A heavy H-beam hoisting device and method

Abstract

The present invention relates to the field of steel hoisting, and discloses a hoisting device and method for heavy H-shaped steel, comprising a steel section, which is connected with a clamping mechanism on all sides; a steel cable, which runs through the clamping mechanism and is connected with a construction mechanism at the other end, wherein the clamping mechanism comprises: a base plate, the top of which is rotatably connected with a rotating shaft; a clamping cover, the bottom of which is fixedly connected with a stabilizing sleeve fixedly sleeved with the rotating shaft, and the stabilizing sleeve is connected with a transmission unit located in the base plate; a force unit, which is fixedly connected to one side of the base plate, and one side of which is connected to the transmission unit; a first spring, one end of which is fixedly connected to the base plate, and the other end of which is fixedly connected with a pressure block slidably sleeved with the base plate. The present invention can greatly reduce the operations such as installation and disassembly during the hoisting process through clamping and fixing by the clamping mechanism, simplify multiple processes, reduce work intensity, avoid the possibility of loosening, and ensure the safety of hoisting.

Description

Technical Field

[0001] The invention relates to the field of steel hoisting, and in particular to a heavy H-shaped steel hoisting device and method. Background Art

[0002] Steel section is an economical and efficient profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". It has good mechanical properties and is widely used in steel materials. During the construction process, it is generally installed by hoisting. However, the existing hoisting generally directly uses steel cables to fix or clamp blocks with bolts to fix on the steel, and then hoist. After the hoisting is completed, the bolts or other devices are removed. The whole process is relatively complicated and increases the labor intensity. Summary of the invention

[0003] In order to solve the technical problem of complicated hoisting, the present invention provides a hoisting device and method for heavy H-beam.

[0004] A heavy H-beam hoisting device, comprising:

[0005] The steel section is connected with clamping mechanisms on all sides. The steel section is the material to be hoisted. According to its weight and force distribution, different numbers of clamping mechanisms are selected for clamping to ensure uniform force at each point.

[0006] The steel cable runs through the clamping mechanism, and the other end of the steel cable is connected to the construction mechanism. The steel cable is hung to connect the clamping mechanism and the construction mechanism to ensure the transportation of the steel section.

[0007] As a further improvement of the above solution, the clamping mechanism includes:

[0008] The bottom plate has a rotating shaft rotatably connected to its top, and the bottom plate provides necessary support. It contacts the steel section and cooperates with a clamping cover rotatably connected to the rotating shaft to connect and clamp the steel section.

[0009] The clamping cover has a stabilizing sleeve fixedly connected to the rotating shaft at its bottom, and the stabilizing sleeve is connected to a transmission unit located in the bottom plate. The stabilizing sleeve connects the clamping cover and the rotating shaft and cooperates with the transmission unit to perform necessary auxiliary work.

[0010] The force-bearing unit is fixedly connected to one side of the bottom plate, one side of which is connected to the transmission unit, and the force-bearing unit is connected to the steel cable to achieve the necessary connection.

[0011] The first spring has one end fixedly connected to the bottom plate, and the other end fixedly connected to a pressure block slidably sleeved with the bottom plate. The pressure block tends to move downward through the first spring, and is located in the bottom plate when not subject to force, thereby ensuring subsequent work.

[0012] The restraining blocks are arranged in groups of two and are fixedly connected to the clamping cover and the base plate respectively. A connector is connected between the two restraining blocks in a group. The two restraining blocks are connected by the connector to further ensure the stability of the relative position between the clamping cover and the base plate.

[0013] The tail pipe block is fixedly connected to the bottom plate and is provided with a tail pipe hole in the middle. The steel cable passes through the tail pipe holes in the two tail pipe blocks to form two directions, thereby achieving preliminary stability.

[0014] As a further improvement of the above solution, the transmission unit includes:

[0015] The middle cavity is arranged in the bottom plate, which is connected to the force-bearing unit and one side of which is connected to the first processing tube. Liquid is stored in the middle cavity for temporary storage of liquid when it flows in the entire area to ensure the stability of the amount of flowing liquid.

[0016] The middle tube is connected to the processing tube, and one side of the middle tube is connected to the clamping tube, and the other end of the clamping tube is connected to the clamping path located in the bottom plate, and one end of the clamping path is connected to the clamping groove located in the bottom plate. The middle tube performs diversion, and the liquid overflowing from the middle cavity enters through the processing tube, and then is diverted to the clamping tube, the pressurized tube and the extension tube as needed to achieve subsequent work.

[0017] The pushing block is slidably connected to the groove wall of the clamping groove and is fixedly connected to the stabilizing sleeve. When subjected to external force, the liquid enters the clamping tube and further enters the clamping groove through the clamping channel, thereby forcing the pushing block to move, further driving the stabilizing sleeve and the clamping cover to rotate, further increasing the clamping force and ensuring the stability of the clamping.

[0018] The clamping tube has one end fixedly connected to the middle tube, and the other end is connected to a pressurizing groove for accommodating the pressurizing block. The pressurizing groove is located in the bottom plate. Similarly, liquid enters the pressurizing groove through the clamping tube, forcing the pressurizing block to move and pressurize the bottom to ensure the stability of the clamping.

[0019] An extension tube is connected to the middle tube and the other end of the extension tube is connected to the connector.

[0020] As a further improvement of the above scheme, an adding chamber is further provided in the bottom plate, and the adding chamber is connected with two adding tubes connected with the middle chamber, and the two adding tubes are respectively connected with a one-way valve and a solenoid valve, and a weight block is provided on the top of the adding chamber, and the clamping cover is connected with an auxiliary arc, and a plurality of placement grooves are provided on the bottom plate, and the placement grooves are connected with a placement plate, and a wedge plate is connected under the clamping cover, and the same liquid is provided in the adding chamber, and when liquid leaks in the middle chamber or other situations occur, shaking occurs, and the liquid in the adding chamber enters the middle chamber through one of the adding tubes for addition, and the placement groove cooperates with the placement plate to perform local auxiliary limitation, so that after accidental loosening during the clamping process, it can still pass through the limitation of the placement plate, forcing it to not fall within a certain range, thereby ensuring overall safety, and the wedge plate is placed on one side of the clamping cover after clamping for pressurization to assist the work.

[0021] As a further improvement of the above solution, the force-bearing unit includes:

[0022] The arc ring is fixedly connected to the bottom plate, and a power cavity is arranged inside the arc ring. The arc ring performs necessary restrictions, and the power cavity is filled with liquid.

[0023] The pushing arc is arranged in the power chamber, one side of which is connected to a trigger, and the other end of the trigger is connected to a stabilizing ring. When the pushing arc moves to one side, the space of the power chamber is reduced, and the human body is discharged into the middle chamber through the overflow channel, and then distributed to other positions to work.

[0024] The buffer ring is fixedly sleeved in the stabilizing ring, and a guide ring is fixedly connected inside the buffer ring. The steel cable passes through the guide ring and then passes through the buffer ring for a certain buffering, so as to reduce excessive impact force when lifting or lowering.

[0025] An overflow channel has one end connected to the power chamber and the other end connected to the middle chamber.

[0026] As a further improvement of the above solution, the trigger includes:

[0027] The push block has one end fixedly connected to the stabilizing ring, and the other end is slidably sleeved with a guide sleeve fixedly connected to the arc ring. During the startup process, the steel cable is pulled upward, which drives the guide ring to move, and further moves the push block. Through the push of the second spring, the push arc moves to squeeze the liquid.

[0028] A second spring, one end of which is fixedly connected to the guide sleeve, one end of the two second springs located at the top is fixedly connected to the push arc, and the two second springs located at the bottom are fixedly connected to the arc ring;

[0029] The connector comprises:

[0030] An upper sliding ring is hooked on one of the tie-down blocks.

[0031] The lower sliding ring is hung on another restraining block. The top of the lower sliding ring is slidably connected to a working ring. Through a three-stage connection, necessary limitations are formed between the clamping cover and the base plate. At the same time, when the working ring moves to one side, the two are separated to achieve block breaking. During operation, the pressure block in the working ring moves, so that the upper sliding ring and the lower sliding ring tend to be relatively close to each other, forming a clamp, thereby stabilizing the connection between the clamping cover and the base plate.

[0032] The receiving tube has one end connected to the extension tube and the other end fixedly connected to the lower sliding ring. Liquid is supplied through the extension tube so as to enter the receiving tube for addition.

[0033] The lower guide pipe is arranged in the lower sliding circle, and a hose is connected to its top end, and the other end of the hose is connected to the upper guide pipe located in the working circle. The liquid pushes the push rod to move after passing through the lower guide pipe, the hose and the upper guide pipe.

[0034] The push rod is slidably sleeved in the working circle, and the bottom end of the push rod is fixedly connected with a pressure block slidably sleeved with the working circle. The movement of the push rod drives the movement of the pressure block, thereby achieving the stability of the relative position.

[0035] The contact groove is arranged at the bottom of the upper sliding ring and cooperates with the pressure block. A return sleeve fixedly connected to the upper sliding ring is arranged below the contact groove. The steel cable can be placed in the contact groove and stabilized under the clamping of the pressure block. At the same time, the steel cable passes through the return sleeve and cooperates with the tail pipe block to further ensure the clamping needs.

[0036] The limiting strip is fixedly connected with the lower sliding ring and is slidably sleeved with the working ring. The limiting strip ensures the relative position movement of the working ring.

[0037] As a further improvement of the above scheme, the construction mechanism includes a hook connected to the steel cable, and a balance plate is commonly connected to the multiple hooks. Multiple pull ropes are connected to the balance plate, and the other end of the pull rope is connected to a gantry crane. The gantry crane can lift heavier objects and cooperate with the pull ropes and the balance plate to ensure the stability of the lifting.

[0038] The hook includes a guide bar fixedly connected to the balance plate, a guide block is slidably sleeved in the guide bar, the steel cable is fixedly wrapped in the guide block, and the guide block and the guide bar are fixedly connected by bolts. The sliding connection and the fixing of the bolts can ensure stability during subsequent disassembly to meet work needs.

[0039] As a further improvement of the above scheme, the construction mechanism includes a winder connected to the steel cable, and the winder is connected to a crane. The crane has strong maneuverability, and the winder works to facilitate the passage of the steel cable.

[0040] The winder includes an outermost protective shell, contact blocks are slidably sleeved on both sides of the protective shell, and third springs are fixedly connected to both sides of the contact blocks. A winding roller is rotatably connected between the two symmetrically arranged contact blocks, and a through hole is arranged in the winding roller. Through grooves are arranged on the upper and lower sides of the winding roller. The top of the protective shell is fixedly connected to a hanging arc connected to a crane, and the bottom of the protective shell is fixedly connected to a plurality of through tubes. The steel cable passes through the through hole in the top winding roller, and then winds back into the through groove between the two winding rollers, and then passes through the through hole in the other winding roller, and so on, and finally passes through the through tube to connect. When subjected to force, due to the change in direction, increased friction will be generated, and at the same time, multiple winding rollers will be forced to approach each other, and the steel cable will be further squeezed through the through groove to ensure the stability of the steel cable.

[0041] A method for hoisting heavy H-shaped steel comprises the following steps:

[0042] S1: Select the steel section, drive the truck loaded with the steel section to the designated location, and then install the clamping mechanism;

[0043] S2: inserting the steel cable through the clamping mechanism and connecting the other end of the steel cable to the balance board;

[0044] S3: Use a gantry crane to lift to a designated location;

[0045] S4: Release the pressure, remove the clamping mechanism, return to the original position, and proceed with the lifting of the next steel section.

[0046] A method for hoisting heavy H-shaped steel comprises the following steps:

[0047] S1: Select the steel section, drive the truck loaded with the steel section to the designated position, and then install the clamping mechanism 2;

[0048] S2: inserting the steel cable on the clamping mechanism and connecting the other end of the steel cable to the winder;

[0049] S3: Place a level on the steel and a distance measuring instrument on the ground for measurement;

[0050] S4: Coordinate multiple cranes to perform lifting synchronously, keep the data of the level at the specified position, and use the distance meter to comprehensively determine the lifting speed and lifting angle, and perform real-time regulation;

[0051] S5: Slowly descend and place at the designated location;

[0052] S6: Release the pressure, remove the clamping mechanism, return to the original position, and proceed with the lifting of the next steel section.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] 1. Different devices can be used to adapt to different lifting needs. At the same time, the clamping and fixing of the clamping mechanism can greatly reduce the installation and disassembly operations during the lifting process, simplify multiple processes, and reduce work intensity.

[0055] 2. Through the interaction between the various devices in the clamping mechanism, the clamping can be more stable during hoisting. With the increase of weight, the clamping force increases, avoiding the possibility of loosening and ensuring the safety of hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a schematic front view of Embodiment 1 of the present invention;

[0057] Figure 2 for Figure 1 Place the picture at A in the middle;

[0058] Figure 3 It is a front view schematic diagram of embodiment 2 of the present invention;

[0059] Figure 4 It is a schematic cross-sectional front view of a hitch of Embodiment 2 of the present invention;

[0060] Figure 5 It is a left side cross-sectional schematic diagram of a hitch of Embodiment 2 of the present invention;

[0061] Figure 6 It is a top cross-sectional schematic diagram of the present invention;

[0062] Figure 7 It is a schematic diagram of the clamping mechanism structure;

[0063] Figure 8 It is a schematic diagram of the front cross-sectional view of the clamping mechanism;

[0064] Fig. 9 It is a schematic diagram of the main cross-section of the force-bearing unit of the clamping mechanism;

[0065] Fig.10 for Figure 8 The enlarged structural diagram at B in the middle;

[0066] Fig.11 It is a left side schematic diagram of the clamping mechanism;

[0067] Fig.12 It is a top view schematic diagram of the clamping mechanism;

[0068] Fig.13is a schematic cross-sectional view of the hitch;

[0069] Fig.14 It is a partial front cross-sectional schematic diagram of the hitch;

[0070] Fig.15 for Fig.13 Schematic diagram of the enlarged structure at point C in the middle.

[0071] Description of main symbols:

[0072] 1. Steel; 2. Clamping mechanism; 3. Steel cable; 4. Pull rope; 5. Gantry crane; 6. Balance plate; 7. Guide strip; 8. Guide block; 10. Winder; 11. Crane; 12. Protective shell; 13. Through slot; 14. Winding roller; 15. Through hole; 16. Hanging arc; 17. Through pipe; 18. Third spring; 19. Contact block; 20. Bottom plate; 21. Tail pipe block; 22. Restraining block; 23. Arc ring; 24. Placement groove; 25. Auxiliary arc; 26. Clamping cover; 27. Placement plate; 28. Pressure block; 29. ​​Wedge plate; 30. Power chamber; 31. Buffer ring; 32. Push arc; 33. Stabilizing ring; 3 4. Processing tube; 35. Extension tube; 36. Intermediate tube; 37. First spring; 38. Guide ring; 39. Pressurized tube; 40. Intermediate cavity; 41. Clamping tube; 42. Connector; 43. Adding cavity; 45. Second spring; 46. Overflow channel; 47. Push block; 48. Guide sleeve; 49. Stabilizing sleeve; 50. Rotating shaft; 51. Clamping channel; 52. Push block; 53. Clamping groove; 60. Upper sliding ring; 62. Lower sliding ring; 63. Receiving tube; 64. Return sleeve; 65. Working ring; 66. Upper guide tube; 67. Push rod; 68. Pressurized block; 69. Hose; 70. Lower guide tube; 71. Limiting strip. DETAILED DESCRIPTION

[0073] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0074] Embodiment 1:

[0075] Please combine Figure 1 , 2 6-15, the implementation principle of a heavy H-beam hoisting device and method in the embodiment of the present application is:

[0076] Select a gantry crane 5 of appropriate type, lower the pull rope 4 and the balance plate 6 to the specified position, and then place the steel section 1 in the specified position. According to the force requirements, select a certain number of clamping mechanisms 2, then clamp the clamping mechanisms 2 to the four sides of the steel section 1, and then use the connector 42 to preliminarily connect and fix the clamping cover 26 and the base plate 20. After completion, pass one end of the steel cable 3 through the clamping mechanism 2 and wrap it around to form a fixation, and then install the other end of the steel cable 3 into the guide block 8, and then install the guide block 8 into the guide bar 7 to connect with the balance plate 6. At this time, start the gantry crane 5 for lifting. After the lifting is completed, release the steel cable 3 to relax it in the stretched state, so that the clamping mechanism 2 is depressurized, and then take out the clamping mechanism 2 from the steel section 1 to lift the next steel section 1.

[0077] During the installation process, the steel cable 3 first passes through the guide ring 38 in the clamping mechanism 2, then passes through a tail pipe block 21 on one side, and then is wound around the auxiliary arc 25, passes through another auxiliary arc 25 and is wound around the tail pipe block 21 at the bottom of the other side, and then turns and is wound around the tail pipe block 21 on the upper side thereof, and after being wound around the vertical steel cable 3 for several turns, it passes through the bottom of the bottom plate 20 and is wound around the tail pipe block 21 on the other side, and finally is wound around the steel cable 3 for several turns, and then is wound around the hose 69 in the connector 42, and finally passes through the return sleeve 64 to complete the installation.

[0078] During the hoisting process, the guide ring 38 moves due to the pulling force from above, and the vibration is reduced by the buffer ring 31. At the same time, the push block 47 and the second spring 45 are forced to move, further forcing the push arc 32 to move, squeezing the space in the power chamber 30, causing the liquid therein to overflow, enter the middle chamber 40 through the overflow channel 46, and then pass through the 3 processing tubes 4 and the diversion, and enter the clamping tube 41, the clamping tube 39 and the extension tube 35 respectively. The liquid entering the clamping tube 41 passes through the clamping channel 51 and then enters the clamping groove 53, forcing the push block 52 to move or have a tendency to move, thereby driving the stabilizing sleeve 49 and the clamping cover 26 to act, thereby achieving the stability of the holding force. , the liquid that also enters the clamping cover 39 forces the pressure block 28 to move and clamp the bottom. The cooperation between the two can achieve more stable clamping. At the same time, the heavier the object, the greater the movement trend of the pushing arc 32, and thus the greater the clamping force of the two, and the change of adaptive weight. The liquid passes through the extension tube 35 and then passes through the receiving tube 63, and then enters the lower guide tube 70, and further pushes through the hose 69 and the upper guide tube 66, forcing the pressure block 68 to move. Under the limitation of the pressure block 68, the steel cable 3 is clamped, and at the same time, a certain force is formed between the working circle 65 and the upper sliding circle 60, which further makes the clamping between the upper clamping cover 26 and the bottom plate 20 more stable.

[0079] After use, the steel cable 3 is relaxed, and the hydraulic pressure returns to the initial state through the action of the spring and the atmospheric pressure. At this time, the clamping cover 26 is rotated for disassembly. After all the lifting work is completed, the steel cable 3 is untied for later storage.

[0080] Embodiment 2:

[0081] Combination Figure 3-15 , based on the embodiment 1, the present embodiment is further improved in that: a crane 11 of an appropriate type is selected, and the steel section 1 is placed at a designated position at the same time. According to the force requirements, a certain number of clamping mechanisms 2 and cranes 11 are selected. At this time, the clamping mechanism 2 is clamped to the four sides of the steel section 1, and then the clamping cover 26 and the bottom plate 20 are preliminarily connected and fixed by using the connector 42. After completion, one end of the steel cable 3 is passed through and wound in the clamping mechanism 2 to form a fixation, and then the other end of the steel cable 3 is installed in the winder 10, and then the winder 10 is hung on the hook of the crane 11 to achieve connection. At this time, the crane 11 is started for hoisting. After the hoisting is completed, the steel cable 3 is released to relax in a stretched state, so that the clamping mechanism 2 is depressurized, and then the clamping mechanism 2 is taken out from the steel section 1 to carry out the hoisting of the next steel section 1. After completion, the steel cable 3 is removed and each device is stored;

[0082] When the steel cable 3 passes through the winder 10, the steel cable 3 is first passed through the through hole 15 in the top winding roller 14, then wound back into the through groove 13 between the two winding rollers 14, and then passed through the through hole 15 in the other winding roller 14, and so on, and finally passed through the through tube 17 to be connected. When subjected to force, due to the change in direction, increased friction will be generated, and at the same time, multiple winding rollers 14 will be forced to approach each other, further squeezing the steel cable 3 through the through groove.

[0083] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A heavy H-beam lifting device, characterized in that: include: The steel section is connected with clamping mechanisms on all sides; A steel cable, which passes through the clamping mechanism and has the other end connected to the construction mechanism; The clamping mechanism comprises: A bottom plate, the top of which is rotatably connected to a rotating shaft; A clamping cover, the bottom of which is fixedly connected to a stabilizing sleeve fixedly sleeved with the rotating shaft, and the stabilizing sleeve is connected to a transmission unit located in the bottom plate; A force-bearing unit, which is fixedly connected to one side of the base plate, and one side of which is connected to the transmission unit; A first spring, one end of which is fixedly connected to the bottom plate, and the other end of which is fixedly connected to a pressure block that is slidably sleeved with the bottom plate; The restraining blocks are grouped in two and fixedly connected to the clamping cover and the bottom plate respectively, and a connector is connected between the two restraining blocks in one group; A tail pipe block, which is fixedly connected to the bottom plate and has a tail pipe hole in the middle; The transmission unit comprises: The middle cavity is arranged in the bottom plate, is connected with the force-bearing unit, and one side of the middle cavity is connected with the first processing tube; An intermediate tube connected to the processing tube, one side of which is connected to a clamping tube, the other end of which is connected to a clamping path in the bottom plate, and one end of which is connected to a clamping groove in the bottom plate; A pushing block is slidably sleeved with the groove wall of the clamping groove and fixedly connected with the stabilizing sleeve; A pressure pipe, one end of which is fixedly connected to the middle pipe, and the other end of which is connected to a pressure groove for accommodating a pressure block, wherein the pressure groove is located in the bottom plate; An extension tube connected to the middle tube and having the other end connected to the connector; The construction mechanism includes a hook connected to a steel cable, a plurality of hooks are commonly connected to a balance board, a plurality of pull ropes are connected to the balance board, and the other end of the pull rope is connected to a gantry crane; The hook includes a guide bar fixedly connected to the balance plate, a guide block is slidably sleeved in the guide bar, the steel cable is fixedly wound around the guide block, and the guide block and the guide bar are fixedly connected by bolts; The construction mechanism includes a winding device connected to the steel cable, and a crane is connected to the winding device; The wire winder includes an outermost protective shell, contact blocks are slidably mounted on both sides of the protective shell, third springs are fixedly connected to both sides of the contact blocks, a winding roller is rotatably connected between the two symmetrically arranged contact blocks, a through hole is arranged in the winding roller, through grooves are arranged on the upper and lower sides of the winding roller, the top of the protective shell is fixedly connected to a hanging arc connected to a crane, and a plurality of through tubes are fixedly connected to the bottom of the protective shell.

2. A heavy H-beam hoisting device as claimed in claim 1, characterized in that: An adding chamber is also provided in the bottom plate, and the adding chamber is connected to two adding pipes connected to the middle chamber, and a one-way valve and a solenoid valve are respectively connected to the two adding pipes. A weight block is provided on the top of the adding chamber, and an auxiliary arc is connected to the clamping cover. A plurality of placement grooves are provided on the bottom plate, and a placement plate is connected in the placement grooves, and a wedge plate is connected under the clamping cover.

3. A heavy H-beam hoisting device as claimed in claim 2, characterized in that: The force bearing unit comprises: An arc-shaped ring, which is fixedly connected to the bottom plate and has a power cavity disposed therein; A push arc is provided in the power chamber, one side of which is connected to a trigger, and the other end of the trigger is connected to a stabilizing ring; The buffer ring is fixedly sleeved in the stabilizing ring, and a guide ring is fixedly connected inside the buffer ring; An overflow channel has one end connected to the power chamber and the other end connected to the middle chamber.

4. A heavy H-beam hoisting device as claimed in claim 3, characterized in that: The triggers include: A push block, one end of which is fixedly connected to the stabilizing ring, and the other end of which is slidably sleeved with a guide sleeve fixedly connected to the arc ring; A second spring, one end of which is fixedly connected to the guide sleeve, one end of the two second springs located at the top is fixedly connected to the push arc, and the two second springs located at the bottom are fixedly connected to the arc ring; The connector comprises: An upper sliding ring, the upper sliding ring being hooked on one of the tie blocks; A lower sliding ring, the lower sliding ring is hung on another restraining block, and the top of the lower sliding ring is slidably connected with a working ring; A receiving tube, one end of which is connected to the extension tube, and the other end of which is fixedly connected to the lower sliding ring; A lower guide pipe is arranged in the lower sliding circle, and a hose is connected to the top end thereof, and the other end of the hose is connected to the upper guide pipe located in the working circle; A push rod, the sliding sleeve of which is arranged in the working circle, and the bottom end of which is fixedly connected with a pressure block which is slidably sleeved with the working circle; A contact groove is arranged at the bottom of the upper sliding ring and cooperates with the pressure block, and a return sleeve fixedly connected to the upper sliding ring is arranged below the contact groove; The limiting strip is fixedly connected with the lower sliding ring and is slidably sleeved with the working ring.

5. A method for hoisting a heavy H-beam using the hoisting device of claim 4, characterized in that: The following steps are involved: S1: Select the steel section, drive the truck loaded with the steel section to the designated location, and then install the clamping mechanism; S2: inserting the steel cable through the clamping mechanism and connecting the other end of the steel cable to the balance board; S3: Use a gantry crane to lift to a designated location; S4: Release the pressure, remove the clamping mechanism, return to the original position, and proceed with the lifting of the next steel section.

6. A method for hoisting a heavy H-beam using the hoisting device of claim 4, characterized in that: The following steps are involved: S1: Select the steel section, drive the truck loaded with the steel section to the designated location, and then install the clamping mechanism; S2: inserting the steel cable on the clamping mechanism and connecting the other end of the steel cable to the winder; S3: Place a level on the steel and a distance measuring instrument on the ground for measurement; S4: Coordinate multiple cranes to perform lifting synchronously, keep the data of the level at the specified position, and use the distance meter to comprehensively determine the lifting speed and lifting angle, and perform real-time regulation; S5: Slowly descend and place at the designated location; S6: Release the pressure, remove the clamping mechanism, return to the original position, and proceed with the lifting of the next steel section.

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