Container bottom dragging pry structure

Abstract

The utility model relates to the technical field of containers, in particular to a container bottom dragging pry structure which comprises a dragging pry cross beam, a first dragging pry longitudinal beam is fixed to the end side of the dragging pry cross beam, a second dragging pry longitudinal beam is connected into the first dragging pry longitudinal beam in a sliding mode, and an extending cross beam is connected into the dragging pry cross beam in a sliding mode. A bearing plate is fixed to the top surface of the extending cross beam, a crow bar frame is fixed to the end side of the dragging and prying cross beam, rotating shafts are rotationally connected to the two sides of the dragging and prying cross beam, connecting rods are fixedly connected to the rotating shafts in a sleeving mode, connecting shafts are fixed to the middles of the connecting rods, and rolling wheels are rotationally connected to the connecting shafts in a sleeving mode. The area of the whole dragging pry can be adjusted so that the dragging pry can contain containers of different specifications, the application range of the dragging pry is greatly widened, the idler wheels capable of being adjusted to rotate are arranged, the idler wheels can be adjusted to be attached to the ground to achieve rapid movement when the dragging pry is pulled, force needed by transportation is greatly saved, and using flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and in particular to a container bottom skid structure. Background Technology

[0002] A shipping container is a large cargo container with a certain strength, rigidity, and specifications, specifically designed for repeated use. Using shipping containers for cargo transport allows goods to be loaded directly at the shipper's warehouse and unloaded at the consignee's warehouse. When changing vehicles or ships en route, there is no need to remove the goods from the container for repackaging.

[0003] Containers are widely used for various special purposes due to their high transportation safety, ease of movement and management. Because of their large size, containers are inconvenient to transport. Therefore, a skid is installed at the bottom of the container so that it can be connected to a pry bar or wire rope to facilitate dragging by workers.

[0004] Most skid structures on the market are currently integrated, which cannot be adjusted according to the size of the container during use. This makes it difficult to support and drag some containers smoothly, increasing the limitations of use. In addition, skids are not easy to drag, reducing the flexibility of use. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art that make it inconvenient to adjust the support area of ​​the skid, which increases the limitation of use and makes it inconvenient to move, and to propose a container bottom skid structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A container bottom skid structure includes a skid crossbeam, a first skid longitudinal beam fixed to one end of the skid crossbeam, a second skid longitudinal beam slidably connected inside the first skid longitudinal beam, an extension crossbeam slidably connected inside the skid crossbeam, a support plate fixed to the top surface of the extension crossbeam, a pry bar frame fixed to one end of the skid crossbeam, and rotating shafts rotatably connected to both sides of the skid crossbeam. A connecting rod is fixedly sleeved on the rotating shaft, a connecting shaft is fixedly fixed in the middle of the connecting rod, and a roller is rotatably sleeved on the connecting shaft.

[0008] Also includes:

[0009] Fasteners, the fasteners being used to reinforce the second longitudinal beam of the skid and the extension crossbeam;

[0010] A rotating component, which drives the rotating shaft to rotate.

[0011] Preferably, two symmetrically arranged skid crossbeams are provided, and the two non-adjacent ends of the first skid longitudinal beam are respectively fixedly connected to the two skid crossbeams. The interiors of both the skid crossbeams and the first skid longitudinal beam are hollow.

[0012] Preferably, the fastener comprises:

[0013] A through hole is provided on the skid crossbeam;

[0014] A screw hole is formed on the first longitudinal beam of the skid;

[0015] An insertion hole is provided on the second longitudinal beam of the skid;

[0016] Mounting holes are provided on the extension crossbeam.

[0017] Preferably, the fastener further includes:

[0018] The bolts are provided in two sets, one set of bolts is inserted into the through hole and the mounting hole, and the other set of bolts is inserted into the screw hole and the insertion hole;

[0019] A nut, which is threaded onto the bolt.

[0020] Preferably, the number of through holes corresponding to the number of extended crossbeams is two.

[0021] Preferably, the rotating component includes:

[0022] A fixing plate, which is fixed to the pry bar frame;

[0023] Rotating rod, which is rotatably connected to the fixed plate;

[0024] The worm gear is fixed to the rotating rod;

[0025] A worm gear, which is fixed to the rotating shaft;

[0026] A support shaft is fixed to the pry bar frame, and the worm gear is rotatably connected to the support shaft.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. This utility model allows for the adjustment of the entire skid area by manually pushing the second longitudinal beam and the extension crossbeam of the skid to a suitable length, and then fastening them with fasteners. This enables the skid to accommodate containers of different sizes, greatly expanding its applicability.

[0029] 2. This utility model uses a rotating rod to drive the external worm gear to rotate together, which meshes with the worm wheel. After the worm wheel is subjected to force, it rotates around the support shaft, and then drives the roller to rotate close to the ground through the middle rotating shaft and connecting rod mechanism. This allows the sled to move quickly through the roller when pulling, which greatly saves the force required for transportation and improves the flexibility of use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a container bottom skid structure proposed in this utility model.

[0031] Figure 2 This is a schematic diagram of the connection and installation structure of the skid crossbeam and the first longitudinal beam of the skid in a container bottom skid structure proposed in this utility model.

[0032] Figure 3 This is a schematic diagram of the first longitudinal beam of the skid, the second longitudinal beam of the skid, and the fastener structure of a container bottom skid proposed in this utility model.

[0033] Figure 4 This is a schematic diagram of the rotating component structure of a container bottom skid structure proposed in this utility model.

[0034] In the picture:

[0035] 1. Crossbeam of the skid; 101. Through hole; 2. First longitudinal beam of the skid; 21. Screw hole; 3. Second longitudinal beam of the skid; 31. Insertion hole; 32. Bolt; 33. Nut; 4. Extension beam; 41. Mounting hole; 5. Support plate; 6. Skid frame; 7. Rotating shaft; 71. Fixing plate; 72. Rotating rod; 73. Worm gear; 74. Worm wheel; 75. Support shaft; 8. Connecting rod; 9. Connecting shaft; 10. Roller. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] Reference Figures 1-4 A container bottom skid structure includes a skid beam 1, a first skid longitudinal beam 2 fixed to one end of the skid beam 1, a second skid longitudinal beam 3 slidably connected inside the first skid longitudinal beam 2, an extension beam 4 slidably connected inside the skid beam 1, a support plate 5 fixed to the top surface of the extension beam 4, and a pry bar frame 6 fixed to one end of the skid beam 1 for installing a pry bar or wire rope when towing is required. Rotary shafts 7 are rotatably connected to both sides of the skid beam 1, connecting rods 8 are fixedly sleeved on the rotating shafts 7, a connecting shaft 9 is fixed in the middle of the connecting rods 8, and rollers 10 are rotatably sleeved on the connecting shaft 9.

[0038] A container bottom skid structure also includes fasteners and rotating components. The fasteners are used to reinforce the second longitudinal beam 3 and the extension crossbeam 4 of the skid, and the rotating components are used to drive the rotating shaft 7 to rotate.

[0039] Furthermore, two symmetrical crossbeams 1 are provided for the skid. The two non-adjacent ends of the first longitudinal beam 2 are fixedly connected to the two crossbeams 1 respectively. The crossbeams 1 span across both sides of the skid and form a stable frame structure with the first longitudinal beams. Both the crossbeams 1 and the first longitudinal beams 2 are hollow inside. This design can reduce the weight of the entire skid, making it lighter, and can also increase the strength of the structure because the hollow structure can more effectively distribute stress, and the hollow design can accommodate the extension crossbeam 4 and the telescopic adjustment of the second longitudinal beam 3.

[0040] Furthermore, the fastener includes a through hole 101, a screw hole 21, and a mounting hole 41. The through hole 101 is formed on the skid crossbeam 1, the screw hole 21 is formed on the first longitudinal beam 2 of the skid, the insertion hole 31 is formed on the second longitudinal beam 3 of the skid, and the mounting hole 41 is formed on the extension crossbeam 4.

[0041] Furthermore, the fasteners also include bolts 32 and nuts 33. Two sets of bolts 32 are provided: one set is inserted into the through hole 101 and the mounting hole 41, and the other set is inserted into the threaded hole 21 and the insertion hole 31. Nuts 33 are threaded onto the bolts 32. The nuts 33 cooperate with the bolts 32, providing sufficient clamping force through tightening to ensure a stable connection between the various components of the skid.

[0042] Furthermore, there are two through holes 101 corresponding to the number of extension beams 4. As the main component of the fastener, the fastening connection between the various components of the skid is achieved by passing through different holes and engaging with nuts 33.

[0043] Furthermore, the rotating component includes a fixed plate 71, a rotating rod 72, a worm gear 73, a worm wheel 74, and a support shaft 75. The fixed plate 71 is fixed to the pry bar frame 6, the rotating rod 72 is rotatably connected to the fixed plate 71, the worm gear 73 is fixed to the rotating rod 72, the worm wheel 74 is fixed to the rotating shaft 7, and the support shaft 75 is fixed to the pry bar frame 6. The worm wheel 74 is rotatably connected to the support shaft 75, which provides support for the worm wheel 74 and allows it to rotate freely. Being fixed to the pry bar frame 6 ensures the stability and rotation of the worm wheel 74. Moreover, the worm wheel 74 and worm gear 73 have self-locking properties, so that they will not rotate during movement, thus affecting the stability of use.

[0044] It should be noted that when there is no need to drag, the roller 10 can be driven to rotate and lift off the ground by the rotating component, so as to avoid affecting the stability when placing the container.

[0045] The functional principle of this utility model can be explained through the following operation methods:

[0046] First, the longitudinal and transverse spacing of the skid needs to be adjusted. Drag the second longitudinal beam of the skid so that it slides smoothly within the first longitudinal beam of the skid until the desired length is reached. At this point, pass the bolt 32 through the screw hole 21 and insert it into the insertion hole 31 in the second longitudinal beam, then through the first longitudinal beam. Next, install the nut 33 on the bolt 32 and rotate it so that it moves forward along the thread of the bolt 32 until the nut 33 fits tightly against the side wall of the second longitudinal beam, thus completing the adjustment of the longitudinal spacing. Then, pull the extension beam 4 outward so that it slides within the crossbeam of the skid to the required height. Then, pass the bolt 32 through the through hole 101 and through the mounting hole 41 on the crossbeam 1 of the skid until it is pierced. Next, install the nut 33 on the bolt 32 and rotate it until the bolt 32 fits tightly against the crossbeam 1 of the skid, thus completing the adjustment of the entire skid area, enabling it to accommodate containers of different sizes and greatly expanding its application range.

[0047] After adjustment, the container is placed on the support plate 5 for use. When the container needs to be transported, the wire rope is threaded through the pry bar frame 6, and then the rotating rod 72 is placed inside the fixed plate 71 and rotated. When the rotating rod 72 rotates, the worm gear 73 outside it rotates and meshes with the worm wheel 74. The worm wheel 74 is subjected to force and rotates around the support shaft 75, so that the rotating shaft 7 in the middle drives the roller 10 installed through the connecting rod 8 to rotate and stick to the ground. When pulled, it moves through the roller 10, which makes it quick to move and saves transportation force.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A container floor dolly construction comprising a dolly beam (1), characterized in that, The first longitudinal beam (2) of the drag beam (1) is fixed to the end side. The second longitudinal beam (3) of the drag beam (2) is slidably connected inside the first longitudinal beam (2). The extension beam (4) of the drag beam (1) is slidably connected inside the drag beam (1). The top surface of the extension beam (4) is fixed with a support plate (5). The end side of the drag beam (1) is fixed with a pry bar frame (6). The two sides of the drag beam (1) are rotatably connected with a rotating shaft (7). A connecting rod (8) is fixedly sleeved on the rotating shaft (7). A connecting shaft (9) is fixed in the middle of the connecting rod (8). A roller (10) is rotatably sleeved on the connecting shaft (9). Also includes: Fasteners for reinforcing the second longitudinal beam (3) of the skid and the extension crossbeam (4). A rotating component is used to drive the rotating shaft (7) to rotate.

2. A container floor dolly structure according to claim 1, wherein Two symmetrically arranged drag beams (1) are provided. The two ends of the drag beam (2) that are not adjacent to the drag beam (2) are respectively fixedly connected to the two drag beams (1). The interior of the drag beam (1) and the drag beam (2) are both hollow.

3. The container floor dolly structure according to claim 1, wherein The fasteners include: A through hole (101) is provided on the skid beam (1); Screw hole (21), said screw hole (21) is formed on the first longitudinal beam (2) of the skid; Insertion hole (31), said insertion hole (31) is provided on the second longitudinal beam (3) of the skid; Mounting hole (41) is formed on the extension beam (4).

4. A container floor dolly structure according to claim 3, wherein The fastener also includes: Bolt (32), the bolt (32) is provided in two sets, one set of the bolt (32) is inserted into the through hole (101) and the mounting hole (41), and the other set of the bolt (32) is inserted into the screw hole (21) and the insertion hole (31); Nut (33), which is threaded onto bolt (32).

5. A container floor dolly structure according to claim 4, wherein The number of through holes (101) corresponding to the extension beams (4) is set to two.

6. The container floor dolly structure according to claim 1, wherein The rotating component includes: A fixing plate (71) is fixed to the pry bar frame (6); Rotating rod (72), which is rotatably connected to fixed plate (71); Worm (73), the worm (73) being fixed to the rotating rod (72); Worm gear (74), the worm gear (74) is fixed on the rotating shaft (7); Support shaft (75), which is fixed on the pry bar frame (6), and worm gear (74) is rotatably connected to support shaft (75).

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