Frame type loading and unloading transportation frame for port operation

Abstract

The utility model provides a frame type loading and unloading transportation frame for port operation, which comprises an adjustable transportation underframe, a driving part is arranged outside the adjustable transportation underframe, two moving wheels, fork arm frames and shock absorption seats are arranged at the bottom of the adjustable transportation underframe, the two moving wheels are arranged in mirror symmetry, and hanging rings are fixedly arranged above two ends of each fork arm frame; the side frames are rotationally installed at the two ends of the upper portion of the adjustable transportation bottom frame correspondingly, and the limiting pins penetrate through the adjustable transportation bottom frame and the side frames. According to the transport frame, the fixed underframe is combined with the movable underframe which is slidably connected with the fixed underframe, so that the length is flexibly adjusted, goods of various sizes are perfectly matched, stable transport is ensured, and potential safety hazards are effectively avoided. Motor or hydraulic drive is adopted, efficient transmission of the ball screw is combined, the length adjusting process is simplified, meanwhile, it is ensured that the movable bottom frame moves stably and rapidly, and the working efficiency is greatly improved. By means of the design, the applicability of the transportation frame is enhanced, and the smoothness and safety of port loading and unloading operation are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of port transport rack technology, and in particular relates to a frame-type loading and unloading transport rack for port operations. Background Technology

[0002] Loading and unloading racks, as key facilities for logistics turnover, play a vital role in port operations. Among them, frame-type loading and unloading racks are particularly common and widely used in port cargo loading, unloading, and transportation operations. For example, Chinese utility model patents CN 221795299 U and CN 218057592 U respectively describe two frame-type loading and unloading rack designs specifically for port operations. However, these two existing devices share a common limitation: a lack of adjustability, allowing them to only adapt to and transport goods of specific sizes.

[0003] This limitation significantly reduces their practicality, especially when handling large goods. If the length of the goods exceeds the length range of the transport rack, it cannot effectively support them; conversely, if the goods are short, although they can be placed on the transport rack, the supports on both sides of the transport rack cannot be adjusted according to the size of the goods, making it difficult to secure the goods firmly. This affects the stability of the goods stacking and increases safety hazards during transportation.

[0004] Therefore, it is essential to invent a frame-type loading and unloading transport rack for port operations. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a frame-type loading and unloading transport frame for port operations, including an adjustable transport base, a drive component, movable wheels, fork arm frames, lifting rings, side frames, limiting pins, and shock-absorbing seats. The drive component is installed on the outside of the adjustable transport base, and two mirror-symmetrically arranged movable wheels, fork arm frames, and shock-absorbing seats are installed on its bottom. Lifting rings are fixedly installed on the upper ends of each fork arm frame. The side frames are rotatably installed on the upper ends of the adjustable transport base, and the limiting pins pass through the adjustable transport base and the side frames to restrict the side frames.

[0006] Preferably, the adjustable transport base includes a fixed base, a movable base, side frame seats, and mounting holes. A drive component is fixedly installed on the outside of the fixed base, and shock-absorbing seats are fixedly installed at the two lower corners of the fixed base. Movable wheels are fixedly installed at the two lower corners of the movable base. The fixed base and the movable base are slidably installed together. A single fork arm frame is installed below both the fixed base and the movable base, and side frame seats are fixedly installed at the two upper corners of both. The side frame seats are rotatably connected to the lower end of the side frame. A limiting pin passes through the side frame seats and the side frame to restrict the side frame. Numerous mounting holes are provided on the top of the movable base.

[0007] Preferably, the leveling plate is fixedly installed on the movable base frame by bolts in conjunction with the mounting holes, and the upper surface of the leveling plate is flush with the upper surface of the fixed base frame.

[0008] Preferably, the movable base frame slides into the fixed base frame, and the two are slidably connected. The fixed base frame and the movable base frame have the same structure, both being "E"-shaped structures. The fork arm frame installed below the movable base frame is fixedly installed by bolts.

[0009] Preferably, the ball screw rotatably mounted inside the fixed base extends into the movable base. One end of the ball screw rotatably passes through the fixed base and is fixed to the output end of the drive component mounted outside the fixed base. The other end of the ball screw is provided with a limit plate.

[0010] Preferably, the ball screw is equipped with a transmission slider via a ball nut. The transmission slider is fixedly connected to the inside of the movable base and is used to drive the movable base to perform linear motion.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model provides a frame-type loading and unloading transport rack for port operations, which achieves significant benefits due to its height adjustability and stable design. Through the combination of an adjustable transport base—including a fixed base and a slidingly connected movable base—the transport rack can flexibly adjust its length to perfectly adapt to goods of different sizes. Whether the goods are extra-long or short, stable transportation is ensured, effectively avoiding safety hazards caused by size mismatches. Simultaneously, the efficient transmission mechanism of the drive components (motor or hydraulic device) and ball screws not only simplifies the operation process of adjusting the transport rack length but also enables smooth and rapid movement of the movable base, greatly improving work efficiency. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a structural schematic diagram of the adjustable transport chassis of this utility model.

[0015] Figure 3 This is a partial cross-sectional structural diagram of the adjustable transport base frame of this utility model.

[0016] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure at point A.

[0017] In the picture:

[0018] Adjustable transport base frame 1, fixed base frame 11, movable base frame 12, side frame seat 13, mounting hole 14, ball screw 15, transmission slider 16, limit plate 17, drive component 2, movable wheel 3, fork arm frame 4, lifting ring 5, side frame 6, limit pin 7, shock absorber seat 8, leveling plate 9. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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 should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 4 As shown:

[0022] This utility model provides a frame-type loading and unloading transport frame for port operations, including an adjustable transport base frame 1, a drive component 2, moving wheels 3, fork arm frames 4, lifting rings 5, side frames 6, limiting pins 7, and shock-absorbing seats 8. The adjustable transport base frame 1 is externally mounted with the drive component 2, and has two mirror-symmetrically arranged moving wheels 3, fork arm frames 4, and shock-absorbing seats 8 mounted on its bottom. Lifting rings 5 ​​are fixedly installed above both ends of each fork arm frame 4. The side frames 6 are rotatably mounted at both ends of the adjustable transport base frame 1. The limiting pins 7 pass through the adjustable transport base frame 1 and the side frames 6 to restrict the side frames 6.

[0023] Furthermore, the adjustable transport frame 1 includes a fixed base 11, a movable base 12, side support seats 13, and mounting holes 14. A drive component 2 is fixedly mounted on the outside of the fixed base 11 to drive the sliding of the movable base 12. Shock-absorbing seats 8 are fixedly mounted at the lower two corners of the fixed base 11 to enhance the stability and shock absorption performance of the entire transport frame. Casters 3 are fixedly mounted at the lower two corners of the movable base 12, allowing the entire transport frame to be easily adjusted and moved.

[0024] Furthermore, the fixed base frame 11 and the movable base frame 12 are slidably mounted together, a design that allows for flexible adjustment of the transport frame's length. Below both the fixed base frame 11 and the movable base frame 12, a single fork arm frame 4 is installed for inserting the forklift's forks. Simultaneously, side frame seats 13 are fixedly installed at the upper corners of both, rotatably connected to the lower end of the side frame 6 and restrained by limit pins 7 to ensure the stability of the side frame 6. When not in use, the limit pins 7 can be removed to release the restraints on the side frame 6, allowing the two side frames 6 to fold.

[0025] Furthermore, multiple mounting holes 14 are provided above the movable base frame 12. These mounting holes 14 are used to fix the leveling plate 9 onto the movable base frame 12 with bolts. The upper surface of the leveling plate 9 is flush with the upper surface of the fixed base frame 11, which ensures that the surface of the entire transport frame remains flat after the length of the transport frame is adjusted.

[0026] Furthermore, the movable base frame 12 slides into the fixed base frame 11, and the two are slidably connected. The fixed base frame 11 and the movable base frame 12 have the same structure, both being "E"-shaped. The fork arm frame 4 under the movable base frame 12 is fixedly installed by bolts. After the entire device is adjusted, the fork arm frame 4 under the movable base frame 12 and the fork arm frame 4 on the fixed base frame 11 still maintain a mirror symmetrical relationship to ensure the stable load-bearing capacity of the forklift when transporting goods.

[0027] Furthermore, a ball screw 15 is rotatably mounted inside the fixed base 11, extending into the movable base 12. One end of the ball screw 15 rotatably passes through the fixed base 11 and is fixed to the output end of the drive component 2 mounted externally to the fixed base 11. A limit plate 17 is provided at the other end of the ball screw 15 to prevent excessive movement. A transmission slider 16 is mounted on the ball screw 15 via a ball nut, and the transmission slider 16 is fixedly connected to the inside of the movable base 12. When the drive component 2 operates, the ball screw 15 drives the transmission slider 16 to move, thereby driving the movable base 12 to perform linear motion, achieving adjustment of the transport frame length.

[0028] The working principle is as follows: When the overall length needs to be adjusted, the following preparatory work is first performed: the leveling plate 9 on the movable base 12 is removed to prevent the leveling plate 9 from interfering with the normal sliding operation during the adjustment process. This step ensures that the movable base 12 can slide smoothly within the fixed base 11 without any obstruction.

[0029] Next, drive component 2 is activated. Drive component 2 can be a motor device that provides the power to drive the sliding base 12. When drive component 2 is activated, it drives the ball screw 15 fixed to its output end to start rotating. The rotation of the ball screw 15 converts the rotational motion into linear motion through the interaction between the ball nut and the transmission slider 16.

[0030] The transmission slider 16 is fixedly connected to the movable base 12. Therefore, when the transmission slider 16 moves, it drives the movable base 12 to slide together within the fixed base 11. This sliding is smooth and controllable because the efficient transmission mechanism of the ball screw 15 and the ball nut ensures the accuracy and stability of the movement.

[0031] As the movable base 12 slides, the length of the entire transport frame will increase or decrease accordingly. Once the transport frame length is adjusted to the desired position, the drive unit 2 is turned off, and the rotation of the ball screw 15 is stopped. At this time, the side frame 6 can be fixed to the adjustable transport base 1 by the limit pin 7 to ensure the stability of the side frame 6. When the side frame 6 is not in use, the limit pin 7 can be pulled out to release the restriction on the side frame 6, allowing it to be folded up for convenient transportation and storage.

[0032] Finally, if it is necessary to level the surface of the transport frame, the leveling plate 9 can be re-fixed to the movable base frame 12 with bolts. The upper surface of the leveling plate 9 is flush with the upper surface of the fixed base frame 11, which ensures that the entire surface of the transport frame remains flat after length adjustment, providing a strong guarantee for the stable bearing of goods. In addition, observe whether the fork arm frame 4 on the movable base frame 12 and the fork arm frame 4 on the fixed base frame 11 still maintain a mirror symmetry relationship. If not, remove the fork arm frame 4 on the movable base frame 12 and then install it in a mirror symmetric position with the fork arm frame 4 on the fixed base frame 11 to ensure that the forklift fork can be inserted into the fork arm frame 4 of both the fixed base frame 11 and the movable base frame 12 at the same time.

[0033] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A frame-type loading and unloading transport rack for port operations, characterized in that, The adjustable transport base includes an adjustable transport frame (1), a drive unit (2), casters (3), fork arm frames (4), lifting rings (5), side frames (6), limiting pins (7), and shock absorbers (8). The adjustable transport base (1) is externally mounted with the drive unit (2), and has two mirror-symmetrically arranged casters (3), fork arm frames (4), and shock absorbers (8) mounted on its bottom. Lifting rings (5) are fixedly mounted on both ends of each fork arm frame (4). The side frames (6) are rotatably mounted on both ends of the adjustable transport base (1). The limiting pins (7) pass through the adjustable transport base (1) and the side frames (6) to restrict the side frames (6).

2. The frame-type loading and unloading transport rack for port operations as described in claim 1, characterized in that: The adjustable transport base frame (1) includes a fixed base frame (11), a movable base frame (12), a side frame seat (13), and mounting holes (14). A drive component (2) is fixedly installed on the outside of the fixed base frame (11), and shock absorber seats (8) are fixedly installed on the two lower corners of the fixed base frame (11). Movable wheels (3) are fixedly installed on the two lower corners of the movable base frame (12). The fixed base frame (11) and the movable base frame (12) are slidably installed together. A single fork arm frame (4) is installed below both the fixed base frame (11) and the movable base frame (12), and a side frame seat (13) is fixedly installed on the two upper corners of both. The side frame seat (13) is rotatably connected to the lower end of the side frame (6). A limiting pin (7) passes through the side frame seat (13) and the side frame (6) to restrict the side frame (6). Numerous mounting holes (14) are opened on the upper part of the movable base frame (12).

3. A frame-type loading and unloading transport rack for port operations as described in claim 2, characterized in that: The leveling plate (9) is fixedly installed on the movable base frame (12) by bolts in conjunction with the mounting holes (14), and the upper surface of the leveling plate (9) is flush with the upper surface of the fixed base frame (11).

4. A frame-type loading and unloading transport rack for port operations as described in claim 3, characterized in that: The movable base frame (12) slides into the fixed base frame (11), and the two are slidably connected. The fixed base frame (11) and the movable base frame (12) have the same structure, both of which are "E" shaped structures. The fork arm frame (4) installed below the movable base frame (12) is fixedly installed by bolts.

5. A frame-type loading and unloading transport rack for port operations as described in claim 4, characterized in that: The ball screw (15) rotatably mounted inside the fixed base (11) extends into the movable base (12). One end of the ball screw (15) rotatably passes through the fixed base (11) and is fixed to the output end of the drive component (2) mounted outside the fixed base (11). The other end of the ball screw (15) is provided with a limit plate (17).

6. A frame-type loading and unloading transport rack for port operations as described in claim 5, characterized in that: The ball screw (15) is equipped with a transmission slider (16) via a ball nut. The transmission slider (16) is fixedly connected to the inside of the movable base (12). The transmission slider (16) is used to drive the movable base (12) to make linear motion.

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