High-stability fork lifting device for container loading and unloading

Abstract

The utility model relates to the technical field of container loading and unloading, and discloses a high-stability fork lifting device for container loading and unloading, which comprises a fixing frame and is characterized in that when a clamping plate is attached to the surface of a container, a motor II continuously works, and the clamping plate moves close to a stabilizing frame through a protective assembly; the long plate drives the racks and the movable blocks to move close to the rotating rod, the racks synchronously drive the second clamping teeth to rotate, the racks can synchronously move in the radial direction through the round rod, the first clamping teeth and the gear ring, the movable blocks enter the clamping grooves, the inner walls of the clamping grooves abut against the sides, away from the inclined faces, of the movable blocks, and the movable blocks limit the rotating rod. When the motor II is turned off in time, the gear I and the gear II cannot continuously rotate, so that the screw cannot continuously rotate, the clamping plate cannot continuously clamp the container, and the situation that the container is deformed and even damaged due to overlarge clamping force caused by not turning off the motor II in time can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of container loading and unloading technology, specifically to a highly stable container loading and unloading forklift device. Background Technology

[0002] Containers are commonly used in logistics operations. To facilitate transportation and management, special vehicles equipped with forklift mechanisms are needed to centrally transfer containers.

[0003] According to a publicly disclosed rotating fork mechanism for container front-end lifting (Announcement No.: CN116621086A), the above application uses a second motor to drive the corresponding gear to rotate. Under the rotation of the first gear, the meshing transmission with the teeth, combined with multiple gears, stabilizes the overall rotation of the outer shell, thereby changing the angle of the fork assembly, making it easier for personnel to flexibly place it in multiple directions. By starting the first motor, the forward and reverse lead screws can be rotated. Under the limit of the slide rail on the slide block, the two sides of the forward and reverse lead screws respectively engage with the transmission holes on both sides, so that the support plates on both sides can clamp relative to each other, thereby achieving fixed clamping of the container and enabling the lifting operation of the container.

[0004] However, while the mechanism functionally meets the requirements for container lifting and rotation, a significant problem exists in actual operation: when clamping a container, if the motor is not shut off in time, the clamping force may continue to increase, causing excessive pressure on the container surface and resulting in deformation. This deformation not only affects the container's sealing and structural integrity but may also damage the cargo loaded inside, thereby affecting the normal use of the container and the safety of logistics operations. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable container loading and unloading forklift device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a highly stable container loading and unloading forklift device, including a fixed frame, the surface of which is provided with a stabilizing groove, and a stabilizing component to prevent container displacement. The stabilizing component includes: a groove, a second motor, a screw, a threaded block, a stabilizing frame, a base plate, a slider, a clamping plate, and a first spring. The surface of the fixed frame is provided with a protective component to prevent excessive clamping force from causing deformation of the container surface, and a transmission component to prevent damage to the second motor. The protective component includes:

[0007] Gear 1 is rotatably connected to the inner wall of the groove. The screw passes through gear 1 and is fixedly connected to gear 1. Gear 2 is rotatably connected to the inner wall of the groove. Gear 1 and gear 2 mesh with each other. A rotating rod is fixed to the surface of gear 2.

[0008] Preferably, the protective assembly further includes a stabilizing plate fixed to the inner wall of the groove. A fixing ring is fixed to the surface of the stabilizing plate, and a rotating rod penetrates the fixing ring. The rotating rod penetrates the stabilizing plate, and a cavity is formed inside the fixing ring. A toothed ring is rotatably connected to the inner wall of the cavity, and a round rod is rotatably connected to the inner wall of the cavity. A first locking tooth and a second locking tooth are fixed to the surface of the round rod. A rack is disposed inside the cavity, penetrating the fixing ring and slidably connected to it. The rack engages with the second locking tooth, and the first locking tooth engages with the toothed ring. A movable groove is formed on the surface of the rack. The inner wall of the container is slidably connected to a movable block. A spring three is fixed to the surface of the movable block. The end of the spring three away from the movable block is fixed to the inner wall of the movable groove. The protective assembly also includes a limiting component. The end of the movable block away from the spring three is set as an inclined surface. The long plate drives the rack and the movable block to move closer to the rotating rod. The rack drives the second locking tooth to rotate synchronously. Through the round rod, the first locking tooth, and the toothed ring, the racks can move radially synchronously. The movable block enters the slot. The inner wall of the slot abuts against the side of the movable block away from the inclined surface. The movable block limits the rotating rod. The first gear and the second gear cannot continue to rotate, so the screw cannot continue to rotate, and the clamping plate cannot continue to clamp the container.

[0009] Preferably, the limiting component includes a long plate, which is slidably connected to the inner wall of the groove. A spring four is fixed to the surface of the long plate, and the end of the spring four away from the long plate is fixed to the surface of the stabilizing plate. The end of the rack away from the movable block is fixed to the surface of the long plate. A through hole is opened on the surface of the threaded block, and the long plate passes through the through hole. A movable rod is hinged to the side of the clamping plate near the stabilizing frame. The end of the movable rod away from the clamping plate passes through the stabilizing frame. A sliding rod is hinged to the end of the movable rod away from the clamping plate. The sliding rod is slidably connected to the surface of the stabilizing frame. When the clamping plate is in contact with the surface of the container, the motor two continues to work, the clamping plate moves closer to the stabilizing frame, the movable rod flips, and drives the sliding rod to move upward. At this time, the top of the sliding rod abuts against the surface of the long plate, and the long plate drives the rack and movable block to move closer to the rotating rod.

[0010] Preferably, the groove is formed at the bottom of the fixing frame, and a screw is rotatably connected to the inner wall of the groove. A second motor is fixed to the surface of the fixing frame, and the output shaft of the second motor passes through the fixing frame. The screw passes through a threaded block, and the screw and the threaded block are threadedly connected. A stabilizing frame is fixed to the bottom of the threaded block, and a slider is fixed to the inner side of the stabilizing frame. The slider is slidably connected to the inner wall of the stabilizing groove. A base plate is fixed to the bottom of the stabilizing frame, and a clamping plate is slidably connected to the surface of the base plate. A first spring is fixed to the surface of the clamping plate, and the end of the first spring away from the clamping plate is fixed to the surface of the stabilizing frame. Through the transmission assembly, when the second motor is started, the screw rotates, and the threaded blocks move closer or further apart, so that the stabilizing frame, together with the clamping plate, can clamp or loosen the container.

[0011] Preferably, the transmission assembly includes a connecting groove, with a movable plate hinged to the inner wall of the connecting groove. A torsion spring is fixed to the surface of the movable plate, with one end of the torsion spring away from the movable plate fixed to the inner wall of the connecting groove. The output shaft of the second motor extends into the connecting groove, and a fixed plate is fixed to the surface of the output shaft of the second motor. The output shaft of the second motor drives the fixed plate to rotate synchronously. When the surface of the fixed plate contacts the surface of the movable plate, it drives the screw to rotate. When the screw can no longer rotate, the fixed plate continues to contact the surface of the movable plate, causing the movable plate to flip and the torsion spring to retract. When the fixed plate no longer contacts the surface of the movable plate, the torsion spring is released, allowing the movable plate to return to its original position, thus not affecting the normal operation of the second motor.

[0012] Preferably, a connecting frame is rotatably connected to the top of the fixed frame, and a motor is installed on the inner side of the connecting frame. The output shaft of the motor passes through the connecting frame and is fixed to the top of the fixed frame. By controlling the start of the motor, the fixed frame can be rotated, which facilitates the adjustment of the angle of the fixed frame.

[0013] Preferably, the screw is provided with two opposite threads, and when the screw rotates, the threaded blocks move closer or further apart synchronously.

[0014] Compared with the prior art, this utility model provides a highly stable container loading and unloading forklift device, which has the following advantages:

[0015] 1. This highly stable container loading and unloading forklift device, through its protective components, ensures that when the clamping plate is in contact with the container surface, motor two continues to operate. The clamping plate moves closer to the stabilizing frame, the movable rod flips, and the sliding rod moves upward to contact the surface of the long plate. The long plate drives the rack and movable block to move closer to the rotating rod. The rack synchronously drives the second locking tooth to rotate. Through the round rod, locking tooth one, and gear ring, each rack can move radially synchronously. The movable block enters the slot, and the inner wall of the slot abuts against the side of the movable block away from the inclined surface. The movable block limits the rotating rod, and gear one and gear two cannot continue to rotate. This prevents the screw from continuing to rotate, and the clamping plate cannot continue to clamp the container. This avoids excessive clamping force caused by not shutting off motor two in time, which could lead to container deformation or even damage.

[0016] 2. This highly stable container loading and unloading forklift device, through the set stabilizing components and transmission components, causes the screw to rotate when the motor rotates, and the threaded blocks to move closer or further apart. This allows the stabilizing frame to work with the clamping plates to clamp and fix or loosen the container. When clamping the container, it can improve the stability of container loading, unloading and forklift lifting.

[0017] 3. This highly stable container loading and unloading forklift device, through its transmission components, starts the second motor, causing the fixed plate to rotate synchronously. When the surface of the fixed plate contacts the surface of the movable plate, it drives the screw to rotate. When the screw can no longer rotate, the fixed plate continues to contact the surface of the movable plate, causing the movable plate to flip and the torsion spring to retract. When the fixed plate no longer contacts the surface of the movable plate, the torsion spring is released, allowing the movable plate to return to its original position. This ensures that the normal operation of the second motor is not affected and prevents the second motor from burning out. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0020] Figure 3 This is a front view structural diagram of the stabilizing component and the protective component of this utility model;

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the enlarged structure of A in the middle;

[0022] Figure 5 This is a schematic diagram of the internal structure of the protective component of this utility model;

[0023] Figure 6 This is a partial cross-sectional view of the protective component of this utility model;

[0024] Figure 7This is a schematic diagram of the internal structure of the transmission component and screw of this utility model.

[0025] In the diagram: 1. Fixed frame; 2. Connecting frame; 3. Motor 1; 4. Slide groove; 5. Stabilizing component; 50. Groove; 51. Motor 2; 52. Screw; 53. Threaded block; 54. Stabilizing frame; 55. Base plate; 56. Slider; 57. Clamping plate; 58. Spring 1; 6. Transmission component; 60. Connecting groove; 61. Movable plate; 62. Fixed plate; 63. Torsion spring; 7. Protective component; 70. Gear 1; 7 1. Gear II; 72. Rotating rod; 73. Stabilizing plate; 74. Fixed ring; 75. Cavity; 76. Gear ring; 77. Round rod; 78. Clamping tooth I; 700. Clamping tooth II; 701. Rack; 702. Clamping groove; 703. Movable groove; 704. Movable block; 705. Spring III; 79. Limiting component; 790. Long plate; 791. Spring IV; 792. Through hole; 793. Movable rod; 794. Slide rod. Detailed Implementation

[0026] like Figures 1-7 As shown, this utility model provides a technical solution: a highly stable container loading and unloading forklift device, including a fixed frame 1, a stabilizing groove 4 on the surface of the fixed frame 1, and a stabilizing component 5 on the surface of the fixed frame 1 to prevent container displacement. The stabilizing component 5 includes: a groove 50, a second motor 51, a screw 52, ​​a threaded block 53, a stabilizing frame 54, a base plate 55, a slider 56, a clamping plate 57, and a first spring 58. The surface of the fixed frame 1 is provided with a protective component 7 to prevent excessive clamping force from causing deformation of the container surface, and a transmission component 6 to prevent damage to the second motor 51. The protective component 7 includes: a first gear 70, a second gear 71, a rotating rod 72, a stabilizing plate 73, a fixing ring 74, a cavity 75, a toothed ring 76, a round rod 77, a first locking tooth 78, a second locking tooth 700, a rack 701, a slot 702, a movable slot 703, a movable block 704, and a third spring 705.

[0027] Gear 1 70 is rotatably connected to the inner wall of groove 50. Screw 52 passes through gear 1 70 and is fixedly connected to gear 1 70. Gear 2 71 is rotatably connected to the inner wall of groove 50. Gear 1 70 and gear 2 71 mesh. Rotating rod 72 is fixed to the surface of gear 2 71. The protective assembly 7 also includes a stabilizing plate 73, which is fixed to the inner wall of groove 50. A fixing ring 74 is fixed to the surface of stabilizing plate 73, and the fixing ring 74 is penetrated by rotating rod 72. Rotating rod 72 penetrates stabilizing plate 73. The fixed ring 74 has a cavity 75 inside. A toothed ring 76 is rotatably connected to the inner wall of the cavity 75. A round rod 77 is rotatably connected to the inner wall of the cavity 75. A first retaining tooth 78 and a second retaining tooth 700 are fixed to the surface of the round rod 77. A rack 701 is disposed inside the cavity 75. The rack 701 passes through the fixed ring 74 and is slidably connected to the fixed ring 74. The rack 701 meshes with the second retaining tooth 700, and the first retaining tooth 78 meshes with the toothed ring 76. The surface of the rack 701 has... There is a movable groove 703, and a movable block 704 is slidably connected to the inner wall of the movable groove 703. A spring 705 is fixed to the surface of the movable block 704. The end of the spring 705 away from the movable block 704 is fixed to the inner wall of the movable groove 703. The protective assembly 7 also includes a limiting member 79. The end of the movable block 704 away from the spring 705 is set as an inclined surface. The long plate 790 drives the rack 701 and the movable block 704 to move closer to the rotating rod 72. The rack 701 synchronously drives the second locking tooth 700 to rotate. Through the round rod 77 The locking teeth 78 and 76 enable the racks 701 to move radially synchronously. The movable block 704 enters the slot 702, and the inner wall of the slot 702 abuts against the side of the movable block 704 away from the inclined plane. The movable block 704 limits the rotating rod 72, and the gears 70 and 71 can no longer rotate. This prevents the screw 52 from rotating and the clamping plate 57 from clamping the container. This avoids excessive clamping force caused by not shutting off the motor 51 in time, which could lead to container deformation or even damage.

[0028] The limiting component 79 includes a long plate 790, which is slidably connected to the inner wall of the groove 50. A spring 791 is fixed to the surface of the long plate 790. The end of the spring 791 away from the long plate 790 is fixed to the surface of the stabilizing plate 73. The end of the rack 701 away from the movable block 704 is fixed to the surface of the long plate 790. A through hole 792 is opened on the surface of the threaded block 53, and the long plate 790 passes through the through hole 792. A movable rod 793 is hinged to the side of the clamping plate 57 near the stabilizing frame 54. The end of the clamping plate 57 passes through the stabilizer 54. The end of the movable rod 793 away from the clamping plate 57 is hinged to a slide rod 794. The slide rod 794 is slidably connected to the surface of the stabilizer 54. When the clamping plate 57 is in contact with the surface of the container, the motor 51 continues to work, the clamping plate 57 moves closer to the stabilizer 54, the movable rod 793 flips, and drives the slide rod 794 to move upward. At this time, the top of the slide rod 794 abuts against the surface of the long plate 790, and the long plate 790 drives the rack 701 and the movable block 704 to move closer to the rotating rod 72.

[0029] A groove 50 is formed at the bottom of the fixing frame 1. A screw 52 is rotatably connected to the inner wall of the groove 50. A second motor 51 is fixed to the surface of the fixing frame 1. The output shaft of the second motor 51 passes through the fixing frame 1. A threaded block 53 passes through the screw 52. The screw 52 and the threaded block 53 are threadedly connected. A stabilizing frame 54 is fixed to the bottom of the threaded block 53. A slider 56 is fixed to the inner side of the stabilizing frame 54. The slider 56 is slidably connected to the inner wall of the stabilizing groove 4. A base plate 55 is fixed to the bottom of the stabilizing frame 54. A clamping plate 57 is slidably connected to the surface of the clamping plate 57. A spring 58 is fixed to the surface of the clamping plate 57. The end of the spring 58 away from the clamping plate 57 is fixed to the surface of the stabilizer 54. The screw 52 is provided with two opposite threads. When the motor 51 rotates through the transmission assembly 6, the screw 52 rotates and the threaded blocks 53 move closer or further apart. This allows the stabilizer 54 to cooperate with the clamping plate 57 to clamp and fix or loosen the container. When clamping the container, the stability of the container during loading, unloading, and forklifting can be improved.

[0030] The transmission assembly 6 includes a connecting groove 60, with a movable plate 61 hinged to the inner wall of the connecting groove 60. A torsion spring 63 is fixed to the surface of the movable plate 61, with one end of the torsion spring 63 away from the movable plate 61 fixed to the inner wall of the connecting groove 60. The output shaft of the second motor 51 extends into the connecting groove 60, and a fixed plate 62 is fixed to the surface of the output shaft of the second motor 51. The output shaft of the second motor 51 drives the fixed plate 62 to rotate synchronously. When the surface of the fixed plate 62 contacts the surface of the movable plate 61, it drives the screw 52 to rotate. When the screw 52 can no longer rotate, the fixed plate 62 continues to contact the surface of the movable plate 61, causing the movable plate 61 to flip and the torsion spring 63 to retract. When the fixed plate 62 no longer contacts the surface of the movable plate 61, the torsion spring 63 is released, allowing the movable plate 61 to reset. This prevents the second motor 51 from burning out and ensures its normal operation.

[0031] A connecting frame 2 is rotatably connected to the top of the fixed frame 1. A motor 3 is installed on the inside of the connecting frame 2. The output shaft of the motor 3 passes through the connecting frame 2 and is fixed to the top of the fixed frame 1. By controlling the start of the motor 3, the fixed frame 1 can be rotated, which makes it easy to adjust the angle of the fixed frame 1.

[0032] In use, the connecting frame 2 is fixed to the equipment. When loading and unloading the container, the fixing frame 1 is moved to a suitable position, and the motor 2 51 is controlled to rotate forward. At this time, the output shaft of the motor 2 51 drives the fixing plate 62 to rotate synchronously. When the surface of the fixing plate 62 abuts against the surface of the movable plate 61, the screw 52 is driven to rotate. At this time, the threaded blocks 53 move closer to each other, so that the bottom plate 55 is located at the bottom of the container. At the same time, the clamping plate 57 is in contact with the surface of the container, so that the stabilizing frame 54 works with the clamping plate 57 to clamp and fix the container, improving the stability of the container when loading and unloading forklifts. When the clamping plate 57 is in contact with the surface of the container, the motor 2 51 continues to work. As plate 57 moves closer to stabilizer 54, spring 58 is compressed, and simultaneously movable rod 793 flips, causing slide rod 794 to move upward. At this point, the top of slide rod 794 abuts against the surface of long plate 790, and spring 791 is compressed. Simultaneously, long plate 790 drives rack 701 and movable block 704 to move closer to rotating rod 72. Rack 701 synchronously drives locking tooth 700 to rotate, causing round rod 77 to drive locking tooth 78 to rotate. At this time, gear ring 76 rotates synchronously, causing each rack 701 to move radially synchronously. When the surface of movable block 704 abuts against the surface of rotating rod 72, movable block 704 enters movable groove 703, and spring 705 is compressed. When movable block 704 reaches its position... When parallel to the slot 702, spring 3 705 is released, allowing movable block 704 to enter the slot 702. The inner wall of the slot 702 abuts against the side of movable block 704 away from the inclined plane. At this time, movable block 704 limits the rotating rod 72, preventing gear 1 70 and gear 2 71 from continuing to rotate. This prevents screw 52 from continuing to rotate, and clamping plate 57 from continuing to clamp the container. This avoids excessive clamping force caused by failure to shut off motor 2 51 in time, which could lead to container deformation or even damage. At this time, motor 2 51 continues to work, and fixed plate 62 continues to abut against the surface of movable plate 61. Movable plate 61 flips, and torsion spring 63 retracts. When fixed plate 62 is no longer in contact with movable plate 61... When the surfaces come into contact, the torsion spring 63 is released, which allows the movable plate 61 to return to its original position. This prevents the normal operation of the second motor 51 from being affected and avoids the possibility of the second motor 51 burning out. At this time, personnel can load, unload, and lift the container normally. When it is necessary to release the container, the second motor 51 is turned on to reverse. At this time, the screw 52 reverses, and through the gear 1 70 and the gear 2 71, the rotating rod 72 rotates synchronously. At this time, the inner wall of the slot 702 abuts against the inclined surface of the movable block 704, which allows the movable block 704 to enter the movable groove 703. This does not affect the normal reverse rotation of the rotating rod 72, so that the screw 52 can reverse normally, which can drive the stabilizer 54 and the clamp 57 to release the container.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A highly stable container loading and unloading forklift device, comprising a fixed frame (1), characterized in that: The surface of the fixing frame (1) is provided with a stabilizing groove (4), and the surface of the fixing frame (1) is provided with a stabilizing component (5) to prevent the container from shifting. The stabilizing component (5) includes: a groove (50), a second motor (51), a screw (52), a threaded block (53), a stabilizing frame (54), a base plate (55), a slider (56), a clamping plate (57), and a first spring (58). The surface of the fixing frame (1) is provided with a protective component (7) to prevent excessive clamping force from causing deformation of the container surface. The transmission assembly (6) to prevent damage to motor 2 (51) includes the following protective assembly (7): a gear 1 (70) rotatably connected to the inner wall of the groove (50), a screw (52) passing through the gear 1 (70) and fixedly connected to the gear 1 (70), a gear 2 (71) rotatably connected to the inner wall of the groove (50), the gear 1 (70) meshing with the gear 2 (71), and a rotating rod (72) fixed to the surface of the gear 2 (71).

2. The container loading and unloading forklift device with high stability according to claim 1, characterized in that: The protective assembly (7) further includes a stabilizing plate (73), which is fixed to the inner wall of the groove (50). A fixing ring (74) is fixed to the surface of the stabilizing plate (73), and the fixing ring (74) is penetrated by a rotating rod (72). The rotating rod (72) penetrates the stabilizing plate (73). A cavity (75) is provided inside the fixing ring (74). A toothed ring (76) is rotatably connected to the inner wall of the cavity (75). A round rod (77) is rotatably connected to the inner wall of the cavity (75). A locking tooth (78) is fixed to the surface of the round rod (77), and a locking tooth (700) is fixed to the surface of the round rod (77). A rack (701) is provided inside the cavity (75). A rack (701) passes through a fixed ring (74), and the rack (701) is slidably connected to the fixed ring (74). The rack (701) engages with a second locking tooth (700), and the first locking tooth (78) engages with a toothed ring (76). A movable groove (703) is provided on the surface of the rack (701). A movable block (704) is slidably connected to the inner wall of the movable groove (703). A spring (705) is fixed on the surface of the movable block (704). One end of the spring (705) away from the movable block (704) is fixed on the inner wall of the movable groove (703). The protective component (7) also includes a limiting member (79). The end of the movable block (704) away from the spring (705) is set as an inclined surface.

3. The container loading and unloading forklift device with high stability according to claim 2, characterized in that: The limiting member (79) includes a long plate (790) that is slidably connected to the inner wall of the groove (50). A spring four (791) is fixed to the surface of the long plate (790). One end of the spring four (791) away from the long plate (790) is fixed to the surface of the stabilizing plate (73). One end of the rack (701) away from the movable block (704) is fixed to the surface of the long plate (790). The surface of the threaded block (53) A through hole (792) is provided on the surface, and the long plate (790) passes through the through hole (792). A movable rod (793) is hinged to the side of the clamping plate (57) near the stabilizer (54). The end of the movable rod (793) away from the clamping plate (57) passes through the stabilizer (54). A sliding rod (794) is hinged to the end of the movable rod (793) away from the clamping plate (57). The sliding rod (794) is slidably connected to the surface of the stabilizer (54).

4. The container loading and unloading forklift device with high stability according to claim 1, characterized in that: The groove (50) is formed at the bottom of the fixed frame (1). A screw (52) is rotatably connected to the inner wall of the groove (50). A motor (51) is fixed to the surface of the fixed frame (1). The output shaft of the motor (51) passes through the fixed frame (1). A threaded block (53) passes through the screw (52). The screw (52) and the threaded block (53) are threadedly connected. A stabilizing frame (54) is fixed to the bottom of the threaded block (53). A slider (56) is fixed to the inside of the stabilizing frame (54). The slider (56) is slidably connected to the inner wall of the stabilizing groove (4). A base plate (55) is fixed to the bottom of the stabilizing frame (54). A clamping plate (57) is slidably connected to the surface of the base plate (55). A spring (58) is fixed to the surface of the clamping plate (57). The end of the spring (58) away from the clamping plate (57) is fixed to the surface of the stabilizing frame (54).

5. A highly stable container loading and unloading forklift device according to claim 1, characterized in that: The transmission assembly (6) includes a connecting groove (60), the inner wall of which is hinged with a movable plate (61), and a torsion spring (63) is fixed on the surface of the movable plate (61). The end of the torsion spring (63) away from the movable plate (61) is fixed on the inner wall of the connecting groove (60). The output shaft of the second motor (51) extends into the connecting groove (60), and a fixing plate (62) is fixed on the surface of the output shaft of the second motor (51).

6. The container loading and unloading forklift device with high stability according to claim 1, characterized in that: The top of the fixed frame (1) is rotatably connected to the connecting frame (2), and the inner side of the connecting frame (2) is equipped with a motor (3). The output shaft of the motor (3) passes through the connecting frame (2), and the output shaft of the motor (3) is fixed to the top of the fixed frame (1).

7. A container loading and unloading forklift device with high stability according to claim 1, characterized in that: The screw (52) is provided with two opposite threads.

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