed truck;

[0021] 3. After the bearing plate and the side support plates both extend, the drive motor is used to push the adjusting slider to move to one end of the positioning guide rail and correspond to the extending direction of the side support plate. At this time, the cargo box is placed on the tops of the two trays by a forklift, and then through the reverse movement of the bearing plate, the side support plates and the adjusting slider, the goods are extended into the interior of the freight car, facilitating loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of a retractable unloading and transportation platform of the present invention;

[0024] Figure 2 is a schematic structural diagram of the bearing plate of the retractable unloading and transportation platform of the present invention after extension;

[0025] Figure 3 is a schematic structural diagram of the gantry suspension of the retractable unloading and transportation platform of the present invention;

[0026] Figure 4 is a schematic structural diagram of the bearing plate of the retractable unloading and transportation platform of the present invention;

[0027] Figure 5It is a schematic structural diagram of the driving structure of a retractable unloading and transportation platform of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the staggered structure of the two side support plates of a retractable unloading and transportation platform of the present invention;

[0029] Figure 7 It is a cross-sectional view of the bearing plate of a retractable unloading and transportation platform of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the transmission structure of a retractable unloading and transportation platform of the present invention.

[0031] In the figure, 1. gantry suspension; 2. fixed platform; 3. guiding projection; 4. sliding guide rail; 5. external thread; 6. bearing plate; 7. sliding groove; 8. side support plate; 9. guiding slide rail; 10. guiding block; 11. mounting plate; 12. adjusting gear; 13. transmission groove; 14. transmission rack; 15. driving structure; 151. connecting frame; 152. driving gear; 16. connecting support; 17. hole ring; 18. fixed terminal; 19. adjusting screw; 20. adjusting motor; 21. linkage groove; 22. internal thread groove; 23. positioning guide rail; 24. adjusting slider; 25. rotating shaft; 26. tray; 27. positioning outer frame; 28. inserting guide rail; 29. lifting sliding groove; 30. electric extension plate; 31. transmission structure; 32. sliding plate; 33. transmission guide rail; 34. mounting bracket; 35. electric transmission belt; 36. support skeleton. Detailed implementation manners

[0032] Next, in combination with the attached drawings and specific implementation manners, the invention will be further described: Embodiment

[0033] Refer to Figure 1 - Figure 8 This retractable unloading and transportation platform disclosed by the present invention includes a gantry suspension 1. At the inner bottom end of the gantry suspension 1, there is a fixed platform 2. At the top end of the fixed platform 2, there is a guiding projection 3. At the top end of the guiding projection 3, there are two sliding guide rails 4. On the outer peripheral wall of one of the sliding guide rails 4, there is an external thread 5. The upper ends of the two sliding guide rails 4 are jointly and slidably provided with a bearing plate 6. On the upper end of the bearing plate 6, there is a sliding groove 7;

[0034] On both sides of the sliding groove 7, there are side support plates 8. On the bottom wall of the sliding groove 7, a guiding slide rail 9 is provided. Inside the guiding slide rail 9, a guiding block 10 is arranged. At the upper end of the guiding block 10, a mounting plate 11 is fixedly arranged. At the upper end of the mounting plate 11, an adjusting gear 12 is rotatably arranged. On the side wall of the side support plate 8 facing the adjusting gear 12, a transmission groove 13 is provided. Inside the transmission groove 13, a transmission rack 14 meshing with the adjusting gear 12 is fixedly installed. On the side wall of the mounting plate 11, a driving structure 15 is arranged. At the top of the side support plate 8, an angle adjusting structure is provided.

[0035] In this embodiment, during use, by rotating the sliding guide rail 4 with external threads 5, the bearing plate 6 is pushed to move, so that the bearing plate 6 extends out of the gantry suspension 1. Then, by pushing the guiding block 10 to move inside the guiding slide rail 9, the mounting plate 11 drives the adjusting gear 12 to move. At this time, the adjusting gear 12 does not rotate. Furthermore, in cooperation with the transmission grooves 13 and transmission racks 14 on both sides, the two side support plates 8 are pushed to slide, so that the two side support plates 8 extend out of the bearing plate 6. As Figure 2 shown in the structural schematic diagram after the bearing plate 6 extends out of the gantry suspension 1. At this time, the goods are placed on the tops of the two side support plates 8 by a forklift. Then, through the reverse movement of the bearing plate 6 and the side support plates 8, the goods are extended into the interior of the truck, so as to achieve the purpose of facilitating loading.

[0036] Compared with the prior art, the movable side support plates 8 and the bearing plate 6 jointly form the tabletop of the telescopic loading and unloading platform, which can effectively transmit the goods directly into the interior of the truck, can effectively avoid the forklift from getting on and off the vehicle, and can effectively improve the safety during the loading of goods.

[0037] Through the setting of the angle adjusting mechanism, the cargo box can deflect at an angle following the staggered movement of the two side support plates 8, so as to adjust the angle of the cargo box and align the cargo box with the flatbed truck, achieving the purpose of improving the safety and convenience during the loading of goods.

[0038] In a further preferred embodiment of the present invention, as Figure 2 、 Figure 3 and Figure 4 shown, a connecting support 16 is slidably arranged inside the guiding protrusion 3. At both ends of the connecting support 16, there are hole rings 17. The two ends of the sliding guide rail 4 respectively correspond to the hole rings 17 on both sides, and inside the hole rings 17, there are fixed terminals 18 threadedly connected with the sliding guide rail 4.

[0039] In this embodiment, the connecting bracket 16 and the hole ring 17 are provided for installing the sliding guide rail 4, and the fixed terminal 18 is provided for locking the sliding guide rail 4, so that the sliding guide rail 4 is rotatably connected to the hole ring 17. One end of the sliding guide rail 4 provided with the external thread 5 is provided with a driving motor. During use, the driving motor is used to control the rotation of the sliding guide rail 4 with the external thread 5 to control the sliding of the bearing plate 6. The bottom end of the connecting bracket 16 is provided with a hydraulic lifting platform for controlling the height of the bearing plate 6 so that the bearing plate 6 can extend into the interior of the flatbed truck.

[0040] In a further preferred embodiment of the present invention, as Figure 6 shown, the driving structure 15 includes a connecting frame 151. The connecting frame 151 is fixedly connected to the end wall of the mounting plate 11. A driving gear 152 is arranged inside the connecting frame 151. The driving gear 152 meshes with the adjusting gear 12, and a control motor is arranged inside the adjusting gear 12.

[0041] In this embodiment, the control motor drives the adjusting gear 12 to rotate, so that the adjusting gear 12 can drive the two side support plates 8 to move in opposite directions. As Figure 6 shown, during the process of the two side support plates 8 intersecting with each other, the cargo box supported on the upper ends of the two trays 26 can automatically slide at an angle, so that the cargo box can be adjusted at an angle following the intersection of the side support plates 8, so as to facilitate the adjustment of the angle of the cargo box and align the cargo box with the flatbed truck, achieving the purpose of improving the safety and convenience when loading goods.

[0042] In a further preferred embodiment of the present invention, as Figure 7 shown, an adjusting screw 19 is arranged inside the guiding slide rail 9. The adjusting screw 19 passes through the guiding block 10 and is in threaded cooperation with the guiding block 10. Both ends of the adjusting screw 19 are provided with frames fixedly connected to the inner end wall of the guiding slide rail 9. One end of the adjusting screw 19 is provided with an adjusting motor 20.

[0043] In this embodiment, as Figure 7 shown, during use, the adjusting motor 20 drives the adjusting screw 19 to rotate, so that the adjusting screw 19 controls the sliding of the guiding block 10, achieving the purpose of controlling the movement of the mounting plate 11 to cooperate with the adjusting gear 12 to push the two side support plates 8 to slide.

[0044] In a further preferred embodiment of the present invention, as Figure 4 shown, a linkage groove 21 is formed at the position of the bottom end of the bearing plate 6 opposite to the sliding guide rail 4, and an internal thread groove 22 matching the external thread 5 is arranged on the groove wall of the linkage groove 21.

[0045] In this embodiment, the linkage groove 21 is provided for installing the bearing plate 6, and the internal thread groove 22 is in threaded cooperation with the external thread 5. Thus, when the sliding guide rail 4 with the external thread 5 is rotated, the bearing plate 6 can be effectively pushed to slide.

[0046] In a further preferred embodiment of the present invention, as Figure 5 and Figure 6 shown, the angle adjustment structure includes a positioning guide rail 23. The positioning guide rail 23 is opened at the upper end of the side support plate 8. An adjustment slider 24 is arranged inside the positioning guide rail 23. A rotating shaft 25 is arranged at the top end of the adjustment slider 24. A tray 26 is rotatably arranged at the upper end of the rotating shaft 25. A transmission structure 31 is arranged at the top end of the tray 26.

[0047] In this embodiment, the positioning guide rail 23 is used to install the adjustment slider 24. A transmission screw is threadedly connected inside the adjustment slider 24, and the transmission screw is rotatably arranged inside the adjustment slider 24. A transmission motor for driving the transmission screw to rotate is arranged at the end of the transmission screw, and the transmission motors arranged inside the two side support plates 8 are synchronous motors (that is, the rotation directions and speeds of the two transmission motors are always the same);

[0048] The bearing plate 6 extends out of the gantry suspension 1, and the two side support plates 8 extend out of the bearing plate 6 through the adjustment gear 12. When both the bearing plate 6 and the side support plates 8 extend out of the bearing plate 6, the adjustment slider 24 is pushed by the transmission motor to move to one end of the positioning guide rail 23 and correspond to the extension direction of the side support plate 8, as Figure 2 shown. At this time, the cargo box is placed on the top ends of the two trays 26 by a forklift, and then through the reverse movement of the bearing plate 6, the side support plates 8 and the adjustment slider 24, the goods are extended into the interior of the truck for the purpose of loading.

[0049] In a further preferred embodiment of the present invention, as Figure 2 and Figure 3 shown, the transmission structure 31 includes a sliding plate 32. The sliding plate 32 is slidably arranged on the top end of the tray 26. A transmission guide rail 33 inserted into the interior of the tray 26 is arranged at the bottom end of the sliding plate 32, and a return spring fixedly connected to the tray 26 is arranged at the bottom end of the transmission guide rail 33. An installation bracket 34 is arranged at the upper end of the sliding plate 32. An electric conveyor belt 35 is arranged at the top end of the installation bracket 34. A support skeleton 36 is arranged inside the electric conveyor belt 35.

[0050] In this embodiment, when the cargo box is placed on the top of the pallet 26, the cargo box is in contact with the electric conveyor belt 35. When the slip of the bearing plate 6 and the side support plate 8 transfers the cargo box into the interior of the flatbed truck or the freight car, the electric conveyor belt 35 drives the cargo box to move to adjust the position of the cargo box, so as to achieve the effect of neatly arranging the cargo box. Through the arrangement of the transmission guide rail 33, when the two side support plates 8 stagger and adjust the angle of the cargo box, the transmission guide rail 33 can effectively guide the position of the sliding plate 32, avoiding the friction between the cargo box and the electric conveyor belt 35 when the cargo box slides, which may cause wrinkles on the electric conveyor belt 35, so as to avoid the influence of the cargo box on the electric conveyor belt 35, enabling the electric conveyor belt 35 to always be parallel to the bottom of the cargo box, effectively improving the stability when transferring the cargo box, and improving the support strength of the electric conveyor belt 35 through the support skeleton 36.

[0051] In a further preferred embodiment of the present invention, as Figure 2 and Figure 3 shown, positioning outer frames 27 are slidably arranged at both ends of the bearing plate 6. Insertion guide rails 28 are arranged on the side walls of the positioning outer frames 27, and lifting sliding grooves 29 which are slidably matched with the insertion guide rails 28 are formed in the inner wall of the gantry suspension 1.

[0052] In this embodiment, the positioning outer frames 27 and the insertion guide rails 28 are arranged to improve the stability of the bearing plate 6 during sliding. And in cooperation with the arrangement of the insertion guide rails 28 and the lifting sliding grooves 29, when the bearing plate 6 moves up and down through the hydraulic lifting platform, it is used to lift the positioning outer frames 27.

[0053] In a further preferred embodiment of the present invention, as Figure 1 and Figure 3 shown, an electric extension plate 30 is arranged at the bottom end of the gantry suspension 1.

[0054] In this embodiment, through the arrangement of the electric extension plate 30, when the bearing plate 6 moves left and right, the electric extension plate 30 will automatically move along with the bearing plate 6 to expand the support area of the gantry suspension 1 to improve the stability of the gantry suspension 1, and support feet are arranged at the ends of the electric extension plate 30.

[0055] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Telescopic unloading platform, characterized in that, It includes a gantry suspension (1). A fixed platform (2) is provided at the inner bottom end of the gantry suspension (1). A guiding protrusion (3) is provided at the top end of the fixed platform (2). Two sliding guide rails (4) are provided at the top end of the guiding protrusion (3). An external thread (5) is provided on the outer peripheral wall of one of the sliding guide rails (4). A bearing plate (6) is slidably arranged at the upper ends of the two sliding guide rails (4). A sliding groove (7) is formed at the upper end of the bearing plate (6). Side support plates (8) are provided on both sides of the sliding groove (7). A guiding slide rail (9) is formed at the bottom wall of the sliding groove (7). A guiding block (10) is arranged inside the guiding slide rail (9). An installation plate (11) is fixedly provided at the upper end of the guiding block (10). An adjusting gear (12) is rotatably arranged at the upper end of the installation plate (11). A transmission groove (13) is formed in the side wall of the side support plate (8) facing the adjusting gear (12). A transmission rack (14) meshing with the adjusting gear (12) is fixedly installed inside the transmission groove (13). A driving structure (15) is arranged on the side wall of the installation plate (11). An angle adjusting structure is arranged at the top end of the side support plate (8). The angle adjusting structure includes a positioning guide rail (23). The positioning guide rail (23) is formed at the upper end of the side support plate (8). An adjusting slider (24) is arranged inside the positioning guide rail (23). A rotating shaft (25) is provided at the top end of the adjusting slider (24). A tray (26) is rotatably arranged at the upper end of the rotating shaft (25). A transmission structure (31) is provided at the top end of the tray (26). The transmission structure (31) includes a sliding plate (32). The sliding plate (32) is slidably arranged at the top end of the tray (26). A transmission guide rail (33) inserted into the tray (26) is provided at the bottom end of the sliding plate (32), and a return spring fixedly connected to the tray (26) is provided at the bottom end of the transmission guide rail (33). An installation bracket (34) is provided at the upper end of the sliding plate (32). An electric conveyor belt (35) is provided at the top end of the installation bracket (34). A support skeleton (36) is arranged inside the electric conveyor belt (35).

2. The retractable unloading platform according to claim 1, wherein A connecting bracket (16) is slidably arranged inside the guiding protrusion (3). Hole rings (17) are provided at both ends of the connecting bracket (16). The two ends of the sliding guide rail (4) respectively correspond to the hole rings (17) on both sides, and a fixing terminal (18) threadedly connected to the sliding guide rail (4) is arranged inside the hole ring (17).

3. The retractable unloading platform according to claim 2, wherein The driving structure (15) includes a connecting frame (151). The connecting frame (151) is fixedly connected to the end wall of the installation plate (11). A driving gear (152) is arranged inside the connecting frame (151). The driving gear (152) meshes with the adjusting gear (12), and a control motor is arranged inside the adjusting gear (12).

4. The retractable discharging platform according to claim 3, characterized in that, An adjusting screw rod (19) is arranged inside the guiding slide rail (9). The adjusting screw rod (19) penetrates through the guiding block (10) and is in threaded fit with the guiding block (10). Frames fixedly connected to the inner end walls of the guiding slide rail (9) are arranged at both ends of the adjusting screw rod (19), and an adjusting motor (20) is arranged at one end of the adjusting screw rod (19).

5. The retractable discharging platform according to claim 4, characterized in that, A linkage groove (21) is formed at a position of the bottom end of the bearing plate (6) opposite to the sliding guide rail (4), and an internal thread groove (22) matched with the external thread (5) is arranged on the groove wall of the linkage groove (21).

6. The retractable unloading platform according to claim 1, wherein, An electric extension plate (30) is arranged at the bottom end of the gantry suspension (1), and a support foot is arranged at the end of the electric extension plate (30).

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