A special lifting tool for steel beam hoisting

Abstract

This invention discloses a special lifting device for steel beams in the field of hoisting equipment technology. It includes a plurality of lifting lugs, a longitudinal beam, and a plurality of anchor seats arranged sequentially from top to bottom. The longitudinal beam includes a first plate, a second plate fixedly connected to the bottom of the first plate, and a third plate fixedly connected to the bottom of the second plate. The first and third plates have the same overall structure, but the length of the second plate is less than the lengths of the first and third plates. A plurality of lifting lugs are symmetrically arranged on the top of the first plate, each lug having a through hole. A plurality of anchor seats are symmetrically arranged at the bottom of the third plate. Each anchor seat includes a fourth plate, a fifth plate fixedly connected to the fourth plate, and a sixth plate fixedly connected to the bottom of the fourth plate. The sixth plate has a plurality of symmetrically arranged through holes. This device has a simple structure, and through the design of the longitudinal beam, it can achieve rapid hoisting and positioning of steel beams, thereby saving construction costs and improving construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of hoisting equipment technology, specifically a special hoisting tool for steel beam hoisting. Background Technology

[0002] In recent years, with the continuous development of my country's economy and science and technology, and the increasing perfection of infrastructure construction, steel box girder bridges, as a commonly used structural form in current bridge engineering, can improve the safety and reliability of engineering projects. However, in the construction process of steel structure bridges, lifting equipment has always been an indispensable part. Whether it is on-site fabrication, pre-assembly, or on-site assembly and welding, lifting equipment is required to assist in construction. At present, most domestic and foreign companies use the lifting method of welding lifting lugs. The lifting equipment needs to be welded and fixed to the base material, which directly damages the base material. On the other hand, the fabrication, installation, and repair and grinding of the base material after dismantling the lifting equipment all consume manpower, material resources, and financial resources, which not only increases construction costs but also affects the overall construction progress. Using special lifting equipment for steel beams can reduce the direct damage to the base material when the lifting equipment is welded and fixed to the base material. It also reduces the construction costs of fabricating, installing, and repairing and grinding the base material after dismantling the lifting equipment, and increases the overall construction progress. To solve the above problems, a special lifting equipment for steel beams needs to be proposed. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a special lifting tool for steel beams, which, through the design of the longitudinal beams, enables the rapid lifting and positioning of steel beams, thereby saving construction costs and improving construction efficiency.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A special lifting tool for steel beam hoisting includes a plurality of lifting lugs, a longitudinal beam and a plurality of anchor seats arranged sequentially from top to bottom. The longitudinal beam includes a first plate, a second plate is fixedly connected to the bottom of the first plate, and a third plate is fixedly connected to the bottom of the second plate. The first plate and the third plate have the same overall structure, and the length of the second plate is less than the length of the first plate and the third plate.

[0005] Several lifting lugs are symmetrically arranged on the top of the first plate, and the lifting lugs are provided with through holes. Several anchor seats are symmetrically arranged on the bottom of the third plate. The anchor seats include a fourth plate, a fifth plate is fixedly connected to the fourth plate, and a sixth plate is fixedly connected to the bottom of the fourth plate. Several symmetrically arranged through holes are opened on the sixth plate.

[0006] The principle and beneficial effects of the basic scheme are as follows: During operation, the assembly of the device is checked, and the lifting lugs and anchor seats are fixedly connected to the longitudinal beam. Then, when hoisting the beam segment, precision-rolled threaded steel is passed through the through hole to connect the main beam to the longitudinal beam. The lifting lugs are then lifted by the crane, allowing for rapid hoisting and positioning of the steel beam. This specialized steel beam lifting tool avoids welding the lifting lugs to the base material, making installation and dismantling simple and quick. It achieves the goal of reusing the lifting tool, saving costs, and also reduces the construction costs of tool fabrication, installation, and post-dismantling repair and grinding of the base material, while improving the overall construction progress.

[0007] Furthermore, the lifting lug includes a first mounting part and a second mounting part. The first mounting part includes a lug plate, and both sides of the lug plate are provided with rings, which are concentrically connected with the lug holes. The first mounting part also includes a first side plate and a second side plate, both of which are located in the length direction of the lug plate, and the length of the first side plate is greater than the length of the second side plate. The second side plate is provided with a plurality of round holes, which are offset from the second side plate. Nuts are welded into the round holes, and the nuts pass through the round holes and extend to the outside of the round holes.

[0008] A first horizontal plate is slidably connected to the first side plate. The first horizontal plate is located at the bottom of the ear plate. The ear plate is provided with a first fan-shaped hole. The first fan-shaped hole is located at the connection between the first side plate and the first horizontal plate. A second horizontal plate is provided below the first horizontal plate. The second horizontal plate is fixedly connected to the first side plate. A first fixing plate is fixedly connected to the bottom of the second horizontal plate. The first fixing plate is fixedly connected to the first side plate. The first fixing plate is provided with a second fan-shaped hole. The second fan-shaped hole is located at the connection between the second horizontal plate and the first side plate. A first baffle is fixedly connected to the side of the first fixing plate away from the first side plate.

[0009] The second mounting part includes a mounting plate with the same structure as the first side plate. The mounting plate has several threaded holes corresponding to the round holes. Bolts corresponding to nuts are installed in the threaded holes. A third horizontal plate is installed below the bolts and is slidably connected to the mounting plate. A fourth horizontal plate is installed below the third horizontal plate and is fixedly connected to the mounting plate. A second fixing plate is installed below the fourth horizontal plate and is fixedly connected to the mounting plate. The second fixing plate has a third fan-shaped hole located at the connection between the fourth horizontal plate and the mounting plate. A second baffle is fixedly connected to the side of the second fixing plate away from the mounting plate.

[0010] The principle and beneficial effects of the basic scheme are as follows: During operation, the center of gravity of the steel component is first calculated, and a reasonable lifting point position is selected. During installation, the first and second horizontal plates of the lifting lug are aligned with the position of the first plate. Then, the first plate is secured in the gap between the first and second horizontal plates. The third and fourth horizontal plates are then secured to the first plate, and bolts are inserted into the nuts. The first and second baffles then abut against the second plate, thus installing the lifting lug on top of the first plate and fixing it in place. When the lifting point position needs to be changed according to different requirements, the bolts are simply removed from the nuts, allowing the second mounting part to detach from the lug plate. A suitable position can then be selected to install the lifting lug. This allows the lifting lug's position to be flexibly adjusted according to the needs of the lifting point. Furthermore, the design of the first, second, and third sector-shaped holes provides sufficient space for movement during thermal expansion and contraction, thereby reducing the impact of thermal expansion and contraction on the device.

[0011] Furthermore, a push plate is fixedly connected to the top of the first horizontal plate, and several cylinders are fixedly connected to the top of the push rod. A support rod is fixedly connected to one side of each cylinder. The end of the support rod away from the cylinder is fixedly connected to the ear plate. Several openings larger than the bolt diameter are provided on the cylinder, and the openings are at the same horizontal plane as the bolts. A push rod is provided inside the cylinder. One end of the push rod is fixedly connected to the top of the push plate. The end of the push rod away from the push plate is inclined. The inclined end of the push rod is close to the opening. A spring is fixedly connected to the top wall of the cylinder. The spring is sleeved on the push rod. The end of the spring away from the cylinder is fixedly connected to the push plate.

[0012] The principle and beneficial effects of the basic scheme are as follows: After the first mounting part is clamped onto the steel beam, the bolt needs to be inserted into the nut to fix the lifting lug. When the bolt is inserted into the nut, it will protrude from the nut as the insertion length varies. Since the through-hole and the bolt are on the same horizontal plane, when the bolt moves towards the nut, the bolt protruding from the nut will gradually approach the through-hole and pass through it. After the bolt passes through the through-hole, it will contact the push rod. Under the pressure of the bolt, the push rod will move downward. Because the push plate is fixedly connected to the first horizontal plate, the first horizontal plate will also move vertically. This allows the distance between the first and second horizontal plates on the first mounting part to gradually decrease while the bolt is used to fix the first mounting part, thus securing the lifting lug more firmly onto the first plate. At the same time, when the bolt is removed, under the spring's rebound force, the push plate will move upward with the spring's tension, and the first horizontal plate will return to its original position.

[0013] Furthermore, both the first and second fixing plates have several fixing grooves at their bottoms, and the lower part of the side walls on both sides of the fixing grooves has an installation channel. A rotating shaft is inserted into the installation channel, and the rotating shaft is rotatably engaged with the installation channel. A roller and a torque rangefinder are connected to the rotating shaft. The roller is filled with a non-Newtonian fluid. The torque rangefinder is detachably connected to the rotating shaft. Both the roller and the torque rangefinder are electrically connected to a power source. The torque rangefinder is signal-connected to the controller, and the controller is signal-connected to the mobile device.

[0014] The basic principle and beneficial effects of this device are as follows: Before using this device, insert the rotating shaft into the installation channel. After calculating the center of gravity position of the steel component, pre-install the device at both ends of the first plate. After pre-installation, turn on the power supply. The power supply drives the rollers. Input the calculated center of gravity position and the distance between the two ends of the steel component on the mobile device. When the rollers rotate, they drive the rotating shaft to rotate. The torque measuring instrument starts measuring when the rotating shaft rotates. The torque measuring instrument transmits the measurement data to the controller in real time. When the measured data is equal to the data, the controller will send a signal, the power supply will be cut off, and the rollers and rotating shaft will stop rotating. Fix the pre-installed device to the lifting point position by tightening the bolts. After fixed installation, the rotating shaft can be removed from the installation channel. It can automatically measure the lifting point position without manual measurement, reducing the workload of workers and improving work efficiency.

[0015] During the rolling process, the non-Newtonian fluid filling the roller changes viscosity due to the pressure generated between the roller and the inner wall of the channel, causing the non-Newtonian fluid to solidify and fill the roller, increasing its strength. This also helps maintain a distance between the bottom of the device and the steel component, preventing friction between the bottom of the device and the steel component from affecting the roller's movement. When the lifting device lifts the device through the ear hole, the instantaneous rigid force exerted by the steel component on the device is transmitted to the roller through the device. The non-Newtonian fluid inside the roller is rapidly compressed and solidifies, increasing the roller's strength and buffering the instantaneous rigid force from the steel component.

[0016] Furthermore, an elastic element is provided at the top of the second horizontal plate, and a buffer plate is fixedly connected to the end of the elastic element away from the second horizontal plate. The buffer plate is made of rubber material, and the structure of the fourth horizontal plate is the same as that of the second horizontal plate.

[0017] The principle and beneficial effects of the basic scheme are as follows: When the steel components are lifted, they will generate an instantaneous rigid force on the second and fourth horizontal plates. If the rigid force is too strong, it will cause certain damage to the second and fourth horizontal plates. Therefore, when the second and fourth horizontal plates are subjected to an instantaneous rigid force, the elastic deformation of the elastic element can reduce the instantaneous rigid force generated by the steel components on the second and fourth horizontal plates, thereby better protecting the device, extending the service life of the device, and saving costs.

[0018] Furthermore, several support plates are symmetrically fixedly connected between the first plate and the third plate, and all of the support plates are located above the anchorage.

[0019] The principle and beneficial effects of the basic scheme are as follows: the design of several support plates can increase the supporting force of the first, second and third plates, thereby reducing the problem of damage to the device caused by the excessive weight of the lifted steel components.

[0020] Furthermore, a collar is fixedly connected to the top of the fourth plate. The collar is fitted onto the longitudinal beam, and the top of the collar has several threaded holes for installation.

[0021] The principle and benefits of the basic scheme are as follows: by moving the collar, the position of the anchor seat can be changed, which can be used for the hoisting of steel components of different sizes. When it is moved to the appropriate position, the position of the collar can be fixed by inserting the bolt into the installation threaded hole, thereby realizing flexible adjustment of the position of the anchor seat.

[0022] Furthermore, a scale strip is provided on the top of the first plate.

[0023] The principle and beneficial effects of the basic scheme are as follows: the design of the scale bar facilitates the control of the movement distance of the collar, thereby enabling the collar to move in a relatively symmetrical and appropriate position. Attached Figure Description

[0024] Figure 1 This is a front view of the special lifting tool for steel beam hoisting according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the longitudinal beam of the special lifting tool for steel beam hoisting in an embodiment of the present invention.

[0026] Figure 3 This is a front view of the special lifting tool for steel beam hoisting according to an embodiment of the present invention.

[0027] Figure 4 This is a frontal view of the lifting lugs of the special lifting tool for steel beam hoisting according to an embodiment of the present invention.

[0028] Figure 5 This is a frontal view of the lifting lugs of the special lifting tool for steel beam hoisting according to an embodiment of the present invention.

[0029] Figure 6 for Figure 5 Enlarged view of part A.

[0030] Figure 7 for Figure 5 Enlarged view of part B.

[0031] Figure 8 This is a schematic diagram of the buffer plate of the special lifting tool for steel beam hoisting in an embodiment of the present invention. Detailed Implementation

[0032] The following detailed description illustrates the specific implementation method:

[0033] The reference numerals in the accompanying drawings include: First plate 1, lifting device 2, Second plate 3, Support plate 4, Fourth plate 5, Sixth plate 6, Through hole 7, Fifth plate 8, Third plate 9, Collar 10, Ear plate 11, Ear hole 12, Ring 13, First side plate 14, First sector hole 15, First horizontal plate 16, Second horizontal plate 17, Second sector hole 18, First fixing plate 19, Second fixing plate 20, Third sector hole 21, Fourth horizontal plate 22, Third horizontal plate 23, Bolt 24, Threaded hole 25, Mounting plate 26, Push rod 27, Spring 28, Cylinder 29, Push plate 30, Rotating shaft 31, Roller 32, Torque rangefinder 33, Fixing groove 34, Second side plate 36, Circular hole 37, Nut 38, Buffer plate 171, Elastic element 172.

[0034] Example 1

[0035] The basics are as follows: Figure 1 and Figure 2 As shown: A special lifting tool for steel beam hoisting includes a number of lifting lugs, a longitudinal beam, and a number of anchor seats arranged sequentially from top to bottom. The longitudinal beam includes a first plate 1, a second plate 3 welded to the bottom of the first plate 1, and a third plate 9 welded to the bottom of the second plate 3. The first plate 1 and the third plate 9 have the same overall structure, and the length of the second plate 3 is less than the length of the first plate 1 and the third plate 9. A number of support plates 4 are symmetrically welded between the first plate 1 and the third plate 9, and the support plates 4 are all located above the anchor seats.

[0036] Several lifting lugs are symmetrically arranged on the top of the first plate 1, and each lug has a through hole 12. Several anchor seats are symmetrically welded to the bottom of the third plate 9. The anchor seats include a fourth plate 5, on which a fifth plate 8 is welded, and at the bottom of the fourth plate 5, a sixth plate 6 is welded. The sixth plate 6 has several symmetrically arranged through holes 7. Specifically: the dimensions of the lifting lugs are preferably 24mm*280mm*300mm, and the dimensions of the through holes 12 are preferably φ80mm; the dimensions of the longitudinal beams are preferably 9000mm*400mm*400mm; the spacing between the lifting lugs is preferably 4000mm, the spacing between the anchor seats is preferably 8000mm, and the dimensions of the through holes 7 are preferably φ35mm; and the entire device is made of steel plate.

[0037] The specific implementation process is as follows: During operation, the assembly of the device is checked, and the lifting lugs and anchor seats are fixedly connected to the longitudinal beam. Then, when hoisting the beam segment, precision-rolled threaded steel is passed through the through hole 7 to connect the main beam to the longitudinal beam. The lifting lugs are then lifted by the crane to raise the main beam, enabling rapid hoisting and positioning of the steel beam. Thus, the specialized steel beam lifting tool 2 avoids welding the lifting lugs to the base material, making installation and dismantling simple and quick. This allows for the reuse of lifting tool 2, saving costs and reducing the construction costs of manufacturing, installing, and repairing the base material after dismantling the lifting tool 2. It also improves the overall construction progress of the project.

[0038] Example 2

[0039] The difference from the above embodiments is that, basically as Figure 3 As shown, a collar 10 is fixedly connected to the top of the fourth plate 5. The collar 10 is sleeved on the longitudinal beam. The top of the collar 10 is provided with several mounting threaded holes 25. The top of the first plate 1 is provided with a scale strip.

[0040] The specific implementation process is as follows: By moving the collar 10, the position of the anchor seat can be changed, which can be used for the hoisting of steel components of different sizes. When it is moved to the appropriate position, the position of the collar 10 can be fixed by inserting the bolt 24 into the installation threaded hole 25, thereby realizing the flexible adjustment of the position of the anchor seat.

[0041] Example 3

[0042] The difference from the above embodiments is that, basically as Figure 4 As shown, the lifting lug includes a first mounting part and a second mounting part. The first mounting part includes a lug plate 11, and a ring 13 is provided on both sides of the lug plate 11. The ring 13 is concentrically connected with the lug hole 12. The first mounting part also includes a first side plate 14 and a second side plate 36. The first side plate 14 and the second side plate 36 are both located in the length direction of the lug plate 11, and the length of the first side plate 14 is greater than the length of the second side plate 36. The second side plate 36 is provided with a plurality of round holes 37. The round holes 37 are offset from the second side plate 36. Nuts 38 are welded into the round holes 37 and extend through the round holes 37 to the outside of the round holes 37.

[0043] A first horizontal plate 16 is slidably connected to the first side plate 14. The first horizontal plate 16 is located at the bottom of the ear plate 11. The ear plate 11 is provided with a first fan-shaped hole 15, which is located at the connection between the first side plate 14 and the first horizontal plate 16. A second horizontal plate 17 is provided below the first horizontal plate 16. The second horizontal plate 17 is fixedly connected to the first side plate 14. A first fixing plate 19 is fixedly connected to the bottom of the second horizontal plate 17. The first fixing plate 19 is fixedly connected to the first side plate 14. A second fan-shaped hole 18 is provided on the first fixing plate 19, which is located at the connection between the second horizontal plate 17 and the first side plate 14. A first baffle is fixedly connected to the side of the first fixing plate 19 away from the first side plate 14.

[0044] The second mounting part includes a mounting plate 26 with the same structure as the first side plate 14. The mounting plate 26 is provided with a plurality of threaded holes 25 corresponding to the round holes 37. Bolts 24 corresponding to nuts 38 are provided in the threaded holes 25. A third horizontal plate 23 is provided below the bolts 24. The third horizontal plate 23 is slidably connected to the mounting plate 26. A fourth horizontal plate 22 is provided below the third horizontal plate 23. The fourth horizontal plate 22 is fixedly connected to the mounting plate 26. A second fixing plate 20 is provided below the fourth horizontal plate 22. The second fixing plate 20 is fixedly connected to the mounting plate 26. A third sector-shaped hole 21 is provided on the second fixing plate 20. The third sector-shaped hole 21 is located at the connection between the fourth horizontal plate 22 and the mounting plate 26. A second baffle is fixedly connected to the side of the second fixing plate 20 away from the mounting plate 26.

[0045] The specific implementation process is as follows: During operation, first calculate the center of gravity of the steel component and select a reasonable lifting point position. During installation, align the first horizontal plate 16 and the second horizontal plate 17 of the lifting lug with the position of the first plate 1. Then, clamp the first plate 1 into the gap between the first horizontal plate 16 and the second horizontal plate 17. Then, clamp the third horizontal plate 23 and the fourth horizontal plate 22 onto the first plate 1. At the same time, insert the bolt 24 into the nut 38. Then, the first and second baffles will abut against the second plate 3, thereby installing the lifting lug on the top of the first plate 1 and fixing the lifting lug. When it is necessary to change the lifting point position according to different needs, simply remove the bolt 24 from the nut 38, and then the second mounting part can be detached from the lug plate 11. Then, a suitable position can be selected to install the lifting lug. This allows the lifting lug to be flexibly adjusted according to the needs of the lifting point. At the same time, the design of the first sector hole 15, the second sector hole 18, and the third sector hole 21 allows the device to have a certain amount of room for movement when thermal expansion and contraction occur, thereby reducing the impact of thermal expansion and contraction on the device.

[0046] Example 4

[0047] The difference from the above embodiments is that, basically as Figure 5 , Figure 6 and Figure 7As shown, a push plate 30 is fixedly connected to the top of the first horizontal plate 16, and several cylinders 29 are fixedly connected to the top of the push rod 27. A support rod is fixedly connected to one side of each cylinder 29. The end of the support rod away from the cylinder 29 is fixedly connected to the ear plate 11. Several openings larger than the diameter of the bolt 24 are provided on the cylinder 29, and the openings are at the same horizontal plane as the bolt 24. A push rod 27 is provided inside the cylinder 29. One end of the push rod 27 is fixedly connected to the top of the push plate 30. The end of the push rod 27 away from the push plate 30 is inclined. The inclined end of the push rod 27 is close to the opening. A spring 28 is fixedly connected to the top wall of the cylinder 29. The spring 28 is sleeved on the push rod 27. The end of the spring 28 away from the cylinder 29 is fixedly connected to the push plate 30.

[0048] The specific implementation process is as follows: After the first mounting part is clamped onto the steel beam, the bolt 24 needs to be inserted into the nut 38 and the lifting lug needs to be fixed. When the bolt 24 is inserted into the nut 38, as the insertion length varies, the bolt 24 will protrude from the nut 38. Since the through-hole and the bolt 24 are on the same horizontal plane, when the bolt 24 moves towards the nut 38, the part of the bolt 24 protruding from the nut 38 will gradually approach the through-hole and pass through it. After the bolt 24 passes through the through-hole, the bolt 24 will contact the push rod 27. Thus, under the compressive force of the bolt 24, the push rod 27 will move downward. Because the push plate 30 is fixedly connected to the first horizontal plate 16, the first horizontal plate 16 will also move vertically. This allows the distance between the first horizontal plate 16 and the second horizontal plate 17 on the first mounting part to gradually decrease while the first mounting part is fixed with bolts 24, thus securing the lifting lug more firmly onto the first plate 1. At the same time, when the bolts 24 are removed, the push plate 30 will move upward with the tension of the spring 28 under the spring force, and the first horizontal plate 16 will also return to its original position. This can accommodate I-beams of different thicknesses and increase the stability of the lifting lug installation.

[0049] Example 5

[0050] The difference from the above embodiments is that, basically as Figure 6 As shown, the bottom of the first fixing plate 19 and the second fixing plate 20 are provided with several fixing grooves 34. The lower part of the side wall on both sides of the fixing groove 34 is provided with an installation channel. A rotating shaft 31 is inserted into the installation channel. The rotating shaft 31 is rotatably engaged with the installation channel. A roller 32 and a torque rangefinder 33 are connected to the rotating shaft 31. The roller 32 is filled with a non-Newtonian fluid. The torque rangefinder 33 is detachably connected to the rotating shaft 31. Both the roller 32 and the torque rangefinder 33 are electrically connected to the power supply. The torque rangefinder 33 is signal connected to the controller. The controller is signal connected to the mobile device (the power supply, controller and mobile device are not shown in the figure).

[0051] The specific implementation process is as follows: Before using this device, insert the rotating shaft 31 into the installation channel. After calculating the center of gravity position of the steel component, pre-install the device at both ends of the first plate 1. After pre-installation, turn on the power supply. The power supply drives the roller 32. Input the calculated center of gravity position and the distance between the two ends of the steel component on the mobile device. When the roller 32 rotates, it drives the rotating shaft 31 to rotate. The torque measuring instrument 33 starts to measure when the rotating shaft 31 rotates. The torque measuring instrument 33 transmits the measurement data to the controller in real time. When the measurement data is equal to the data, the controller will send a signal, the power supply will be cut off, and the roller 32 and the rotating shaft 31 will stop rotating. Fix the pre-installed device to the lifting point position by tightening the bolts 24. After fixed installation, the rotating shaft 31 can be taken out from the installation channel. It can automatically measure the lifting point position without manual measurement, reducing the workload of the staff and improving work efficiency.

[0052] During the rolling process of roller 32, the non-Newtonian fluid filled in roller 32 changes viscosity due to the pressure generated between the roller and the inner wall of the channel, causing the non-Newtonian fluid to solidify and fill roller 32, increasing the strength of roller 32 and maintaining a distance between the bottom of the device and the steel component, thus preventing friction between the bottom of the device and the steel component from affecting the movement of roller 32. When the lifting device lifts the device through the ear hole 12, the instantaneous rigid force generated by the steel component is transmitted to roller 32 through the device. The non-Newtonian fluid inside roller 32 is rapidly compressed and becomes solid, increasing the strength of roller 32 and buffering the instantaneous rigid force generated by the steel component.

[0053] Example 6

[0054] The difference from the above embodiments is that, basically as Figure 8 As shown, an elastic element 172 is provided at the top of the second horizontal plate 17. The elastic element 172 can be a spring. A buffer plate 171 is fixedly connected to the end of the elastic element 172 away from the second horizontal plate 17. The buffer plate 171 is made of rubber material, and the structure of the fourth horizontal plate 22 is the same as that of the second horizontal plate 17.

[0055] The specific implementation process is as follows: When the steel components are lifted, they will generate an instantaneous rigid force on the second horizontal plate 17 and the fourth horizontal plate 22. If the rigid force is too strong, it will cause certain damage to the second horizontal plate 17 and the fourth horizontal plate 22. Therefore, when the second horizontal plate 17 and the fourth horizontal plate 22 are subjected to an instantaneous rigid force, the elastic deformation of the elastic element 172 can reduce the instantaneous rigid force generated by the steel components on the second horizontal plate 17 and the fourth horizontal plate 22, thereby better protecting the device, extending the service life of the device, and saving costs.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A special lifting tool for steel beam hoisting, characterized in that: It includes several lifting lugs, longitudinal beams and several anchor seats arranged from top to bottom. The longitudinal beam includes a first plate, a second plate is fixedly connected to the bottom of the first plate, and a third plate is fixedly connected to the bottom of the second plate. The first plate and the third plate have the same overall structure, and the length of the second plate is less than the length of the first plate and the third plate. Several lifting lugs are symmetrically arranged on the top of the first plate, and the lifting lugs are provided with through holes. Several anchor seats are symmetrically arranged on the bottom of the third plate. The anchor seats include a fourth plate, a fifth plate is fixedly connected to the fourth plate, and a sixth plate is fixedly connected to the bottom of the fourth plate. Several symmetrically arranged through holes are opened on the sixth plate. The lifting lug includes a first mounting part and a second mounting part. The first mounting part includes a lug plate, and there are circular rings on both sides of the lug plate. The circular rings are concentrically connected with the lug holes. The first mounting part also includes a first side plate and a second side plate. The first side plate and the second side plate are both located in the length direction of the lug plate, and the length of the first side plate is greater than the length of the second side plate. The second side plate has a number of circular holes, which are staggered. Nuts are welded into the circular holes, and the nuts pass through the circular holes and extend to the outside of the circular holes. A first horizontal plate is slidably connected to the first side plate. The first horizontal plate is located at the bottom of the ear plate. The ear plate is provided with a first fan-shaped hole. The first fan-shaped hole is located at the connection between the first side plate and the first horizontal plate. A second horizontal plate is provided below the first horizontal plate. The second horizontal plate is fixedly connected to the first side plate. A first fixing plate is fixedly connected to the bottom of the second horizontal plate. The first fixing plate is fixedly connected to the first side plate. The first fixing plate is provided with a second fan-shaped hole. The second fan-shaped hole is located at the connection between the second horizontal plate and the first side plate. A first baffle is fixedly connected to the side of the first fixing plate away from the first side plate. The second mounting part includes a mounting plate with the same structure as the first side plate. The mounting plate is provided with several threaded holes corresponding to the round holes. Bolts corresponding to nuts are provided in the threaded holes. A third horizontal plate is provided below the bolts. The third horizontal plate is slidably connected to the mounting plate. A fourth horizontal plate is provided below the third horizontal plate. The fourth horizontal plate is fixedly connected to the mounting plate. A second fixing plate is provided below the fourth horizontal plate. The second fixing plate is fixedly connected to the mounting plate. The second fixing plate is provided with a third fan-shaped hole. The third fan-shaped hole is located at the connection between the fourth horizontal plate and the mounting plate. A second baffle is fixedly connected to the side of the second fixing plate away from the mounting plate. A push plate is fixedly connected to the top of the first horizontal plate. Several cylinders are fixedly connected to the top of the push plate. A support rod is fixedly connected to one side of each cylinder. The end of the support rod away from the cylinder is fixedly connected to an ear plate. Several openings larger than the diameter of the bolts are provided on the cylinders, and the openings are at the same horizontal plane as the bolts. A push rod is provided inside the cylinder. One end of the push rod is fixedly connected to the top of the push plate. The end of the push rod away from the push plate is inclined. The inclined end of the push rod is close to the opening. A spring is fixedly connected to the top wall of the cylinder. The spring is sleeved on the push rod. The end of the spring away from the cylinder is fixedly connected to the push plate at the top of the push rod.

2. The special lifting tool for steel beam hoisting as described in claim 1, characterized in that: The bottom of both the first and second fixing plates is provided with several fixing grooves. The lower part of the side walls on both sides of the fixing grooves is provided with an installation channel. A rotating shaft is inserted into the installation channel and rotates in conjunction with the installation channel. A roller and a torque rangefinder are connected to the rotating shaft. The roller is filled with a non-Newtonian fluid. The torque rangefinder is detachably connected to the rotating shaft. Both the roller and the torque rangefinder are electrically connected to a power source. The torque rangefinder is signal connected to the controller. The controller is signal connected to the mobile device.

3. The special lifting tool for steel beam hoisting as described in claim 2, characterized in that: The top of the second horizontal plate is provided with an elastic element, and a buffer plate is fixedly connected to the end of the elastic element away from the second horizontal plate. The buffer plate is made of rubber material, and the structure of the fourth horizontal plate is the same as that of the second horizontal plate.

4. The special lifting tool for steel beam hoisting as described in claim 3, characterized in that: Several support plates are symmetrically fixedly connected between the first plate and the third plate, and all the support plates are located above the anchor base.

5. The special lifting tool for steel beam hoisting as described in claim 4, characterized in that: The top of the fourth plate is fixedly connected to a collar, which is fitted onto the longitudinal beam. The top of the collar has several threaded holes for installation.

6. The special lifting tool for steel beam hoisting as described in claim 5, characterized in that: The top of the first plate has a scale strip.

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