Lifting hook operation state detection system

Abstract

The invention provides a lifting hook running state detection system, and relates to the technical field of lifting hook posture monitoring, and the lifting hook running state detection system comprises a lifting hook posture monitoring device, an Internet of Things cloud platform and a cab monitoring terminal; the lifting hook posture monitoring equipment is used for being installed on a lifting hook to obtain lifting hook posture information, the lifting hook posture monitoring equipment comprises an annular mercury switch, when the lifting hook inclines, mercury in the annular mercury switch rolls to the top, the annular mercury switch is switched on, and an alarm signal is output, and when the posture of the lifting hook is normal, the annular mercury switch is switched off. And mercury in the annular mercury switch is located at the bottom and outputs a disconnection signal. According to the lifting hook posture monitoring device installed on the lifting hook, the posture of the lifting hook is obtained by means of the annular mercury switch, the abnormal conditions such as rotation, inclination and collision of the lifting hook in the operation process can be accurately sensed, and compared with traditional naked eye observation and manual judgment, the monitoring accuracy and timeliness are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hook posture monitoring, and in particular to a hook operation status detection system. Background Art

[0002] In modern construction scenarios, tower cranes are commonly used as lifting equipment and are widely used in various engineering construction projects. However, there are many safety hazards in the process of hook lifting operations. The hook may rotate, tilt, collide and other unstable states. Due to the complex environment of the construction site and the long distance, it is difficult for the operator to clearly observe the actual posture of the hook with the naked eye, which easily leads to the inability to detect abnormal conditions of the hook in time. At the same time, relying solely on human judgment is also prone to mistakes, and it is difficult to ensure accurate control of the hook state. Once these dangerous situations are not discovered and handled in time, it is very likely to cause major safety accidents, resulting in casualties and property losses. Therefore, we make improvements to this and propose a hook operation status detection system. Summary of the invention

[0003] The purpose of the present invention is to address the problem that the current human judgment of the hook state is prone to errors and it is difficult to ensure accurate control of the hook state.

[0004] In order to achieve the above-mentioned purpose of the invention, the present invention provides a hook operation status detection system to improve the above-mentioned problem.

[0005] The specific application is as follows:

[0006] The hook operation status detection system includes a hook posture monitoring device, an Internet of Things cloud platform and a cab monitoring terminal; the hook posture monitoring device is used to be installed on the hook to obtain the hook posture information, wherein the hook posture monitoring device includes an annular mercury switch. When the hook is tilted, the mercury in the annular mercury switch rolls to the top, the annular mercury switch is turned on, and an alarm signal is output. When the hook posture is normal, the mercury in the annular mercury switch is at the bottom and a disconnection signal is output.

[0007] As a preferred technical solution of the present application, the hook posture monitoring device has a network communication module, which is used to send the on-off signal of the annular mercury switch to the Internet of Things cloud platform, and the Internet of Things cloud platform is used to send the alarm signal output by the hook posture monitoring device to the cab monitoring terminal.

[0008] As a preferred technical solution of the present application, the cab monitoring terminal includes a main control unit connected to the Internet of Things cloud platform, and the main control unit is connected to a display unit and an audio output unit.

[0009] As a preferred technical solution of the present application, when the main control unit receives an alarm signal, an alarm screen is displayed on the display unit, and an alarm voice is played through the audio output unit; when the main control unit receives a disconnect signal, the alarm screen on the display unit is cancelled, and the audio output unit stops playing the alarm voice.

[0010] As a preferred technical solution of the present application, the IoT cloud platform is also connected to a mobile phone, and the IoT platform is used to transmit the alarm signal to the mobile phone.

[0011] As a preferred technical solution of the present application, the hook posture monitoring device also includes a protective shell, the annular mercury switch is connected to a core processing unit, a support frame is installed in the protective shell, and the annular mercury switch and the core processing unit are both installed on the support frame.

[0012] As a preferred technical solution of the present application, the network communication module is specifically a communication antenna installed on the protective shell, and the communication antenna is connected to the core processing unit.

[0013] As a preferred technical solution of the present application, the annular mercury switch includes an annular mercury tube, on which two leads are provided, both of which are connected to the core processing unit, and mercury is provided in the annular mercury tube, and the mercury is connected to the two leads when the hook is tilted, thereby achieving connectivity between the two leads.

[0014] As a preferred technical solution of the present application, protective plates are installed on both sides of the protective shell, and a connecting structure for connecting to a hook is provided on the protective plate.

[0015] As a preferred technical solution of the present application, the connection structure includes a hanging ring arranged on the protective plate, and the bottom end of the hanging ring is connected to a strong magnet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the scheme of this application:

[0018] The present application uses a hook posture monitoring device installed on the hook to obtain the hook posture with the help of a ring-shaped mercury switch, and can accurately sense abnormal conditions such as rotation, tilt, collision, etc. of the hook during operation. Compared with traditional naked eye observation and human judgment, the accuracy and timeliness of monitoring are greatly improved. Compared with the traditional method of relying on naked eye observation and human judgment, this system has significant advantages. The construction site environment is complex and changeable, and problems such as poor lighting conditions and obstructed vision are common. This makes it difficult for operators to see the actual posture of the hook when observing the hook status from a distance, and it is very easy to miss key abnormal information. Moreover, human judgment will inevitably be affected by factors such as fatigue, distraction, and experience differences, resulting in frequent misjudgments. The hook posture monitoring equipment in this system is not affected by factors such as light and distance, which greatly improves the accuracy and timeliness of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the hook posture monitoring terminal provided for this application;

[0020] Figure 2 A schematic diagram of the internal structure of the hook posture monitoring terminal provided for this application;

[0021] Figure 3 A schematic diagram of the upward-looking structure of the hook posture monitoring terminal provided in this application;

[0022] Figure 4 Schematic diagram of the hook operation status detection system provided in this application.

[0023] Indicated in the figure:

[0024] 1. Hook posture monitoring terminal; 101. Protective shell; 102. Support frame; 103. Annular mercury tube; 104. Lead wire; 105. Core processing unit; 106. Rechargeable battery; 107. Communication antenna; 108. Alarm unit; 109. Protective plate; 110. Lifting ring; 111. Strong magnet. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] For examples, please refer to Figure 4 A hook operation status detection system includes a hook posture monitoring device 1, an Internet of Things cloud platform and a cab monitoring terminal; the hook posture monitoring device 1 is used to be installed on the hook to obtain the hook posture information, wherein the hook posture monitoring device 1 includes an annular mercury switch. When the hook is tilted, the mercury in the annular mercury switch rolls to the top, the annular mercury switch is turned on, and an alarm signal is output. When the hook posture is normal, the mercury in the annular mercury switch is at the bottom, and a disconnection signal is output. The hook posture is obtained with the help of the annular mercury switch, and the rotation, tilt, collision and other abnormal conditions of the hook during operation can be accurately sensed. Compared with traditional naked eye observation and manual judgment, the accuracy and timeliness of monitoring are greatly improved.

[0029] Furthermore, the hook posture monitoring device 1 has a network communication module, which is used to send the on-off signal of the annular mercury switch to the Internet of Things cloud platform, and the Internet of Things cloud platform is used to send the alarm signal output by the hook posture monitoring device 1 to the cab monitoring terminal.

[0030] Furthermore, the cab monitoring terminal includes a main control unit connected to the Internet of Things cloud platform, the main control unit is connected to a display unit and an audio output unit, the display unit is a display screen, and the audio output unit is a speaker. The main control unit is based on an embedded industrial controller (such as an ARMCortex-A53 processor), integrates a 4G / 5G communication module and a CAN bus interface, and establishes communication with the Internet of Things platform through the TCP / IP protocol.

[0031] Furthermore, when the main control unit receives an alarm signal, an alarm screen is displayed on the display unit, and an alarm voice is played through the audio output unit; when the main control unit receives a disconnect signal, the alarm screen on the display unit is cancelled, and the audio output unit stops playing the alarm voice.

[0032] Furthermore, the IoT cloud platform is also connected to a mobile phone, and the IoT platform is used to transmit the alarm signal to the mobile phone. The communication between the IoT platform and the mobile phone includes: SMS push and network communication. SMS push sends the alarm text through the existing GSM module, and the network communication uses the MQTT protocol to transmit encrypted data packets for pushing to the mobile phone.

[0033] Further, such as Figure 1-Figure 3As shown, the hook posture monitoring device 1 also includes a protective shell 101, the annular mercury switch is connected to the core processing unit 105, a support frame 102 is installed in the protective shell 101, the annular mercury switch and the core processing unit 105 are both installed on the support frame 102, and the core processing unit 105 and the annular mercury switch can be supported by the support frame 102.

[0034] The core processing unit 105 includes a control mainboard, on which a main control MCU is integrated. Both leads 104 are connected to the control mainboard. The main control MCU monitors the electrical signals between the leads 104 in real time. When a conductive loop is detected between the leads 104, it is determined that the tilt angle exceeds 3°.

[0035] Furthermore, the network communication module is specifically a communication antenna 107 installed on the protective shell 101, the communication antenna 107 is connected to the core processing unit 105, and the communication antenna 107 supports 4G / LoRa communication protocol and interacts with the Internet of Things platform in real time.

[0036] Furthermore, the annular mercury switch includes an annular mercury tube 103, on which two leads 104 are arranged, and both leads 104 are connected to the core processing unit 105. Mercury is arranged in the annular mercury tube 103, and the mercury is connected to the two leads 104 when the hook is tilted, so as to achieve connectivity between the two leads 104 to output an alarm signal. When the hook is horizontal, the mercury is separated from the leads 104; the annular mercury tube 103 is filled with inert gas, and antifreeze is added to the mercury to ensure stable fluidity of mercury in an environment of -20°C to 60°C.

[0037] According to GB / T3811-2008 "Crane Design Specifications", the allowable tilt angle of the hook under normal working conditions generally does not exceed 3-5°. Therefore, the hook posture monitoring terminal 1 provided in this application is triggered when it detects that the tilt angle of the hook is greater than 3°. Specifically, when the tilt angle of the hook is greater than 3°, mercury will flow under the action of gravity and contact the two leads 104 at the same time to form a conductive loop.

[0038] Furthermore, protective plates 109 are installed on both sides of the protective shell 101, and a connecting structure for connecting with a hook is provided on the protective plate 109.

[0039] Furthermore, the connection structure includes a hanging ring 110 arranged on the protective plate 109, and the bottom end of the hanging ring 110 is connected to a strong magnet 111. The installation of the present application can be achieved by adsorbing the strong magnet 111 on the hook, which is convenient to install and easy to use.

[0040] An alarm unit 108 is installed on the top of the protective shell 101. The alarm unit 108 is connected to the core processing unit 105. The alarm unit 108 can use an audible and visual alarm to make an audible and visual alarm when an abnormality is detected.

[0041] A rechargeable battery 106 is installed in the protective shell 101 . The rechargeable battery 106 is connected to the core processing unit 105 . The rechargeable battery 106 is used to provide the required power for the operation of the hook posture monitoring terminal 1 .

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A hook operation status detection system, characterized in that: The invention comprises a hook posture monitoring device (1), an Internet of Things cloud platform and a cab monitoring terminal; the hook posture monitoring device (1) is used to be installed on the hook to obtain hook posture information, wherein the hook posture monitoring device (1) comprises an annular mercury switch, when the hook is tilted, the mercury in the annular mercury switch rolls to the top, the annular mercury switch is turned on, and an alarm signal is output; when the hook posture is normal, the mercury in the annular mercury switch is at the bottom, and a disconnection signal is output.

2. The hook operation status detection system according to claim 1, characterized in that: The hook posture monitoring device (1) has a network communication module, which is used to send the on / off signal of the annular mercury switch to the Internet of Things cloud platform, and the Internet of Things cloud platform is used to send the alarm signal output by the hook posture monitoring device (1) to the cab monitoring terminal.

3. The hook operation status detection system according to claim 2, characterized in that: The cab monitoring terminal includes a main control unit connected to the Internet of Things cloud platform, and the main control unit is connected to a display unit and an audio output unit.

4. The hook operation status detection system according to claim 3, characterized in that: When the main control unit receives an alarm signal, it displays an alarm screen on the display unit and plays the alarm voice through the audio output unit; when the main control unit receives a disconnect signal, it cancels the alarm screen on the display unit and the audio output unit stops playing the alarm voice.

5. The hook operation status detection system according to claim 1, characterized in that: The Internet of Things cloud platform is also connected to a mobile phone terminal, and the Internet of Things platform is used to transmit the alarm signal to the mobile phone terminal.

6. The hook operation status detection system according to claim 2, characterized in that: The hook posture monitoring device (1) further comprises a protective shell (101), the annular mercury switch is connected to a core processing unit (105), a support frame (102) is installed in the protective shell (101), and the annular mercury switch and the core processing unit (105) are both installed on the support frame (102).

7. The hook operation status detection system according to claim 6, characterized in that: The network communication module is specifically a communication antenna (107) installed on the protective shell (101), and the communication antenna (107) is connected to the core processing unit (105).

8. The hook operation status detection system according to claim 7, characterized in that: The annular mercury switch comprises an annular mercury tube (103), two leads (104) are arranged on the annular mercury tube (103), both of the two leads (104) are connected to a core processing unit (105), and mercury is arranged in the annular mercury tube (103), and the mercury is connected to the two leads (104) when the hook is tilted, so as to achieve communication between the two leads (104).

9. The hook operation status detection system according to claim 8, characterized in that: Protective plates (109) are installed on both sides of the protective shell (101), and a connection structure for connecting with a hook is provided on the protective plate (109).

10. The hook operation status detection system according to claim 9, characterized in that: The connection structure comprises a hanging ring (110) arranged on the protective plate (109), and a strong magnet (111) is connected to the bottom end of the hanging ring (110).

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