A cargo unloading assisting device

Abstract

This invention discloses a logistics unloading auxiliary device, including two transverse beams, a lifting mechanism, an anti-rapid fall self-locking mechanism, a rapid retraction mechanism, and a rapid fall inertial force transmission mechanism. The lifting mechanism is located in the center of the front of the supporting guide plate, the anti-rapid fall self-locking mechanism is located on the upper outer side of the supporting guide plate, the rapid retraction mechanism is located at one end of each side of the auxiliary unloading platform, and the rapid fall inertial force transmission mechanism is located inside the lifting mechanism. If a hydraulic pipe ruptures and hydraulic oil is exposed, the auxiliary unloading platform will suddenly fall rapidly. The falling inertial force of the counterweight reaction block drives the gear to rotate, and the gear meshes with the teeth to realize the feedback transmission of the inertial force generated during the sudden fall, thereby converting the inertial force of the rapid fall into the power to lock the device.

Description

Technical Field

[0001] This invention relates to the field of cargo loading and unloading technology in logistics, and in particular to an auxiliary device for unloading cargo in logistics. Background Technology

[0002] Logistics refers to the entire process of planning, implementing, and managing the movement of raw materials, semi-finished products, finished products, or related information from the place of origin to the place of consumption, through transportation, storage, and distribution, in order to meet customer needs. Logistics is a system that controls raw materials, manufactured goods, finished products, and information, and the physical movement of goods from the supply stage through various intermediate links to the final consumer, thereby achieving the organization's clear objectives. Modern logistics is a product of economic globalization and an important service industry that promotes economic globalization. The most time-consuming and labor-intensive part of logistics transportation is loading and unloading of goods. In order to improve the efficiency of loading and unloading, unloading auxiliary devices can be used.

[0003] In the process of unloading logistics goods, existing unloading auxiliary devices often experience hydraulic oil pipe aging and cracking during long-term use, which can lead to hydraulic oil leakage and loss of lifting capacity of the hydraulic cylinder. This can cause the unloading platform of the auxiliary device to suddenly drop without timely descent protection, potentially leading to safety accidents, damage to goods on the unloading platform, and unnecessary transportation compensation. Summary of the Invention

[0004] The purpose of this invention is to provide a loading and unloading auxiliary device for logistics, in order to solve the problem mentioned in the background art that when the hydraulic cylinder loses its lifting capacity due to insufficient hydraulic oil, the loading and unloading platform of the loading and unloading auxiliary device suddenly falls, and the platform cannot be stopped in time, which can easily lead to safety accidents.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a logistics unloading auxiliary device, comprising two transverse beams, a longitudinal beam installed between the two transverse beams, a support guide plate installed at the top center of the transverse beams, a mounting frame installed on the lower front of one of the support guide plates, and a controller installed on the front of the mounting frame, an auxiliary unloading platform disposed above the two support guide plates, and an inclined plate hinged to the lower end of one end of the auxiliary unloading platform, further comprising a lifting mechanism, a self-locking mechanism for preventing rapid fall, a quick retraction mechanism, and a rapid fall inertial force transmission mechanism, wherein the lifting mechanism is disposed at the center of the front of the support guide plate, the self-locking mechanism for preventing rapid fall is disposed on the upper outer side of the support guide plate, the quick retraction mechanism is disposed at one end of both sides of the auxiliary unloading platform, and the rapid fall inertial force transmission mechanism is disposed inside the lifting mechanism.

[0006] As a preferred embodiment of the present invention, the lifting mechanism further includes a fixed seat, a hydraulic cylinder, and a lifting seat. The fixed seat is installed on the middle of one side of the supporting guide plate, the hydraulic cylinder is installed on the top of the fixed seat, and the lifting seat is installed on the telescopic end of the hydraulic cylinder.

[0007] As a preferred embodiment of the present invention, the hydraulic cylinder is connected to the hydraulic pump via a hydraulic oil pipe, the lifting seat is U-shaped, the lifting seat is slidably connected to the supporting guide plate, and the auxiliary unloading platform is fixedly connected to both lifting seats.

[0008] As a preferred embodiment of the present invention, the anti-rapid fall self-locking mechanism further includes a sliding arm, a first extension arm, a second extension arm, a connecting plate, locking teeth, tooth grooves, and sliding holes. Sliding arms are provided on both sides of the lifting seat. One end of one sliding arm is equipped with a first extension arm, and one end of the other sliding arm is equipped with a connecting plate. One end of the connecting plate is provided with locking teeth. Multiple tooth grooves are provided on the upper sides of both sides of the support guide plate, and sliding holes are provided on both sides of the lifting seat.

[0009] As a preferred embodiment of the present invention, the sliding arm corresponds to the position of the sliding hole, the sliding arm is slidably connected to the lifting seat, the multiple connecting plates are located at the same height, and the locking teeth are adapted to the tooth grooves.

[0010] As a preferred technical solution of the present invention, the rapid descent inertial force transmission mechanism further includes a gear, a linkage swing arm, a counterweight reaction block, teeth, and a spring. The lifting seat has an installation chamber inside. A gear is provided on one side of the chamber, and a linkage swing arm is connected to the front of the gear. A counterweight reaction block is provided at one end of the linkage swing arm, and a spring is connected to the top of the counterweight reaction block. Teeth are provided at one end of the sliding arm.

[0011] As a preferred embodiment of the present invention, the gear is rotatably connected to the lifting seat, one end of the linkage swing arm is fixedly connected to the rotation axis of the gear, the gear and the teeth are in corresponding positions, the gear and the teeth are meshed, and the upper end of the spring is fixedly connected to the lifting seat.

[0012] As a preferred embodiment of the present invention, the rapid take-up and release mechanism further includes a motor, a drive pulley, a take-up and release roller, a driven pulley, a belt, a connecting rod, and a pull rope. A motor is installed at one end of each side of the auxiliary unloading platform, and a drive pulley is installed at the output end of the motor. A take-up and release roller is provided at one corner of each side of the auxiliary unloading platform, and a driven pulley is installed at one end of each take-up and release roller. A belt is fitted around the outer sides of the drive pulley and the driven pulley. A connecting rod is installed at one end of each side of the inclined plate, and a pull rope is wound around the inner side of the take-up and release roller.

[0013] As a preferred embodiment of the present invention, the take-up and release rollers are rotatably connected to the auxiliary unloading platform, one end of the pull rope is fixedly connected to the connecting rod, and the outer diameter of the driving pulley is half that of the driven pulley.

[0014] As a preferred embodiment of the present invention, the bottom center of the auxiliary unloading platform is provided with a docking groove, and the docking groove corresponds to the position of the longitudinal beam. One end of the transverse beam is equipped with a roller, and the other end of the transverse beam is equipped with a caster wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, through the arrangement of gears, a linkage swing arm, a counterweight reaction block, teeth, and springs, sequentially moves the goods to an auxiliary unloading platform when unloading goods from a transport vehicle. A controller then retracts the hydraulic cylinder, lowering the auxiliary unloading platform to the ground and unloading the goods. During long-term lifting operations, if a hydraulic pipe ruptures, causing hydraulic oil to leak and the hydraulic cylinder to lose its support, the auxiliary unloading platform will suddenly and rapidly fall. The downward inertia of the counterweight reaction block will cause the linkage swing arm to swing, compressing the spring and rotating the gears. The gears mesh with the teeth, thus feeding back the inertial force generated during the sudden fall and converting it into locking power for this design.

[0017] 2. This invention, by setting up sliding arms, a first extension arm, a second extension arm, a connecting plate, and locking teeth, allows the two sliding arms to slide towards each other due to the sudden drop of the auxiliary unloading platform, and the first and second extension arms to slide towards each other, thereby causing the locking teeth to insert into the corresponding tooth grooves. The interfaces of the locking teeth and the tooth grooves can be set to be triangular, so that the locking teeth and tooth grooves can mesh, thereby locking the position of the lifting seat, and thus stopping the auxiliary unloading platform in an emergency, preventing the auxiliary unloading platform from continuing to fall, causing a safety accident, and damaging the goods placed on the auxiliary unloading platform.

[0018] 3. This invention, by setting up a motor, a drive pulley, a take-up and undo roller, a driven pulley, a belt, a connecting rod, and a pull rope, allows the motor to rotate during unloading. This rotation drives the drive pulley, and the belt and driven pulley work together to rotate the take-up and undo roller, unwinding the pull rope. The inclined plate then rotates outward under gravity, opening up. After the unloading platform is lowered to the ground, the inclined plate can be brought into contact with the ground to form a ramp, facilitating unloading. Similarly, after unloading, the motor rotates to rewind the pull rope, allowing the inclined plate to rotate and retract, thus reducing the space occupied by this design. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the rapid deployment and retraction mechanism in this invention;

[0021] Figure 3 This is a schematic diagram of the anti-rapid fall self-locking mechanism in this invention.

[0022] Figure 4 This is a schematic diagram of the lifting mechanism in this invention;

[0023] Figure 5 This is a cross-sectional view of the lifting seat in this invention;

[0024] Figure 6 This is a schematic diagram of the structure at the transverse beam in this invention.

[0025] In the diagram: 1. Transverse beam; 11. Caster wheel; 12. Roller; 13. Support guide plate; 14. Mounting frame; 15. Controller; 16. Docking groove; 17. Auxiliary unloading platform; 18. Inclined plate; 19. Longitudinal beam; 2. Lifting mechanism; 21. Fixed seat; 22. Hydraulic cylinder; 23. Lifting seat; 3. Anti-rapid fall self-locking mechanism; 31. Sliding arm; 32. First extension arm; 33. Second extension arm; 34. Connecting plate; 35. Locking tooth; 36. Tooth groove; 37. Sliding hole; 4. Rapid take-up and release mechanism; 41. Motor; 42. Drive pulley; 43. Take-up and release roller; 44. Driven pulley; 45. Belt; 46. Connecting rod; 47. Pull rope; 5. Rapid fall inertia force transmission mechanism; 51. Gear; 52. Linkage swing arm; 53. Counterweight reaction block; 54. Tooth; 55. Spring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-6 This invention provides a technical solution for an unloading auxiliary device for logistics:

[0028] Example 1:

[0029] according to Figure 1 , Figure 4 and Figure 5 As shown, a logistics unloading auxiliary device includes two transverse beams 1, a longitudinal beam 19 is installed between the two transverse beams 1, a support guide plate 13 is installed at the top center of the transverse beams 1, a mounting frame 14 is installed on the lower front of one of the support guide plates 13, and a controller 15 is installed on the front of the mounting frame 14. An auxiliary unloading platform 17 is arranged above the two support guide plates 13, and an inclined plate 18 is hinged to the lower end of one end of the auxiliary unloading platform 17. It also includes a lifting mechanism 2, an anti-rapid fall self-locking mechanism 3, a rapid retraction mechanism 4, and a rapid fall inertial force transmission mechanism 5. The lifting mechanism 2 is located at the center of the front of the support guide plate 13, the anti-rapid fall self-locking mechanism 3 is located on the upper outer side of the support guide plate 13, the rapid retraction mechanism 4 is located at one end of both sides of the auxiliary unloading platform 17, and the rapid fall inertial force transmission mechanism 5 is located inside the lifting mechanism 2.

[0030] The lifting mechanism 2 also includes a fixed base 21, a hydraulic cylinder 22, and a lifting seat 23. The fixed base 21 is installed on the middle of one side of the support guide plate 13. The hydraulic cylinder 22 is installed on the top of the fixed base 21. The lifting seat 23 is installed on the telescopic end of the hydraulic cylinder 22. The hydraulic cylinder 22 is connected to the hydraulic pump through a hydraulic oil pipe. The lifting seat 23 is U-shaped and is slidably connected to the support guide plate 13. The auxiliary unloading platform 17 is fixedly connected to both lifting seats 23. During the unloading process, the hydraulic cylinder 22 can provide lifting power to the auxiliary unloading platform 17.

[0031] The anti-rapid fall self-locking mechanism 3 also includes a sliding arm 31, a first extension arm 32, a second extension arm 33, a connecting plate 34, a locking tooth 35, a tooth groove 36, and a sliding hole 37. Sliding arms 31 are provided on both sides of the lifting seat 23. One end of one sliding arm 31 is fitted with the first extension arm 32, and the other end of the sliding arm 31 is fitted with the connecting plate 34. A locking tooth 35 is provided on one end of the connecting plate 34. Multiple tooth grooves 36 are provided on the upper sides of both sides of the support guide plate 13. Sliding holes 37 are provided on both sides of the lifting seat 23. The sliding arms 31 correspond to the sliding holes 37, and the sliding arms 31 are slidably connected to the lifting seat 23. Multiple connecting plates 34 are at the same height. The locking tooth 35 is matched with the tooth groove 36, allowing the locking tooth 35 to lock the position of the lifting seat 23, thereby urgently stopping the auxiliary unloading platform 17 and preventing it from continuing to fall, causing a safety accident, and damaging the goods placed on the auxiliary unloading platform 17.

[0032] Example 2:

[0033] Based on Example 1, such as Figure 1 and Figure 3 As shown, the rapid descent inertial force transmission mechanism 5 also includes a gear 51, a linkage arm 52, a counterweight reaction block 53, teeth 54, and a spring 55. The lifting base 23 has an internal mounting chamber. A gear 51 is located on one side of the chamber, and the linkage arm 52 is connected to the front of the gear 51. A counterweight reaction block 53 is located at one end of the linkage arm 52, and a spring 55 is connected to the top of the counterweight reaction block 53. Teeth 54 are located at one end of the sliding arm 31. The gear 51 is rotatably connected to the lifting base 23, and one end of the linkage arm 52 is connected to the gear 51. The rotating shaft of 1 is fixedly connected, the gear 51 and the tooth 54 are in corresponding positions and mesh with each other, the upper end of the spring 55 is fixedly connected to the lifting seat 23, and the downward inertial force of the counterweight reaction block 53 can drive the linkage swing arm 52 to swing to a certain extent and compress the spring 55, thereby driving the gear 51 to rotate. The gear 51 meshes with the tooth 54, thereby realizing the feedback transmission of the inertial force generated during the sudden drop, and thus converting the inertial force of the rapid drop into the power to lock the design.

[0034] Example 3:

[0035] Based on Example 1, such as Figure 1 , Figure 2 and Figure 6As shown, the rapid take-up and release mechanism 4 also includes a motor 41, a drive pulley 42, a take-up and release roller 43, a driven pulley 44, a belt 45, a connecting rod 46, and a pull rope 47. A motor 41 is installed at one end of each side of the auxiliary unloading platform 17, and a drive pulley 42 is installed at the output end of the motor 41. A take-up and release roller 43 is installed at one corner of each side of the auxiliary unloading platform 17, and a driven pulley 44 is installed at one end of each take-up and release roller 43. A belt 45 is fitted around the outer sides of both the drive pulley 42 and the driven pulley 44. A connecting rod 46 is installed at one end of each side of the inclined plate 18. A pull rope 47 is wound around the inner side of the take-up and release roller 43. The take-up and release roller 43 and the auxiliary unloading platform 17 are connected... 7. Rotary connection: One end of the pull rope 47 is fixedly connected to the connecting rod 46. The outer diameter of the driving pulley 42 is half that of the driven pulley 44, which can reduce the rotation speed of the motor 41, making the winding more stable. The bottom center of the auxiliary unloading platform 17 is provided with a docking groove 16. The inclined plate 18 is attached to the ground to form a slope, which facilitates unloading. Similarly, the pull rope 47 can be wound up, which can lower the inclined plate 18 to rotate and retract, realizing the storage of the inclined plate 18 and reducing the space occupied by this design. The docking groove 16 corresponds to the position of the longitudinal beam 19. One end of the transverse beam 1 is equipped with a roller 12, and the other end of the transverse beam 1 is equipped with a caster wheel 11.

[0036] Working principle: Please refer to the instructions for use. Figure 1-6 When unloading goods from a transport vehicle, the goods are first moved to the auxiliary unloading platform 17, and the hydraulic cylinder 22 is retracted by the controller 15 to move the auxiliary unloading platform 17 down to the ground and unload the goods from the auxiliary unloading platform 17. During long-term use of the lifting system, if the oil pipe ruptures and the hydraulic oil is exposed, causing the hydraulic cylinder 22 to lose its support force, the auxiliary unloading platform 17 will suddenly and rapidly fall. The falling inertia force of the counterweight reaction block 53 can drive the linkage swing arm 52 to swing to a certain extent and compress the spring 55, thereby driving the gear 51 to rotate, and the gear 51 meshes with the teeth 54.

[0037] Due to the sudden drop of the auxiliary unloading platform 17, the gear 51 and the tooth 54 mesh, which can drive the two sliding arms 31 to slide towards each other, and drive the first extension arm 32 and the second extension arm 33 to slide towards each other, and drive the locking tooth 35 to insert into the corresponding tooth groove 36. The interface of the locking tooth 35 and the tooth groove 36 can be set as a triangle, so that the locking tooth 35 and the tooth groove 36 can mesh, thereby locking the position of the lifting seat 23, and thus stopping the auxiliary unloading platform 17 in an emergency.

[0038] During unloading, the motor 41 is controlled to rotate, which drives the drive pulley 42 to rotate. The belt 45 and the driven pulley 44 work together to drive the take-up and unwind rollers 43 to rotate, thereby unwinding the pull rope 47. The inclined plate 18 can then rotate outward and open under the action of gravity. After the auxiliary unloading platform 17 is lowered to the ground, the inclined plate 18 can be used to fit against the ground. Similarly, after unloading is completed, the motor 41 is rotated to wind up the pull rope 47, which allows the inclined plate 18 to rotate and be retracted, thus achieving the storage of the inclined plate 18.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A logistics unloading auxiliary device, comprising two transverse beams (1), a longitudinal beam (19) being installed between the two transverse beams (1), a support guide plate (13) being installed at the top center of the transverse beams (1), a mounting frame (14) being installed below the front of one of the support guide plates (13), and a controller (15) being installed on the front of the mounting frame (14), an auxiliary unloading platform (17) being arranged above the two support guide plates (13), and an inclined plate (18) being hinged to the lower end of one end of the auxiliary unloading platform (17), characterized in that: It also includes a lifting mechanism (2), an anti-rapid fall self-locking mechanism (3), a rapid retraction mechanism (4), and a rapid fall inertial force transmission mechanism (5). The lifting mechanism (2) is located in the center of the front of the support guide plate (13). The anti-rapid fall self-locking mechanism (3) is located on the upper outer side of the support guide plate (13). The rapid retraction mechanism (4) is located at one end of both sides of the auxiliary unloading platform (17). The rapid fall inertial force transmission mechanism (5) is located inside the lifting mechanism (2). The lifting mechanism (2) also includes a fixed seat (21), a hydraulic cylinder (22) and a lifting seat (23). The fixed seat (21) is installed on the middle of one side of the support guide plate (13), the hydraulic cylinder (22) is installed on the top of the fixed seat (21), and the lifting seat (23) is installed on the telescopic end of the hydraulic cylinder (22). The hydraulic cylinder (22) is connected to the hydraulic pump through a hydraulic oil pipe. The lifting seat (23) is U-shaped. The lifting seat (23) is slidably connected to the support guide plate (13). The auxiliary unloading platform (17) is fixedly connected to both lifting seats (23). The anti-rapid fall self-locking mechanism (3) further includes a sliding arm (31), a first extension arm (32), a second extension arm (33), a connecting plate (34), a locking tooth (35), a tooth groove (36), and a sliding hole (37). The lifting seat (23) is provided with sliding arms (31) on both sides. One end of one of the sliding arms (31) is equipped with the first extension arm (32), and the other end of the sliding arm (31) is equipped with a connecting plate (34). One end of the connecting plate (34) is provided with a locking tooth (35). Multiple tooth grooves (36) are opened on the upper sides of both sides of the support guide plate (13). Sliding holes (37) are opened on both sides of the lifting seat (23). The sliding arm (31) is positioned corresponding to the sliding hole (37), the sliding arm (31) is slidably connected to the lifting seat (23), the multiple connecting plates (34) are located at the same height, and the locking tooth (35) is adapted to the tooth groove (36); The rapid descent inertial force transmission mechanism (5) also includes a gear (51), a linkage arm (52), a counterweight reaction block (53), teeth (54), and a spring (55). The lifting seat (23) has an installation chamber inside. A gear (51) is provided on one side of the chamber, and the front of the gear (51) is connected to the linkage arm (52). A counterweight reaction block (53) is provided at one end of the linkage arm (52), and a spring (55) is connected to the top of the counterweight reaction block (53). Teeth (54) are provided at one end of the sliding arm (31). The gear (51) is rotatably connected to the lifting seat (23), one end of the linkage arm (52) is fixedly connected to the rotation axis of the gear (51), the gear (51) and the tooth (54) are in corresponding positions, the gear (51) and the tooth (54) are meshed, and the upper end of the spring (55) is fixedly connected to the lifting seat (23).

2. The unloading aid according to claim 1, characterized in that The rapid take-up and release mechanism (4) also includes a motor (41), a drive pulley (42), a take-up and release roller (43), a driven pulley (44), a belt (45), a connecting rod (46), and a pull rope (47). The auxiliary unloading platform (17) is equipped with a motor (41) at one end of both sides, and the output end of the motor (41) is equipped with a drive pulley (42). The auxiliary unloading platform (17) is equipped with a take-up and release roller (43) at one corner of both sides, and a driven pulley (44) is installed at one end of the take-up and release roller (43). The drive pulley (42) and the driven pulley (44) are both fitted with a belt (45) on their outer sides. The inclined plate (18) is equipped with a connecting rod (46) at one end of both sides. The take-up and release roller (43) is wound with a pull rope (47) on its inner side.

3. The unloading aid according to claim 2, characterized in that: The take-up and release roller (43) is rotatably connected to the auxiliary unloading platform (17), one end of the pull rope (47) is fixedly connected to the connecting rod (46), and the outer diameter of the driving pulley (42) is half that of the driven pulley (44).

4. The unloading aid according to claim 3, characterized in that: The auxiliary unloading platform (17) has a docking groove (16) at the bottom center, and the docking groove (16) corresponds to the longitudinal beam (19). One end of the transverse beam (1) is equipped with a roller (12), and the other end of the transverse beam (1) is equipped with a caster wheel (11).

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