Quantitative bin weighing verification weight lifting protection device

Abstract

The utility model belongs to the technical field of quantitative bins of loading buildings, and particularly relates to a quantitative bin weighing verification weight lifting protection device, which comprises four vertical columns, four vertical columns and a lifting device, a sensing cross rod is arranged between the bottoms of the stand columns on the same side; the longitudinal grating host is mounted on the side surface of one upright post, and a longitudinal grating slave opposite to the upright post is arranged on the other upright post; the transverse grating host is mounted on one induction cross rod, and the other induction cross rod is provided with a transverse grating slave opposite to the induction cross rod; and the PLC system receives the grating signal through a cable. According to the utility model, whether a person intrudes into a rectangular area can be effectively monitored, so that dangerous situations are avoided; and the transverse grating host on the induction cross rod is matched with the slave, so that the condition that the weight stays at the bottom and is not completely lifted can be detected, a reminding signal can be conveniently sent out in time, and maintenance is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of the metering bin of the loading tower, and particularly relates to a lifting protection device for a weighing calibration weight of the metering bin. Background Art

[0002] To ensure the metering accuracy of the metering bin of the loading tower, it is necessary to use standard weights for metering calibration. Usually, the driver operates to control the lifting of the weights, and the weights are connected to the hanging rod by a buckle for easy disassembly and assembly. By lifting different numbers of weights, different weights can be confirmed. However, due to frequent lifting and lowering, the buckle may become loose, and sometimes the calibration data of the metering bin of the loading tower may be inaccurate because some weights are not lifted. Moreover, during the process of lifting or lowering the weights, the mechanical impact is relatively large. If someone enters the weight area, there is a possibility of personal injury or death accidents. Therefore, at present, it is necessary for personnel to monitor on-site, warn people not to approach, and confirm that all the weights are lifted.

[0003] In order to reduce the personnel input and ensure that all the weights are lifted and the safety of the personnel in the weight area, the present application provides a lifting protection device for a weighing calibration weight of the metering bin.

[0004] The information disclosed in this background art section is only for enhancing the understanding of the overall background of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lifting protection device for a weighing calibration weight of the metering bin to ensure that all the weights are lifted and the safety of the personnel in the weight area.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A lifting protection device for a weighing calibration weight of the metering bin, comprising:

[0008] Four vertical columns are provided, and the bottom connection lines thereof form a rectangle; an induction cross bar is provided between the bottoms of the columns on the same side;

[0009] A longitudinal grating main machine is installed on the side surface of the column, and a longitudinal grating slave machine is provided on the other column opposite thereto;

[0010] A transverse grating main machine is installed on one of the induction cross bars, and a transverse grating slave machine is provided on the other induction cross bar opposite thereto;

[0011] A PLC system receives the grating signals through cables.

[0012] Preferably, the cross-section of the vertical column is L-shaped and includes a first vertical column, a second vertical column, a third vertical column, and a fourth vertical column; the first vertical column and the second vertical column are on the same side, and the third vertical column and the fourth vertical column are on the same side.

[0013] Preferably, the longitudinal grating main machine includes a first grating main machine, a second grating main machine, a third grating main machine, and a fourth grating main machine; the longitudinal grating slave machine includes a first grating slave machine, a second grating slave machine, a third grating slave machine, and a fourth grating slave machine.

[0014] Preferably, the first grating main machine is installed on the side of the first vertical column and is arranged opposite to the first grating slave machine installed on the side of the third vertical column; the fourth grating main machine is installed on the other side of the third vertical column and is arranged opposite to the fourth grating slave machine installed on the side of the fourth vertical column; the second grating slave machine is installed on the other side of the fourth vertical column and is arranged opposite to the second grating main machine installed on the side of the second vertical column; the third grating slave machine is installed on the other side of the second vertical column and is arranged opposite to the third grating main machine installed on the other side of the first vertical column.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) For the quantitative bin weighing calibration weight lifting protection device of the utility model, through the cooperation of multiple longitudinal grating main machines and slave machines arranged on the vertical column, it can effectively monitor whether there are people breaking into the rectangular area and avoid dangerous situations.

[0017] (2) For the quantitative bin weighing calibration weight lifting protection device of the utility model, the cooperation of the horizontal grating main machine and slave machine on the induction cross bar can detect the situation where the weight stays at the bottom and is not completely lifted, which is convenient for timely sending a reminder signal and facilitating maintenance. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the positions of the vertical column and the weighing weight of the utility model;

[0019] Figure 2 is a schematic diagram of the positional relationship between each grating main machine and slave machine of the utility model;

[0020] Figure 3 is a schematic diagram of the working state of the grating main machine and slave machine of the utility model;

[0021] Main reference numeral description:

[0022] 1. Inductive crossbar; 2. Cable conduit; 3. First column; 4. Second column; 5. Third column; 6. Fourth column; 7. First grating host; 8. Second grating host; 9. Third grating host; 10. Fourth grating host; 11. First grating slave; 12. Second grating slave; 13. Third grating slave; 14. Fourth grating slave; 15. Horizontal grating host; 16. Horizontal grating slave; 17. Weight. Detailed implementation mode

[0023] The technical solution of the utility model patent will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative work belong to the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that, as terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, as terms such as "installation", "connection", "connection" should be understood in a broad sense. For example, it 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, and it can be the connection inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Refer to the attached Figures 1-3 , a quantitative bin weighing and calibration weight lifting protection device, comprising:

[0027] Columns, there are 4 vertically arranged, and the bottom connection lines form a rectangle; an inductive crossbar 1 is provided between the bottoms of the columns on the same side;

[0028] Longitudinal grating host, installed on the side of the column, and a longitudinal grating slave is provided on another column facing it;

[0029] Horizontal grating host 15, installed on one of the inductive crossbars 1, and a horizontal grating slave 16 is provided on another inductive crossbar 1 facing it;

[0030] The PLC system receives the grating signals through cables, and there is a cable conduit 3 for protecting the cables between the columns.

[0031] In this embodiment, the cross-section of the column is L-shaped, including a first column 3, a second column 4, a third column 5, and a fourth column 6; the first column 3 and the second column 4 are on the same side, and the third column 5 and the fourth column 6 are on the same side.

[0032] The longitudinal grating main machines include a first grating main machine 7, a second grating main machine 8, a third grating main machine 9, and a fourth grating main machine 10; the longitudinal grating slave machines include a first grating slave machine 11, a second grating slave machine 12, a third grating slave machine 13, and a fourth grating slave machine 14.

[0033] The first grating main machine 7 is installed on the side of the first column 3 and is arranged opposite to the first grating slave machine 11 installed on the side of the third column 5; the fourth grating main machine 10 is installed on the other side of the third column 5 and is arranged opposite to the fourth grating slave machine 14 installed on the side of the fourth column 6; the second grating slave machine 12 is installed on the other side of the fourth column 6 and is arranged opposite to the second grating main machine 8 installed on the side of the second column 4; the third grating slave machine 13 is installed on the other side of the second column 4 and is arranged opposite to the third grating main machine 9 installed on the other side of the first column 3.

[0034] During actual use, if the induction area between the main machine and the slave machine is blocked, the digital quantity changes. The various gratings installed on the sides of the columns cooperate with each other to detect the personnel situation around the weight area. The columns are installed at a height of 1 meter. When a person stays in the weight area, as long as one of the 4 sets of gratings acts and the PLC recognition signal is not satisfied, it is determined that a person has intruded and the condition for lifting or lowering the weight 17 is not met.

[0035] When the driver controls the weight 17, there should be no personnel staying in the monitoring area of the device before lifting or lowering can be executed. When the weight 17 is lifted, the occlusion or reflection of the light beam by the weight 17 is used to detect whether the weight 17 is fully lifted. The transverse grating is installed on the induction crossbar 1 with an installation length of 0.5 meters, and its main machine and slave machine cooperate to detect the lifting situation of the weight 17. After the weight 17 is lifted, if the transverse grating is blocked, it means that there is still a weight 17 staying at the bottom, the PLC recognition signal is abnormal, it is determined that the weight 17 is not fully lifted, and a reminder signal is sent to remind the staff to enter for maintenance.

[0036] The quantitative bin weighing and calibration weight lifting protection device of the present utility model can ensure the full lifting of the weight 17 and the safety of personnel in the weight area through the cooperation between the grating main machines and slave machines, and a reminder is sent by the PLC. It is very practical and has a good market application prospect.

[0037] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and modifications. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A quantitative bin weighing and calibration weight lifting protection device, characterized in that: include: There are four vertical columns, and the bottoms of the columns are connected to form a rectangle; a sensing cross bar is provided between the bottoms of the columns on the same side; A longitudinal grating main machine is installed on the side of the column, and a longitudinal grating slave machine is arranged opposite to the main machine on the other column; A transverse grating master is mounted on one of the sensing crossbars, and a transverse grating slave is arranged opposite to the sensing crossbar on the other sensing crossbar; PLC system, receives the grating signal through the cable.

2. The quantitative bin weighing and calibration weight lifting protection device according to claim 1 is characterized in that: The column has an L-shaped cross section and includes a first column, a second column, a third column and a fourth column; the first column and the second column are located on the same side, and the third column and the fourth column are located on the same side.

3. The quantitative bin weighing and calibration weight lifting protection device according to claim 2 is characterized in that: The longitudinal grating host includes a first grating host, a second grating host, a third grating host and a fourth grating host; the longitudinal grating slave includes a first grating slave, a second grating slave, a third grating slave and a fourth grating slave.

4. The quantitative bin weighing and calibration weight lifting protection device according to claim 3 is characterized in that: The first grating host is installed on the side of the first column, and is arranged opposite to the first grating slave installed on the side of the third column; the fourth grating host is installed on the other side of the third column, and is arranged opposite to the fourth grating slave installed on the side of the fourth column; the second grating slave is installed on the other side of the fourth column, and is arranged opposite to the second grating host installed on the side of the second column; the third grating slave is installed on the other side of the second column, and is arranged opposite to the third grating host installed on the other side of the first column.

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