Electric lifting appliance state display system for container, electric lifting appliance and container

Abstract

The utility model provides an electric lifting appliance state display system for a container, an electric lifting appliance and the container. The system comprises a sensor group, a relay group and a display lamp group, wherein each display lamp in the display lamp group is arranged on the display panel; each relay in the relay group comprises a coil and a switch; the sensor group comprises a first sensor, and the first sensor is positioned on a telescopic mechanism, a spin lock mechanism or a lifting pin mechanism of the electric lifting appliance and is used for detecting the state of the mechanism; the relay group comprises a first relay, and the first relay comprises a first coil; the display lamp group comprises a first display lamp; the first sensor is connected with the first display lamp through the first coil and then connected to the two sides of a power source. According to the embodiment of the invention, the state display of the sensor can be realized, and the fault detection efficiency can be improved. The container can be widely applied to the technical field of containers.

Description

Technical Field

[0001] The utility model relates to the technical field of containers, in particular to an electric spreader state display system, an electric spreader and a container for a container. Background Art

[0002] Container cranes are special loading and unloading mechanical equipment widely used in container terminals for loading and unloading containers. At present, container cranes generally use special spreaders for operation, and those driven by electric motors are collectively called electric spreaders. Electric spreaders generally use three-phase AC motors to drive the telescopic mechanism and the rotary locking mechanism, and various sensors are used for state detection. Generally, there are more than 18 sensors distributed at various positions of the spreader. When a fault occurs in the spreader, it is necessary to check the sensors one by one, which is very time-consuming and results in low maintenance efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least to a certain extent one of the technical problems existing in the related art.

[0004] Therefore, an object of an embodiment of the utility model is to provide an efficient electric spreader state display system, an electric spreader and a container for a container, including:

[0005] On the one hand, an embodiment of the utility model provides an electric spreader state display system for a container, including: a sensor group, a relay group and a display lamp group; wherein, each display lamp in the display lamp group is installed on a display panel; each relay in the relay group includes a coil and a switch; the sensor group includes a first sensor and a second sensor, and the first sensor and the second sensor are located in the telescopic mechanism, the rotary locking mechanism or the top pin mechanism of the electric spreader for detecting the mechanism state; the relay group includes a first relay, a second relay and a third relay, the first relay includes a first coil and a first switch, the second relay includes a second coil and a second switch, and the third relay includes a third coil and a third switch; the display lamp group includes a first display lamp, a second display lamp and a third display lamp; after being connected to both sides of a power supply through the first coil, the first sensor is connected to the first display lamp; after being connected in series with the second display lamp through the second coil, the second sensor is connected to both sides of the power supply; after being connected in series with the third coil, the first switch and the second switch are connected to both sides of the power supply; after being connected in series with the third display lamp, the third switch is connected to both sides of the power supply. In the embodiment of the present application, the first display lamp is lit or extinguished according to the detection state of the first sensor; an operator can directly observe the state of the sensor through the display lamp on the display panel. The embodiment of the present application can realize the state display of the sensor, which is beneficial to improving the efficiency of fault detection.

[0006] In addition, the electric spreader status display system for a container according to the above embodiments of the present utility model may further have the following additional technical features:

[0007] Further, in an embodiment of the present utility model, the first sensor is located at the telescopic mechanism of the electric spreader and is used to detect the length status of the telescopic mechanism; the second sensor is located at the twistlock mechanism of the electric spreader and is used to detect the unlocked state or the locked state of the twistlock mechanism; the sensor group includes a fourth sensor, and the fourth sensor is located at the top pin mechanism of the electric spreader and is used to detect the in-place state or the not-in-place state of the top pin mechanism; the relay group includes a fourth relay, and the fourth relay includes a fourth coil; the display lamp group includes a fourth display lamp; after being connected to the fourth display lamp through the fourth coil, the fourth sensor is connected to both sides of the power supply.

[0008] Further, in an embodiment of the present utility model, the sensor group includes a fifth sensor and a sixth sensor. The fifth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the unlocked state of the twistlock mechanism at a first position; the sixth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the unlocked state of the twistlock mechanism at a second position; the relay group includes a fifth relay, a sixth relay, and a seventh relay. The fifth relay includes a fifth coil and a fifth switch; the sixth relay includes a sixth coil and a sixth switch; the seventh relay includes a seventh coil and a seventh switch; the display lamp group includes a fifth display lamp, a sixth display lamp, and a seventh display lamp; after being connected in series with the fifth display lamp through the fifth coil, the fifth sensor is connected to both sides of the power supply; after being connected in series with the sixth display lamp through the sixth coil, the sixth sensor is connected to both sides of the power supply; after being connected in series with the seventh coil, the fifth switch and the sixth switch are connected to both sides of the power supply; after being connected in series with the seventh display lamp, the seventh switch is connected to both sides of the power supply; the seventh display lamp is used to indicate the fully unlocked state.

[0009] Further, in an embodiment of the present utility model, the sensor group includes an eighth sensor and a ninth sensor. The eighth sensor is located at the rotary lock mechanism of the electric sling and is used to detect the locking state of the rotary lock mechanism at a first position; the eighth sensor is located at the rotary lock mechanism of the electric sling and is used to detect the locking and unlocking state of the rotary lock mechanism at a second position; the relay group includes an eighth relay, a ninth relay, and a tenth relay. The eighth relay includes an eighth coil and an eighth switch; the ninth relay includes a ninth coil and a ninth switch; the tenth relay includes a tenth coil and a tenth switch; the display lamp group includes an eighth display lamp, a ninth display lamp, and a tenth display lamp; after being connected in series, the eighth sensor, the eighth coil, and the eighth display lamp are connected to both sides of the power supply; after being connected in series, the ninth sensor, the ninth coil, and the ninth display lamp are connected to both sides of the power supply; after being connected in series, the eighth switch, the ninth switch, and the tenth coil are connected to both sides of the power supply; after being connected in series, the tenth switch and the tenth display lamp are connected to both sides of the power supply; the tenth display lamp is used to indicate the fully locked state.

[0010] Further, in an embodiment of the present utility model, the fourth sensor is used to detect the in-place state or the not-in-place state of the top pin mechanism at a first position; the sensor group includes an eleventh sensor. The eleventh sensor is located at the top pin mechanism of the electric sling and is used to detect the in-place state or the not-in-place state of the top pin mechanism at a second position; the relay group includes an eleventh relay and a twelfth relay. The eleventh relay includes an eleventh coil and an eleventh switch, and the twelfth relay includes a twelfth coil and a twelfth switch; the display lamp group includes an eleventh display lamp and a twelfth display lamp; after being connected in series, the eleventh sensor, the eleventh coil, and the eleventh display lamp are connected to both sides of the power supply; the fourth switch, the eleventh switch, and the twelfth coil are connected in series and then connected to both sides of the power supply; after being connected in series, the twelfth switch and the twelfth display lamp are connected to both sides of the power supply; the twelfth display lamp is used to indicate the full top pin state.

[0011] Further, in an embodiment of the present utility model, the relay group includes a thirteenth relay. The thirteenth relay includes a thirteenth coil and a thirteenth switch; the fourth switch and the twelfth switch are connected in parallel and then connected in series with the thirteenth coil and then connected to both sides of the power supply; after being connected in series, the thirteenth switch and the thirteenth display lamp are connected to both sides of the power supply; the thirteenth display lamp is used to indicate the single top pin state.

[0012] Further, in an embodiment of the present utility model, the sensor group includes a fourteenth sensor for detecting the separation state of the spreader hanger; the relay group includes a fourteenth relay, and the fourteenth relay includes a fourteenth coil; the display lamp group includes a fourteenth display lamp.

[0013] After the fourteenth sensor, the fourteenth coil and the fourteenth display lamp are connected in series, they are connected to both sides of the power supply.

[0014] Further, in an embodiment of the present utility model, the first sensor includes a normally open magnetic induction proximity limit.

[0015] On the other hand, an embodiment of the present application provides an electric spreader, including the above-mentioned electric spreader state display system for containers.

[0016] On the other hand, an embodiment of the present application provides a container, including a crane, and the crane performs loading and unloading operations through the above-mentioned electric spreader.

[0017] The advantages and beneficial effects of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model:

[0018] An electric spreader state display system for containers disclosed in an embodiment of the present application includes: a sensor group, a relay group, and a display lamp group; wherein, each display lamp in the display lamp group is installed on a display panel; each relay in the relay group includes a coil and a switch; the sensor group includes a first sensor located in the telescopic mechanism, the rotary lock mechanism or the top pin mechanism of the electric spreader for detecting the mechanism state; the relay group includes a first relay, and the first relay includes a first coil; the display lamp group includes a first display lamp; after the first sensor is connected to the first display lamp through the first coil, they are connected to both sides of the power supply. In the embodiment of the present application, the first display lamp is lit or extinguished according to the detection state of the first sensor; the operator can directly observe the state of the sensor through the display lamp on the display panel. The embodiment of the present application can realize the state display of the sensor, which is beneficial to improving the efficiency of fault detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the electrical schematic diagram of an embodiment of the connection relationship of the display lamp provided by the present application;

[0020] Figure 2 It is the electrical schematic diagram of an embodiment of the connection relationship of the relay provided by the present application;

[0021] Figure 3Schematic diagram showing the effect of an embodiment of the display panel provided by this application. Detailed implementation manners

[0022] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "upper", "lower", "front", "rear", "left", "right", "top", "inner", "outer", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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, and thus should not be construed as a limitation to the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "arrange", "install", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] A container crane is a special loading and unloading mechanical equipment widely used in container terminals for loading and unloading containers. At present, container cranes generally use special spreaders for operation. Those driven by electric motors are collectively called electric spreaders, which are a very widely used type at present. Electric spreaders generally use three-phase AC motors to drive the telescopic mechanism and the rotary lock mechanism, and use various sensors (mainly magnetic induction proximity switches and mechanical swing arm limiters) for status detection. Generally, there are more than 18 sensors distributed at various positions of the spreader. When a failure occurs in the spreader, it is necessary to check the sensors one by one, which is very time-consuming and results in low maintenance efficiency.

[0026] Therefore, this application proposes an electric spreader status display system for containers, referring to Figure 1The structural schematic diagram of the electric spreader status display system for containers is shown, and the electric spreader status display system for containers proposed in this application is introduced in detail.

[0027] The electric spreader status display system for containers proposed in this application includes: a sensor group, a relay group, and a display lamp group;

[0028] Among them, each display lamp in the display lamp group is installed on the display panel;

[0029] Each relay in the relay group includes a coil and a switch; the sensor group includes a first sensor and a second sensor, and the first sensor and the second sensor are located in the telescopic mechanism, the twist lock mechanism or the top pin mechanism of the electric spreader for detecting the mechanism status; the relay group includes a first relay, a second relay and a third relay, the first relay includes a first coil and a first switch, the second relay includes a second coil and a second switch, and the third relay includes a third coil and a third switch; the display lamp group includes a first display lamp, a second display lamp and a third display lamp;

[0030] After the first sensor is connected to the first display lamp through the first coil, it is connected to both sides of the power supply; after the second sensor is connected in series with the second display lamp through the second coil, it is connected to both sides of the power supply;

[0031] The first switch, the second switch and the third coil are connected in series and then connected to both sides of the power supply; the third switch is connected in series with the third display lamp and then connected to both sides of the power supply.

[0032] In some possible implementation manners, referring to Figure 1 the shown electrical schematic diagram, the first sensor and the second sensor can be any one of S1 to S20, the first coil, the second coil and the third coil are any one of K1 to K20, and the first display lamp is any one of L1 to L20; this application does not make specific restrictions. Referring to Figure 2 As shown, through the first display lamp and the second display lamp, this application can show the detection in-place status of one sensor, and through the third display lamp, show the detection in-place status of all sensors. Of course, the number of sensors in the embodiments of this application can be adjusted according to actual needs. The first sensor and the second sensor are only used to indicate the connection relationship of sensors with different uses and do not limit the number of sensors.

[0033] It should be noted that in some embodiments, the switches of the relays in the embodiments of this application are all normally open contacts. Of course, those skilled in the art can set them as normally closed contacts according to actual needs, and this application does not make specific restrictions. Figure 3Shown is the display panel of the display lamp in the embodiment of the present application. Of course, Figure 3 This belongs to an exemplary example and does not limit the installation position and specific quantity of the display lamp.

[0034] The present application provides a state display system for a special electric spreader for containers, that is, the states of various sensors of the spreader are centrally displayed through the system, and the state information of the spreader is displayed in real time for maintenance personnel, providing great convenience for maintenance work.

[0035] Optionally, for the electric spreader state display system for containers proposed in the present application, the first sensor is located in the telescopic mechanism of the electric spreader and is used to detect the length state of the telescopic mechanism; the second sensor is located in the twistlock mechanism of the electric spreader and is used to detect the unlocking state or locking state of the twistlock mechanism; the sensor group includes a fourth sensor, and the fourth sensor is located in the top pin mechanism of the electric spreader and is used to detect the in-place state or non-in-place state of the top pin mechanism; the relay group includes a fourth relay, and the fourth relay includes a fourth coil; the display lamp group includes a fourth display lamp; after the fourth sensor is connected to the fourth display lamp through the fourth coil, it is connected to both sides of the power supply.

[0036] In some possible implementation manners, referring to Figure 1 as shown, the first sensor is any one of S17 to S18; correspondingly, the first coil is any one of K17 to K18, and the first display lamp is any one of L17 to L18. The second sensor is any one of S1 to S6, S9 to S14, the second coil is any one of K1 to K6, K9 to K14, and the second display lamp is any one of L1 to L6, L9 to L14. The fourth sensor is any one of S7 to S8, S15 to S16, the fourth coil is any one of K7 to K8, K15 to K16, and the fourth display lamp is any one of L7 to L8, K15 to K16. The embodiment of the present application can be used to characterize the states of the telescopic mechanism, twistlock mechanism or top pin mechanism of the electric spreader. Only need to install sensors in the positions that need to be detected, and design the circuit through the Figure 1 and Figure 2 electrical schematic diagram to realize state display and facilitate fault detection.

[0037] Optionally, for the electric spreader status display system for containers proposed in this application, the sensor group includes a fifth sensor and a sixth sensor. The fifth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the unlocking status of the twistlock mechanism at a first position; the sixth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the unlocking status of the twistlock mechanism at a second position; the relay group includes a fifth relay, a sixth relay, and a seventh relay. The fifth relay includes a fifth coil and a fifth switch; the sixth relay includes a sixth coil and a sixth switch; the seventh relay includes a seventh coil and a seventh switch; the display lamp group includes a fifth display lamp, a sixth display lamp, and a seventh display lamp; after the fifth sensor, the fifth coil, and the fifth display lamp are connected in series, they are connected to both sides of the power supply; after the sixth sensor, the sixth coil, and the sixth display lamp are connected in series, they are connected to both sides of the power supply; after the fifth switch, the sixth switch, and the seventh coil are connected in series, they are connected to both sides of the power supply; after the seventh switch and the seventh display lamp are connected in series, they are connected to both sides of the power supply; the seventh display lamp is used to indicate the fully unlocked state.

[0038] In some possible implementation manners, the fifth sensor and the sixth sensor can be any two different sensors among S1 to S3 and S9 to S11; the fifth relay and the sixth relay can be the relays corresponding to the coils connected in series with the selected sensors. Similarly, the fifth display lamp and the sixth display lamp can be the display lamps connected in series with the selected sensors. The seventh coil of the seventh relay is K21, and the seventh switch is KS21; the seventh display lamp is L21. The first position and the second position can be adjusted as needed. Exemplarily, it can be the east sea side, the west land side, etc.

[0039] Optionally, for the electric spreader status display system for containers proposed in this application, the sensor group includes an eighth sensor and a ninth sensor. The eighth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the locking state of the twistlock mechanism at a first position; the eighth sensor is located at the twistlock mechanism of the electric spreader and is used to detect the locking and unlocking state of the twistlock mechanism at a second position; the relay group includes an eighth relay, a ninth relay, and a tenth relay. The eighth relay includes an eighth coil and an eighth switch; the ninth relay includes a ninth coil and a ninth switch; the tenth relay includes a tenth coil and a tenth switch; the display lamp group includes an eighth display lamp, a ninth display lamp, and a tenth display lamp; after the eighth sensor, the eighth coil, and the eighth display lamp are connected in series, they are connected to both sides of the power supply; after the ninth sensor, the ninth coil, and the ninth display lamp are connected in series, they are connected to both sides of the power supply; after the eighth switch, the ninth switch, and the tenth coil are connected in series, they are connected to both sides of the power supply; after the tenth switch and the tenth display lamp are connected in series, they are connected to both sides of the power supply; the tenth display lamp is used to indicate the fully locked state.

[0040] In some possible implementation manners, the eighth sensor and the ninth sensor can be any two different sensors among S4 to S6 and S12 to S14; the eighth relay and the ninth relay can be the relays corresponding to the coils connected in series with the selected sensors. Similarly, the eighth display lamp and the ninth display lamp can be the display lamps connected in series with the selected sensors. The tenth coil of the tenth relay is K22, the tenth switch is KS22; the tenth display lamp is L22.

[0041] Optionally, for the electric spreader status display system for containers proposed in this application, the fourth sensor is used to detect the in-place state or non-in-place state of the top pin mechanism at a first position; the sensor group includes an eleventh sensor, the eleventh sensor is located at the top pin mechanism of the electric spreader and is used to detect the in-place state or non-in-place state of the top pin mechanism at a second position; the relay group includes an eleventh relay and a twelfth relay, the eleventh relay includes an eleventh coil and an eleventh switch, and the twelfth relay includes a twelfth coil and a twelfth switch; the display lamp group includes an eleventh display lamp and a twelfth display lamp; after the eleventh sensor, the eleventh coil, and the eleventh display lamp are connected in series, they are connected to both sides of the power supply; the fourth switch, the eleventh switch, and the twelfth coil are connected in series and then connected to both sides of the power supply; the twelfth switch and the twelfth display lamp are connected in series and then connected to both sides of the power supply; the twelfth display lamp is used to indicate the full top pin state.

[0042] Optionally, for the electric spreader status display system for containers proposed in this application, the relay group includes a thirteenth relay, and the thirteenth relay includes a thirteenth coil and a thirteenth switch; the fourth switch is connected in parallel with the twelfth switch, and then connected in series with the thirteenth coil and connected to both sides of the power supply; the thirteenth switch is connected in series with a thirteenth display lamp and then connected to both sides of the power supply; the thirteenth display lamp is used to indicate the status of the single top pin.

[0043] In some possible implementation manners, the fourth switch is connected in parallel with the twelfth switch, and then connected in series with the thirteenth coil and connected to both sides of the power supply. The specific connection relationship is: the first end of the fourth switch is connected to the first side of the power supply, the first end of the twelfth switch is connected to the first side of the power supply, the second end of the fourth switch is connected to the second end of the twelfth switch, and the second end of the fourth switch is connected to the second side of the power supply through the thirteenth coil.

[0044] Optionally, for the electric spreader status display system for containers proposed in this application, the sensor group includes a fourteenth sensor, and the fourteenth sensor is used to detect the separation status of the spreader hanger; the relay group includes a fourteenth relay, and the fourteenth relay includes a fourteenth coil; the display lamp group includes a fourteenth display lamp;

[0045] The fourteenth sensor, the fourteenth coil and the fourteenth display lamp are connected in series and then connected to both sides of the power supply.

[0046] Optionally, for the electric spreader status display system for containers proposed in this application, the first sensor includes a magnetic induction normally open proximity limit.

[0047] The following describes the status display system provided in this application with a specific embodiment:

[0048] The electric spreader mainly has the 20-foot state and 40-foot state of the telescopic mechanism, the unlocking state and locking state of the rotary lock mechanism, and the top pin in-place state and not-in-place state of the top pin mechanism. All states are detected by sensors, and intermediate relays are set for signal feedback. This application reads the energized and de-energized information from the intermediate relays of each sensor of the electric spreader, senses the energized state and de-energized state of each sensor, and then uniformly displays through the indicator lights on the panel, so as to display the real-time working state of the electric spreader.

[0049] When a certain sensor of the electric spreader checks in place, the corresponding intermediate relay is energized and lights up. The auxiliary normally open point of the intermediate relay is energized and connected, and the signal is fed back to the indicator light on the spreader status display panel. When the indicator light lights up, it can be known that the current corresponding sensor has detected in place.

[0050] When a certain sensor of the electric spreader fails to detect in place, the sensor is in a non-conductive and energized state, the corresponding intermediate relay is de-energized, the auxiliary normally open point of the intermediate relay is disconnected, and the indicator light on the spreader status display panel does not light up, indicating that the corresponding sensor has not detected in place currently.

[0051] This application is implemented using a display panel, indicator lights, intermediate relays, resistor-capacitor components, and control circuits.

[0052] As Figure 1 In the schematic diagram, the sensor selects a normally open magnetic induction proximity limit switch. When the unlocking detection sensor S1 on the east sea side detects in place, S1 is energized and conducts, the coil of the corresponding intermediate relay K1 is energized and conducts, and the indicator light L1 corresponding to the intermediate relay K1 is energized and lights up, indicating that the unlocking on the east sea side is in place currently. When all the unlocking detection sensors detect in place, the unlocking indicator lights L1, L2, L3, L9, L10, and L11 all light up. At this time, the full-unlocking indicator light L21 will also light up simultaneously, indicating that the rotary lock mechanism unlocks normally. When the indicator light L21 does not light up, check which one of L1, L2, L3, L9, L10, and L11 does not light up, and repair the corresponding sensor or mechanism.

[0053] Similarly, when the locking indicator lights L4, L5, L6, L12, L13, and L14 all light up, the full-locking indicator light L22 will also light up simultaneously, indicating that the rotary lock mechanism locks normally. When the indicator light L22 does not light up, check which one of L4, L5, L6, L12, L13, and L14 does not light up, and repair the corresponding sensor or mechanism.

[0054] As Figure 1 In the schematic diagram, when the 20-foot position detection sensor S17 detects in place, the corresponding indicator light L17 lights up, indicating that the spreader telescopic mechanism is in the 20-foot state; when the 40-foot position detection sensor S18 detects in place, the corresponding indicator light L18 lights up, indicating that the spreader telescopic mechanism is in the 40-foot state. If the indicator light L17 or L18 does not light up, repair the corresponding sensor or mechanism.

[0055] When the top pin in-place detection sensors S7, S8, S15, and S16 detect in place, the corresponding indicator lights L7, L8, L15, and L16 light up, indicating that the corresponding top pins have reached the in-place position. When one of the 4 indicator lights L7, L8, L15, and L16 lights up, the single-top-pin indicator light L23 lights up; when the 4 indicator lights L7, L8, L15, and L16 light up simultaneously, the full-top-pin indicator light L24 lights up, indicating that all the top pins have reached the in-place position.

[0056] This application has strong practicability. When a failure occurs in the electric spreader, maintenance personnel can clearly grasp the real-time status of each sensor through this application, check the sensors or mechanisms with abnormal status, without having to check one by one, which provides convenience for maintenance personnel and greatly improves the maintenance efficiency. It has strong popularization potential.

[0057] The system provided by the embodiment of this application includes: a sensor group, a relay group, and a display lamp group; wherein, each display lamp in the display lamp group is installed on a display panel; each relay in the relay group includes a coil and a switch; the sensor group includes a first sensor, and the first sensor is located in the telescopic mechanism, rotary lock mechanism, or top pin mechanism of the electric spreader for detecting the mechanism status; the relay group includes a first relay, and the first relay includes a first coil; the display lamp group includes a first display lamp; after being connected through the first coil between the first sensor and the first display lamp, it is connected to both sides of the power supply. Through the detection status of the first sensor in the embodiment of this application, the first display lamp is lit or extinguished; the operator can directly observe the status of the sensor through the display lamp on the display panel. The embodiment of this application can realize the status display of the sensor, which is beneficial to improving the efficiency of fault detection.

[0058] On the other hand, the embodiment of this application provides an electric spreader, including the above-mentioned electric spreader status display system for containers.

[0059] On the other hand, the embodiment of this application provides a container, including a crane, and the crane performs loading and unloading operations through the above-mentioned electric spreader.

[0060] In the description of this specification, the descriptions referring to terms such as "one embodiment", "another embodiment", or "certain embodiments" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A status display system for electric spreaders of containers, characterized in that: The system comprises: a sensor group, a relay group and a display light group; Wherein, each display light in the display light group is mounted on the display panel; Each relay in the relay group includes a coil and a switch; the sensor group includes a first sensor and a second sensor, the first sensor and the second sensor are located in the telescopic mechanism, the rotary lock mechanism or the ejector mechanism of the electric spreader, and are used to detect the mechanism status; the relay group includes a first relay, a second relay and a third relay, the first relay includes a first coil and a first switch, the second relay includes a second coil and a second switch, and the third relay includes a third coil and a third switch; the display light group includes a first display light, a second display light and a third display light; The first sensor is connected to the first display light through the first coil and then connected to both sides of the power supply; the second sensor is connected in series with the second display light through the second coil and then connected to both sides of the power supply; The first switch, the second switch and the third coil are connected in series and then connected to both sides of the power supply; the third switch and the third display light are connected in series and then connected to both sides of the power supply.

2. The electric spreader status display system for containers according to claim 1, characterized in that: The first sensor is located at the telescopic mechanism of the electric hoist, and is used to detect the length state of the telescopic mechanism; the second sensor is located at the rotary lock mechanism of the electric hoist, and is used to detect the unlocked state or locked state of the rotary lock mechanism; the sensor group includes a fourth sensor, and the fourth sensor is located at the push pin mechanism of the electric hoist, and is used to detect the in-place state or out-of-place state of the push pin mechanism; the relay group includes a fourth relay, and the fourth relay includes a fourth coil; the display light group includes a fourth display light; the fourth sensor is connected to the fourth display light through the fourth coil, and then connected to both sides of the power supply.

3. The electric spreader status display system for containers according to claim 1, characterized in that: The sensor group includes a fifth sensor and a sixth sensor, the fifth sensor is located in the rotary lock mechanism of the electric hoist, and is used to detect the unlocking state of the rotary lock mechanism at the first position; the sixth sensor is located in the rotary lock mechanism of the electric hoist, and is used to detect the unlocking state of the rotary lock mechanism at the second position; the relay group includes a fifth relay, a sixth relay and a seventh relay, the fifth relay includes a fifth coil and a fifth switch; the sixth relay includes a sixth coil and a sixth switch; the seventh relay includes a seventh coil and a seventh switch; the display light group includes a fifth display light, a sixth display light and a seventh display light; the fifth sensor, the fifth coil and the fifth display light are connected in series and are connected to both sides of the power supply; the sixth sensor, the sixth coil and the sixth display light are connected in series and are connected to both sides of the power supply; the fifth switch, the sixth switch and the seventh coil are connected in series and are connected to both sides of the power supply; the seventh switch and the seventh display light are connected in series and are connected to both sides of the power supply; the seventh display light is used to indicate a fully unlocked state.

4. The electric spreader status display system for containers according to claim 1, characterized in that: The sensor group includes an eighth sensor and a ninth sensor, the eighth sensor is located in the rotary lock mechanism of the electric hoist, and is used to detect the locked state of the rotary lock mechanism at the first position; the eighth sensor is located in the rotary lock mechanism of the electric hoist, and is used to detect the open and closed locked state of the rotary lock mechanism at the second position; the relay group includes an eighth relay, a ninth relay and a tenth relay, the eighth relay includes an eighth coil and an eighth switch; the ninth relay includes a ninth coil and a ninth switch; the tenth relay includes a tenth coil and a tenth switch; the display light group includes an eighth display light, a ninth display light and a tenth display light; the eighth sensor, the eighth coil and the eighth display light are connected in series and are connected to both sides of the power supply; the ninth sensor, the ninth coil and the ninth display light are connected in series and are connected to both sides of the power supply; the eighth switch, the ninth switch and the tenth coil are connected in series and are connected to both sides of the power supply; the tenth switch and the tenth display light are connected in series and are connected to both sides of the power supply; the tenth display light is used to indicate a fully locked state.

5. The electric spreader status display system for containers according to claim 2, characterized in that: The fourth sensor is used to detect the in-position state or out-of-position state of the ejector mechanism at the first position; the sensor group includes an eleventh sensor, the eleventh sensor is located at the ejector mechanism of the electric lifter, and is used to detect the in-position state or out-of-position state of the ejector mechanism at the second position; the relay group includes an eleventh relay and a twelfth relay, the eleventh relay includes an eleventh coil and an eleventh switch, and the twelfth relay includes a twelfth coil and a twelfth switch; the display light group includes an eleventh display light and a twelfth display light; the eleventh sensor, the eleventh coil and the eleventh display light are connected in series and then connected to both sides of the power supply; the fourth switch, the eleventh switch and the twelfth coil are connected in series and then connected to both sides of the power supply; the twelfth switch and the twelfth display light are connected in series and then connected to both sides of the power supply; the twelfth display light is used to indicate the full ejector state.

6. The electric spreader status display system for containers according to claim 5, characterized in that: The relay group includes a thirteenth relay, and the thirteenth relay includes a thirteenth coil and a thirteenth switch; the fourth switch is connected in parallel with the twelfth switch, and then connected in series with the thirteenth coil, and then connected to both sides of the power supply; the thirteenth switch is connected in series with the thirteenth display light, and then connected to both sides of the power supply; the thirteenth display light is used to indicate the single top pin state.

7. The electric spreader status display system for containers according to claim 1, characterized in that: The sensor group includes a fourteenth sensor, and the fourteenth sensor is used to detect the separation state of the sling hanger; the relay group includes a fourteenth relay, and the fourteenth relay includes a fourteenth coil; the display light group includes a fourteenth display light; the fourteenth sensor, the fourteenth coil and the fourteenth display light are connected in series and then connected to both sides of the power supply.

8. The electric spreader status display system for containers according to claim 1, characterized in that: The first sensor includes a magnetic induction normally open proximity limit.

9. An electric spreader, characterized in that: The invention comprises an electric spreader status display system for a container as claimed in any one of claims 1 to 8.

10. A container, characterized in that: It comprises a crane, which performs loading and unloading operations by means of the electric spreader as claimed in claim 9.

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