Container lifting appliance for port

Abstract

The utility model discloses a container lifting appliance for a port, which relates to the technical field of lifting equipment and comprises a lifting appliance body, four rotary lock catches, four rotary plug-ins and a controller. According to the container lifting appliance for the port, the four rotating inserting pieces are arranged, after the lifting appliance body is connected with a container through the rotating lock catches, in the lifting process, the controller starts driving motors in the rotating inserting pieces and drives rotating shafts to rotate, and therefore inserting rods are driven to rotate; when the four inserting rods can rotate to corner fitting holes in the bottom of the container, the bottom of the container is completely separated from the transport vehicle; and when at least one of the four inserting rods does not rotate to the corner fitting hole in the bottom of the container, the bottom of the container is not completely separated from the transport vehicle. The rotation state of the insertion rod can be judged in the container hoisting process, so that the separation condition of the bottom of the container and the transport vehicle is detected, the operation safety is ensured, and the accident occurrence probability is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, in particular to a container spreader for port. BACKGROUND

[0002] The port spreader is an indispensable part of port logistics, mainly used for loading and unloading goods in the port, especially heavy goods such as containers. Usually, the top and bottom of the container are provided with corner fitting holes. When the container needs to be installed on a transport vehicle, the transport vehicle is inserted into the corner fitting hole at the bottom of the container through a twist lock to complete the fixation with the container. When the port spreader is used to hoist the container, the container is first transported by the transport vehicle to the designated position of the port, and then the corner fitting hole at the bottom of the container is completely separated from the twist lock of the transport vehicle. After the container and the transport vehicle are separated, the operator controls the port spreader to move above the container and connects with the corner fitting hole at the top of the container through a connecting component, thereby completing the hoisting of the container by the port spreader.

[0003] In the prior art, when the port spreader is used to hoist the container, the port spreader may be connected to the top of the container, but the bottom of the container is not completely separated from the transport vehicle, which may cause the container and the transport vehicle to be hoisted together when the port spreader is hoisted, thereby causing serious safety accidents. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application aims to solve the problem that the container and the transport vehicle are hoisted together when the port spreader is hoisted due to the incomplete separation of the container from the transport vehicle.

[0005] To solve the above technical problems, the present application provides a container spreader for port, which comprises a spreader body, four rotating locks, four rotating inserts and a controller. The top of the spreader body is connected with an external hoisting machine, the four rotating locks are respectively inserted into the four corners of the spreader body, and the four rotating inserts are respectively connected with the four corners of the spreader body. Each rotating insert comprises a connecting rod, an inserting rod, a rotating shaft, a cover and a driving motor. The side of the upper end of the connecting rod is connected with one corner of the spreader body, the lower end of the connecting rod is provided with a first recess, the driving motor is fixedly connected with the connecting rod, the output end of the driving motor is connected with the rotating shaft, the inner side of the first recess is provided with a second recess matched with the shape of the rotating shaft, the rotating shaft is rotatably connected in the second recess, the bottom of the rotating shaft is fixedly connected with the inserting rod, and the inserting rod can be rotated to the corner fitting hole at the bottom of the container. The inner side of the cover is provided with a third recess matched with the shape of the rotating shaft, the cover is arranged at the first recess, and the cover is detachably connected with the connecting rod. The driving motor is electrically connected with the controller.

[0006] Preferably, each of the rotating inserts further comprises a fourth groove, an induction switch, an induction sheet and a display, the fourth groove is formed on the connecting rod and communicates with the second groove, the induction switch is arranged in the fourth groove, and the bottom of the induction sheet is connected with the rotating shaft; when the inserting rod is rotated to the hole of the bottom corner piece of the container, the top of the induction sheet is rotated to the induction position of the induction switch; the induction switch and the display are electrically connected with the controller.

[0007] Preferably, each of the rotating inserts further comprises a warning light, the warning light is fixedly connected with the top of the connecting rod, and the warning light is electrically connected with the controller.

[0008] Preferably, each of the rotating inserts further comprises a first transmission gear and a second transmission gear, the first transmission gear is sleeved on the rotating shaft, the second transmission gear is connected with the output end of the driving motor, and the first transmission gear is in meshing connection with the second transmission gear.

[0009] Preferably, the shaft body of the rotating shaft is provided with at least one protrusion.

[0010] Preferably, the bottom surface of the protrusion is a horizontal plane.

[0011] In summary, the present application has at least one of the following beneficial technical effects:

[0012] The container lifting device for port provided by the present application can detect the disengagement of the bottom of the container from the transport vehicle by judging the rotating state of the inserting rod during the lifting of the container, thereby ensuring the safety of the operation and reducing the probability of accidents.

[0013] In summary, the present application provides a container lifting device for port which can detect the disengagement of the bottom of the container from the transport vehicle by judging the rotating state of the inserting rod during the lifting of the container, thereby ensuring the safety of the operation and reducing the probability of accidents. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the content of the present application more easily understood, the present application is further described in detail below according to specific embodiments of the present application and in conjunction with the accompanying drawings, in which:

[0015] Figure 1 is a structural schematic diagram of the container spreader for port in the preferred embodiment of the present application;

[0016] Figure 2 is Figure 1 is a partial enlarged view at A shown in the figure;

[0017] Figure 3 is an exploded schematic diagram of the rotating insert in the preferred embodiment of the present application.

[0018] The description of the figures of the drawings is as follows: 1, spreader body; 2, rotating lock; 3, rotating insert; 301, connecting rod; 302, insert rod; 303, rotating shaft; 304, cover body; 305, driving motor; 306, first groove; 307, second groove; 308, fourth groove; 309, induction switch; 310, induction sheet; 311, warning light; 312, first transmission gear; 313, second transmission gear; 314, protrusion. DETAILED DESCRIPTION

[0019] The present application is further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it, but the embodiments are not limiting to the present application.

[0020] Referring to Figures 1 to 3 , the present application discloses a container spreader for port, which comprises a spreader body 1, four rotating locks 2, four rotating inserts 3 and a controller (not shown in the figure), the top of the spreader body 1 is connected with an external hoisting machine, the four rotating locks 2 are respectively inserted at the four corners of the spreader body 1, and the four rotating inserts 3 are respectively connected with the four corners of the spreader body 1; each rotating insert 3 comprises a connecting rod 301, an insert rod 302, a rotating shaft 303, a cover body 304 and a driving motor 305, one side surface of the upper end of the connecting rod 301 is connected with one corner of the spreader body 1, a first groove 306 is formed on one side surface of the lower end of the connecting rod 301, the driving motor 305 is fixedly connected with the connecting rod 301, the output end of the driving motor 305 is connected with the rotating shaft 303, a second groove 307 matching the shape of the rotating shaft 303 is formed on the inner side surface of the first groove 306, the rotating shaft 303 is rotatably connected in the second groove 307, the bottom of the rotating shaft 303 is fixedly connected with the insert rod 302, and the insert rod 302 can be rotated to the bottom corner piece hole of the container; a third groove matching the shape of the rotating shaft 303 is formed on the inner side surface of the cover body 304, the cover body 304 is covered at the first groove 306, and the cover body 304 is detachably connected with the connecting rod 301; and the driving motor 305 is electrically connected with the controller.

[0021] Specifically, the type of the insertion rod 302 is not limited in the present application, which can be a horizontal rod or an L-shaped rod, and the L-shaped rod is adopted in the embodiment. The detachable connection manner of the cover 304 and the connecting rod 301 is not limited in the present application, and the bolt connection is adopted in the embodiment.

[0022] By arranging the four rotating inserts 3, the four rotating inserts 3 are connected with the four corners of the hoist body 1. When the rotating shaft 303 in the rotating insert 3 is not rotated, the insertion rod 302 has not been rotated to the bottom corner hole of the container. After the external hoisting machine moves the hoist body 1 to be positioned with the container, the four rotating locks 2 are connected with the corner holes on the top of the container, and the external hoisting machine is hoisted. During the hoisting process, the controller starts the driving motor 305 in the rotating insert 3 to drive the rotating shaft 303 to rotate, thereby driving the insertion rod 302 to rotate. When the four insertion rods 302 are all rotated to the bottom corner hole of the container, it is proved that the bottom of the container is completely separated from the transport vehicle, and the external hoisting machine can continue to be hoisted. When at least one of the four insertion rods 302 is not rotated to the bottom corner hole of the container, it is proved that the bottom of the container is not completely separated from the transport vehicle, and the operator controls the external hoisting machine to stop hoisting.

[0023] By arranging the rotating insert 3, the rotating insert 3 can detect the separation condition of the bottom of the container and the transport vehicle during the hoisting process, which ensures the safety of the operation and avoids accidents.

[0024] Further, when the four insertion rods 302 are all rotated to the bottom corner hole of the container, the two insertion rods 302 located on the diagonal line should be in the same straight line.

[0025] In the embodiment, preferably, each rotating insert 3 further comprises a fourth groove 308, an induction switch 309, an induction sheet 310 and a display (not shown in the figure). The fourth groove 308 is arranged on the connecting rod 301 and communicates with the second groove 307. The induction switch 309 is arranged in the fourth groove 308, and the bottom of the induction sheet 310 is connected with the rotating shaft 303. When the insertion rod 302 is rotated to the bottom corner hole of the container, the top of the induction sheet 310 is rotated to the induction position of the induction switch 309. The induction switch 309 and the display are both electrically connected with the controller.

[0026] In the specific embodiment, when the rotating shaft 303 rotates and the four insertion rods 302 are rotated to the bottom corner hole of the container, the top of the induction sheet 310 is rotated to the induction position of the induction switch 309. The induction switch 309 detects the induction signal and transmits it to the controller. The controller transmits the information to the display for display. The operator operates the external hoisting machine according to the information displayed on the display to determine whether the external hoisting machine continues to operate.

[0027] By setting the inductive switch 309, the inductive sheet 310 and the display, the operator can more timely and accurately know the disengagement of the container bottom from the transport vehicle and make a response, effectively improving the operation safety.

[0028] As an implementation form, the inductive sheet 310 in the application is connected at the top eccentric position of the rotating shaft 303, and the inductive switch 309 is connected at the top of the fourth groove 308.

[0029] In the embodiment, preferably, each rotating insert 3 further comprises a warning light 311 fixedly connected to the top of the connecting rod 301, and the warning light 311 is electrically connected to the controller.

[0030] In the specific embodiment, when the controller receives the signal sent by any inductive switch 309, it can be judged that the corresponding plug rod 302 has been rotated into place, and the controller controls the corresponding warning light 311 to light up.

[0031] By setting the warning light 311, it is more convenient for the operator to judge the disengagement of the container bottom from the transport vehicle, and if it is found that there are less than four warning lights 311 lighting up, the fault position of the connection of the container bottom and the transport vehicle can also be found in time.

[0032] In the embodiment, preferably, each rotating insert 3 further comprises a first transmission gear 312 and a second transmission gear 313, the first transmission gear 312 is sleeved on the rotating shaft 303, the second transmission gear 313 is connected with the output end of the driving motor 305, and the first transmission gear 312 is in meshing connection with the second transmission gear 313.

[0033] In the specific embodiment, the controller controls the driving motor 305 to start and drive the second transmission gear 313 to rotate, and the second transmission gear 313 drives the first transmission gear 312 to mesh transmission, so as to realize the rotation of the rotating shaft 303.

[0034] The driving motor 305 drives the first transmission gear 312 and the second transmission gear 313 to transmit, so that the transmission process is more stable and reliable.

[0035] In the embodiment, preferably, the shaft body of the rotating shaft 303 is provided with at least one protrusion 314.

[0036] Specifically, the number of protrusions 314 in the application is not limited, and the number of protrusions 314 in the embodiment is two.

[0037] When at least one of the four rotating shackles 2 is loosened from the corner fitting hole of the container top during the lifting process, the vertical downward force exerted by the container can easily cause the rotating shaft 303 to fall off from the connecting rod 301, and the setting of the protrusion 314 on the shaft body of the rotating shaft 303 can effectively prevent the disengagement between the rotating shaft 303 and the connecting rod 301, and can also provide effective support for the container.

[0038] In the embodiment, the bottom surface of the protrusion 314 is preferably a horizontal plane.

[0039] When the rotating shackle 2 is disengaged from the corner fitting hole of the container top, the vertical downward force is exerted on the rotating shaft 303 due to the gravity of the container, and the bottom surface of the protrusion 314 is set as a horizontal plane in the application, which can increase the contact area between the rotating shaft 303 and the inside of the connecting rod 301, and further increase the support force provided by the rotating shaft 303 and the insertion rod 302 for the container.

[0040] The implementation principle of the embodiment of the application is as follows: after the external hoisting machine is connected with the top of the lifting device body 1, the operator controls the external hoisting machine to start lifting, at this time, the four insertion rods 302 are located away from the corner fitting hole of the container bottom; during the lifting process, the controller drives the four drive motors 305 to start, and the four drive motors 305 respectively drive the four rotating shafts 303 located in the connecting rod 301 to rotate, and simultaneously drive the insertion rod 302 to rotate, at this time, the four insertion rods 302 are all moved towards the corner fitting hole of the container bottom; when the controller receives the signal sent by the four sensing switches 309, it is proved that the four insertion rods 302 are all rotated to the corner fitting hole of the container bottom, and the container bottom has been completely separated from the transport vehicle, and the controller transmits the signal to the display and controls the four warning lights 311 to be lit; when the signal received by the controller is less than four, it is proved that at least one of the four insertion rods 302 has not been rotated to the corner fitting hole of the container bottom, at this time, the container bottom has not been completely separated from the transport vehicle, and the controller transmits the signal to the display and controls the corresponding warning light 311 to be lit, and the warning light 311 corresponding to the insertion rod 302 which has not been rotated to the corner fitting hole of the container bottom will not be lit, and the operator stops the lifting operation; the operator can know the separation condition of the container bottom from the transport vehicle through the display, or can know the separation condition of the container bottom from the transport vehicle through the observation of the warning light 311, and timely controls the operation or stop of the external hoisting machine.

[0041] In summary, the container lifting device provided by the application can detect the separation condition of the container bottom from the transport vehicle during the lifting process, timely feedback the continue or stop information of the lifting process, ensure the safety of the operation, and avoid the occurrence of accidents.

[0042] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A container spreader for use in a port, characterized in that Include: The spreader body (1), four rotating locks (2), four rotating inserts (3) and a controller, the top of the spreader body (1) is connected with external hoisting machinery, four rotating locks (2) are respectively inserted at the four corners of the spreader body (1), four rotating inserts (3) are respectively connected with the four corners of the spreader body (1); Each rotating insert (3) includes a connecting rod (301), a plug rod (302), a rotating shaft (303), a cover (304) and a drive motor (305), one side of the upper end of the connecting rod (301) is connected with one corner of the spreader body (1), a first groove (306) is formed on one side of the lower end of the connecting rod (301), the drive motor (305) is fixedly connected with the connecting rod (301), the output end of the drive motor (305) is connected with the rotating shaft (303), a second groove (307) matching the shape of the rotating shaft (303) is formed on the inner side of the first groove (306), the rotating shaft (303) is rotatably connected in the second groove (307), the bottom of the rotating shaft (303) is fixedly connected with the plug rod (302), and the plug rod (302) can be rotated to the bottom corner piece hole of the container; a third groove matching the shape of the rotating shaft (303) is formed on the inner side of the cover (304), the cover (304) covers the first groove (306), and the cover (304) is detachably connected with the connecting rod (301); The drive motor (305) is electrically connected with the controller.

2. A container spreader for use in a port according to claim 1, characterized in that: Each rotating insert (3) further includes a fourth groove (308), an induction switch (309), an induction sheet (310) and a display, the fourth groove (308) is formed on the connecting rod (301) and communicates with the second groove (307), the induction switch (309) is arranged in the fourth groove (308), and the bottom of the induction sheet (310) is connected with the rotating shaft (303); When the plug rod (302) is rotated to the bottom corner piece hole of the container, the top of the induction sheet (310) is rotated to the induction position of the induction switch (309); The induction switch (309) and the display are both electrically connected with the controller.

3. A container spreader for use in a port according to claim 2, characterized in that: Each rotating insert (3) further includes a warning light (311), the warning light (311) is fixedly connected with the top of the connecting rod (301), and the warning light (311) is electrically connected with the controller.

4. A container spreader for use in a port according to claim 1, characterized in that: Each rotating insert (3) further includes a first transmission gear (312) and a second transmission gear (313), the first transmission gear (312) is sleeved on the rotating shaft (303), the second transmission gear (313) is connected with the output end of the drive motor (305), and the first transmission gear (312) is meshedly connected with the second transmission gear (313).

5. A container spreader for use in a port according to claim 1, characterized in that: The shaft body of the rotating shaft (303) is provided with at least one protrusion (314).

6. A container spreader for use in a port according to claim 5, characterized in that: The bottom surface of the protrusion (314) is a horizontal plane.

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