A steel pipe hoist

Abstract

This application discloses a steel pipe hoisting vehicle, belonging to the field of steel pipe hoisting technology. It includes a crane and stacked steel pipes. The crane is equipped with a hook, and a hoisting rope is attached to the hook. Two hoisting straps are attached to the stacked steel pipes, distributed laterally. Each hoisting strap has an opening at its upper end, within which a steel ring is installed. A slot is formed in the steel ring, and a block is inserted into the slot. Connecting ropes are installed in both sets of steel rings. A connecting block is fixed between the hoisting rope and the two connecting ropes. A pull rope is fixed to the connecting block, and a limit baffle is connected to the pull rope. A protective strip and a support rod are provided at the limit baffle. The length of the connecting rope at the point where the connecting block is offset from the center of the stacked steel pipes and furthest from the limit baffle is greater than that of the connecting rope at the other end. The beneficial effect of this application is that, through the two connecting ropes and the connecting block, the stacked steel pipes are kept in an inclined state during hoisting, and the limit baffle supports and limits the movement of the stacked steel pipes.

Description

Technical Field

[0001] This application relates to the field of steel pipe hoisting technology, and more specifically, to a steel pipe hoisting vehicle. Background Technology

[0002] Steel pipes are a commonly used engineering material. When transporting steel pipes, mechanical manufacturing companies mostly use steel wire ropes for bundled handling. However, using traditional steel wire rope hoisting often makes people physically and mentally exhausted.

[0003] In the past, when steel pipes were transported to the construction site, they were usually simply tied together with wire. During unloading, transfer, and hoisting, due to external factors, the wire binding was not secure or could not support the weight of the entire bundle of steel pipes, posing safety hazards such as falling objects from heights and being struck by objects. In some cases, due to external factors, after the steel pipes were tied with ropes or wires, when the steel pipes were lifted, it was necessary to ensure that the steel pipes were tied tightly enough. If the steel pipes in the middle were not stable, some or all of the steel pipes could easily slip off the binding ropes, causing great safety hazards.

[0004] Therefore, a steel pipe hoisting vehicle is needed to solve the above problems. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a steel pipe hoisting vehicle, comprising: a crane, a telescopic boom mounted on the crane, a hook mounted at the top of the telescopic boom, a stack of steel pipes suspended on the hook, two hoisting straps pre-wound around the outer periphery of the stacked steel pipes, the left end of the stacked steel pipes abutting against a limit baffle, a protective strap provided near the end of the limit baffle near the stacked steel pipes, a pull rope and a connecting rope respectively connected to the upper ends of the protective strap and the two hoisting straps, the connecting rope and the pull rope extending upwards and converging together, a connecting block fixed at the close ends of the connecting rope and the pull rope, a hoisting rope fixed at the upper end of the connecting block, the hoisting rope being arranged in a loop and suspended on the hook, and a fixing block inserted into the stacked steel pipes at the limit baffle.

[0007] Preferably, the length of the connecting rope on the right side is less than the length of the connecting rope on the left side, and the connecting block is positioned off-center from the middle of the stacked steel pipes.

[0008] Preferably, the lifting strap is a strip attached to the outside of the stacked steel pipes, with the ends of the lifting strap located at the upper end of the stacked steel pipes, such as... Figure 4 As shown, the upper end of the hoisting belt is provided with an opening, and a steel ring is fixed on the hoisting belt. The steel ring has a notch that communicates with the opening.

[0009] Preferably, a slot is provided on the inner circumference of the steel ring, and a plug is inserted into the slot. The diameter of the connecting rope is smaller than the opening width of the opening, and the connecting rope can be inserted into the steel ring and abut against the plug.

[0010] Preferably, the protective strip is strip-shaped and attached to the outside of the stacked steel pipes. Two sliding rods distributed on the left and right are inserted and fixed at the upper end of the protective strip. A connector is fixed at one end of each sliding rod. A sliding groove is provided on the limiting baffle. The other end of each sliding rod passes through the sliding groove and is fixedly connected to a sliding block. The sliding block slides back and forth with the sliding groove. Two symmetrical fixing blocks are fixed at the left end of the limiting baffle. An electric rotating rod is rotatably connected to the two fixing blocks. The electric rotating rod extends back and forth through the two sliding blocks and is threadedly connected to the sliding blocks. The threads at the front and rear ends of the electric rotating rod are opposite. The pull rope is fixedly connected between the connector and the connecting block.

[0011] Preferably, at least two support rods are provided, one in front and one behind. The fixing block and the fixing block have threaded holes distributed at the corners of the fitting end of the limiting baffle. Threaded parts are installed at the threaded holes and inserted into the limiting baffle for threaded connection and fixation. The fixing blocks are symmetrically arranged in front and behind. A transmission box is connected between the two support rods. The transmission box includes a protective shell. The support rod is fixedly connected between the protective shell and the limiting baffle. Two transmission wheels are provided inside the protective shell, one in front and one behind. The transmission wheels are fixedly connected to the support rods. A transmission belt is connected between the two transmission wheels. A turntable is fixedly mounted on the support rod at the front end.

[0012] The beneficial effects of this application are as follows: 1. By setting the length of the two connecting ropes and offsetting the connecting block from the center of the stacked steel pipes, the stacked steel pipes are tilted during hoisting, which enables the limiting baffle to support the stacked steel pipes and limit their movement, thus preventing the steel pipes from slipping during hoisting and improving the safety of steel pipe hoisting at construction sites.

[0013] 2. During hoisting, the connecting rope supports the insert blocks, preventing them from detaching due to external factors (such as strong winds or external forces) causing the stacked steel pipes to sway. The insertion and connection of the insert blocks allows for quick assembly and disassembly of the hoisting belt. The strip-shaped hoisting belt increases friction with the stacked steel pipes, preventing them from sliding left and right at the hoisting belt and further improving the stability of the stacked steel pipes.

[0014] 3. During the process of lifting the stacked steel pipes, the limiting baffle can automatically fit against the stacked steel pipes by pulling the rope and guiding the support rod, so that the staff does not need to push the limiting baffle to move. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the vehicle body structure according to an embodiment of a steel pipe hoisting vehicle of this application; Figure 2 This is a schematic diagram of the lifting structure according to an embodiment of a steel pipe hoisting vehicle of this application; Figure 3 yes Figure 2 A schematic diagram of the appearance after removing the connecting rope, pull rope, suspension rope and connecting block in the embodiment; Figure 4 yes Figure 3 A partially enlarged schematic diagram of the hoisting belt in the embodiment; Figure 5 yes Figure 4 A schematic diagram of the appearance of the steel ring after it has been separated from the insert block in the embodiment; Figure 6 yes Figure 2 A side view of the structure in the embodiment; Figure 7 yes Figure 2 A schematic diagram of the front view structure in the embodiment; Figure 8 yes Figure 3 An enlarged view of point A in the embodiment; Figure 9 yes Figure 3 Enlarged view of point B in the embodiment; Figure 10yes Figure 7 Enlarged schematic diagram at point C in the embodiment.

[0018] Reference numerals: 10. Crane; 11. Hook; 12. Stacked steel pipes; 13. Lifting belt; 14. Limiting baffle; 15. Connecting rope; 16. Pull rope; 17. Lifting rope; 20. Opening; 21. Steel ring; 22. Insert block; 23. Slot; 30. Protective belt; 31. Sliding rod; 32. Connector; 33. Connecting block; 34. Sliding block; 35. Fixing block; 36. Electric rotating rod; 37. Sliding groove; 40. Fixing block; 41. Support rod; 42. Turntable; 43. Transmission box. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] It should be noted that, in this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figure 1-3 and Figure 7A steel pipe hoisting vehicle includes: a crane 10, a telescopic boom mounted on the crane 10, a hook 11 mounted on the top of the telescopic boom, and stacked steel pipes 12 suspended on the hook 11. Two lifting straps 13, arranged laterally, are pre-wound around the outer periphery of the stacked steel pipes 12. The left end of the stacked steel pipes 12 abuts against a limit baffle 14. A protective strip 30 is provided near the end of the limit baffle 14 close to the stacked steel pipes 12, and the bottom end of the protective strip 30 is fixedly connected to the bottom part of the limit baffle 14 to prevent... The upper ends of the protective belt 30 and the two hoisting belts 13 are respectively connected to pull ropes 16 and connecting ropes 15. The connecting ropes 15 and pull ropes 16 extend upward and converge together. A connecting block 33 is fixed at the close ends of the connecting ropes 15 and pull ropes 16. A hoisting rope 17 is fixed at the upper end of the connecting block 33. The hoisting rope 17 is arranged in a ring and suspended on the hook 11. A fixing block 40 is provided at the limiting baffle 14 and inserted into the stacked steel pipes 12. The length of the connecting rope 15 on the right side is shorter than that of the connecting rope 15 on the left side. The length of the connecting block 33 is offset from the middle of the stacked steel pipes 12. The crane 10 controls the telescopic boom to carry out the lifting work, lifting the hook 11 and the lifting rope 17, so that the lifting rope 17 is connected to the connecting block 33. Under the fixed connection of the connecting block 33, the connecting rope 15 and the pull rope 16 are moved, thereby moving the connecting rope 15 and the pull rope 16 to the stacked steel pipes 12 that are bound by the lifting belt 13. The two connecting ropes 15 are inserted into the lifting belt 13 from the left and right ends respectively for lifting. Limit stop Plate 14 is inserted into the stacked steel pipe 12 by fixing block 40 for limiting, and further limited by protective belt 30. Then, the stacked steel pipe 12 is lifted and moved to the designated position. During the lifting process, due to the different lengths of connecting rope 15 and the deviation of the position of connecting block 33, the stacked steel pipe 12 is tilted as a whole. The section of stacked steel pipe 12 near the limiting baffle 14 is tilted downward. The limiting baffle 14 is attached to the stacked steel pipe 12 for limiting.

[0027] Reference Figure 4-5 As shown in the figure, the lifting belt 13 of the crane 10 is attached to the outside of the stacked steel pipes 12 in a strip shape. The ends of the lifting belt 13 are located at the upper ends of the stacked steel pipes 12, such as... Figure 4As shown, the upper end of the hoisting belt 13 is provided with an opening 20. A steel ring 21 is fixed on the hoisting belt 13. The steel ring 21 has a notch that communicates with the opening 20. A slot 23 is provided on the inner circumference of the steel ring 21. A plug block 22 is inserted into the slot 23 and closely attached to it. The diameter of the connecting rope 15 is smaller than the opening width of the opening 20. The connecting rope 15 can be inserted into the steel ring 21 and abut against the plug block 22. During the process of inserting the connecting rope 15 into the hoisting belt 13, the two connecting ropes 15 on the left and right are inserted from the two steel rings 21 at their far ends (the two openings 20 on the left and right), so that the outer end of the connecting rope 15 can abut against the plug block 22. During the hoisting process, the connecting rope 15 is taut due to the tension at the connecting block 33, as shown in the crane 10 figure. This will exert an inward pushing force on the plug block 22 (in the direction away from the opening 20), thereby ensuring that the plug block 22 is inserted into the steel ring 21 and preventing the plug block 22 from falling off due to external force.

[0028] Reference Figure 2 and Figure 8 The protective strip 30 is strip-shaped and attached to the outside of the stacked steel pipe 12. Two sliding rods 31 distributed on the left and right are inserted and fixed at the upper end of the protective strip 30. One end of the sliding rod 31 is fixed with a connector 32. The limiting baffle 14 is provided with a sliding groove 37. The other end of the sliding rod 31 passes through the sliding groove 37 and is fixedly connected to a sliding block 34. The sliding block 34 and the sliding groove 37 slide in a front-to-back manner. Two fixed blocks 35 symmetrically fixed at the left end of the limiting baffle 14 are fixed. An electric rotating rod 36 is rotatably connected to the two fixed blocks 35. The electric rotating rod 36 extends front-to-back through the two sliding blocks 34 and is threadedly connected to the sliding blocks 34. The front and rear ends of the electric rotating rod 36 have opposite threads. The pull rope 16 is fixedly connected between the connector 32 and the connecting block 33. Based on the shape of the stacked steel pipes 12, the front-to-back distance between the two sliding rods 31 is controlled, and the protective belt 30 is fitted to the outer end of the stacked steel pipes 12 so that the shape of the protective belt 30 is approximately the same as that of the hoisting belt 13. Specifically, the motor on the electric rotating rod 36 is operated to control the rotation of the bidirectional screw at the electric rotating rod 36, which drives the two sliding blocks 34 threadedly connected to the electric rotating rod 36 to move closer to each other. The sliding blocks 34 drive the fixedly connected sliding rods 31 to move closer to each other, so that the upper end of the protective belt 30 is pulled by the sliding rods 31, and the rotation of the protective belt 30 and the sliding rods 31 is combined with the outer end of the stacked steel pipes 12 to limit the movement.

[0029] Reference Figure 6 and Figure 9At least two support rods 41 are provided, one in front and one behind. The fixing blocks 40 and the fixing blocks 40 are provided with threaded holes distributed at the corners of the fitting end of the limiting baffle 14. Threaded parts are installed at the threaded holes and inserted into the limiting baffle 14 for threaded connection and fixation. The fixing blocks 40 are symmetrically arranged in front and behind. A transmission box 43 is connected between the two support rods 41. The transmission box 43 includes a protective shell. The protective shell is fixedly connected to the limiting baffle 14. Two transmission wheels are provided in the protective shell, one in front and one behind. The transmission wheels are fixedly connected to the support rods 41. A transmission belt is connected between the two transmission wheels. A turntable 42 is fixedly provided on the support rod 41 at the front end. When the stacked steel pipes 12 are placed on the ground, the bottom part of the stacked steel pipes 12 is in contact with the ground. The lower end of the limiting baffle 14 cannot be inserted into the lower end of the stacked steel pipes 12 for support. The workers push the limiting baffle 14 to bring it closer to the end of the stacked steel pipes 12, so that the support rod 41 connected to the limiting baffle 14 can enter and exit into the stacked steel pipes 12 (the support rod 41 is longer than the protective belt 30) for initial limiting. During the subsequent lifting of the connecting block 33, the connecting head 32 is pulled by the tightly set pull rope 16. The connecting head 32 transmits the tension to the limiting baffle 14 through the sliding rod 31 and the sliding block 34, thereby pushing the limiting baffle 14 closer to the stacked steel pipes 12 and making it fit. The protective belt 30 is retracted and abuts against the outer end of the stacked steel pipes 12 by the partial operation control of the electric rotating rod 36. During the disassembly process, the crane 10 lifts the stacked steel pipes 12 to another location. Afterwards, the workers remove the connecting rope 15 from the opening 20 and take out the insert block 22, so that the hoisting belt 13 is detached from the stacked steel pipes 12. The stacked steel pipes 12 will tend to lie flat under the action of gravity. At this time, the front and rear ends of the stacked steel pipes 12 are supported by the support rod 41 and the position of one end of the stacked steel pipes 12 is further restricted by the protective belt 30, which plays a protective role and prevents the stacked steel pipes 12 from spreading. At this time, the workers can move to the left side of the limiting baffle 14 and pull the limiting baffle 14 or rotate the turntable 42 to pull the support rod 41 out of the stacked steel pipes 12 or shorten the insertion depth at the stacked steel pipes 12. The crane 10 lifts the limiting baffle 14 through the hook 11 for the next hoisting. By adding support rods 41 at the stacked steel pipes 12 below, so that there are four support rods 41, the dispersion of the stacked steel pipes 12 can be further restricted.

[0030] Working process or usage method: 1. The hoisting belt 13 is secured to the stacked steel pipes 12. The hoisting belt 13 is secured by the insertion of a plug 22 into a slot 23. The connecting rope 15 is fitted into the steel ring 21 through the opening 20. During the upward lifting of the hoisting rope 17, the connecting rope 15 abuts against the plug 22 inside the steel ring 21, preventing the plug 22 from dislodging and improving the stability of the hoisting belt 13. The stacked steel pipes 12 are normally placed on the ground. The lower end of the connecting block 33 is connected to a protective belt 30 via a pull rope 16. The protective belt 30 is equipped with a limit baffle 14, and the limit baffle 14 is equipped with a fixing block 40. Before hoisting operations, the operator can push the limit baffle 14 towards the stacked steel pipes 12, thereby inserting the fixing block 40 at the limit baffle 14 into the stacked steel pipes 12 (the support rod 41 is inserted into the two stacked steel pipes 12 located at the outer end, such as...). Figure 6 As shown), due to the circular opening of the stacked steel pipe 12, the support rod 41 can smoothly enter the stacked steel pipe 12 (the length of the support rod 41 inside the stacked steel pipe 12 is greater than the left and right length of the protective belt 30). Therefore, during the upward lifting process of the hoisting rope 17, the tension received at the pull rope 16 will cause the hoisting belt 13 to wrap around the outside of the stacked steel pipe 12. The user controls the rotation of the electric rotating rod 36 to bring the two sliding rods 31 closer together, thereby causing the protective belt 30 connected to the sliding rods 31 to adhere to the stacked steel pipe 12 for limiting, thus increasing the stability of the stacked steel pipe 12. Figure 7 As shown, during the hoisting process, the connecting rope 15 and the pull rope 16 are in a taut state. At this time, there is a deviation between the middle position of the hoisting rope 17 and the two hoisting belts 13 (the length of the connecting rope 15 on the right end is less than the length of the connecting rope 15 on the left end). As a result, during the hoisting process, affected by the center of gravity of the stacked steel pipes 12, the stacked steel pipes 12 will be in a tilted state. At this time, the left end of the stacked steel pipes 12 tilts downward and the right end tilts upward. Similarly, the limiting baffle 14 receives the taut tension of the pull rope 16, which brings the limiting baffle 14 closer to the stacked steel pipes 12, thereby causing the stacked steel pipes 12 to abut against the limiting baffle 14. The limiting baffle 14 abuts against and supports the stacked steel pipes 12, further increasing the stability of the stacked steel pipes 12.

[0031] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A steel pipe hoisting vehicle, characterized in that, include: A crane (10) and stacked steel pipes (12) are arranged together. The crane (10) is equipped with a hook (11) and a lifting rope (17) is suspended on the hook (11). Two lifting straps (13) are attached to the stacked steel pipes (12). The hoisting belt (13) is arranged in a strip shape and fits against the outer end of the stacked steel pipe (12). The upper end of the hoisting belt (13) is connected to the upper end and has an opening (20). A steel ring (21) is installed in the opening (20). A slot (23) is opened on the steel ring (21). A plug (22) is inserted into the slot (23). A connecting rope (15) is provided in both the left and right sets of steel rings (21). A connecting block (33) is fixed between the hoisting rope (17) and the two connecting ropes (15). A pull rope (16) is fixed on the connecting block (33). A limit baffle (14) is connected to the pull rope (16). A protective belt (30) and a support rod (41) are provided at the limit baffle (14). The length of the connecting rope (15) that is away from the center of the stacked steel pipe (12) and away from the limit baffle (14) of the connecting block (33) is greater than that of the connecting rope (15) at the other end.

2. The steel pipe hoisting vehicle according to claim 1, characterized in that: The upper end of the protective belt (30) is provided with two sliding rods (31) distributed front and back. Each of the two sliding rods (31) is fixed with a connector (32). The pull rope (16) is fixedly connected between the connector (32) and the connecting block (33). The limiting baffle (14) has two sliding grooves (37). A sliding block (34) is slidably fitted on the sliding groove (37). The sliding block (34) is fixedly connected to the sliding rod (31). The limiting baffle (14) is provided with a rotatable electric rotating rod (36) connected to the sliding block (34). The outer periphery of the electric rotating rod (36) is provided with two threads distributed front and back, and the two threads rotate in opposite directions.

3. A steel pipe hoisting vehicle according to claim 1, characterized in that: A fixing block (40) is fixed on the limiting baffle (14). The fixing block (40) is threadedly connected to the support rod (41). The support rod (41) is inserted into the stacked steel pipe (12). A turntable (42) is fixed on the support rod (41). A transmission box (43) is connected between the two support rods (41). The transmission box (43) is installed on the limiting baffle (14). The support rod (41) has at least two distributed in the front and back.

4. A steel pipe hoisting vehicle according to claim 1, characterized in that: The limiting baffle (14) is L-shaped and can abut against and support the left end and the bottom end of the stacked steel pipe (12).

5. A steel pipe hoisting vehicle according to claim 1, characterized in that: The two openings (20) on the two hoisting belts (13) are set apart from each other, and the slot (23) is opened in the opposite position of the openings (20).

6. A steel pipe hoisting vehicle according to claim 1, characterized in that: The length of the support rod (41) inserted into the stacked steel pipe (12) is greater than the length of the bottom end of the limiting baffle (14) and the length of the protective strip (30) in the left and right directions.

7. A steel pipe hoisting vehicle according to claim 1, characterized in that: The bottom end of the protective strip (30) is fixedly connected to the bottom end of the limiting baffle (14).

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