A general-purpose spreader for containers

Abstract

The utility model discloses a general hoist for container, include: central seat subassembly, with central seat subassembly, the circumferential of being located in central seat subassembly is equipped with a plurality of sling legs, and the connecting rod assembly is connected between part adjacent sling legs in a plurality of sling legs, and a plurality of sling legs are rotatablely connected with central seat subassembly respectively, and the connecting rod assembly is telescopic, is used for adjusting the included angle between adjacent sling legs. In the present application, the sling leg is rotatablely connected to the central seat subassembly, and the included angle between the adjacent sling legs is controlled through the telescopic connecting rod assembly, and then the distance between the sling positions of the two sling leg upper sling position reinforcing plates is changed, thereby adapting to the lifting of the container of different shape and size. The connecting rod assembly and the sling leg assembly are rotatably connected, the third channel steel and the fourth channel steel in the connecting rod assembly can be folded when only one bolt is inserted, and then the adjacent sling legs are folded, and then the space occupied by the hoist storage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and in particular to a universal lifting device for containers. Background Technology

[0002] Containers are typically welded from steel and generally weigh over 2 tons, requiring lifting machinery for handling. Therefore, overhead cranes or gantry cranes are used for handling or transferring containers. To avoid direct damage to the container's exterior from the lifting ropes and to improve safety during lifting, specialized lifting equipment must be used to prevent the slings from directly crushing the container and to enhance operational safety. Traditional lifting equipment is mostly a fixed frame formed by welding together structural steel sections, with non-adjustable geometric dimensions.

[0003] In the process of developing the existing technology, the inventors discovered that: There are many types of containers, and different types of containers have different shapes and sizes. Therefore, different types of containers require different sizes of spreaders, which results in a wide variety of spreaders, high procurement costs, and a large amount of yard space occupied.

[0004] Therefore, this application proposes a universal container spreader with adjustable geometry, which aims to be compatible with multiple container types with a single spreader, thereby reducing equipment investment and storage space. Utility Model Content

[0005] This utility model provides a technical solution for a universal spreader that can adapt to containers of different shapes and sizes, in order to solve the problems of increased costs and large space occupation caused by the need for spreaders of different sizes for containers of different shapes and sizes in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A general-purpose spreader for containers is provided, comprising: a center seat assembly, a plurality of legs circumferentially disposed on the center seat assembly and connected to the center seat assembly, wherein a connecting rod assembly is connected between some adjacent legs, wherein the plurality of legs are rotatably connected to the center seat assembly, and the connecting rod assembly is telescopic for adjusting the included angle between adjacent legs.

[0007] In a preferred embodiment of the present invention, the center seat assembly includes an upper center base plate and a lower center base plate that are positioned correspondingly, a central shaft connecting the center positions of the upper center base plate and the lower center base plate, and rotating shaft holes respectively provided at the positions of a plurality of lifting legs in the upper center base plate and the lower center base plate, wherein bearing units for inserting and rotating the lifting legs are provided in the rotating shaft holes.

[0008] In a preferred embodiment of the present invention, the lifting leg includes a first channel steel and a second channel steel connected to the first channel steel. The cross-sections of the first channel steel and the second channel steel are both U-shaped and connected back to back.

[0009] In a preferred embodiment of the present invention, a leg reinforcing plate is welded between the first channel steel and the second channel steel and is disposed at the same end of the first channel steel and the second channel steel; the upper end face and the lower end face of the leg reinforcing plate are respectively provided with a rotating shaft for inserting into the rotating shaft hole of the upper central base plate and the lower central base plate to realize the rotation of the leg relative to the central seat assembly.

[0010] In a preferred embodiment of this utility model, a plurality of lifting reinforcement plates are welded between the first channel steel and the second channel steel. The lifting reinforcement plates include an upper lifting reinforcement plate and a lower lifting reinforcement plate. The upper lifting reinforcement plate is provided with a lifting hole one above the upper end face of the first channel steel and the second channel steel. The lower lifting reinforcement plate is provided with a lifting hole two below the lower end face of the first channel steel and the second channel steel.

[0011] In a preferred embodiment of the present invention, the lower suspension reinforcing plate is disposed at the same end of the first channel steel and the second channel steel, and the upper suspension reinforcing plate is located between the suspension leg reinforcing plate and the lower suspension reinforcing plate.

[0012] In a preferred embodiment of the present invention, the connecting rod assembly includes a third channel steel and a fourth channel steel that is fastened to the third channel steel. Several connecting holes are respectively opened laterally on both sides of the third channel steel and the fourth channel steel. After determining the included angle between adjacent lifting legs, at least two pins are respectively inserted into the corresponding connecting holes of the third channel steel and the fourth channel steel to fix the included angle between adjacent lifting legs.

[0013] In a preferred embodiment of this utility model, the first or second channel steel of the connecting legs on both sides of the connecting rod assembly is provided with connecting rod rotation shaft holes on both sides. The third channel steel away from the fourth channel steel and the fourth channel steel away from the third channel steel are respectively provided with connecting rod shafts. The connecting rod shafts of the third channel steel and the fourth channel steel are respectively inserted into the connecting rod rotation shaft holes of the first or second channel steel of the two legs to realize the rotation of the third or fourth channel steel relative to the legs.

[0014] The universal spreader for containers provided in this application has the following advantages: In this application, the lifting legs are rotatably connected to the center seat assembly, and the included angle between adjacent lifting legs is controlled by a telescopic linkage assembly, thereby changing the distance between the lifting positions of the lifting position reinforcement plates on the two lifting legs, so as to adapt to the lifting of containers of different shapes and sizes.

[0015] Moreover, the linkage assembly and the leg assembly are rotatably connected. When the third and fourth channel steels in the linkage assembly are inserted by only one pin, the third and fourth channel steels can be folded, thereby allowing adjacent legs to be brought together, thus reducing the space occupied by the lifting equipment. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a general-purpose spreader for containers. Figure 2 This is a structural schematic diagram of the center seat assembly of this utility model; Figure 3 This is a structural diagram of this practical hanging leg; Figure 4 This is a schematic diagram of the structure of this practical connecting rod assembly; Figure 5 This is a schematic diagram of the semi-folded structure of this practical and universal lifting tool; Figure 6 This is a structural diagram of a practical and universal lifting tool for lifting containers; The components in the attached diagram are labeled as follows: General-purpose spreader for containers - 100; Center seat assembly-10; Upper center base plate-11; Lower center base plate-12; Center shaft-13; Rotating shaft hole-14; Bearing unit-15; Bearing-151; Bearing sleeve-152; Reinforcing plate-16; Lifting leg - 20; First channel steel - 21; Second channel steel - 22; Connecting rod rotating shaft hole - 211; Lifting leg reinforcing plate - 23; Rotating shaft - 231; Lifting position reinforcing plate - 24; Upper lifting position reinforcing plate - 241; Lifting position hole one - 2411; Lower lifting position reinforcing plate - 242; Lifting position hole two - 2421; Connecting rod assembly - 30; Third channel steel - 31; Fourth channel steel - 32; Connecting hole - 311; Connecting rod shaft - 33. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] Specifically, traditional spreaders are mostly fixed frames formed by welding steel sections, and their geometric dimensions are not adjustable. The lifting position reinforcement plate 24 on the lifting leg 20 is fixed to the lifting leg 20. This means that the spreader can only be used for containers of fixed shape and size, and cannot be used for containers of different shapes and sizes. Based on the above problems, this application provides a universal spreader that can be applied to containers of different shapes and sizes.

[0019] Please see Figure 1 The universal spreader 100 for containers provided in this application includes: a center seat assembly 10, a plurality of legs 20 connected to the center seat assembly 10 and circumferentially disposed on the center seat assembly 10, and a connecting rod assembly 30 connecting some adjacent legs 20. The plurality of legs 20 are rotatably connected to the center seat assembly 10, and the connecting rod assembly 30 is telescopic for adjusting the included angle between adjacent legs 20.

[0020] Specifically, this application configures the lifting leg 20 to be rotatably connected relative to the center seat assembly 10. It can be understood that the rotation of the lifting leg 20 allows the included angle between adjacent lifting legs 20 to be adjusted, thereby changing the distance between the lifting position reinforcement plate 24 on the lifting leg 20 and the lifting position reinforcement plate 24 on the lifting leg 20. Based on this, the connecting rod assembly 30 between adjacent lifting legs 20 is made telescopic, so that after the distance between adjacent lifting legs 20 is determined, the included angle between adjacent lifting legs 20 is fixed by the telescopic movement of the connecting rod assembly 30, thereby fixing the distance between the lifting position reinforcement plate 24 on the lifting leg 20 and the lifting position reinforcement plate 24 on the lifting leg 20.

[0021] Furthermore, such as Figure 2 As shown, the center seat assembly 10 includes an upper center base plate 11 and a lower center base plate 12 with corresponding positions, a central shaft 13 connecting the center positions of the upper center base plate 11 and the lower center base plate 12, and rotating shaft holes 14 are respectively opened in the upper center base plate 11 and the lower center base plate 12 at the positions of several hanging legs 20. The rotating shaft holes 14 are provided with bearing unit areas 15 for the hanging legs 20 to be inserted and rotated.

[0022] Specifically, the upper central base plate 11, lower central base plate 12, and central shaft 13 in the central base assembly 10 are connected by welding. In a preferred embodiment provided in this application, there are preferably four lifting legs 20, which are circumferentially mounted on the central base assembly 10. That is, the upper central base plate 11 and the lower central base plate 12 are respectively provided with pivot holes 14 at the positions of the four lifting legs 20, for the lifting legs 20 to connect to the pivot holes 14 of the upper central base plate 11 and the pivot holes 14 of the lower central base plate 12. The pivot holes 14 are provided with bearing unit areas 15 for the insertion and rotation of the lifting legs 20. The bearing unit area 15 includes a bearing 151 and a bearing sleeve 152 located between the bearing 151 and the pivot hole 14.

[0023] It should also be noted that a reinforcing plate 16 is welded between the upper central base plate 11 and the lower central base plate 12 of the central base assembly 10 and between adjacent hanging legs 20, in order to increase the robustness and strength of the central base assembly 10.

[0024] Furthermore, such as Figure 3As shown, the support leg 20 includes a first channel steel 21 and a second channel steel 22 connected to the first channel steel 21. The cross-sections of the first channel steel 21 and the second channel steel 22 are both U-shaped and connected back to back.

[0025] Specifically, channel steel is a long strip of steel with a U-shaped cross section. In a preferred embodiment provided in this application, the hanging leg 20 is composed of a first channel steel 21 and a second channel steel 22 back to back, that is, the U-shaped shape of the first channel steel 21 and the second channel steel 22 faces outward and their backs are connected.

[0026] Furthermore, a leg reinforcement plate 23 is welded between the first channel steel 21 and the second channel steel 22 and is located at the same end of the first channel steel 21 and the second channel steel 22; the upper end face and the lower end face of the leg reinforcement plate 23 are respectively provided with a rotating shaft 231 for inserting into the rotating shaft hole 14 of the upper center base plate and the lower center base plate to realize the rotation of the leg 20 relative to the center seat assembly 10.

[0027] Specifically, the reinforcement plate 23 of the suspension leg is mainly used to increase the stability of the suspension leg 20. The rotating shafts 231 provided on the upper and lower end faces of the suspension leg 20 are mainly used to insert into the rotating shaft hole 14 of the center seat assembly 10 to realize the rotation of the suspension leg 20 relative to the center seat assembly 10.

[0028] Furthermore, a plurality of lifting reinforcement plates 24 are welded between the first channel steel 21 and the second channel steel 22. The lifting reinforcement plates 24 include an upper lifting reinforcement plate 241 and a lower lifting reinforcement plate 242. The upper lifting reinforcement plate 241 is partially higher than the upper end face of the first channel steel 21 and the second channel steel 22 and has a lifting hole 2411. The lower lifting reinforcement plate 242 is partially lower than the lower end face of the first channel steel 21 and the second channel steel 22 and has a lifting hole 2421.

[0029] Specifically, the lifting hole 2411 of the upper lifting plate 24 is used for the lifting rope to pass through and connect with the hook of the crane or trolley, and the lifting hole 2421 of the lower lifting plate 24 is used for the lifting rope to pass through and connect with the container.

[0030] Furthermore, the lower suspension reinforcement plate 242 is located at the other end of the first channel steel 21 and the second channel steel 22, and the upper suspension reinforcement plate 241 is located between the suspension leg reinforcement plate 23 and the lower suspension reinforcement plate 242.

[0031] Specifically, the leg reinforcement plate 23 is located at the same end of the first channel steel 21 and the second channel steel 22, and is used to connect with the center seat assembly to achieve rotation. The lower lifting position reinforcement plate 24 is located at the other end of the first channel steel 21 and the second channel steel 22, and is used to maximize the distance between lifting positions, thereby increasing the types of containers that can be lifted. The upper lifting position reinforcement plate 24 is located between the leg reinforcement plate 23 and the lower lifting position reinforcement plate 24, and is used to cooperate with the lower lifting position reinforcement plate to lift the container.

[0032] It should also be noted that, in a preferred embodiment provided in this application, the leg reinforcement plate 23, the upper suspension reinforcement plate, and the lower suspension reinforcement plate 24 are welded between the first channel steel 21 and the second channel steel 22.

[0033] Furthermore, such as Figure 4 As shown, the connecting rod assembly 30 includes a third channel steel 31 and a fourth channel steel 32 that is fastened to the third channel steel 31. Several connecting holes 311 are laterally opened on both sides of the third channel steel 31 and the fourth channel steel 32. After determining the included angle between adjacent lifting legs 20, at least two pins are inserted into the corresponding connecting holes 311 of the third channel steel 31 and the fourth channel steel 32 to fix the included angle between adjacent lifting legs 20.

[0034] Specifically, under the premise that several hanging legs 20 can be rotatably adjusted with the center seat assembly 10 to adjust the included angle between adjacent hanging legs 20, thereby adjusting the distance between the hanging position reinforcement plate 24 on the hanging leg 20 and the hanging position reinforcement plate 24 on the hanging leg 20, a connecting rod assembly 30 is also provided between some adjacent hanging legs 20 to fix the included angle between adjacent hanging legs 20, thereby fixing the distance between the hanging position reinforcement plate 24 on the hanging leg 20 and the hanging position reinforcement plate 24 on the hanging leg 20.

[0035] Specifically, after the included angle between adjacent lifting legs 20 is determined, the engaged third channel steel 31 and fourth channel steel 32 move relatively parallel to each other. Then, two pins are inserted into the connecting holes 311 on both sides of the third channel steel 31 and the fourth channel steel 32 respectively to fix the distance between adjacent lifting legs 20. It should be noted that if only one pin is used for fixing, the third channel steel 31 and fourth channel steel 32 may rotate relative to each other. However, by using two pins for fixing, the third channel steel 31 and fourth channel steel 32 remain relatively parallel and are less prone to rotation.

[0036] Furthermore, the first channel steel 21 or the second channel steel 22 of the connecting legs 20 on both sides of the connecting rod assembly 30 are respectively provided with connecting rod rotation shaft holes 211. The third channel steel 31 and the fourth channel steel 32 in the connecting rod assembly 30 are respectively provided with connecting rod shafts 33. The connecting rod shafts 33 of the third channel steel 31 and the fourth channel steel 32 are respectively inserted into the connecting rod rotation shaft holes 211 of the first channel steel 21 or the second channel steel 22 of the two legs 20 to realize the rotation of the third channel steel 31 or the fourth channel steel 32 relative to the legs 20.

[0037] Specifically, the cross-section of the first channel steel 21 or the second channel steel 22 is concave, that is, connecting rod rotation shaft holes 211 are opened at the connection positions of the connecting rod assembly 30 on both sides of the first channel steel 21 or the second channel steel 22.

[0038] The connecting rod shafts 33 of the third channel steel 31 and the fourth channel steel 32 of the connecting rod assembly 30 are respectively inserted into the connecting rod rotation shaft hole 211 in the concave position of the first channel steel 21, so as to realize the rotation of the connecting rod shafts 33 of the third channel steel 31 and the fourth channel steel 32 relative to the first channel steel 21 or the second channel steel 22 connected on both sides.

[0039] Understandable, such as Figure 5 The diagram shows a semi-folded schematic of a general-purpose lifting device. The connecting rod assembly 30 and its adjacent legs 20 can rotate relative to each other. Furthermore, if only one pin is inserted between the third channel steel 31 and the fourth channel steel 32 in the connecting rod assembly 30, the third channel steel 31 and the fourth channel steel 32 can also rotate relative to each other. Therefore, it can be imagined that the point where the third channel steel 31 connects to the leg 20 rotates, the point where the third channel steel 31 connects to the fourth channel steel 32 rotates, and the point where the fourth channel steel 32 connects to the other leg 20 rotates. This allows the third channel steel 31 and the fourth channel steel 32 to fold, resulting in an angle of 0° between adjacent legs 20, meaning the legs 20 on both sides of the connecting rod assembly 30 can be brought together. It should be noted that in a preferred embodiment provided in this application, four lifting legs 20 are provided, which can be understood as lifting leg one, lifting leg two, lifting leg three and lifting leg four. A connecting rod assembly 30 is provided between lifting leg one and lifting leg two, and between lifting leg three and lifting leg four. Thus, lifting leg one and lifting leg two can be brought together, and lifting leg three and lifting leg four can be brought together, thereby reducing the space occupied by the lifting device.

[0040] like Figure 6The diagram shows a schematic of a general-purpose spreader for lifting containers. In one practical application scenario provided in this application, if the container is too large, the third channel steel 31 and the fourth channel steel 32 that are fastened to it are moved, increasing their final length and the angle between adjacent lifting legs 20. Then, two pins are inserted into the connecting holes 311 on both sides of the third channel steel 31 and the fourth channel steel 32 to fix the lifting legs 20 together. The lower lifting reinforcement plates 24 of the four lifting legs 20 are connected to the container, and the upper lifting reinforcement plates 24 are connected to the hook of the crane or overhead crane via lifting ropes to lift the container. If the container is too small, the third channel steel 31 and the fourth channel steel 32 that are fastened to it are moved, reducing their final length and the angle between adjacent lifting legs 20. Then, two pins are inserted into the connecting holes 311 on both sides of the third channel steel 31 and the fourth channel steel 32 to fix the lifting legs 20 together. The lower lifting position reinforcing plate 24 of the four lifting legs 20 is connected to the container, and the upper lifting position reinforcing plate 24 is connected to the hook of the crane or overhead crane through lifting ropes to realize the lifting of the container.

[0041] After the lifting operation is completed, one of the pins connecting the third channel steel 31 and the fourth channel steel 32 in the connecting rod assembly 30 is removed, so as to realize the relative rotation between the third channel steel 31 and the fourth channel steel 32. Since the third channel steel 31 and the fourth channel steel 32 between the connecting rods are relatively rotated and connected to the first channel steel 21 or the second channel steel 22 on both sides, the lifting legs 20 on both sides of the connecting rod assembly 30 are brought together.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A universal spreader for containers, characterized in that, include: A central seat assembly, a plurality of lifting legs circumferentially disposed on the central seat assembly and connected thereto, and a connecting rod assembly connecting some adjacent lifting legs. The lifting legs are rotatably connected to the central seat assembly, and the connecting rod assembly is telescopic to adjust the included angle between adjacent lifting legs.

2. The universal lifting tool as described in claim 1, characterized in that, The center base assembly includes an upper center base plate and a lower center base plate that are positioned correspondingly, a central shaft connecting the center positions of the upper center base plate and the lower center base plate, and a pivot hole corresponding to a number of leg positions in the upper center base plate and the lower center base plate, with a bearing unit for inserting and rotating the leg in the pivot hole.

3. The universal lifting tool as described in claim 2, characterized in that, The lifting leg includes a first channel steel and a second channel steel connected to the first channel steel. The cross-sections of the first channel steel and the second channel steel are both U-shaped and connected back to back.

4. The universal lifting tool as described in claim 3, characterized in that, A leg reinforcement plate is welded between the first channel steel and the second channel steel and is located at the same end of the first channel steel and the second channel steel; The upper and lower ends of the leg reinforcement plate are respectively provided with rotating shafts for inserting into the rotating shaft holes of the upper central base plate and the lower central base plate, so as to realize the rotation of the leg relative to the central base assembly.

5. The universal lifting tool as described in claim 4, characterized in that, Several lifting position reinforcing plates are also welded between the first channel steel and the second channel steel. The lifting position reinforcing plates include an upper lifting position reinforcing plate and a lower lifting position reinforcing plate. The upper lifting position reinforcing plate is higher than the upper end face of the first channel steel and the second channel steel and has a lifting position hole. The lower suspension reinforcing plate is provided with a second suspension hole at a position that is lower than the lower end face of the first channel steel and the second channel steel.

6. The universal lifting tool as described in claim 5, characterized in that, The lower suspension reinforcement plate is located at the same end of the first channel steel and the second channel steel, and the upper suspension reinforcement plate is located between the suspension leg reinforcement plate and the lower suspension reinforcement plate.

7. The universal lifting tool as described in claim 1, characterized in that, The connecting rod assembly includes a third channel steel and a fourth channel steel that is fastened to the third channel steel. Several connecting holes are opened laterally on both sides of the third channel steel and the fourth channel steel. After determining the included angle between adjacent legs, at least two pins are inserted into the corresponding connecting holes of the third channel steel and the fourth channel steel to fix the included angle between adjacent legs.

8. The universal lifting tool as described in claim 7, characterized in that, The first or second channel steel of the connecting legs on both sides of the connecting rod assembly is provided with connecting rod rotation shaft holes on both sides. The third channel steel away from the fourth channel steel and the fourth channel steel away from the third channel steel are respectively provided with connecting rod shafts. The connecting rod shafts of the third channel steel and the fourth channel steel are respectively inserted into the connecting rod rotation shaft holes of the first or second channel steel of the two legs to realize the rotation of the third or fourth channel steel relative to the legs.

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