A protective frame for fertilizer ton containers

Abstract

This utility model discloses a protective frame for fertilizer ton containers, including a square frame with a pad at the bottom and a detachable crossbar at the top. Moving mechanisms are located at the four corners of the bottom of the frame. Each moving mechanism includes a connecting column, a connecting plate, a limiting plate, a rolling ball, and an adjusting screw. The connecting column, connecting plate, and limiting plate are connected sequentially from top to bottom. The adjusting screw is threaded onto the connecting plate. The connecting plate has a cavity for accommodating the rolling ball, and the limiting plate has an arc-shaped through hole with an arc-shaped sidewall. When the rolling ball falls from the cavity into the arc-shaped through hole, it is stuck in the through hole, with its lower part positioned below the limiting plate. By rotating the adjusting screw, part of the rolling ball's spherical surface can be pushed out of the arc-shaped through hole. Rotating the adjusting screw upwards along the thread allows the rolling ball to be pressed back into the limiting plate under the weight of the ton container. This facilitates the movement of the ton container without affecting its storage, stacking, and transportation.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer storage technology, specifically a protective frame for fertilizer ton containers. Background Technology

[0002] When transporting liquid fertilizers or their raw materials, the liquid fertilizers or raw materials are usually stored in tonnes and then transported by truck. However, tonnes are mainly made of plastic materials such as high-density polyethylene (HDPE) and polypropylene (PP). When stacked or handled before transportation, they are easily squeezed or bumped, which can cause them to break. Therefore, tonnes are usually placed in protective frames before handling. However, because tonnes are quite heavy when full, they are not convenient to handle or move.

[0003] Chinese utility model patent CN220010761U discloses a ton container that is easy to fill with liquid. The bottom of its protective frame is equipped with wheels, which achieve the effect of saving effort during transportation. However, the wheels at the bottom cannot be retracted. When the ton containers are stacked for transportation, the wheels interfere with other ton containers. The wheels need to be removed before stacking. Moreover, if the wheel locking fails when the ton containers are stored for a long time, the rolling of the wheels may cause an accident. Utility Model Content

[0004] The purpose of this utility model is to provide a protective frame for fertilizer ton containers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective frame for fertilizer ton containers, comprising a square frame, with a pad covering the entire bottom surface of the frame, multiple detachable crossbars on the top of the frame, and moving mechanisms at the four corners of the bottom of the frame, with the outer edges of the moving mechanisms located inside the frame; the moving mechanism includes a connecting column, a connecting plate, a limiting plate, a rolling ball, and an adjusting screw, one end of the connecting column being fixedly connected to the connecting plate, and the other end of the connecting column being fixedly connected to the bottom of the pad, the top of the connecting plate having a vertical threaded hole matching the thread of the adjusting screw, and the adjusting screw passing through... The ball is threaded into the threaded hole of the connecting plate, and the connecting plate has a cavity for accommodating the rolling ball. When the rolling ball is in the cavity, the axis of the adjusting screw is vertically aligned with the center of the rolling ball. The limiting plate is fixedly connected to the bottom of the connecting plate. The limiting plate has an arc-shaped through hole with an arc-shaped sidewall. The top diameter of the arc-shaped through hole is larger than the diameter of the rolling ball, and the bottom diameter is smaller than the diameter of the rolling ball. The axis of the arc-shaped through hole coincides with the axis of the vertical threaded hole of the connecting plate. When the rolling ball falls from the cavity into the arc-shaped through hole, the rolling ball is stuck in the arc-shaped through hole and the lower part of the rolling ball is below the limiting plate.

[0006] Furthermore, the connecting plate and the limiting plate are square, and after the connecting plate and the limiting plate are connected, the side walls of the connecting plate and the limiting plate are vertically aligned, and the two right-angled sides of the connecting plate and the limiting plate are tangent to the inner side of the frame. The top surface of the crossbar is lower than the top surface of the frame, and at least one crossbar is provided directly above the top surface of each moving mechanism. With the above-mentioned structure of the connecting plate and the limiting plate and the position of the crossbar, when the ton barrel frames are stacked, the bottom of the limiting plate will press on the crossbar to form support, and the two right-angled side walls of the limiting plate will be engaged with the inner side of the frame to form a limit, thereby improving the stability of the frame stacking.

[0007] Furthermore, four connecting columns are provided, with one end of each column connected to one of the four corners of the top surface of the connecting plate. The vertical threaded hole is located at the center of the top surface of the connecting plate. By connecting the four corner columns and placing the vertical threaded hole at the center, the bottom spherical surface of the corresponding rolling ball will also be located at the center of the limiting plate when it is pushed out of the arc-shaped through hole by the adjusting screw, thereby improving the stability of the moving mechanism support.

[0008] Furthermore, a locking nut is threadedly connected to the adjusting screw; the limiting screw can be locked by tightening the locking nut to further prevent the locking screw from loosening.

[0009] Furthermore, rubber pads are provided on the inner side of the frame and above the pad plate to protect the ton container.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention features a movable structure. When the ton container needs to be moved, rotating the adjusting screw pushes part of the spherical surface of the rolling ball out of the arc-shaped through hole, allowing the ton container to move by rolling the ball. When the ton container is stationary or needs to be stacked for transport, rotating the adjusting screw upwards along the thread will cause the rolling ball to be pressed back into the limiting plate under the weight of the ton container. The plane of the limiting plate directly contacts the ground or the top surface of other ton container protective frames, preventing movement or interference with the stacking of ton containers. Furthermore, when the ton containers are stacked, the limiting plate is locked inside the frame, improving the stability of the stacking. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the stacking of the fertilizer ton container protective frame provided in this embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of the fertilizer ton container protective frame provided in this embodiment of the utility model;

[0014] Figure 3 This is a front sectional view of the moving mechanism provided in this embodiment of the utility model;

[0015] In the figure, 1-frame, 2-moving mechanism, 11-pad, 12-crossbar, 21-connecting column, 22-connecting plate, 23-limiting plate, 24-rolling ball, 25-adjusting screw, 26-adjusting nut, 221-threaded hole, 222-accommodating cavity, 231-arc-shaped through hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3 This utility model provides a technical solution: a protective frame for fertilizer ton containers, including a square frame 1, and a pad 11 covering the entire bottom surface of the inner side of the frame 1. The top of the frame 1 is provided with a plurality of detachable crossbars 12 connected by bolts, and the top surface of the crossbars 12 is lower than the top surface of the frame 1. Rubber pads (omitted in the attached drawings) are provided on the inner side of the frame 1 and above the pad 11, and the ton container is protected by the rubber pads.

[0018] The frame 1 has four moving mechanisms 2 at its bottom corners. The outer edge of each moving mechanism 2 is located inside the frame 1, and at least one crossbar 12 is located directly above each moving mechanism 2. The moving mechanism 2 includes a connecting column 21, a connecting plate 22, a limiting plate 23, a rolling ball 24, an adjusting screw 25, and a locking nut 26. There are four connecting columns 21, with one end welded to the four corners of the top surface of the connecting plate 22 and the other end welded to the bottom of the pad 11. The connecting plate 22 and the limiting plate 23 are square. The top center of the connecting plate 22 has a vertical threaded hole 221 that matches the thread of the adjusting screw 25. The adjusting screw 25 is threaded into the threaded hole 221 of the connecting plate 22. The connecting plate 22 has a receiving cavity 222 inside to accommodate the rolling ball 24. When the rolling ball 24 is located in the receiving cavity 222, the axis of the adjusting screw 25 is vertically aligned with the center of the rolling ball 24. The limiting plate 23 is welded or bolted to the bottom of the connecting plate 22. The side walls of the connecting plate 22 and the limiting plate 23 are vertically aligned, and the two right-angled sides of the connecting plate 22 and the limiting plate 23 are tangent to the inner side of the frame 1. The limiting plate 23 is provided with an arc-shaped through hole 231 with an arc-shaped side wall. The top diameter of the arc-shaped through hole 231 is larger than the diameter of the rolling ball 24, and the bottom diameter of the arc-shaped through hole 231 is smaller than the diameter of the rolling ball 24. The axis of 31 coincides with the axis of the vertical threaded hole 221 of the connecting plate 22. When the rolling ball 24 falls from the receiving cavity 222 into the arc-shaped through hole 231, the rolling ball 24 is stuck in the arc-shaped through hole 231 and the lower spherical surface of the rolling ball 24 is located below the limiting plate 23. The locking nut 26 is threadedly connected to the adjusting screw 25. When the adjusting screw 25 pushes the rolling ball 24 out, the adjusting screw 25 can be locked to prevent the adjusting screw 25 from loosening.

[0019] In practice, when the ton container needs to be moved, the adjusting screw 25 is rotated to push part of the spherical surface of the rolling ball 24 out of the arc-shaped through hole 231. The ton container can be moved by the rolling ball 24. When the ton container is stationary or needs to be stacked for transportation, the adjusting screw 25 is rotated upward along the thread, and the rolling ball 24 can be pressed back into the limiting plate 23 under the action of the ton container's gravity. The plane of the limiting plate 23 directly contacts the ground or the top crossbar 12 of the other ton container protective frame, and will not move or interfere with the stacking of ton containers. Moreover, when the ton containers are stacked, the limiting plate 23 is stuck inside the frame 1, which also improves the stability of the stacking.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fertilizer ton bucket guard frame, comprising a square frame, and a base plate covering the entire bottom surface of the inside of the frame, and a plurality of detachable horizontal rods arranged on the top of the frame, characterized in that: The frame has four movable mechanisms at its bottom corners, with the outer edges of these mechanisms located inside the frame. Each movable mechanism includes a connecting column, a connecting plate, a limiting plate, a rolling ball, and an adjusting screw. One end of the connecting column is fixedly connected to the connecting plate, and the other end is fixedly connected to the bottom of the pad. The top of the connecting plate has a vertical threaded hole that matches the thread of the adjusting screw. The adjusting screw is threaded into the threaded hole of the connecting plate. The connecting plate also has a cavity inside to accommodate the rolling ball. When the ball is in the receiving cavity, the axis of the adjusting screw is vertically aligned with the center of the rolling ball. The limiting plate is fixedly connected to the bottom of the connecting plate. The limiting plate is provided with an arc-shaped through hole with an arc-shaped sidewall. The top diameter of the arc-shaped through hole is larger than the diameter of the rolling ball, and the bottom diameter of the arc-shaped through hole is smaller than the diameter of the rolling ball. The axis of the arc-shaped through hole coincides with the axis of the vertical threaded hole of the connecting plate. When the rolling ball falls from the receiving cavity into the arc-shaped through hole, the rolling ball is stuck in the arc-shaped through hole and the lower part of the rolling ball is located below the limiting plate.

2. The fertilizer ton box guard of claim 1, wherein: The connecting plate and the limiting plate are square, and after the connecting plate and the limiting plate are connected, the side walls of the connecting plate and the limiting plate are vertically aligned, and the two right-angled side surfaces of the connecting plate and the limiting plate are tangent to the inner side of the frame. The top surface of the crossbar is lower than the top surface of the frame, and at least one crossbar is provided directly above the top surface of each moving mechanism.

3. The fertilizer ton box guard of claim 2, wherein: The connecting posts are provided in four parts, and one end of each of the four connecting posts is connected to the four corners of the top surface of the connecting plate. The vertical threaded hole is located at the center of the top surface of the connecting plate.

4. The fertilizer ton box guard of claim 1, wherein: The adjusting screw is also connected to a locking nut via a thread.

5. The ton box guard for fertilizer according to any of claims 1-4, characterized in that: Rubber pads are provided on the inner side of the frame and above the pad plate.

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