A ship unloader operation method

Abstract

The present invention discloses a ship unloader operation method, and the present invention relates to the technical field of ship unloaders. The ship unloader operation is completed by the cooperation of a multi-stage clamping spreader, a rectangular frame, a pull block seat, an alignment mechanism, a locking tongue, a linkage mechanism, a positioning and locking mechanism, an auxiliary clamping mechanism and an additional clamping mechanism. The multi-stage clamping spreader includes a rectangular frame with a cavity inside, a pull block seat arranged directly above the fixed frame, and a secondary cable fixedly connected to the upper end face of the pull block seat. Additional clamping mechanisms for clamping and fixing the left and right sides of the container are arranged on the opposite left and right sides of the rectangular frame to further enhance the stability during the clamping of the container. After the initial clamping, the auxiliary clamping mechanism and the additional clamping mechanism provide additional locking and support, improving the connection firmness between the container and the spreader, reducing the risk of dropping caused by unstable clamping. At the same time, the additional clamping mechanism disperses the weight from the side, reduces the single-point force, prevents local overload and premature wear or failure of the locking tongue plate and the buckle, and further improves the connection stability.

Description

Technical Field

[0001] The present invention relates to the technical field of ship loaders, and specifically to a ship loader operation method. Background Art

[0002] A ship loader is a large bulk material handling machine used for loading ships at bulk material terminals and plays a crucial role in modern ports and industrial logistics. Among them, container ship loaders are the most widely used, with advantages such as high efficiency, large load capacity, precise positioning, and high degree of automation. The existing container ship loader operation methods mainly include steps such as clamping the container, moving the container, placing the container, and repeating the loading and unloading. Among them, clamping the container is the most important step. Clamping the container mainly relies on the container spreader for clamping operations. The clamping degree of the container spreader on the container and the stability during the moving process are crucial.

[0003] However, currently, the container is mainly lifted by the mutual clamping of the tongue plate on the spreader and the buckle on the container. The connection method of the spreader to the container is relatively single. During long-term use, the tongue plate and the buckle will gradually wear due to repeated opening and closing, friction, and load-bearing, reducing the connection reliability and increasing the possibility of failures. Moreover, when carrying heavy objects with a single connection method, the pressure may not be evenly distributed, resulting in excessive stress at some points and further increasing the risk of clamping failure. Summary of the Invention

[0004] The present invention provides a ship loader operation method, which solves the technical problems that currently the spreader mainly uses a single clamping method of the tongue plate and the container buckle for lifting. During long-term use, the tongue plate and the buckle are worn due to repeated opening and closing, friction, and load-bearing, reducing the connection reliability and increasing the risk of failures. In addition, the single connection method cannot evenly distribute the pressure when carrying heavy objects, resulting in excessive local stress and further increasing the possibility of clamping failure.

[0005] The ship loader operation method provided by the present invention is specifically as follows:

[0006] S1. Clamp the container: Control a multi-stage clamping spreader by the ship loader to clamp the container.

[0007] S2. Move the container: The ship loader controls the multi-stage clamping spreader to lift the container from the ground to an appropriate height and then smoothly move it towards the ship.

[0008] S3. Place the container: When the multi-stage clamping spreader approaches the placement position of the ship, the ship loader controls the multi-stage clamping spreader to slowly place the container at the required placement position, and the container spreader releases the container.

[0009] S4. Repeat the loading and unloading: Complete the loading operation of all required containers according to the above steps.

[0010] The ship loader operation method steps in the above S1 - S4 need to be completed in cooperation with a multi - stage clamping spreader, a rectangular frame, a pull - block seat, a positioning mechanism, a rotating column, a locking tongue, a linkage mechanism, a positioning and locking mechanism, an auxiliary clamping mechanism, and an additional clamping mechanism.

[0011] The multi - stage clamping spreader includes a rectangular frame with a cavity inside, a fixed frame fixedly connected to the rectangular frame, a pull - block seat arranged directly above the fixed frame, a main cable fixedly connected to the upper end face of the fixed frame and passing through and slidingly connecting the pull - block seat, and a secondary cable fixedly connected to the upper end face of the pull - block seat. At the middle of the upper end faces of the front and rear ends and on the upper end faces of the left and right sections of the rectangular frame, there are positioning mechanisms for positioning itself to ensure that the rectangular frame can be accurately connected to the container. There are two positioning mechanisms on the left and right sections of the rectangular frame, which are symmetrically arranged left and right. At the four corners of the rectangular frame, there are rotating columns rotatably connected through. The lower end of the rotating column is fixedly connected with a locking tongue, and there are symmetrically arranged clamping openings on the left and right of the locking tongue. Between the rotating column and the positioning mechanism, there is a linkage mechanism for driving the locking tongue to rotate so that the containers can be clamped together. Outside the rotating column, there is a positioning and locking mechanism for limiting the locking tongue so that it can rotate normally only when it is completely clamped with the container. Between each locking tongue and the rectangular frame, there is an auxiliary clamping mechanism for further enhancing the clamping stability between the locking tongue and the container. On the opposite sides of the left and right of the rectangular frame, there are additional clamping mechanisms for clamping and tightening the left and right sides of the container to further enhance the stability during container clamping.

[0012] In a possible implementation manner, the positioning mechanism includes a support plate fixedly connected to the upper end face of the rectangular frame and a rotating cylinder hinged to the support plate through a rotating shaft and a torsion spring. A pull rope is wound and fixedly connected to the outside of the rotating cylinder. The end of the pull rope away from the rotating cylinder is fixedly connected to the outside of the pull - block seat. A folded guiding plate is fixedly connected to the outside of the rotating cylinder. The lower part of the folded guiding plate is symmetrically provided with inclined slots. A guide roller is slidably connected between the two inclined slots through a sliding column, and a top spring is fixedly connected to the upper part of the inclined slot.

[0013] In a possible implementation manner, the linkage mechanism includes a portal inner frame slidably connected to the upper end face of the rectangular frame through a connecting telescopic column. Helical grooves are symmetrically arranged on the outside of the rotating column. On the opposite sides of the vertical sections of the portal inner frame, there are lifting columns fixedly connected and slidably arranged in the helical grooves. A pulling and moving assembly is provided between the portal inner frame and the rotating cylinder.

[0014] In a possible implementation, the pulling and moving component includes a sliding groove formed on the opposite sides of the vertical sections of the portal inner frame, a slider slidably connected in the sliding groove, and a portal outer frame fixedly connected to the upper end faces of the two sliders and slidably sleeved outside the portal inner frame. The upper end face of the portal outer frame is hinged with a connecting rod through a lug, and one end of the connecting rod away from the lug is hinged on a rotating cylinder through a connecting column. A limiting spring is fixedly connected to the upper groove wall of the sliding groove.

[0015] In a possible implementation, the auxiliary clamping mechanism includes two installation grooves symmetrically formed on the left and right in the tongue and communicating with the bayonet. A V-shaped clamping frame is slidably connected in the installation groove. A compression spring is fixedly connected between the V-shaped clamping frame and the installation groove. A top-moving component for driving the V-shaped clamping frame to move is jointly arranged between the tongue and the rectangular frame.

[0016] In a possible implementation, the top-moving component includes two Z-shaped grooves symmetrically formed on the tongue corresponding to and communicating with the installation groove. A Z-shaped top rod is slidably connected in the Z-shaped groove. Arc-shaped bumps matched with the Z-shaped top rod are symmetrically fixedly connected to the lower end face of the rectangular frame.

[0017] In a possible implementation, the positioning and locking mechanism includes a limiting combined groove formed on the outside of the rotating column and an L-shaped limiting sliding plate penetrating and slidably connected to the lower bottom plate of the rectangular frame and slidably arranged in the limiting combined groove. The limiting combined groove is composed of a vertical groove formed along the axis of the rotating column and an annular groove formed on the outside of the rotating column and communicating with the vertical groove. The horizontal section of the L-shaped limiting sliding plate is slidably connected in the limiting combined groove. A linkage component is jointly arranged on the outside of the rotating column.

[0018] In a possible implementation, the linkage component includes an open ring sleeve fixedly connected to the outside of the rotating column. A transmission belt is jointly rotatably connected to the outside of the open ring sleeve.

[0019] In a possible implementation, the card-increasing mechanism includes an installation box fixedly connected to the side end face of the rectangular frame. Guide grooves are formed on the front and rear cavity walls of the installation box. The guide groove is composed of a vertical section and an inclined section communicating with the lower end of the vertical section. A clamping plate is jointly slidably connected between the two guide grooves through a sliding column. A through groove is formed in the lower part of the side of the installation box close to the rectangular frame. A pressing and moving component for pushing the clamping plate to move is jointly arranged between the installation box and the rotating cylinders on the front and rear sections of the rectangular frame.

[0020] In a possible implementation, the pressing and shifting component includes a sliding rod that is slidably connected through the mounting box. A return spring is fixedly connected between the sliding rod and the upper cavity wall of the mounting box. Arc-shaped gradual extrusion blocks that cooperate with the sliding rod are fixedly connected to the outside of the rotating cylinders on the front and rear sections of the rectangular frame. A U-shaped groove is formed on the clamping plate, and transverse grooves are formed on the front and rear groove walls of the U-shaped groove. Slide blocks that are symmetrically fixed to the outside of the sliding rod and slidably arranged in the transverse grooves are provided.

[0021] As can be seen from the above technical solutions, the present invention has the following advantages:

[0022] In the present invention, through the auxiliary clamping mechanism and the additional clamping mechanism, additional locking and support are provided after the initial clamping of the container, improving the connection firmness between the container and the spreader, reducing the risk of cargo dropping caused by unstable clamping. At the same time, the additional clamping mechanism clamps the container from the side, distributing the weight to more connection points, reducing the stress on a single connection point, effectively preventing excessive local stress, and reducing the risk of premature wear or failure of the existing tongue plate and buckle, further improving the stability of the connection to the container.

[0023] In the present invention, through the positioning and locking mechanism, multiple linked rotating mechanisms are linked together. When any one tongue fails to be successfully clamped with the container, the remaining tongues will be automatically locked, preventing potential safety hazards caused by incomplete connections, effectively avoiding the dropping of the container due to local clamping failure, ensuring that all tongues can correctly clamp the container, and avoiding loosening or instability of the connection caused by some tongues not being correctly clamped, thereby improving the accuracy of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0025] Figure 1 It is a diagram of the ship loader operation method provided by the present invention.

[0026] Figure 2 It is a schematic diagram of the overall structure provided by the present invention.

[0027] Figure 3 Provided by the present invention Figure 2 The enlarged schematic diagram of part A in

[0028] Figure 4 It is a schematic diagram of the installation structure of the linked rotating mechanism provided by the present invention.

[0029] Figure 5 Schematic diagram of the installation structure of the positioning and locking mechanism provided by the present invention.

[0030] Figure 6 Partial structure schematic diagram of the positioning and locking mechanism provided by the present invention.

[0031] Figure 7 Schematic diagram of the installation structure of the auxiliary card mechanism from a bottom view perspective provided by the present invention.

[0032] Figure 8 Schematic diagram of the sectional installation structure of the auxiliary card mechanism provided by the present invention.

[0033] Figure 9 Schematic diagram of the installation structure of the card adding mechanism provided by the present invention.

[0034] Figure 10 Provided by the present invention Figure 9 Enlarged schematic diagram of part B structure in

[0035] Figure 11 Schematic diagram of the sectional structure of the card adding mechanism from a side view perspective provided by the present invention.

[0036] Among them, the above-mentioned drawings include the following reference numerals:

[0037] 100, multi-stage clamping type sling; 10, rectangular frame; 101, fixing frame; 102, main cable; 20, pull block seat; 201, secondary cable; 30, alignment mechanism; 301, support plate; 302, rotating cylinder; 303, pull rope; 304, folded guiding plate; 305, inclined slot; 306, guide roller; 307, top spring; 40, rotating column; 50, tongue; 60, linkage mechanism; 601, inner gantry frame; 602, spiral groove; 603, lifting column; 604, pulling and moving assembly; 6041, sliding groove; 6042, sliding block; 6043, outer gantry frame; 6044, connecting rod; 6045, limiting spring; 70, positioning and locking mechanism; 701, limiting combination groove; 702, L-shaped limiting sliding plate; 703, linkage assembly; 7031, open ring sleeve; 7032, transmission belt; 80, auxiliary card mechanism; 801, installation groove; 802, V-shaped card frame; 803, compression spring; 804, top moving assembly; 8041, Z-shaped groove; 8042, Z-shaped ejector rod; 8043, arc convex block; 90, card adding mechanism; 901, installation box; 902, guiding groove; 903, sliding column; 904, card plate; 905, pressing and moving assembly; 9051, sliding rod; 9052, return spring; 9053, arc gradually squeezing block; 9054, transverse groove; 9055, sliding strip block. Detailed implementation manners

[0038] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0039] Please refer to Figure 1 、 Figure 2 and Figure 5 , the present invention provides a technical solution: a ship loader operation method. The specific steps of the ship loader operation method are as follows:

[0040] S1. Clamp the container: Control the multi-stage clamping spreader 100 by the ship loader to clamp the container.

[0041] S2. Move the container: The ship loader controls the multi-stage clamping spreader 100 to lift the container from the ground to an appropriate height and then smoothly move it towards the ship.

[0042] S3. Place the container: When the multi-stage clamping spreader 100 approaches the placement position of the ship, the ship loader controls the multi-stage clamping spreader 100 to slowly place the container at the required placement position, and the container spreader releases the container.

[0043] S4. Repeat loading and unloading: Complete the loading operation of all the required containers according to the above steps.

[0044] The steps of the ship loader operation method in the above S1 - S4 need to be completed in cooperation with the multi-stage clamping spreader 100, rectangular frame 10, pull block seat 20, alignment mechanism 30, rotating column 40, tongue 50, combined rotation mechanism 60, positioning and locking mechanism 70, auxiliary clamping mechanism 80, and additional clamping mechanism 90.

[0045] The multi-stage clamping type sling 100 includes a rectangular frame 10 with a cavity inside, a fixing frame 101 fixedly connected to the rectangular frame 10, a pull block seat 20 arranged directly above the fixing frame 101, a main cable 102 fixedly connected to the upper end face of the fixing frame 101 and passing through and slidably connecting the pull block seat 20, and a secondary cable 201 fixedly connected to the upper end face of the pull block seat 20. At the middle of the upper end faces of the front and rear ends and the upper end faces of the left and right sections of the rectangular frame 10, there are alignment mechanisms 30 for positioning itself to ensure that the rectangular frame 10 can be accurately connected to the container. There are two alignment mechanisms 30 symmetrically arranged on the left and right of the rectangular frame 10. At the four corners of the rectangular frame 10, there are rotation columns 40 passing through and rotatably connected. The lower ends of the rotation columns 40 are fixedly connected with locking tongues 50. On the locking tongues 50, there are bayonets symmetrically arranged on the left and right. Between the rotation columns 40 and the alignment mechanisms 30, there is a joint rotation mechanism 60 for driving the locking tongues 50 to rotate so as to facilitate the clamping of the containers together. Outside the rotation columns 40, there is a positioning and locking mechanism 70 for limiting the locking tongues 50 so that they can rotate normally only when they are completely clamped with the container. Between each locking tongue 50 and the rectangular frame 10, there is an auxiliary clamping mechanism 80 for further enhancing the clamping stability between the locking tongue 50 and the container. On the opposite sides of the left and right of the rectangular frame 10, there are additional clamping mechanisms 90 for clamping and tightening the left and right sides of the container to further enhance the stability during the clamping of the container.

[0046] Please refer to Figure 2 and Figure 3 In this embodiment, the alignment mechanism 30 includes a support plate 301 fixedly connected to the upper end face of the rectangular frame 10 and a rotating cylinder 302 hinged to the support plate 301 through a rotating shaft and a torsion spring. A pull rope 303 is wound and fixedly connected to the outside of the rotating cylinder 302. One end of the pull rope 303 away from the rotating cylinder 302 is fixedly connected to the outside of the pull block seat 20. A folded guide plate 304 is fixedly connected to the outside of the rotating cylinder 302. The lower part of the folded guide plate 304 is symmetrically provided with inclined slots 305. Between the two inclined slots 305, a guide roller 306 is slidably connected through a sliding column. The upper part of the inclined slot 305 is fixedly connected with a top spring 307.

[0047] The initial state of the folded guide plate 304 is vertically downward. When hoisting a container, first move the rectangular frame 10 to directly above the container, and then synchronously lower the main cable 102 and the secondary cable 201 through an external winding device. The downward movement of the rectangular frame 10 drives the folded guide plate 304 to move downward synchronously. Then, the folded guide plates 304 located on the long side section and the short side section of the rectangular frame 10 drive the guide rollers 306 to move downward, and then touch the side end face of the container. When the guide roller 306 moves downward and touches the upper end face of the container, the guide roller 306 will be pushed to drive the sliding column to move in the inclined slot 305, so as to avoid the rigid collision between the guide roller 306 and the container. When the folded guide plate 304 completely moves downward and the lower part of the rectangular frame 10 touches the container, the alignment and correction of the rectangular frame 10 and the container can be completed. Then, wind up the secondary cable 201 through an external winding device. The secondary cable 201 then drives the rotating cylinder 302 to rotate, and then drives the folded guide plate 304 to rotate. The folded guide plate 304 then turns upward. During the rotation of the rotating cylinder 302, the linkage mechanism 60, the auxiliary clamping mechanism 80 and the additional clamping mechanism 90 are respectively triggered to operate to perform multi-level connection of the container.

[0048] Please refer to Figure 5 and Figure 6 In this embodiment, the positioning and locking mechanism 70 includes a limit combination groove 701 formed on the outside of the rotating column 40 and an L-shaped limit sliding plate 702 that penetrates and is slidably connected to the lower bottom plate of the rectangular frame 10 and is slidably disposed in the limit combination groove 701. The limit combination groove 701 is composed of a vertical groove opened along the axis of the rotating column 40 and an annular groove opened on the outside of the rotating column 40 and communicated with the vertical groove. The horizontal section of the L-shaped limit sliding plate 702 is slidably connected in the limit combination groove 701. A linkage assembly 703 is jointly provided on the outside of the rotating column 40. The linkage assembly 703 includes an open ring sleeve 7031 fixedly connected to the outside of the rotating column 40, and a transmission belt 7032 is jointly rotatably connected to the outside of the open ring sleeve 7031.

[0049] The initial state of the L-shaped limiting slide plate 702 is a natural sagging state. The horizontal section of the L-shaped limiting slide plate 702 is located in the vertical groove of the limiting combination groove 701, and the rotating column 40 is in a locked state. When the rectangular frame 10 moves downward until its lower part touches the container, the vertical section of the L-shaped limiting slide plate 702 also touches the container and is pushed upward until the horizontal section of the L-shaped limiting slide plate 702 completely moves upward into the annular groove of the limiting combination groove 701. At this time, the rotating column 40 can rotate normally. When the rectangular frame 10 is not completely aligned with the container, the horizontal section of the L-shaped limiting slide plate 702 is not pushed upward into the annular groove of the limiting combination groove 701, so the rotating column 40 is in a stuck state. Through the transmission belt 7032 and the split ring sleeve 7031, the remaining rotating columns 40 cannot rotate normally either. Furthermore, the combined rotation mechanism 60 cannot be triggered to operate, and then the rotating cylinder 302 cannot be rotated normally by the secondary cable 201. As a result, when the rectangular frame 10 is not completely aligned with the container, the subsequent tongue 50, auxiliary clamping mechanism 80, and additional clamping mechanism 90 cannot be normally clamped with the container, avoiding the situation where the container drops during lifting due to the clamping point not being in place when the rectangular frame 10 is connected without being completely aligned with the container.

[0050] Please refer to Figure 4 and Figure 6 In this embodiment, the combined rotation mechanism 60 includes a gantry inner frame 601 slidably connected to the upper end surface of the rectangular frame 10 through a connecting telescopic column. Helical grooves 602 are symmetrically formed on the outer part of the rotating column 40 in a rotational manner. Lifting columns 603 slidably arranged in the helical grooves 602 are fixedly connected to the opposite sides of the vertical sections of the gantry inner frame 601. A pulling and moving assembly 604 is jointly arranged between the gantry inner frame 601 and the rotating cylinder 302. The pulling and moving assembly 604 includes a chute 6041 formed on the opposite sides of the vertical sections of the gantry inner frame 601, a slider 6042 slidably connected in the chute 6041, and a gantry outer frame 6043 fixedly connected to the upper end surfaces of the two sliders 6042 and slidably sleeved outside the gantry inner frame 601. A connecting rod 6044 is hinged to the upper end surface of the gantry outer frame 6043 through a lug. The end of the connecting rod 6044 far from the lug is hinged to the rotating cylinder 302 through a connecting column. A limiting spring 6045 is fixedly connected to the upper groove wall of the chute 6041.

[0051] When the rotary drum 302 is pulled to rotate, it pulls the gantry outer frame 6043 to move upward through the connecting rod 6044. The gantry outer frame 6043 then drives the slider 6042 to move upward. The slider 6042 then contacts the limit spring 6045 and further pushes the gantry inner frame 601 to move upward. The gantry inner frame 601 then drives the lifting column 603 to move upward and extrude the spiral groove 602, causing the rotating column 40 to rotate. The rotating column 40 then drives the tongue 50 to rotate. After the tongue 50 rotates, the bayonet outside it is engaged with the buckle on the container, thereby completing the first-step clamping connection of the container. Then the rotating column 40 stops rotating, and the gantry outer frame 6043 continues to move upward under the pull of the connecting rod 6044, and further drives the slider 6042 to move upward to push the limit spring 6045 to be compressed.

[0052] Please refer to Figure 7 and Figure 8 In this embodiment, the auxiliary clamping mechanism 80 includes two mounting grooves 801 symmetrically opened on the left and right in the tongue 50 and communicating with the bayonet. A V-shaped clamping frame 802 is slidably connected in the mounting groove 801. A compression spring 803 is fixedly connected between the V-shaped clamping frame 802 and the mounting groove 801. A top-moving assembly 804 for driving the V-shaped clamping frame 802 to move is provided between the tongue 50 and the rectangular frame 10. The top-moving assembly 804 includes two Z-shaped grooves 8041 symmetrically opened on the tongue 50 corresponding to and communicating with the mounting groove 801. A Z-shaped top rod 8042 is slidably connected in the Z-shaped groove 8041. Arc-shaped protrusions 8043 cooperating with the Z-shaped top rod 8042 are symmetrically fixedly connected to the lower end face of the rectangular frame 10.

[0053] When the tongue 50 rotates, it will also drive the Z-shaped top rod 8042 to rotate synchronously. When the Z-shaped top rod 8042 rotates and contacts the arc-shaped protrusion and is pushed by the arc-shaped protrusion to move downward, the Z-shaped top rod 8042 moves downward and touches the upper inclined surface of the V-shaped clamping frame 802. The V-shaped frame is then pushed to move away from the axis direction of the rotating column 40. After moving, the V-shaped clamping frame 802 tightly contacts the buckle on the container, thereby further enhancing the connection stability between the tongue 50 and the container and completing the second-step clamping connection of the container.

[0054] Please refer to Figure 9 、 Figure 10 and Figure 11, in this embodiment, the card adding mechanism 90 includes an installation box 901 fixedly connected to the side end face of the rectangular frame 10. Guide grooves 902 are provided on the front and rear cavity walls of the installation box 901. Each guide groove 902 is composed of a vertical section and an inclined section communicating with the lower end of the vertical section. A clamping plate 904 is commonly slidably connected between the two guide grooves 902 through a sliding column 903. A through groove is provided at the lower part of the side of the installation box 901 close to the rectangular frame 10. A pressing and moving assembly 905 for pushing the clamping plate 904 to move is commonly provided between the installation box 901 and the rotating cylinders 302 on the front and rear sections of the rectangular frame 10. The pressing and moving assembly 905 includes a sliding rod 9051 slidably connected through the installation box 901. A return spring 9052 is fixedly connected between the sliding rod 9051 and the upper cavity wall of the installation box 901. An arc-shaped gradually squeezing block 9053 cooperating with the sliding rod 9051 is fixedly connected to the outside of the rotating cylinders 302 on the front and rear sections of the rectangular frame 10. A U-shaped groove is provided on the clamping plate 904. Horizontal grooves 9054 are provided on the front and rear groove walls of the U-shaped groove. Slide blocks 9055 slidably arranged in the horizontal grooves 9054 are symmetrically and fixedly connected to the outside of the sliding rod 9051 in the front and rear directions.

[0055] While the rotating cylinders 302 on the front and rear sections of the rectangular frame 10 are rotating, the position of the arc-shaped gradually squeezing block will also change continuously. Then, the arc surface of the arc-shaped gradually squeezing block touches the upper end of the sliding rod 9051 and pushes the sliding rod 9051 downward. The sliding rod 9051 then drives the clamping plate 904 to move downward through the slide blocks 9055. During the downward movement of the clamping plate 904, the sliding column 903 is driven to slide in the guide groove 902. When the sliding column 903 moves down to the inclined section of the guide groove 902, it will be squeezed and move towards the container. The sliding column 903 then drives the clamping plate 904 to move until the clamping plate 904 touches the container. At this time, the clamping plate 904 touches the rib at the side of the container, so that the container can be clamped and limited from the side, and the third clamping connection of the container can be completed. By clamping the container multiple times, the connection between the multi-stage clamping type spreader 100 and the container is greatly enhanced, ensuring the stability of container hoisting.

[0056] Finally, when the container is moved to the designated position, the secondary cable 201 is released. The folded guide plate 304 after being erected droops to drive the rotating cylinder 302 to reverse. The rotating cylinder 302 then respectively touches the linked rotation mechanism 60, the auxiliary clamping mechanism 80 and the card adding mechanism 90 to run in the reverse direction, successively separating the tongue 50 from the buckle, separating the V-shaped clamping frame 802 from the buckle, and moving the clamping plate 904 away from the container, which is convenient for quickly separating the rectangular frame 10 from the container.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation to the present invention.

[0058] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0059] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; 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 internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A ship loader operation method, characterized in that: The specific steps of ship loader operation are as follows: S1. Clamping the container: The multi-stage clamping spreader is controlled by the ship loader to clamp the container; S2. Moving containers: The loader controls the multi-stage clamping sling to lift the container from the ground to an appropriate height, and then moves it smoothly toward the ship; S3. Placing the container: When the multi-stage clamping spreader approaches the placement position of the ship, the loader controls the multi-stage clamping spreader to slowly place the container to the required placement position, and the multi-stage clamping spreader releases the container; S4, repeat loading and unloading: complete the loading operation of all required containers according to the above steps; The ship loader operation method steps in the above steps S1-S4 need to be completed by the cooperation of a multi-stage clamping spreader, a rectangular frame, a pull block seat, a positioning mechanism, a rotating column, a latch, a linkage mechanism, a positioning locking mechanism, an auxiliary card mechanism and an additional card mechanism; wherein: The multi-stage clamping type sling comprises a rectangular frame with a hollow inner cavity, a fixing frame fixedly connected to the rectangular frame, a block seat arranged directly above the fixing frame, a main cable fixedly connected to the upper end surface of the fixing frame and penetrating the sliding connection block seat, and a secondary cable fixedly connected to the upper end surface of the block seat. The middle of the upper end surfaces of the front and rear ends of the rectangular frame and the upper end surfaces of the left and right sections are both provided with a positioning mechanism for positioning the rectangular frame to ensure that the rectangular frame can be accurately connected to the container. Two positioning mechanisms are symmetrically arranged on the left and right sections of the rectangular frame. The rectangular frame is provided with rotating columns at the four corners, the lower end of the rotating column is fixedly connected with a latch tongue, and the latch tongue is provided with latch holes symmetrically on the left and right. A rotating linkage mechanism is provided between the rotating column and the alignment mechanism for driving the latch tongue to rotate so as to facilitate the container to be locked together. A positioning locking mechanism is provided outside the rotating column for limiting the latch tongue so that it can be fully locked together with the container before it can rotate normally. An auxiliary card mechanism is commonly provided between each of the latch tongues and the rectangular frame for further enhancing the stability of the latch connection between the latch tongue and the container. The left and right opposite sides of the rectangular frame are provided with card-increasing mechanisms for clamping the left and right sides of the container to further enhance the stability of the container when being latched.

2. A ship loader operation method according to claim 1, characterized in that: The alignment mechanism includes a support plate fixedly connected to the upper end surface of the rectangular frame and a rotating drum hinged on the support plate through a rotating shaft and a torsion spring, a pull rope is fixedly connected to the outside of the rotating drum, and the end of the pull rope away from the rotating drum is fixedly connected to the outside of the pull block seat, and a folding guide plate is fixedly connected to the outside of the rotating drum, and the lower part of the folding guide plate is symmetrically provided with inclined grooves, and a guide roller is slidably connected between the two inclined grooves through a sliding column, and a top spring is fixedly connected to the upper part of the inclined groove.

3. A ship loader operation method according to claim 2, characterized in that: The linkage mechanism includes a door-shaped inner frame slidably connected to the upper end surface of the rectangular frame by connecting telescopic columns, a spiral groove is rotationally symmetrically provided on the outside of the rotating column, and lifting columns slidably arranged in the spiral groove are fixedly connected to the opposite sides of the vertical section of the door-shaped inner frame, and a pulling assembly is commonly arranged between the door-shaped inner frame and the rotating drum.

4. A ship loader operation method according to claim 3, characterized in that: The pulling assembly includes a sliding groove opened on the opposite sides of the vertical sections of the door-type inner frame, a slider slidably connected to the sliding groove, and a door-type outer frame fixedly connected to the upper end surfaces of the two sliders and slidably sleeved on the outside of the door-type inner frame. The upper end surface of the door-type outer frame is hinged with a connecting rod through a lug, and the end of the connecting rod away from the lug is hinged to the rotating drum through a connecting column, and a limit spring is fixedly connected to the upper groove wall of the sliding groove.

5. A ship loader operation method according to claim 1, characterized in that: The auxiliary card mechanism includes two installation grooves which are symmetrically opened in the card tongue and connected to the card port, a V-shaped card frame is slidably connected in the installation groove, a compression spring is fixedly connected between the V-shaped card frame and the installation groove, and a top moving component for driving the V-shaped card frame to move is arranged between the card tongue and the rectangular frame.

6. A ship loader operation method according to claim 5, characterized in that: The lifting assembly includes two Z-shaped grooves symmetrically opened on the latch and corresponding to and connected to the mounting grooves, a Z-shaped push rod is slidably connected in the Z-shaped groove, and an arc-shaped protrusion cooperating with the Z-shaped push rod is symmetrically fixedly connected to the lower end surface of the rectangular frame.

7. A ship loader operation method according to claim 1, characterized in that: The positioning and locking mechanism includes a limiting combination groove opened on the outside of the rotating column and an L-shaped limiting slide plate that penetrates and slides on the lower bottom plate of the rectangular frame and is slidably set in the limiting combination groove. The limiting combination groove consists of a vertical groove opened along the axis of the rotating column and an annular groove opened on the outside of the rotating column and connected to the vertical groove. The transverse section of the L-shaped limiting slide plate is slidably connected in the limiting combination groove, and a linkage component is commonly set on the outside of the rotating column.

8. A ship loader operation method according to claim 7, characterized in that: The linkage assembly comprises an open ring sleeve fixedly connected to the outside of the rotating column, and the outside of the open ring sleeve is connected with a transmission belt for common rotation.

9. A ship loader operation method according to claim 1, characterized in that: The card adding mechanism includes an installation box fixedly connected to the side end face of the rectangular frame, and the front and rear cavity walls of the installation box are provided with guide grooves, and the guide grooves are composed of a vertical section and an inclined section connected to the lower end of the vertical section. A card plate is slidably connected between the two guide grooves through a sliding column, and a through groove is provided at the lower part of one side of the installation box close to the rectangular frame. A pressure-shifting component for pushing the card plate to move is jointly arranged between the installation box and the rotating cylinders located on the front and rear sections of the rectangular frame.

10. A ship loader operation method according to claim 9, characterized in that: The pressure-shifting assembly includes a sliding rod that is slidably connected to the installation box, a return spring is fixedly connected between the sliding rod and the upper cavity wall of the installation box, an arc-shaped gradual squeezing block that cooperates with the sliding rod is fixedly connected to the outside of the rotating cylinder located on the front and rear sections of the rectangular frame, a U-shaped groove is provided on the card plate, and transverse grooves are provided on the front and rear groove walls of the U-shaped groove, and a sliding bar block that is slidably arranged in the transverse groove is fixedly connected to the outside of the sliding rod symmetrically front and back.

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