A crown block call boarding system
By using an automatic call system and a grating detection device, combined with electromagnetic lock indicator lights and electromagnetic locks, the safety accident problem caused by inaccurate crane docking has been solved, enabling the crane to dock quickly and accurately and board safely, thus improving operational efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-06-26
Smart Images

Figure CN224418951U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of overhead crane safety technology, and more specifically, to an overhead crane call boarding system. Background Technology
[0002] Overhead cranes are widely used in the steel industry. Operators enter the crane via a platform to control it and lift materials. However, due to inaccurate crane positioning and other reasons, the actual stopping point may deviate significantly from the preset position, leading to accidents such as falls and crushing injuries for personnel boarding the crane. Therefore, it is essential to ensure the crane stops accurately and that personnel board safely. Utility Model Content
[0003] To address the aforementioned problems, the purpose of this utility model is to provide a crane call boarding system.
[0004] A crane call boarding system includes:
[0005] An automatic calling system includes a calling signal transmitter and a calling indicator light, wherein the calling signal transmitter is used to send a calling signal to the target crane;
[0006] The call indicator light is installed on the overhead crane. When the target overhead crane receives a call signal, the call indicator light will light up.
[0007] The boarding confirmation system includes a boarding confirmation button. When the boarding personnel confirm that the crane whose call indicator light is lit matches the crane they called, they press the boarding confirmation button to send a control signal to the crane control system, which then controls the target crane to move toward the boarding platform.
[0008] Preferably, it also includes: a grating detection device, which is installed on the boarding platform to detect whether the target crane is aligned with the boarding platform.
[0009] Preferred options also include:
[0010] The boarding platform protection system, installed on the overhead crane, includes an electromagnetic lock indicator light and an electromagnetic lock. When the target overhead crane and the boarding platform are not aligned, the electromagnetic lock closes the door of the target overhead crane, and the electromagnetic lock indicator light turns off. When the target overhead crane and the boarding platform are aligned, the electromagnetic lock opens the door of the target overhead crane, and the electromagnetic lock indicator light illuminates.
[0011] According to the specific embodiments provided by this utility model, the following technical effects are disclosed:
[0012] This utility model relates to a crane calling boarding system. Compared with the prior art, this utility model can quickly and accurately convey calling information, avoiding the need for traditional methods such as manual announcements to notify the crane front desk, and improving the overall efficiency of the boarding operation.
[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A schematic diagram of a crane call boarding system provided by an embodiment of the present invention is shown. Detailed Implementation
[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] Please see Figure 1 A crane call boarding system includes:
[0020] An automatic calling system includes a calling signal transmitter and a calling indicator light, wherein the calling signal transmitter is used to send a calling signal to the target crane;
[0021] The call indicator light is installed on the overhead crane. When the target overhead crane receives a call signal, the call indicator light will light up.
[0022] The boarding confirmation system includes a boarding confirmation button. When the boarding personnel confirm that the crane whose call indicator light is lit matches the crane they called, they press the boarding confirmation button to send a control signal to the crane control system, which then controls the target crane to move toward the boarding platform.
[0023] Furthermore, it also includes: a grating detection device, installed on the boarding platform, used to detect whether the target crane is aligned with the boarding platform.
[0024] The boarding platform protection system, installed on the overhead crane, includes an electromagnetic lock indicator light and an electromagnetic lock. When the target overhead crane and the boarding platform are not aligned, the electromagnetic lock closes the door of the target overhead crane, and the electromagnetic lock indicator light turns off. When the target overhead crane and the boarding platform are aligned, the electromagnetic lock opens the door of the target overhead crane, and the electromagnetic lock indicator light illuminates.
[0025] The following is a further explanation of the overhead crane call boarding system of this utility model, with reference to the specific workflow:
[0026] I. Automatic Calling System
[0027] 1. System Composition:
[0028] Call signal transmitter: It uses wireless communication technology, such as Wi-Fi, Bluetooth or radio waves, and is installed on the vehicle to be boarded.
[0029] Call indicator light: Using lights, sounds or displays, it provides real-time feedback on the call status in the crane cab, alerting passengers to the call status.
[0030] 2. Workflow:
[0031] When the crane operator needs to board the crane for work, he / she presses the call crane button at the boarding position on the crane's operating span. The indicator light on the receiver installed on the outside of the crane will light up, indicating to the operator to confirm the crane being called.
[0032] II. Boarding Confirmation System
[0033] 1. System Composition:
[0034] Confirmation button: Sends a confirmation signal to the crane control system, allowing the crane to move towards the boarding platform.
[0035] Alignment device: The grating detection method is used to ensure that the overhead crane and the boarding platform are aligned, cut off the power supply of the crane, and allow subsequent boarding operations to proceed.
[0036] 2. Workflow:
[0037] Personnel boarding the crane confirming that the illuminated indicator light matches the crane called for are then prompted to press the boarding confirmation button. If the crane is on the north side of the boarding platform, it will move south. When the crane reaches the boarding position, the optical detector on the boarding platform will illuminate, indicating alignment is complete. The crane's trolley control system will then de-energize, and the crane will stop. Conversely, if the crane is on the south side of the boarding platform, it will move north. When the crane reaches the boarding position, the optical detector on the boarding platform will illuminate, indicating alignment is complete. The white alignment indicator light will illuminate, the crane's trolley control system will de-energize, and the crane will stop, preventing sudden crane movement during boarding and potential crushing accidents. If the white alignment indicator light remains off during crane movement, the electromagnetic lock on the boarding platform will be locked, preventing personnel from opening the platform door.
[0038] III. Boarding Platform Protection System
[0039] 1. System Composition:
[0040] Electromagnetic lock: A clear electromagnetic lock indicator light is installed on the boarding platform. Personnel boarding the crane can judge the alignment status of the crane by the status of the indicator light. When the crane is not aligned, the operator cannot open the electromagnetic lock.
[0041] Overhead crane door position detection: Used to detect the open and closed status of the overhead crane door to ensure the safe boarding of personnel onto the overhead crane.
[0042] 2. Workflow:
[0043] Once the overhead crane is aligned, the electromagnetic lock on the boarding platform unlocks, and the green indicator light on the electromagnetic lock illuminates. Conversely, if the overhead crane fails to move into position, the electromagnetic lock locks, and the red indicator light on the electromagnetic lock illuminates, preventing operators from boarding the overhead crane from the platform. This prevents accidents caused by personnel falling from heights during the boarding process due to improper crane alignment.
[0044] When a person boards the overhead crane, the crane door opens. The crane door closes, and the proximity switch detects that the crane door is open. When the crane door closes, the proximity switch is de-energized. The person boards the crane, the electromagnetic lock on the boarding platform locks, and the crane door closes. The crane door closes, the proximity switch is energized, and the crane's trolley motion control system is energized, allowing the crane to move and the person to work. This avoids crane movement during boarding and alighting, preventing personal injury accidents. It improves the efficiency of boarding and alighting, allowing multiple people to board and alight in a short time, and also allows for the safe transport of materials into the crane.
[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A crane call boarding system, characterized in that, include: An automatic calling system includes a calling signal transmitter and a calling indicator light, wherein the calling signal transmitter is used to send a calling signal to the target crane; The call indicator light is installed on the overhead crane. When the target overhead crane receives a call signal, the call indicator light will light up. The boarding confirmation system includes a boarding confirmation button. When the boarding personnel confirm that the crane whose call indicator light is lit matches the crane they called, they press the boarding confirmation button to send a control signal to the crane control system, which then controls the target crane to move toward the boarding platform.
2. The overhead crane call boarding system according to claim 1, characterized in that, Also includes: The grating detection device is installed on the boarding platform to detect whether the target crane is aligned with the boarding platform.
3. The overhead crane call boarding system according to claim 2, characterized in that, Also includes: The boarding platform protection system, installed on the overhead crane, includes an electromagnetic lock indicator light and an electromagnetic lock. When the target overhead crane and the boarding platform are not aligned, the electromagnetic lock closes the door of the target overhead crane, and the electromagnetic lock indicator light turns off. When the target overhead crane and the boarding platform are aligned, the electromagnetic lock opens the door of the target overhead crane, and the electromagnetic lock indicator light illuminates.