A container for adjustable mass and super load calibration

Abstract

The utility model relates to a kind of container for adjustable mass center super eccentric load calibration, including the box bottom plate of length along left-right direction, width extends along front-back direction, hoisting upright column is vertically arranged at the four corners of box bottom plate, hoisting structure is arranged at the top of hoisting upright column, multiple box bottom plate positioning groove groups are distributed on box bottom plate and are spaced apart along left-right direction, each box bottom plate positioning groove group includes multiple box bottom plate positioning grooves and is spaced apart along front-back direction, calibration container further includes weight corresponding with box bottom plate positioning groove, box bottom plate positioning groove is the necking structure of gradually smaller groove diameter from top to bottom, weight bottom has the positioning end head of gradually smaller outer diameter from top to bottom and necking structure adaptation, the bottom of positioning end head is end head plane.The utility model solves the technical problem that weight coordinate cannot be accurately obtained due to the size mismatch between weight and positioning groove in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of verification and calibration, and in particular to a container for calibration with adjustable center of mass and off-center load. Background Technology

[0002] The container overload and off-center load detection device measures the total weight and center of gravity coordinates of the container. It is mainly used to prevent overloading or off-center loading of transport vehicles such as road vehicles, railway trains and cargo ships carrying containers, and to ensure transportation safety.

[0003] Existing suspended container overload and off-center load detection devices are mainly installed on the front crane or gantry crane frame. They can detect the weight, eccentricity, and off-center load of containers during lifting. However, these devices lack calibration devices and traceability methods, resulting in inconsistent verification standards and difficulties in assessing the verification accuracy during installation and use. This leads to poor acceptance verification accuracy, chaotic acceptance technical conditions, and potential safety hazards in container transportation.

[0004] To calibrate the container overload detection device, our company applied for an invention patent with application number 2025106900083 and titled "Calibration Method for Container Overload Detection Device". This patent discloses a calibration method that includes the following steps:

[0005] S10. Adjust the distribution of weights at the bottom of the calibration box;

[0006] Multiple positioning structure groups are evenly distributed along the length direction on the rectangular base plate of the calibration box. Each positioning structure group includes multiple positioning structures evenly distributed in the width direction. A coordinate origin is set on the rectangular base plate, and the coordinate values ​​of each positioning structure relative to the coordinate origin are known.

[0007] Each weight can be detachably connected to the positioning structure, which can fix the weight so that the center of gravity of the weight coincides with the center of the corresponding positioning structure.

[0008] The positioning structure includes an empty positioning structure without weights and a loaded positioning structure with weights, wherein the number and position of the empty positioning structures are selected.

[0009] S20. Connect the spreader of the container overload detection device to the calibration box and lift the calibration box.

[0010] S30. Calculate the off-center load based on the distribution of each weight, and compare the calculated off-center load with the off-center load detected by the container overload detection device.

[0011] In this method, the off-center load of the weight is calculated. Therefore, to ensure the accuracy of the calculation, the position coordinates of the weight relative to the calibration box must be accurate. The problem with the existing technology is that when placing the weight, the bottom of the calibration box has positioning structures, i.e., positioning slots, that correspond to the weight. However, in reality, to facilitate the placement of the weight, there is a gap between the positioning slot and the weight. That is, the width and length of the positioning slot are slightly larger than the width and length of the weight. Since the size of the positioning slot is larger than the weight, when the weight is placed in the positioning slot, the weight and the positioning slot cannot be perfectly matched. As a result, the accurate coordinates of the weight cannot be obtained, which will affect the accuracy of the final calibration calculation. Utility Model Content

[0012] The purpose of this invention is to provide an adjustable center of mass for off-center load calibration container, which solves the technical problem in the prior art where the weight coordinates cannot be accurately obtained due to the mismatch between the size of the weight and the positioning groove.

[0013] The technical solution of this utility model is as follows:

[0014] An adjustable center of gravity eccentric load calibration container includes a bottom plate extending in the left-right direction and in the front-back direction. Lifting columns are vertically installed at the four corners of the bottom plate, and a lifting structure is installed on the top of each column. Multiple bottom plate positioning slots are distributed on the bottom plate at intervals in the left-right direction. Each bottom plate positioning slot group includes multiple bottom plate positioning slots at intervals in the front-back direction. The calibration container also includes weights corresponding to the bottom plate positioning slots. The bottom plate positioning slots have a tapered structure with a gradually decreasing diameter from top to bottom. The weights have positioning ends with a gradually decreasing outer diameter from top to bottom, adapted to the tapered structure, and the bottom of the positioning ends is a flat surface.

[0015] Furthermore, the positioning groove of the bottom plate includes a left groove wall, a right groove wall, a front groove wall, and a rear groove wall. The distance between the left and right groove walls gradually narrows from top to bottom; the distance between the front and rear groove walls gradually narrows from top to bottom.

[0016] Furthermore, the top of the weight is provided with a weight positioning groove that is adapted to the positioning end. A weight lifting rod is provided between the front and rear walls of the weight positioning groove. The positioning end includes a left end part and a right end part, and there is an avoidance notch between the left end part and the right end part to avoid the weight lifting rod.

[0017] Furthermore, the container bottom plate includes a pad plate arranged vertically and a container bottom plate, lifting columns are set at the four corners of the container bottom plate, and the container bottom plate positioning groove is set on the pad plate. The container bottom plate positioning groove penetrates the pad plate in the vertical direction, and the thickness of the pad plate is greater than the height of the positioning end.

[0018] Furthermore, the pad has clearance notches at its four corners for avoiding the corresponding lifting columns, and the lifting columns are equipped with spring pins to limit the upward movement of the pad.

[0019] The beneficial effects of this technical solution are as follows: In this utility model, the bottom of the weight has a positioning end that gradually decreases in outer diameter from top to bottom and is adapted to the constriction structure. The bottom of the positioning end is a flat end, which allows the weight to be placed horizontally in normal operation. When the positioning end needs to be placed in the corresponding positioning groove of the container bottom plate, it is only necessary to fit the positioning end into the positioning groove of the container bottom plate. The constriction structure has a self-centering function, which makes the geometric center of gravity of the weight completely consistent with the positioning groove of the container bottom plate. That is, the four sides of the positioning end are in contact with the corresponding groove wall of the positioning groove of the container bottom plate. Therefore, it can be ensured that the coordinates of the weight can be accurately obtained. By placing the weight in different positioning grooves of the container bottom plate, the center of gravity of the calibration container can be adjusted. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cooperation between the bottom plate and the lifting column in an embodiment of an adjustable center of gravity over-eccentric load calibration container of this utility model;

[0021] Figure 2 for Figure 1 Top view;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0023] Figure 4 This is a schematic diagram showing the fit between the weights of this utility model and the positioning groove on the bottom plate of the box;

[0024] Figure 5 yes Figure 4 A schematic diagram showing the state when two weights are stacked.

[0025] In the diagram: 1. Container floor; 2. Pad; 3. Spring pin; 4. Lifting column; 5. Lifting structure; 6. Container floor positioning groove; 6-1. Left side groove wall; 6-2. Rear side groove wall; 6-3. Front side groove wall; 6-4. Right side groove wall; 7. Spring pin return spring; 8. Left end portion; 9. Right end portion; 10. Clearance notch; 11. End plane; 12. Weight; 13. Weight positioning groove; 14. Weight lifting rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0030] A specific embodiment of the adjustable center of gravity over-eccentric load calibration container of this utility model is as follows: Figures 1-5 As shown,

[0031] The calibration container includes a bottom plate extending in the left-right direction and in the front-back direction. The bottom plate includes a pad 2 and a container bottom plate 1 set on the top and bottom. Four lifting columns 4 are vertically set at the four corners of the container bottom plate 1. Each lifting column 4 is equipped with a lifting structure at its top. The lifting structure in this embodiment is the same as the container corner fitting in the prior art, and will not be described in detail here. It can be locked with the corresponding torsion lock. The container overload detection device lifts the calibration container through the torsion lock.

[0032] The pad has clearance notches at its four corners to allow for avoidance of the corresponding lifting columns, and the lifting columns are equipped with spring pins 3 to limit the upward movement of the pad. For example... Figure 2 As shown, a spring seat and a spring pin return spring 7 are installed inside the hoisting column. The two ends of the spring pin return spring 7 are mounted between the spring seat and the spring pin 3.

[0033] The bottom of the spring pin 3 is used to engage with the upper end of the pad to restrict the upward movement of the pad.

[0034] The pad 2 has multiple sets of bottom plate positioning grooves spaced apart in the left-right direction. In this embodiment, there are five sets of bottom plate positioning grooves, and each set includes multiple bottom plate positioning grooves 6 spaced apart in the front-back direction. Each set includes three bottom plate positioning grooves. The bottom plate positioning grooves penetrate the pad 2 in the up-down direction.

[0035] The positioning groove 6 of the box bottom plate has a narrowing structure with the groove diameter gradually decreasing from top to bottom. Specifically, the groove walls of the positioning groove of the box bottom plate include the left groove wall 6-1, the right groove wall 6-4, the front groove wall 6-1 and the rear groove wall 6-2. The distance between the left and right groove walls gradually narrows from top to bottom; the distance between the front and rear groove walls gradually narrows from top to bottom.

[0036] In this embodiment, the calibration container also includes a weight 12 corresponding to the positioning groove on the bottom plate of the container. The bottom of the weight has a positioning end with a gradually decreasing outer diameter from top to bottom, which is adapted to the constriction structure. The bottom of the positioning end is an end plane 11. The thickness of the pad 2 is greater than the height of the positioning end.

[0037] The top of the weight is provided with a weight positioning groove 13 that is adapted to the positioning end. A weight lifting rod 14 is provided between the front and rear walls of the weight positioning groove 13. The weight lifting rod 14 is used to cooperate with the hook of the lifting device to move the weight to a designated position. The positioning end is composed of a left end part 8 and a right end part 9 that are spaced apart. There is a clearance notch 10 between the left end part and the right end part to avoid the weight lifting rod.

[0038] When installing the pad, personnel need to press the spring pin 3 back into the corresponding lifting column 4, then place the pad 2 on the container floor 1, and then release the spring pin 32. The spring pin 3 extends to the upper side of the pad. The spring pin is used to cooperate with the pad to stop and restrict the upward movement of the pad, and the lifting column is used to restrict the horizontal movement of the pad.

[0039] In use, the weight is hoisted into the corresponding positioning slot on the bottom plate of the box using a lifting device. The positioning end mates with the positioning slot on the bottom plate, and the four sides of the positioning end contact the four sides of the positioning slot on the bottom plate, thus achieving the centering of the weight. The geometric center coordinates of the weight are completely consistent with the geometric center of the positioning slot on the bottom plate, which ensures that the accurate coordinate value of the weight is obtained, laying the foundation for accurate off-center load calculation in the future.

[0040] At the same time, this constricted structure also makes it easy to lift the weights from bottom to top. When the weight of a single weight is not enough, two or more weights can be stacked. The left end and the right end form a clearance notch to avoid the weight lifting rod, which can ensure that the weights can be stacked smoothly.

[0041] The container overload detection device uses a torsion lock to lift and calibrate the container. By comparing the off-center load value displayed by the container overload detection device with the calculated off-center load value, the container overload detection device can be calibrated.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A container for adjusting center of gravity over-eccentric load calibration, characterized in that, The container includes a bottom plate extending horizontally and vertically, with lifting columns at the four corners and a lifting structure at the top of each column. Multiple positioning slots are spaced horizontally on the bottom plate, and each positioning slot includes multiple positioning slots spaced horizontally. The calibration container also includes weights corresponding to the positioning slots. The positioning slots are narrowed sections with a gradually decreasing diameter from top to bottom. The weights have positioning ends with a gradually decreasing outer diameter from top to bottom, which are adapted to the narrowed section. The bottom of the positioning ends is a flat surface.

2. The adjustable center of gravity over-eccentric load calibration container according to claim 1, characterized in that: The positioning groove of the bottom plate includes a left groove wall, a right groove wall, a front groove wall and a rear groove wall. The distance between the left and right groove walls gradually narrows from top to bottom; the distance between the front and rear groove walls gradually narrows from top to bottom.

3. The adjustable center of gravity over-eccentric load calibration container according to claim 1, characterized in that: The top of the weight is provided with a weight positioning groove that is adapted to the positioning end. A weight lifting rod is provided between the front and rear walls of the weight positioning groove. The positioning end includes a left end part and a right end part. There is a clearance notch between the left end part and the right end part to avoid the weight lifting rod.

4. The adjustable center of gravity off-center load calibration container according to any one of claims 1 to 3, characterized in that: The container floor includes a pad plate arranged vertically and a container floor plate. Lifting columns are set at the four corners of the container floor plate. The container floor plate positioning groove is set on the pad plate. The container floor plate positioning groove runs through the pad plate in the vertical direction. The thickness of the pad plate is greater than the height of the positioning end.

5. The adjustable center of gravity off-center load calibration container according to claim 4, characterized in that: The pad has clearance notches at its four corners to allow it to avoid the corresponding lifting columns. The lifting columns are equipped with spring pins to limit the upward movement of the pad.

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