Floor support plate hoisting structure

Abstract

The utility model discloses a floor support plate hoisting structure, and relates to the technical field of hoisting. The device comprises a base, a hoisting plate, a vacuum machine, an air suction disc and a fixing plate, wherein a plurality of mounting plates are mounted on the two sides of the base. During use, a lifting plate is lifted through a motor, a rotating rod, a winding roller, a steel wire rope and a positioning wheel, when the lifting plate is lifted, the lifting plate enables a lead screw to be connected with a movable column through an extrusion block, an induction button and an electric push rod, at the moment, the rotating rod rotates to enable the lead screw to rotate, and the lead screw rotates to enable a threaded block to move; the threaded block moves to enable the hoisting plate to move through an inclined block, a fixing rod and a positioning ring, and then the hoisting plate moves to any position over the base, so that a worker can take the floor support plate without stretching out of the outer part of the edge of the building, and meanwhile, through arrangement of an induction button and an electric push rod, the lifting plate can be conveniently taken. And a worker only needs to start and stop the motor, so that the hoisting plate can be located at any position above the base.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting technical field, concretely relates to a floor support plate hoisting structure. BACKGROUND

[0002] The steel plate that supports the concrete of floor is called the compression molding steel plate, also called floor support plate, steel support plate. The product is widely used in power plant, electric power equipment company, automobile exhibition hall, steel structure factory building, cement warehouse, steel structure office, airport terminal, railway station, stadium, concert hall, grand theatre, large supermarket, logistics center, stadium and other steel structure buildings, and in construction, generally hoisting structure is used to hoist it to the upper side.

[0003] The existing patent with the publication number CN220906922U discloses a steel bar truss floor support plate hoisting device, which sucks the floor support plate through the vacuum machine, air suction pipe and air suction disc, does not need to manually bind the floor support plate with rope first, and then extrudes and limits the bottom of both sides of the floor support plate through the motor, winding frame and fixed plate to avoid the floor support plate from falling, but in actual use, the hoisting position is generally outside the floor, and when hoisting to the appropriate height for taking, the worker needs to reach out of the edge of the floor to pull the hoisting plate for taking, and the worker is easy to fall due to excessive force or carelessness when pulling, which affects the life safety of the worker and is inconvenient to use. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model provides a floor support plate hoisting structure to solve the problem that the worker needs to reach out of the edge of the floor to pull the hoisting plate for taking.

[0005] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme: a floor support plate hoisting structure, including base, hoisting plate, vacuum machine, air suction disc and fixed plate, both sides of the base are installed with a plurality of mounting plates, the top of the base is provided with two steel wires, and the other end of two steel wires is installed on the top of the hoisting plate, and the base is provided with the winding movement mechanism that is matched with the steel wire on the top.

[0006] The winding moving mechanism comprises two fixed blocks mounted on the top of the base, one side of one of the fixed blocks is provided with a motor, two sides of the two fixed blocks are jointly provided with a rotatingly mounted rotating rod, one end of the rotating rod is mounted on the output shaft of the motor, two winding rollers are arranged on the rotating rod, the other ends of the two steel wires are respectively mounted on the two winding rollers, two recesses are formed in the top of the base, the opposite inner walls of the two recesses are jointly provided with a rotatingly mounted screw rod, a threaded block is threadedly connected to the screw rod, the top of the threaded block is provided with an inclined block, the sides of the two inclined blocks are jointly provided with a fixed rod, a directional wheel matched with the steel wire is rotatably arranged on the fixed rod, and an inductive transmission assembly is arranged on the base to rotate the screw rod.

[0007] Preferably, the inductive transmission assembly comprises a fixed cavity formed in the two fixed blocks, two first bevel gears are arranged on the rotating rod, two transmission cavities are formed in the base, a transmission hole is formed in the bottom inner wall of the fixed cavity and the top inner wall of the transmission cavity, a transmission rod is jointly and rotatably arranged on every two matched transmission holes, a second bevel gear is arranged on the top end and the bottom end of the transmission rod, a supporting plate is arranged on the bottom inner wall of the transmission cavity, a movable hole is formed in the side of the supporting plate, a movable column is arranged in the movable hole, a third bevel gear is arranged on one end of the movable column, the first bevel gears and the third bevel gears are respectively engaged with the second bevel gears, one end of the screw rod extends into the transmission cavity and is provided with a rectangular groove, a rectangular column is slidably arranged in the rectangular groove, a movable slot is formed in the side of the rectangular column, a rectangular rod is slidably arranged in the movable slot, an elastic unit is arranged on the side of the rectangular rod, a moving slot matched with the rectangular rod is formed in the other end of the movable column, and an inductive driving unit is arranged in the transmission cavity to move the rectangular column.

[0008] Preferably, the elastic unit comprises an extrusion spring mounted on the side of the rectangular rod, and the other end of the extrusion spring is mounted on the inner wall of the side of the movable slot.

[0009] Preferably, the diameter of the first bevel gear is greater than the diameter of the third bevel gear.

[0010] Preferably, the induction driving unit comprises two electric push rods mounted on the inner wall of the side of the transmission cavity, the output end of each of the two electric push rods is provided with a moving plate, the side of the two moving plates is jointly rotatably provided with a bearing, the two bearings are respectively sleeved on the two rectangular columns, the side of the base is provided with four supporting blocks, the opposite sides of each two supporting blocks are jointly rotatably provided with a movable rod, the movable rod is sleeved with a pressing plate, the side of the base is provided with four induction buttons, and each of the four supporting blocks is provided with an element matched with the movable rod.

[0011] Preferably, the elastic element comprises a through cavity formed in the supporting block, and a torsional spring is arranged on the movable rod and mounted on the inner wall of the side of the through cavity.

[0012] Preferably, two buffer grooves are formed in the top of the base, a damping telescopic rod is mounted on the bottom inner wall of each of the two buffer grooves, a top plate is jointly mounted on the end of the two damping telescopic rods, two buffer springs are mounted on the bottom of the top plate, and the other ends of the two buffer springs are respectively mounted on the bottom inner walls of the two grooves.

[0013] The utility model discloses the beneficial effects are as follows:

[0014] The utility model discloses a motor can make the rotation of the rotating lever, and the rotating lever rotation will make the hoisting plate move through the winding roller, the steel wire rope and the positioning wheel, when the hoisting plate is in the oblique upper side of base, the hoisting plate makes the electric push rod output through the extruding block and the induction button, and the electric push rod output will make the rectangular column and the rectangular rod move, and then make the screw rod and the movable column connect, when the rotating lever rotation will make the movable column fast rotation through the first bevel gear, the transmission rod, the second bevel gear and the third bevel gear, when the screw rod also will rotate, and the screw rod rotation will make the threaded block move, and the threaded block movement will make the hoisting plate move through the inclined block, the fixed rod and the positioning ring, and then make the hoisting plate move to the arbitrary position of the top of base, so as to not need the staff to explore the building edge outside to take the floor support plate, and through the setting of induction button and electric push rod, makes the staff only need to start and stop the motor to make the hoisting plate be in the upper side of base arbitrary position.

[0015] The utility model discloses the beneficial effects are as follows: ACCURATE DRAWINGS

[0016] Figure 1It is the first perspective structure schematic diagram of the utility model;

[0017] Figure 2 It is the base partial cut structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 The enlarged structure schematic diagram of A place in the middle;

[0019] Figure 4 It is the enlarged front structure schematic diagram of the utility rectangular column and movable column partial cut

[0020] Figure 5 It is the utility support block partial cut three-dimensional structure schematic diagram

[0021] Figure 6 It is the base partial cut front structure schematic diagram of the utility.

[0022] Fig. 1, base;2, fixed block;3, motor;4, rotating rod;5, steel wire rope;6, hoisting plate;7, screw;8, threaded block;9, inclined block;10, first bevel gear;11, transmission rod;12, second bevel gear;13, movable column;14, third bevel gear;15, electric push rod;16, bearing;17, rectangular column;18, rectangular rod;19, extrusion spring;20, movable rod;21, torsion spring;22, extrusion plate;23, induction button;24, damping telescopic rod;25, buffer spring;26, top plate;27, support block 27. DETAILED DESCRIPTION

[0023] The utility model will be further explained below in conjunction with specific embodiment, however, people skilled in the art should understand, the detailed description given here in conjunction with the drawings is to explain better, the structure of the utility model is bound to exceed these limited embodiments, and for some equivalent replacement scheme or common means, this paper will not make detailed description, but still belong to the protection scope of the present application.

[0024] Figures 1-6 It is the best embodiment of the utility model, and the following will be further explained in conjunction with the drawings Figures 1-6 The utility model will be further explained.

[0025] A floor support plate hoisting structure, including base 1, hoisting plate 6, vacuum machine, air suction disc and fixed plate, both sides of base 1 are equipped with multiple mounting plates, and the top of base 1 is provided with two steel wire ropes 5, and the other end of two steel wire ropes 5 is installed on the top of hoisting plate 6, and the base 1 is provided with the winding movement mechanism matched with the steel wire rope 5;

[0026] The winding moving mechanism comprises two fixed blocks 2 mounted on the top of the base 1, one side of one of the fixed blocks 2 is provided with a motor 3, the sides of the two fixed blocks 2 are jointly provided with a rotating shaft 4, one end of the rotating shaft 4 is mounted on the output shaft of the motor 3, two winding rollers are arranged on the rotating shaft 4, the other ends of two steel wires 5 are respectively mounted on the two winding rollers, two recesses are formed on the top of the base 1, the opposite inner walls of the two recesses are jointly provided with a screw rod 7, the screw rod 7 is provided with a threaded block 8, the top of the threaded block 8 is provided with an inclined block 9, the sides of the two inclined blocks 9 are jointly provided with a fixed rod, the fixed rod is rotatably provided with a directional wheel matched with the steel wire 5, the base 1 is provided with an induction transmission assembly for driving the screw rod 7 to rotate, and the induction transmission assembly is cooperatively mounted with the rotating shaft 4.

[0027] In the scheme, the fixed block 2, the motor 3, the rotating shaft 4, the winding roller, the steel wire 5, the screw rod 7, the threaded block 8, the inclined block 9, the fixed rod and the directional wheel are arranged, so that the lifting plate 6 is above the base 1.

[0028] Specifically, the output of the motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the steel wire 5 to be wound by the winding roller, at this time, the lifting plate 6 rises with the winding of the steel wire 5, when the lifting plate 6 moves to a certain height, the rotating shaft 4 drives the screw rod 7 to rotate through the induction transmission assembly, the screw rod 7 moves the threaded block 8, the threaded block 8 moves the inclined block 9 and the fixed rod to drive the directional wheel to move, and then the lifting plate 6 moves, so that the lifting plate 6 is above the base 1.

[0029] The induction transmission assembly comprises a fixed cavity formed in the two fixed blocks 2, the rotating shaft 4 is provided with two first bevel gears 10, the base 1 is provided with two transmission cavities, the bottom inner walls of the two fixed cavities and the top inner walls of the two transmission cavities are provided with transmission holes, every two matched transmission holes are jointly provided with a transmission rod 11, the top ends and the bottom ends of the two transmission rods 11 are provided with second bevel gears 12, the bottom inner walls of the two transmission cavities are provided with support plates, the sides of the two support plates are provided with movable holes, the two movable holes are provided with movable columns 13, one end of the two movable columns 13 is provided with a third bevel gear 14, the two first bevel gears 10 and the two third bevel gears 14 are respectively engaged with the four second bevel gears 12, one end of the two screw rods 7 respectively extends into the two transmission cavities and is provided with a rectangular groove, the two rectangular grooves are respectively provided with a rectangular column 17, the sides of the two rectangular columns 17 are provided with movable grooves, the movable grooves are provided with a rectangular rod 18, the side of the rectangular rod 18 is provided with an elastic unit, the other end of the two movable columns 13 is respectively provided with a moving groove matched with the rectangular rod 18, and the two transmission cavities are respectively provided with an induction driving unit for driving the two rectangular columns 17 to move.

[0030] The first bevel gear 10, the transmission rod 11, the second bevel gear 12, the movable column 13, the third bevel gear 14, the rectangular column 17 and the rectangular rod 18 are arranged, so that the rotating rod 4 selectively drives the screw rod 7 to rotate.

[0031] Specifically, in use, the rotating rod 4 rotates to drive the first bevel gear 10 to rotate, the first bevel gear 10 rotates to drive one of the second bevel gears 12 to rotate, the second bevel gear 12 rotates to drive the transmission rod 11 to rotate, the transmission rod 11 rotates to drive the other second bevel gear 12 to rotate, the second bevel gear 12 rotates to drive the third bevel gear 14 to rotate, the third bevel gear 14 rotates to drive the movable column 13 to rotate, when the rectangular rod 18 is in the moving groove, the movable column 13 rotates to drive the rectangular rod 18 to rotate, the rectangular rod 18 rotates to drive the rectangular column 17 to rotate, and the rectangular column 17 rotates to drive the screw rod 7 to rotate, so that the screw rod 7 selectively rotates.

[0032] The elastic unit comprises a compression spring 19 arranged on the side of the rectangular rod 18, and the other end of the compression spring 19 is arranged on the side inner wall of the movable groove.

[0033] In the scheme, the compression spring 19 is arranged, so that the rectangular rod 18 is retracted and reset.

[0034] Specifically, when the rectangular rod 18 contacts the movable column 13 without corresponding to the moving groove, the rectangular rod 18 is limited and cannot move, at this time, the compression spring 19 is deformed, and when the rectangular rod 18 is aligned with the moving groove, the rectangular rod 18 enters the moving groove under the action of the compression spring 19.

[0035] The diameter of the first bevel gear 10 is greater than the diameter of the third bevel gear 14.

[0036] In the scheme, the diameter ratio of the first bevel gear 10 and the third bevel gear 14 is arranged, so that the distance moved by the threaded block 8 is relatively large.

[0037] Specifically, in use, the first bevel gear 10 rotates to drive the second bevel gear 12 to rotate the third bevel gear 14 quickly, the third bevel gear 14 rotates quickly to drive the screw rod 7 to rotate too many times, so that the distance moved by the threaded block 8 is relatively large.

[0038] The induction driving unit comprises two electric push rods 15 installed on the inner wall of the side of the transmission cavity, the output ends of the two electric push rods 15 are both installed with a moving plate, the side portions of the two moving plates are jointly installed with a bearing 16, the two bearings 16 are respectively sleeved on two rectangular columns 17, the side portions of the base 1 are installed with four supporting blocks 27, the opposite side portions of every two supporting blocks 27 are jointly installed with a movable rod 20, the movable rod 20 is sleeved with a pressing plate 22, the side portions of the base 1 are installed with four induction buttons 23, and every two supporting blocks 27 are both provided with an element matched with the movable rod 20.

[0039] In the scheme, the electric push rod 15, the moving plate, the bearing 16, the movable rod 20, the pressing plate 22 and the induction button 23 are arranged, so that the rectangular column 17 can be moved.

[0040] Specifically, the lifting plate 6 rises and falls to press the pressing plate 22, the pressing plate 22 is forced to avoid under the action of the movable rod 20, and then the induction button 23 is pressed, the induction button 23 is pressed to make the electric push rod 15 output or retract, the electric push rod 15 outputs or retracts to make the moving plate move, the moving plate moves to make the bearing 16 move, so that the rectangular column 17 moves, and through the arrangement of the induction button 23 and the electric push rod 15, the worker only needs to start and stop the motor 3 to make the lifting plate 6 be at any position above the base 1, without starting and stopping multiple output parts, so as to avoid causing errors and affecting the movement of the lifting plate 6.

[0041] The elastic element comprises a through cavity formed in the supporting block 27, and the movable rod 20 is provided with a torsion spring 21, and the other end of the torsion spring 21 is installed on the inner wall of the side portion of the through cavity.

[0042] In the scheme, the torsion spring 21 is arranged, so that the pressing plate 22 can be reset.

[0043] Specifically, when the lifting plate 6 does not press the pressing plate 22, the pressing plate 22 is reset under the action of the movable rod 20 and the torsion spring 21, so as to facilitate the next use.

[0044] The top of the base 1 is provided with two buffer grooves, the bottom inner walls of the two buffer grooves are both installed with a damping telescopic rod 24, the end portions of the two damping telescopic rods 24 are jointly installed with a top plate 26, the bottom of the top plate 26 is installed with two buffer springs 25, and the other ends of the two buffer springs 25 are respectively installed on the bottom inner walls of the two grooves.

[0045] In the scheme, the damping telescopic rod 24, the top plate 26 and the buffer spring 25 are arranged, which has a certain buffering effect.

[0046] Specifically, when the floor support plate is dropped due to carelessness during unloading, the floor support plate will first contact the top plate 26, at which time the damping telescopic rod 24 and the buffer spring 25 will give the top plate 26 a buffer force, thereby playing a certain buffering effect, so that the impact force of the drop is too large and the floor support plate is damaged.

[0047] In summary: when the utility model is in use, first, the base 1 is installed at a high place through the mounting plate, then the floor support plate is adsorbed and fixed through the vacuum machine and the air suction disc, and then the motor 3 is started, the output of the motor 3 will make the rotating rod 4 rotate, the rotating rod 4 will be wound on the steel wire rope 5 through the winding roller, the winding of the steel wire rope 5 will make the lifting plate 6 move upwards, the upward movement of the lifting plate 6 will make the floor support plate rise, when rising for a period of time, the floor support plate is then fixed by the fixing plate, and then the rotating rod 4 is continuously rotated to make it rise, and the rotation of the rotating rod 4 will make the first bevel gear 10 rotate, the rotation of the first bevel gear 10 will make one of the second bevel gears 12 rotate, the rotation of the second bevel gear 12 will make the transmission rod 11 rotate, the rotation of the transmission rod 11 will make the other second bevel gear 12 rotate, the rotation of the second bevel gear 12 will make the third bevel gear 14 rotate, and the rotation of the third bevel gear 14 will make the movable column 13 rotate, and then the lifting plate 6 continues to move upwards, when the lifting plate 6 contacts the extrusion plate 22, the upward movement of the lifting plate 6 will extrude the extrusion plate 22, the stress of the extrusion plate 22 will make the movable rod 20 rotate, thereby extruding the upper induction button 23, at which time the electric push rod 15 is started, the start of the electric push rod 15 will make the moving plate move, the movement of the moving plate will make the bearing 16 move, the movement of the bearing 16 will make the rectangular column 17 move, the movement of the rectangular column 17 will make the rectangular rod 18 move, when the rectangular rod 18 contacts the movable column 13 without corresponding to the moving groove, the rectangular rod 18 will be limited and cannot move, at which time the extrusion spring 19 is deformed, when the rectangular rod 18 is aligned with the moving groove, the rectangular rod 18 will enter the moving groove under the action of the extrusion spring 19, at which time the rotation of the movable column 13 will make the rectangular rod 18 rotate, the rotation of the rectangular rod 18 will make the rectangular column 17 rotate, the rotation of the rectangular column 17 will make the lead screw 7 rotate, the rotation of the lead screw 7 will make the threaded block 8 move, the movement of the threaded block 8 will make the inclined block 9 move, thereby making the lifting plate 6 move to the top of the base 1, so that the lifting plate 6 can be at any position above the base 1 by starting and stopping the motor 3, and the floor support plate can be taken without exploring outside the building edge, which is convenient to use.

[0048] When the hoisting plate 6 is not in contact with the extrusion plate 22, the extrusion plate 22 is reset under the action of the movable rod 20 and the torsional spring 21, when the loading and unloading is completed, the steel wire rope 5 is unwound by the motor 3, at this time the lead screw 7 rotates reversely, when the hoisting plate 6 is not vertically corresponding to the base 1, the motor 3 continues to output, which makes the hoisting plate 6 move downward, at the same time the threaded block 8 continues to move, when the hoisting plate 6 is in contact with the extrusion plate 22, the hoisting plate 6 continues to move downward and extrudes the extrusion plate 22, which makes the extrusion plate 22 contact with the induction button 23 below, thereby making the electric push rod 15 retract, the retraction of the electric push rod 15 makes the rectangular rod 18 move out of the moving groove, thereby making the lead screw 7 stop rotating, so that the threaded block 8 stops moving, at this time the motor 3 continues to output, which makes the hoisting plate 6 continue to descend for hoisting.

[0049] When the floor slab is dropped by accident during unloading, the floor slab will first contact the top plate 26, at this time the damping telescopic rod 24 and the buffer spring 25 will give the top plate 26 a buffer force, thereby playing a certain buffering effect, so that the impact force is too large to cause damage to the floor slab.

[0050] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical content of the present application, and according to the technical essence of the present application, still belong to the protection scope of the present application.

Claims

1. A floor support plate hoisting structure comprising a base (1), a hoisting plate (6), a vacuum machine, a suction disc and a fixing plate, characterized in that, Both sides of the base (1) are provided with a plurality of mounting plates, the top of the base (1) is provided with two steel wires (5), the other end of the two steel wires (5) is mounted on the top of the lifting plate (6), the base (1) is provided with a winding moving mechanism matched with the steel wire (5). The winding moving mechanism comprises two fixed blocks (2) mounted on the top of the base (1), one side of one of the fixed blocks (2) is provided with a motor (3), both sides of the two fixed blocks (2) are rotatably provided with a rotating rod (4), one end of the rotating rod (4) is mounted on the output shaft of the motor (3), the rotating rod (4) is provided with two winding rollers, the other end of the two steel wires (5) is respectively mounted on the two winding rollers, the top of the base (1) is provided with two grooves, the opposite inner walls of the two grooves are rotatably provided with a screw rod (7), the screw rod (7) is threadedly sleeved with a threaded block (8), the top of the threaded block (8) is provided with an inclined block (9), the side of the two inclined blocks (9) is commonly provided with a fixed rod, the fixed rod is rotatably sleeved with a directional wheel matched with the steel wire (5), the base (1) is provided with an induction transmission assembly for rotating the two screw rods (7), and the induction transmission assembly is cooperatively mounted with the rotating rod (4).

2. The floor deck hoisting structure according to claim 1, wherein, The induction transmission assembly comprises a fixed cavity formed in the two fixed blocks (2), the rotating rod (4) is sleeved with two first bevel gears (10), the base (1) is provided with two transmission cavities, the bottom inner wall of the two fixed cavities and the top inner wall of the two transmission cavities are provided with transmission holes, every two matched transmission holes are commonly rotatably provided with a transmission rod (11), the top end and the bottom end of the two transmission rods (11) are provided with a second bevel gear (12), the bottom inner wall of the two transmission cavities is provided with a support plate, the side of the two support plates is provided with a movable hole, the two movable holes are provided with a movable column (13), one end of the two movable columns (13) is provided with a third bevel gear (14), the two first bevel gears (10) and the two third bevel gears (14) are respectively engaged with four second bevel gears (12), one end of the two screw rods (7) respectively extends into the two transmission cavities and is provided with a rectangular groove, the two rectangular grooves are slidably provided with a rectangular column (17), the side of the two rectangular columns (17) is provided with a movable slot, the movable slot is slidably provided with a rectangular rod (18), the side of the rectangular rod (18) is provided with an elastic unit, the other end of the two movable columns (13) is respectively provided with a moving slot matched with the rectangular rod (18), the two transmission cavities are provided with an induction driving unit for moving the two rectangular columns (17).

3. The floor deck hoisting structure according to claim 2, wherein, The elastic unit comprises a compression spring (19) mounted on the side of the rectangular rod (18), the other end of the compression spring (19) is mounted on the inner wall of the movable slot.

4. The floor deck hoisting structure according to claim 2, wherein, The diameter of the first bevel gear (10) is greater than the diameter of the third bevel gear (14).

5. The floor deck hoisting structure according to claim 2, wherein, The induction driving unit comprises two electric push rods (15) mounted on the inner wall of the side of the transmission cavity, the output end of each electric push rod (15) is provided with a moving plate, the side of each moving plate is rotatably provided with a bearing (16), the bearing (16) is sleeved on a rectangular column (17), the side of the base (1) is provided with four supporting blocks (27), the opposite sides of each two supporting blocks (27) are rotatably provided with an activity rod (20), the activity rod (20) is sleeved with a pressing plate (22), the side of the base (1) is provided with four induction buttons (23), each supporting block (27) is provided with an element matched with the activity rod (20).

6. The floor deck hoisting structure according to claim 5, wherein, The element comprises a through cavity formed in the supporting block (27), the activity rod (20) is provided with a torsion spring (21), the other end of the torsion spring (21) is mounted on the inner wall of the side of the through cavity.

7. The floor deck hoisting structure according to claim 1, wherein, The top of the base (1) is provided with two buffer grooves, the bottom inner wall of each buffer groove is provided with a damping telescopic rod (24), the end of each damping telescopic rod (24) is rotatably provided with a top plate (26), the bottom of the top plate (26) is provided with two buffer springs (25), the other end of each buffer spring (25) is mounted on the bottom inner wall of each groove.

Images