Hoisting device for steel pipes
By designing a lifting device with adjustable hook spacing, the problem of fixed hook position was solved, steel pipe deformation was avoided, lifting stability and lifting ring replacement efficiency were improved, and the labor intensity of operators was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI PINHUA MANAGEMENT CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-10
AI Technical Summary
The existing hoisting equipment has a fixed hook position, which causes stress concentration in the middle of the steel pipe when hoisting long steel pipes, making them prone to deformation and increasing the risk of steel cable breakage.
A hoisting device was designed, comprising a drive motor, a rotating shaft, a rotating rod, a diagonal rod, a telescopic plate, and a rectangular block. The drive motor drives the rotating rod and the diagonal rod to move, and the hook spacing can be adjusted to accommodate the hoisting of steel pipes of different lengths. The hoisting rings can be easily replaced through the cooperation of the drive motor and the rotating rod.
This design allows for adjustable hook spacing, preventing steel pipe deformation, improving lifting stability and efficiency in changing lifting rings, and reducing the labor intensity of operators.
Smart Images
Figure CN224105378U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Embodiments of the present disclosure relate to the technical field of steel pipe transportation, in particular to a lifting device for steel pipes. BACKGROUND
[0002] Steel pipes are hollow long steel materials widely used in fields such as fluid transportation, mechanical structure manufacturing, and building support, and can be divided into seamless steel pipes and welded steel pipes according to production processes. The seamless steel pipes are made by hot rolling or cold drawing and have higher strength and pressure-bearing capacity, and are often used in high-pressure equipment. The welded steel pipes are made by rolling and welding steel plates, have lower cost and flexible specifications, and are often used in low-pressure pipelines and structural members. Steel pipes have the characteristics of light weight, high bending strength, and easy processing and installation, and play an important role in the petroleum, chemical, construction, and bridge industries. The surface can be coated with zinc or sprayed with plastic to enhance corrosion resistance to meet different environmental requirements.
[0003] During the use of steel pipes, operators often use corresponding lifting devices to lift the bundled steel pipes. Although the existing lifting devices have basic lifting functions, the position of the lifting hook of a general lifting device is fixed. When transporting a steel pipe with a long length, the position of the lifting hook is relatively close, which causes stress concentration at the middle position of the steel pipe and leads to deformation of the steel pipe. This not only damages the quality of the steel pipe but also increases the risk of steel cable breakage, and therefore needs to be improved. CONTENT OF THE UTILITY MODEL
[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide a lifting device for steel pipes, which solves the technical problem of fixed distance between lifting hooks in the prior art.
[0005] According to one aspect, at least one embodiment of the present disclosure provides a lifting device for steel pipes, which comprises an outer shell, a driving motor fixedly connected to the top of the inner cavity of the outer shell, a rotating shaft fixedly sleeved at the other end of the output shaft of the driving motor, a rotating rod fixedly sleeved at the other end of the rotating shaft, an inclined rod hingedly connected to the left and right sides of the rotating rod, an extension plate hingedly connected to the other end of the inclined rod, the outer surface of the extension plate movably connected to the inner surface of the outer shell, a rectangular block fixedly connected to the front and back of the extension plate, and the outer surface of the rectangular block movably connected to the inside of the outer shell.
[0006] As a preferred technical solution of the present utility model, steel cables are fixedly connected to the front and back of the left side of the bottom of the extension plate, a connecting block is fixedly connected to the bottom end of the steel cable, and a lifting hook is hingedly connected to the bottom of the connecting block.
[0007] As a preferred technical scheme of the utility model, the top of the telescopic plate is hingedly connected with a connecting rod, and the other end of the connecting rod is hingedly connected with a fixed plate.
[0008] As a preferred technical scheme of the utility model, the bottom of the fixed plate is fixedly connected with a mounting plate, the left and right sides of the bottom of the mounting plate are fixedly connected with vertical rods, the outer surface of the vertical rod is movably sleeved with a hollow rod, and the hollow rod is fixedly installed at the top of the shell.
[0009] As a preferred technical scheme of the utility model, the bottom of the fixed plate is fixedly connected with a connecting frame, the bottom of the connecting frame is fixedly connected with a power motor, and the other end of the output shaft of the power motor is fixedly sleeved with a rotating rod.
[0010] As a preferred technical scheme of the utility model, the other end of the rotating rod penetrates through the connecting frame and extends into the inside of the connecting frame and is fixedly sleeved with a rotating rod, and the left and right sides of the outer surface of the rotating rod are movably connected with sleeve rods.
[0011] As a preferred technical scheme of the utility model, the outer side of the sleeve rod is fixedly connected with a moving plate, the inner side of the moving plate is fixedly installed with a plug, the other end of the plug penetrates through the fixed plate and extends into the inside of the fixed plate and is movably connected with a connecting seat.
[0012] As a preferred technical scheme of the utility model, the front and back of the fixed plate are fixedly connected with limit rods, and the outer surface of the limit rod is movably sleeved with the inside of the moving plate.
[0013] As a preferred technical scheme of the utility model, the outer surface of the power motor is fixedly connected with a protective shell, and the protective shell is fixedly installed at the bottom of the connecting frame.
[0014] As a preferred technical scheme of the utility model, the outer surface of the connecting seat is movably connected with the inside of the top of the fixed plate, and the top of the connecting seat is fixedly connected with a lifting ring.
[0015] The embodiment of the present disclosure has the following beneficial effects:
[0016] 1、in the present disclosure, by setting the rotating shaft, the rotating rod, the inclined rod, the telescopic plate and the rectangular block, when the driving motor starts to run, the rotating shaft drives the rotating rod to start rotating, and the two inclined rods move, at this time, under the limiting action of the shell, the telescopic plate drives the rectangular block to move away from the driving motor, so that the two telescopic plates are extended from the inside of the shell, and the steel cable and the lifting hook at the bottom of the telescopic plate are moved, the purpose of adjusting the distance between the lifting hooks is achieved, the device can adapt to the hoisting operation of steel pipes with various lengths and sizes, and the local stress concentration of the steel pipe is avoided, so that the deformation of the steel pipe is avoided.
[0017] 2、The disclosure is by setting the rotating rod, sleeve rod, movement plate, plug and limit rod, when the motor starts to run, will make the rotating rod rotating, so that the rotating rod extrusion push two sleeve rod, let two sleeve rod drive two movement plate and two plug under the limiting effect of limit rod, horizontal opposite movement, eventually make the plug off the inside of the connecting seat, achieve the purpose of convenient replacement of connecting seat and lifting ring, improve the efficiency of the operator to replace the lifting ring, reduce the labor intensity of the operator. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the disclosure, the drawings needed to be used in the description of the embodiments of the disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the disclosure. For those skilled in the art, other drawings can be obtained according to the content of the example embodiments of the disclosure and these drawings without creating labor.
[0019] Figure 1 The overall structure schematic diagram of an embodiment of the disclosure;
[0020] Figure 2 The cross-sectional structure schematic diagram of the driving motor in the embodiment of the disclosure; Figure 1
[0021] The cross-sectional structure schematic diagram of the driving motor in the embodiment of the disclosure; Figure 3 Figure 1 The cross-sectional structure schematic diagram of the driving motor in the embodiment of the disclosure;
[0022] Figure 4 Figure 1 The cross-sectional structure schematic diagram of the telescopic plate in the embodiment of the disclosure;
[0023] Figure 5 The cross-sectional structure schematic diagram of the connecting rod in the embodiment of the disclosure; Figure 1
[0024] Figure 6 The local enlarged structure schematic diagram of A in the embodiment of the disclosure. Figure 3 In the figure: 1, the shell; 2, the driving motor; 3, the rotating shaft; 4, the rotating rod; 5, the inclined rod; 6, the telescopic plate; 7, the rectangular block; 8, the steel cable; 9, the connecting block; 10, the lifting hook; 11, the connecting rod; 12, the fixed plate; 13, the mounting plate; 14, the vertical rod; 15, the hollow rod; 16, the connecting frame; 17, the power motor; 18, the rotating rod; 19, the rotating rod; 20, the sleeve rod; 21, the movement plate; 22, the plug; 23, the limit rod; 24, the protection shell; 25, the connecting seat; 26, the lifting ring.
[0025] DETAILED DESCRIPTION
[0026] The present disclosure will be further described in details with reference to the drawings and examples. It can be understood that the specific examples described herein are merely used to explain the present disclosure, but not to limit the present disclosure.
[0027] For the simplicity of the drawings, only the parts related to the disclosure are shown in each drawing, and they do not represent the actual structure of the product. In addition, for the simplicity of the drawings and easy understanding, in some drawings, only one of the parts with the same structure or function is shown schematically, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0028] In this document, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.
[0029] In the present disclosure, unless otherwise specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.
[0030] In the description of the present embodiment, the orientation or position relationship of the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.
[0031] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] As Figures 1-6As shown in the figure, it shows a lifting device for steel pipe in an embodiment of the present disclosure, which comprises a shell 1, the top of the inner cavity of the shell 1 is fixedly connected with a driving motor 2, the other end of the output shaft of the driving motor 2 is fixedly sleeved with a rotating shaft 3, the other end of the rotating shaft 3 is fixedly sleeved with a rotating rod 4, the left and right sides of the rotating rod 4 are both hingedly connected with an inclined rod 5, the other end of the inclined rod 5 is hingedly connected with an expansion plate 6, the outer surface of the expansion plate 6 is movably connected with the inner surface of the shell 1, the front and back of the expansion plate 6 are both fixedly connected with a rectangular block 7, and the outer surface of the rectangular block 7 is movably connected with the inside of the shell 1.
[0033] When the driving motor 2 starts to work, the rotating shaft 3 will drive the rotating rod 4 to start rotating, and the two inclined rods 5 will move, at this time, under the limiting action of the shell 1, the expansion plate 6 will drive the rectangular block 7 to move away from the driving motor 2, and finally the two expansion plates 6 will extend out of the inside of the shell 1.
[0034] In some examples, the front and back of the bottom left side of the expansion plate 6 are both fixedly connected with a steel cable 8, the bottom end of the steel cable 8 is fixedly connected with a connecting block 9, and the bottom of the connecting block 9 is hingedly connected with a lifting hook 10.
[0035] The operator hangs the bundled steel pipe through the four lifting hooks 10, and the design of the four lifting hooks 10 also improves the stability during transportation.
[0036] In some examples, the top of the expansion plate 6 is hingedly connected with a connecting rod 11, and the other end of the connecting rod 11 is hingedly connected with a fixed plate 12.
[0037] When the expansion plate 6 extends outward, the connecting rod 11 will move, and the fixed plate 12 will move downward.
[0038] In some examples, the bottom of the fixed plate 12 is fixedly connected with a mounting plate 13, the left and right sides of the bottom of the mounting plate 13 are both fixedly connected with a vertical rod 14, the outer surface of the vertical rod 14 movably sleeved with a hollow rod 15, and the hollow rod 15 is fixedly installed at the top of the shell 1.
[0039] Due to the limiting action of the hollow rod 15, the fixed plate 12 will drive the mounting plate 13 and the vertical rod 14 to move vertically up and down.
[0040] In some examples, the bottom of the fixed plate 12 is fixedly connected with a connecting frame 16, the bottom of the connecting frame 16 is fixedly connected with a power motor 17, and the other end of the output shaft of the power motor 17 is fixedly sleeved with a rotating rod 18.
[0041] When the power motor 17 starts to work, the rotating rod 18 will rotate.
[0042] In some examples, the other end of the rotating rod 18 penetrates through the connecting frame 16 and extends to the inside of the connecting frame 16 and is fixedly sleeved with a rotating rod 19, and the left and right sides of the outer surface of the rotating rod 19 are movably connected with sleeve rods 20.
[0043] When the rotating rod 18 rotates, the rotating rod 19 will start to rotate, and the rotating rod 19 will push the two sleeve rods 20 to move.
[0044] In some examples, the outer side of the sleeve rod 20 is fixedly connected with a moving plate 21, the inner side of the moving plate 21 is fixedly installed with an insertion block 22, and the other end of the insertion block 22 penetrates through the fixed plate 12 and extends to the inside of the fixed plate 12 and is movably connected with a connecting seat 25.
[0045] When the sleeve rod 20 moves, the moving plate 21 and the insertion block 22 will be separated from the inside of the connecting seat 25, so that the fixing effect on the connecting seat 25 is eliminated.
[0046] In some examples, the front and back surfaces of the fixed plate 12 are fixedly connected with limiting rods 23, and the outer surface of the limiting rod 23 is movably sleeved with the inside of the moving plate 21.
[0047] Due to the limiting effect of the limiting rod 23, the moving plate 21 drives the insertion block 22 to move horizontally left and right.
[0048] In some examples, the outer surface of the power motor 17 is fixedly connected with a protective shell 24, and the protective shell 24 is fixedly installed at the bottom of the connecting frame 16.
[0049] Due to the design of the protective shell 24, the closing effect of the power motor 17 is achieved, dust and rain are prevented from entering the inside of the power motor 17, and the service life of the power motor 17 is improved.
[0050] In some examples, the outer surface of the connecting seat 25 is movably connected with the inside of the top of the fixed plate 12, and the top of the connecting seat 25 is fixedly connected with a lifting ring 26.
[0051] After the lifting hook is hung with the lifting ring 26, the whole device and the device bottom mounted steel pipe can be lifted and operated.
[0052] The working principle and use process of the utility model:
[0053] When it is necessary to adjust the distance between the hooks 10 to adapt to steel pipes of different length sizes, the driving motor 2 is started, which will make the rotating shaft 3 drive the rotating rod 4 to rotate and make the two inclined rods 5 move. At this time, under the limiting action of the shell 1, the telescopic plates 6 will drive the rectangular blocks 7 to move away from the driving motor 2, so that the two telescopic plates 6 are extended from the inside of the shell 1, and then drive the steel cables 8 and the hooks 10 at the bottom of the telescopic plates 6 to move, achieving the purpose of adjusting the distance between the hooks 10, so that the device can adapt to the hoisting operation of steel pipes of various length sizes, avoiding the local stress concentration of the steel pipes, thereby avoiding the deformation of the steel pipes.
[0054] When the lifting rings 26 are excessively worn during long-term use and need to be replaced, the power motor 17 is started at this time, which will make the rotating rod 18 drive the rotating rod 19 to rotate, so that the rotating rod 19 extrudes and pushes the two sleeve rods 20, and the two sleeve rods 20 drive the two movement plates 21 and the two insertion blocks 22 to move horizontally away from each other under the limiting action of the limiting rods 23, so that the insertion blocks 22 are finally separated from the inside of the connecting seats 25, achieving the purpose of facilitating the replacement of the connecting seats 25 and the lifting rings 26, improving the efficiency of the operators in replacing the lifting rings 26, and reducing the labor intensity of the operators.
[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.
Claims
1. A lifting device for steel pipes, comprising a housing (1), characterized in that: The top of the inner chamber of the shell (1) is fixedly connected with a driving motor (2), the other end of the output shaft of the driving motor (2) is fixedly sleeved with a rotating shaft (3), the other end of the rotating shaft (3) is fixedly sleeved with a rotating rod (4), the left and right sides of the rotating rod (4) are both hingedly connected with an inclined rod (5), the other end of the inclined rod (5) is hingedly connected with an expansion plate (6), the outer surface of the expansion plate (6) is movably connected with the inner surface of the shell (1), the front and back surfaces of the expansion plate (6) are both fixedly connected with a rectangular block (7), and the outer surface of the rectangular block (7) is movably connected with the inside of the shell (1).
2. A device for lifting a steel pipe according to claim 1, characterized in that: The front and back of the left bottom of the expansion plate (6) are both fixedly connected with a steel cable (8), the bottom end of the steel cable (8) is fixedly connected with a connecting block (9), and the bottom of the connecting block (9) is hingedly connected with a lifting hook (10).
3. A device for lifting a steel pipe according to claim 1, characterized in that: The top of the expansion plate (6) is hingedly connected with a connecting rod (11), and the other end of the connecting rod (11) is hingedly connected with a fixed plate (12).
4. A device for handling steel pipes according to claim 3, characterized in that: The bottom of the fixed plate (12) is fixedly connected with a mounting plate (13), the left and right sides of the bottom of the mounting plate (13) are both fixedly connected with a vertical rod (14), the outer surface of the vertical rod (14) is movably sleeved with a hollow rod (15), and the hollow rod (15) is fixedly installed at the top of the shell (1).
5. A device for handling steel pipes according to claim 3, characterized in that: The bottom of the fixed plate (12) is fixedly connected with a connecting frame (16), the bottom of the connecting frame (16) is fixedly connected with a power motor (17), and the other end of the output shaft of the power motor (17) is fixedly sleeved with a rotating rod (18).
6. A device for handling steel pipes according to claim 5, characterized in that: The other end of the rotating rod (18) penetrates through the connecting frame (16) and extends into the inside of the connecting frame (16) and is fixedly sleeved with a rotating rod (19), and the left and right sides of the outer surface of the rotating rod (19) are both movably connected with a sleeve rod (20).
7. A device for handling steel pipes according to claim 6, characterized in that: The outer side of the sleeve rod (20) is fixedly connected with a moving plate (21), the inner side of the moving plate (21) is fixedly installed with a plug-in block (22), the other end of the plug-in block (22) penetrates through the fixed plate (12) and extends into the inside of the fixed plate (12) and is movably connected with a connecting seat (25).
8. A device for handling steel pipes according to claim 3, characterized in that: The front and back surfaces of the fixed plate (12) are both fixedly connected with a limiting rod (23), and the outer surface of the limiting rod (23) is movably sleeved with the inside of the moving plate (21).
9. A device for handling steel pipes according to claim 5, characterized in that: The outer surface of the power motor (17) is fixedly connected with a protective shell (24), and the protective shell (24) is fixedly installed at the bottom of the connecting frame (16).
10. A device for handling steel pipes according to claim 7, characterized in that: The outer surface of the connecting seat (25) is movably connected with the inside of the top of the fixed plate (12), and the top of the connecting seat (25) is fixedly connected with a lifting ring (26).