State indicating device of multifunctional crown block and multifunctional crown block

Abstract

The utility model discloses a state indicating device of a multifunctional crown block and the multifunctional crown block, and relates to the technical field of crown block equipment, the multifunctional crown block comprises a plurality of functional mechanisms, the state indicating device is used for monitoring whether the functional mechanisms are located at the upper limit positions or not, and the state indicating device comprises a position detection assembly and a control assembly, the position detection assemblies are used for detecting whether the functional mechanisms are located at upper limit positions or not, and each functional mechanism is correspondingly provided with one position detection assembly; the indication assemblies are electrically connected with the position detection assemblies, and each indication assembly corresponds to one position detection assembly; when the functional mechanism is located at the upper limit position, the corresponding indication assembly is in the indication state, and when all the indication assemblies are in the indication state, the multifunctional crown block works normally. According to the invention, whether the functional mechanism in the multifunctional crown block reaches the upper limit position or not can be ensured, so that the multifunctional crown block can stably and efficiently operate in various working states.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of overhead traveling crane equipment, and particularly relates to a state indicating device of a multifunctional overhead traveling crane and the multifunctional overhead traveling crane. BACKGROUND

[0002] In the related art, the multifunctional overhead traveling crane is a highly complex mechanical device, and its working performance depends on the accurate cooperation of each component. Among them, the anode, the shell beating, the material pipe and the grab bucket mechanism are the key parts to realize its functions. These mechanisms must move according to the preset program and path during operation to ensure the smooth progress of work.

[0003] However, if a mechanism fails to reach the preset upper limit position, it will cause the entire multifunctional overhead traveling crane to malfunction, so that the overhead traveling crane cannot work normally. The existing multifunctional overhead traveling crane cannot timely find the case that the corresponding mechanism fails to reach the preset upper limit position. CONTENT OF THE INVENTION

[0004] The present application provides a state indicating device of a multifunctional overhead traveling crane and the multifunctional overhead traveling crane, which can ensure whether the functional mechanism in the multifunctional overhead traveling crane reaches the upper limit position, and further make the multifunctional overhead traveling crane stably and efficiently run in various working states.

[0005] In a first aspect, the present application provides a state indicating device of a multifunctional overhead traveling crane, the multifunctional overhead traveling crane comprising a plurality of functional mechanisms, the state indicating device being used for monitoring whether the functional mechanisms are in an upper limit position, and the state indicating device comprising:

[0006] a position detection assembly, part of which is arranged at the upper limit position of the functional mechanism, the position detection assembly being used for detecting whether the functional mechanism is in the upper limit position, and one position detection assembly being arranged corresponding to each functional mechanism;

[0007] an indicating assembly, which is electrically connected with the position detection assembly, and each indicating assembly corresponding to one position detection assembly;

[0008] When the functional mechanism is in the upper limit position, the corresponding indicating assembly is in an indicating state, and when all the indicating assemblies are in the indicating state, the multifunctional overhead traveling crane works normally.

[0009] Only when all the indicating components are in the indicating state, the multifunctional head sheave can be identified as normal work. In this way, not only the safety of the head sheave is improved, but also the monitoring work of the operator is greatly simplified. Through the state indicating device, the operator can understand the real-time state of the head sheave at a glance, so as to make accurate judgment and timely response. Further, it can ensure whether the functional mechanism in the multifunctional head sheave reaches the upper limit position, and further make the multifunctional head sheave stably and efficiently run in various working states.

[0010] In some examples, the functional mechanism includes at least one of an anode mechanism, a crust breaking mechanism, a material pipe mechanism, and a grab bucket mechanism.

[0011] In some examples, the state indicating device further includes a total indicating piece, all the indicating components are simultaneously electrically connected to the total indicating piece.

[0012] When all the indicating components are in the indicating state, the total indicating piece is in the indicating state; when any of the indicating components is in the shutdown state, the total indicating piece is in the shutdown state.

[0013] In some examples, the total indicating piece and / or the indicating component includes an indicating lamp, the indicating lamp is extinguished in the shutdown state and is lit in the indicating state.

[0014] In some examples, the multifunctional head sheave includes a tool car guardrail, and all the indicating components are in a conspicuous position of the tool car guardrail.

[0015] In some examples, the functional mechanism includes four mechanisms, which are an anode mechanism, a crust breaking mechanism, a material pipe mechanism, and a grab bucket mechanism, and the indicating component is an indicating lamp, and four indicating lamps are provided, and the four indicating lamps are electrically connected to the four mechanisms respectively.

[0016] In some examples, the cable connected to the indicating component is a five-core cable, and the length of the five-core cable is greater than or equal to 4 meters.

[0017] In the second aspect, the application provides a multifunctional head sheave including the above-mentioned state indicating device of the multifunctional head sheave.

[0018] The multifunctional head sheave with the above-mentioned state indicating device can ensure whether the functional mechanism in the multifunctional head sheave reaches the upper limit position, and further make the multifunctional head sheave stably and efficiently run in various working states. Only when all the indicating components are in the indicating state, the multifunctional head sheave can be identified as normal work. In this way, not only the safety of the head sheave is improved, but also the monitoring work of the operator is greatly simplified. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical solutions in the application or the prior art clearer, the drawings needed to be used in the examples or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some examples of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0020] Figure 1 Structure diagram of the state indicating device of the multifunctional overhead traveling crane in an example of the application;

[0021] Reference signs:

[0022] 100, position detection device; 200, indicating assembly; 300, tool car guardrail; 310, conspicuous position; 400, total indicating piece; 500, function mechanism; 510, anode mechanism; 520, shell breaking mechanism; 530, material pipe mechanism; 540, grab bucket mechanism. DETAILED DESCRIPTION

[0023] In order to make the technical solutions in the application or the prior art clearer, the drawings needed to be used in the examples or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some examples of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0024] In the state indicating device of the multifunctional overhead traveling crane in the related art, during the daily use of the multifunctional overhead traveling crane, technicians often encounter a difficult problem: the size of the car cannot be switched to the high-speed gear, and the tool mechanism cannot be raised. After in-depth analysis and repeated inspection, it is found that the main reason for this failure is usually that the mechanism fails to reach the upper limit position. In order to more intuitively understand this problem, it is necessary to have a basic understanding of the mechanical structure of the multifunctional overhead traveling crane and the control of the multifunctional overhead traveling crane.

[0025] The multifunctional overhead traveling crane is a highly complex mechanical device, and its working performance depends on the precise cooperation of each component. Among them, the anode, shell breaking, material pipe and grab bucket mechanisms are the key parts to realize their functions. These mechanisms must move according to the preset program and path during operation to ensure the smooth progress of work. If a mechanism fails to reach the preset upper limit position, it will cause the failure of the entire multifunctional overhead traveling crane, so that the crane cannot work normally.

[0026] In order to ensure that the multifunctional overhead traveling crane can stably and efficiently run in various working states, a state indicating device of the multifunctional overhead traveling crane emerges as the times require.

[0027] In order to solve the above technical problems, please refer to Figure 1As shown, the first aspect of the present application proposes a state indicating device for a multifunctional crown block, which can ensure whether the functional mechanism 500 of the multifunctional crown block reaches the upper limit position, and further enables the multifunctional crown block to stably and efficiently operate in various working states.

[0028] Referring to Figure 1 As shown, in some examples, a state indicating device for a multifunctional crown block is provided, wherein the multifunctional crown block comprises a plurality of functional mechanisms 500, the state indicating device is used to monitor whether the functional mechanisms 500 are in the upper limit position, and the state indicating device comprises:

[0029] A position detection assembly is partially arranged at the upper limit position of the functional mechanism 500, and the position detection assembly is used to detect whether the functional mechanism 500 is in the upper limit position, and one position detection assembly is arranged corresponding to each functional mechanism 500;

[0030] An indicating assembly 200 is electrically connected with the position detection assembly, and each indicating assembly 200 corresponds to one position detection assembly;

[0031] When the functional mechanism 500 is in the upper limit position, the corresponding indicating assembly 200 is in the indicating state, and when all the indicating assemblies 200 are in the indicating state, the multifunctional crown block normally operates.

[0032] The multifunctional crown block refers to a device with multiple functional mechanisms 500, such as hoisting, carrying, positioning, etc. These functional mechanisms 500 work cooperatively, so that the crown block can meet the diversified needs on the production line. The state indicating device can monitor the working state of these functional mechanisms 500 in real time, especially whether the functional mechanisms 500 are in the upper limit position.

[0033] The state indicating device mainly consists of two parts: the position detection assembly and the indicating assembly 200. Part of the position detection assembly is arranged at the upper limit position of each functional mechanism 500. The position detection assembly can use high-precision sensor technology, which can accurately perceive the position change of the functional mechanism 500. Once the functional mechanism 500 reaches the upper limit position, the position detection assembly will immediately capture this information and convert it into an electrical signal.

[0034] The indicating assembly 200 is closely connected with the position detection assembly. The indicating assembly 200 adopts an indicating lamp or more advanced electronic display technology, which can intuitively show the working state of the multifunctional crown block. Each indicating assembly 200 is electrically connected with the corresponding position detection assembly, ensuring real-time transmission and accurate display of information. When the functional mechanism 500 is in the upper limit position, the corresponding indicating assembly 200 will enter the indicating state, which will convey this information to the operator through light, color change or digital display, etc.

[0035] Only when all the indicating components 200 are in the indicating state, the multifunctional crown block can be considered as normal work. This not only improves the safety of the crown block, but also greatly simplifies the monitoring work of the operator. Through the state indicating device, the operator can understand the real-time state of the crown block at a glance, so as to make accurate judgment and timely response. Further, it can ensure whether the functional mechanism 500 of the multifunctional crown block reaches the upper limit position, and further make the multifunctional crown block run stably and efficiently in various working states.

[0036] The state indicating device can also set a diagnostic component with self-diagnosis function as needed. Once the multifunctional crown block fails or abnormally, the indicating component 200 will immediately display the corresponding error code, helping the maintenance personnel to quickly locate the problem and repair. This function not only improves the maintenance efficiency of the crown block, but also greatly reduces the production loss caused by failure.

[0037] When the indicating component 200 adopts the indicating lamp, each indicating lamp can be respectively connected in parallel on the corresponding functional mechanism 500.

[0038] Reference Figure 1 As shown in some examples, the functional mechanism 500 includes at least one of an anode mechanism 510, a crust breaking mechanism 520, a pipe mechanism 530, and a grab bucket mechanism 540.

[0039] The multifunctional crown block described above can include anode, crust breaking, pipe, grab bucket, etc. mechanism, which has unique function respectively, but can work together to complete many complex tasks.

[0040] The anode mechanism 510 is responsible for providing current in the electrolytic cell, thereby driving the electrolysis process. The design and manufacture of the anode can be accurate to millimeter level as needed to ensure that it can work stably in the harsh environment of high temperature and high corrosion. The quality and performance of the anode mechanism 510 directly affect the electrolysis efficiency and the production cost of the enterprise.

[0041] The crust breaking mechanism 520 will form a hard crust at the bottom of the anode in the aluminum electrolysis process due to the consumption of alumina. The task of the crust breaking mechanism 520 is to break this hard crust, so that alumina can continue to contact with current, thereby ensuring the continuous progress of the electrolysis process. The design of the crust breaking mechanism 520 needs to consider the balance of power, speed and precision to ensure that the hard crust can be effectively broken without damaging the anode.

[0042] The pipe mechanism 530 is responsible for conveying raw materials such as alumina into the electrolytic cell, which is necessary to maintain the electrolysis process. The design of the pipe needs to consider multiple factors such as wear resistance, corrosion resistance, and high temperature resistance to ensure that it can run stably for a long time in harsh working environment.

[0043] The grab mechanism 540 is responsible for grabbing and carrying heavy objects such as anodes, and is the key to the efficient operation of the multifunctional trolley. The grab mechanism 540 needs to have strong gripping force and accurate grabbing position to ensure that the objects are not damaged during the carrying process, and at the same time, to improve the work efficiency.

[0044] Each mechanism of the multifunctional trolley plays an indispensable role. The anode mechanism 510 provides current-driven electrolysis process; the crust breaking mechanism 520 breaks hard crust to ensure continuous electrolysis; the pipe mechanism 530 transports raw materials to maintain the electrolysis process; and the grab mechanism 540 grabs and carries heavy objects to achieve efficient operation.

[0045] In some examples, the status indicating device further comprises a total indicator 400, and all indicating components 200 are simultaneously electrically connected to the total indicator 400;

[0046] When all indicating components 200 are in the indicating state, the total indicator 400 is in the indicating state; when any indicating component 200 is in the shutdown state, the total indicator 400 is in the shutdown state.

[0047] The total indicator 400 can receive and integrate information from all indicating components 200. When all indicating components 200 are in normal working state, the total indicator 400 will send a clear signal that the entire multifunctional trolley equipment is in good running state. This indication method is very important for operators, meaning they can continue to operate the equipment without worrying about sudden failure or safety problems.

[0048] Once any indicating component 200 detects an abnormal condition, the current indicating component 200 will enter the shutdown state, and the total indicator 400 will also enter the shutdown state when it senses that an indicating component 200 is in the shutdown state. This can timely reflect the malfunction of the entire multifunctional trolley, thereby preventing equipment damage, avoiding production interruption, and protecting the safety of operators.

[0049] The multifunctional trolley can also include a central controller for monitoring the running state of each functional mechanism 500 and automatically adjusting the status of the indicating light as needed, improving the intelligence and automation level of the multifunctional trolley. The multifunctional trolley can exchange data with other devices through wireless communication technology, realize remote monitoring and control, and improve the flexibility and scalability of the multifunctional trolley. The multifunctional trolley is suitable for various scale industrial production lines, especially for large-scale equipment and production lines that need to frequently detect the upper limit of the tool mechanism.

[0050] By connecting the cable and indicator light at the upper limit position of each mechanism of the tool, the position state of the mechanism is intuitively displayed, so that the fault can be quickly identified. The on-off state of the indicator light directly reflects whether the tool mechanism is at the upper limit position, reducing the inspection time and workload of the maintenance personnel.

[0051] The present application can realize effective monitoring and quick identification of the tool mechanism state through the simple combination of cable and indicator light.

[0052] In some examples, the total indicator 400 and / or the indication assembly 200 includes an indicator light that is off in the shutdown state and on in the indication state.

[0053] As a common indication assembly 200, the indicator light is not only used to display the running state of the device, but also can warn the user when a fault or anomaly occurs. The indicator light is usually composed of a light-emitting diode (LED) or similar light source, and the on-off is realized by controlling the current. In the shutdown state, the indicator light is off because the device is not powered on or is in sleep mode. When the device is started and enters the running state, the current passes through the indicator light, making it on, thereby conveying the information that it is running normally to the user.

[0054] The brightness and color of the indicator light should be selected according to the specific application scenario to ensure that the user can clearly identify the state of the device. In addition, the installation position and height of the indicator light also need to be reasonably designed to avoid the problem that the user cannot accurately observe the state of the indicator light due to light or viewing angle.

[0055] In the night or limited visibility conditions, the potential safety hazards can be found and handled in time by observing the state of the indicator light. The indicator light can use high-brightness LED lights, which have the characteristics of long life, low power consumption and fast response, ensuring clear and reliable indication in various environments.

[0056] The indicator light can automatically adjust the brightness according to the strength of the ambient light, ensuring that the state of the tool mechanism can be clearly displayed under any light conditions. The adaptive brightness function is realized by a built-in photoresistor. When the ambient light is dark, the brightness of the indicator light increases; when the ambient light is bright, the brightness of the indicator light decreases.

[0057] A remote monitoring center can be set up as needed, which can monitor the working state of the cable and indicator light in real time. When a fault occurs, an alarm signal is automatically sent out and the fault type is displayed. The fault self-diagnosis function is realized by a built-in fault diagnosis module, which can detect faults such as open circuit, short circuit of the cable and damage of the indicator light, and prompt the operator through the display screen or sound.

[0058] The multifunctional crown block can be connected to a remote monitoring center through wireless communication technology as needed to realize real-time remote monitoring and control of the state of the tool mechanism. The wireless communication technology includes but is not limited to Wi-Fi, Bluetooth or 4G / 5G mobile network. Through these technologies, the remote monitoring center can obtain the state information of the tool mechanism in real time and perform corresponding processing.

[0059] In some examples, the multifunctional crown block includes a tool car guardrail 300, and all the indication components 200 are placed in a conspicuous position 310 of the tool car guardrail 300. For example, the above-mentioned conspicuous position 310 is a position for the operator to observe at any time.

[0060] The multifunctional crown block is equipped with a tool car guardrail 300, which not only effectively ensures the safety of the operator, but also improves the overall performance of the equipment. Specifically, the main functions of the tool car guardrail 300 include preventing material from falling and avoiding the operator from touching the dangerous area by mistake. In addition, the setting of the guardrail can also reduce the wind resistance to a certain extent and improve the stability of the crown block.

[0061] The multifunctional crown block is equipped with a tool car guardrail 300, which not only effectively ensures the safety of the operator, but also improves the overall performance of the equipment. Specifically, the main functions of the tool car guardrail 300 include preventing material from falling and avoiding the operator from touching the dangerous area by mistake. In addition, the setting of the guardrail can also reduce the wind resistance to a certain extent and improve the stability of the crown block.

[0062] The conspicuous indication components 200 help the operator quickly understand the working state of the crown block, so as to make correct operation decisions. When the equipment fails or has safety hazards, the indication components 200 can timely issue an alarm to remind the operator to take countermeasures, thereby avoiding accidents.

[0063] In some examples, the functional mechanism 500 includes four mechanisms, namely an anode mechanism 510, a shell cracking mechanism 520, a pipe mechanism 530 and a grab bucket mechanism 540, and the indication component 200 is an indication light. The indication light is provided with four indication lights, and the four indication lights are respectively electrically connected to the four mechanisms. These mechanisms each undertake different tasks, but can work cooperatively to enable the multifunctional crown block to operate efficiently and stably.

[0064] The anode mechanism 510 is responsible for handling operations related to the anode. The anode plays a key role in many industrial processes, especially in the electrolysis process. Through the anode mechanism 510, the equipment can accurately control parameters such as the position and movement speed of the anode to ensure the smooth progress of the production process.

[0065] The shell breaking mechanism 520 is mainly responsible for breaking or peeling off the shells of certain materials. In some industrial production, the shells of materials may hinder the subsequent processing steps, so the shell breaking mechanism 520 is needed to remove them. The shell breaking mechanism 520 usually adopts high-speed rotation or impact to quickly peel off the shells of materials, so that the subsequent steps can proceed smoothly.

[0066] The material pipe mechanism 530 is responsible for the transportation and management of materials. In the production process, materials need to be transferred between different processes, so the material pipe mechanism 530 is needed to complete this task. The material pipe mechanism 530 usually includes conveying pipes, valves, pumps and other equipment, which can accurately control the flow, direction and other parameters of the materials, ensuring that the materials can be transferred according to the predetermined route and quantity.

[0067] The grab bucket mechanism 540 is responsible for grabbing and moving materials. The grab bucket mechanism 540 usually includes grab buckets, driving devices and other components, which can be flexibly adjusted according to different material characteristics and grabbing requirements. When grabbing materials, the grab bucket mechanism 540 can quickly and accurately grab the materials and move them to the designated position, preparing for the subsequent production steps.

[0068] The indication assembly 200 can better monitor and control the working status of the four mechanisms. In this example, the indication assembly 200 is set as four indicator lights, each of which is electrically connected to the corresponding mechanism. When a mechanism is in working status, the corresponding indicator light will light up, reminding the operator that the mechanism is running. This intuitive indication method can help the operator quickly understand the working status of the equipment and timely discover and handle problems.

[0069] In some examples, the cable connected to the indication assembly 200 is a five-core cable with a length greater than or equal to 4 meters. The five-core cable is composed of five independent wires, each responsible for transmitting different signals or power. The design of the five-core cable makes it meet more complex electrical and signal transmission requirements, and it is widely used in various control systems, sensor networks and data communication fields.

[0070] The requirement that the length of the five-core cable be greater than or equal to 4 meters is based on practical application considerations. The length of 4 meters can ensure that the cable can meet the wiring requirements in most cases, whether it is the distance between connected devices or the passage through obstacles, there is enough stretching space. From the perspective of electrical performance, longer cables can reduce signal attenuation and power loss, ensuring the stability and efficiency of transmission.

[0071] In practical applications, the length of the five-core cable is not fixed. According to different application scenarios and specific requirements, the length of the cable may be adjusted. However, no matter how, it must be ensured that the length of the cable meets the minimum requirement to ensure the normal operation and stable performance of the multifunctional headstock.

[0072] In addition to the length requirement, the selection of the five-core cable also needs to consider other factors such as the material of the cable, the insulation performance, the temperature resistance range, etc. These factors will directly affect the service life, transmission effect and safety of the cable.

[0073] The present application greatly reduces the troubleshooting time of the maintenance personnel. In the past, the maintenance personnel may need to spend a lot of time checking the state of each mechanism one by one, and now they only need to observe the state of the indicator light. This intuitive indication makes troubleshooting more rapid and efficient.

[0074] The implementation of the present application can also reduce the work burden of the night shift personnel. At night, the light condition is poor, and it may be more difficult to observe the state of the tool car mechanism. However, with the help of these indicator lights, the night shift personnel can also easily judge the working state of the tool car, thereby avoiding many possible unsafe situations.

[0075] The application of the present application can also reduce the labor intensity of the maintenance personnel. Since the troubleshooting time is greatly shortened, the maintenance personnel no longer need to perform tedious one-by-one checking work, and can devote more energy to other more complex and important work.

[0076] In general, the implementation of the present application not only can improve the working efficiency of the tool car, but also can greatly improve the working environment and working quality of the maintenance personnel.

[0077] In a second aspect, the present application provides a multifunctional crown block comprising the above-mentioned state indication device of the multifunctional crown block.

[0078] The multifunctional crown block with the above-mentioned state indication device can ensure whether the functional mechanism 500 of the multifunctional crown block reaches the upper limit position, and thus enables the multifunctional crown block to stably and efficiently operate in various working states. Only when all the indication components 200 are in the indication state, the multifunctional crown block can be recognized as normal working. This not only improves the safety of the crown block, but also greatly simplifies the monitoring work of the operator.

[0079] In the drawings of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0080] The above merely provides preferred examples of the present application, and is not used to limit the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A state indicating device of a multi-functional crown block, characterized in that, The multifunctional crown block comprises at least one functional mechanism, the state indicating device is used for monitoring whether the functional mechanism is in an upper limit position, and the state indicating device comprises: A position detecting assembly is partially arranged at the upper limit position of the functional mechanism, the position detecting assembly is used for detecting whether the functional mechanism is in the upper limit position, and one position detecting assembly is arranged corresponding to each functional mechanism; An indicating assembly is electrically connected with the position detecting assembly, and one indicating assembly corresponds to each position detecting assembly; When the functional mechanism is in the upper limit position, the corresponding indicating assembly is in an indicating state, and when all the indicating assemblies are in the indicating state, the multifunctional crown block works normally.

2. The state indicating device of the multifunctional crown block according to claim 1, characterized in that, The at least one functional mechanism comprises at least one of an anode mechanism, a shell beating mechanism, a material pipe mechanism and a grab bucket mechanism.

3. The state indicating device of the multifunctional head sheave according to claim 1, wherein The state indicating device further comprises a total indicating member, and all the indicating assemblies are simultaneously electrically connected with the total indicating member; When all the indicating assemblies are in the indicating state, the total indicating member is in the indicating state, and when any indicating assembly is in a shutdown state, the total indicating member is in the shutdown state.

4. The state indicating device of the multi-functional head sheave according to claim 3, wherein The total indicating member and / or the indicating assembly comprises an indicating lamp, the indicating lamp is extinguished in the shutdown state and is lighted in the indicating state.

5. The state indicating device of the multifunctional head sheave according to claim 1, wherein The multifunctional crown block comprises a tool car guardrail, and all the indicating assemblies are arranged at a conspicuous position of the tool car guardrail.

6. The state indicating device of the multifunctional head sheave according to claim 1, wherein The functional mechanism comprises four mechanisms, namely an anode mechanism, a shell beating mechanism, a material pipe mechanism and a grab bucket mechanism, the indicating assembly is an indicating lamp, four indicating lamps are arranged, and the four indicating lamps are electrically connected with the four mechanisms respectively.

7. The state indicating device of the multifunctional head sheave according to claim 1, wherein The cable connected with the indicating assembly is a five-core cable, and the length of the five-core cable is greater than or equal to 4 m.

8. A multi-functional crown block characterized by, A state indicating device of a multifunctional crown block as claimed in any one of claims 1 to 7.

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