A stage hoisting device and method

Abstract

The present invention relates to the field of stage hoisting, and particularly to a stage hoisting device and method. It includes a hoisting seat, a connection and alignment component, a moving component, a hook component, and a hoisting component. The connection and alignment component is located between the hoisting seat and the lifting end of the elevator; the moving component is movably arranged on the hoisting seat; the hook component is located at the bottom of the device; the hoisting components are arranged in pairs and mirror images, respectively winding the two ends of the hoisting rope. The upper hoisting component is connected to the moving component, and the lower hoisting component is connected to the hook component. In the present invention, through the movement of the pressing plate, on the one hand, the pressing sleeve is squeezed, and the current-variable fluid moves and then changes from a liquid state to a solid state, playing a role in fixing the winding cylinder; on the other hand, the rotating frame is pushed, driving the clamping plate and the clamping table to clamp the hoisting rope. By fixing the winding cylinder and the hoisting rope to handle the situation of out-of-control hoisting, accidents can be effectively avoided, and the hoisting operation of the stage will not be affected after the treatment and can be restored.

Description

Technical Field

[0001] The invention relates to the field of stage lifting, and in particular to a stage lifting device and method. Background Art

[0002] Stage hoisting is an indispensable part of the stage construction and performance process. It involves the safe and stable hoisting of various stage equipment, props, scenery, etc. to the designated location. With the development of the performance industry, more and more equipment such as lighting, sound, movable stage equipment, etc. are installed on the top of the stage, and the hoisting weight is increasing. Therefore, the safety and stability of the hoisting equipment are particularly important.

[0003] A Chinese patent with authorization announcement number CN216190186U discloses a stage lifting device, including a suspension point pulley mechanism, a rope mounted on the suspension point pulley mechanism, and a winch connected to one end of the rope; the suspension point pulley mechanism includes: a support frame; a wheel body rotatably arranged on the support frame through a rotating shaft, the outer circumferential surface of the wheel body is concavely provided with a groove for clamping the rope, and a plurality of protrusions are arranged in the circumferential direction in the groove; the outer circumferential surface of the wheel body is also provided with a plurality of clamping grooves equidistantly arranged in the circumferential direction; a fixing member, which is driven by a driving mechanism and can be lifted and lowered on the support frame, the fixing member includes an arc-shaped pressing plate, the bottom of the arc-shaped pressing plate is provided with a tightening block for inserting into the groove to press the rope; the bottom of the arc-shaped pressing plate is also provided with a clamping strip for clamping into the clamping groove.

[0004] The above-mentioned stage lifting device has the following shortcomings: 1. The lifting point is fixed and cannot be adjusted according to the stage size requirements, resulting in large lifting limitations. 2. The self-locking is achieved by lowering the arc-shaped pressure plate, which is a synchronous fixation of the rope and the roller. Two objects are fixed at one time, so the stability of the fixation cannot be guaranteed. In particular, the rope is easy to slide between the roller and the arc-shaped pressure plate, causing safety hazards. 3. Setting a single-point lifting not only has a slow lifting efficiency, but also the entire lifting operation needs to be stopped for maintenance when problems occur. Summary of the invention

[0005] In view of the problems existing in the background technology, a stage lifting device is proposed, which handles the situation of uncontrolled lifting by fixing the winding tube and the lifting rope, effectively avoiding accidents, and the device can be restored after handling without affecting the stage lifting operation.

[0006] The present invention proposes a stage lifting device, comprising a lifting seat, a connection correction component, a moving component, a hook component and a lifting component. A plurality of lifting grooves are arranged at the bottom of the lifting seat; the connection correction component is located between the lifting seat and the lifting end of the lift, and the torsion of the stage during lifting is corrected by reverse rotation of the upper and lower ends; the moving components are arranged one by one and are movable on the plurality of lifting grooves of the lifting seat; the hook component is located at the bottom of the device and is used to connect the stage; the lifting components are arranged in pairs and in mirror images, and are respectively connected to the two ends of the lifting rope, the upper lifting component is connected to the moving component, and the lower lifting component is connected to the hook component.

[0007] When the lifting component rotates uncontrollably at the winding end, on the one hand, the movement of the mobile end generates extrusion to transfer the electrorheological fluid from the storage space to the winding end, and at the same time converts it from liquid to solid to fix the winding end. On the other hand, the movement of the mobile end generates push to drive the locking end to rotate until it locks the lifting rope.

[0008] Preferably, the connection correction assembly includes a connecting seat, an upper connecting rod rotatably arranged at the upper end of the connecting seat, and a lower connecting rod rotatably arranged at the lower end of the connecting seat; the upper connecting rod, the connecting seat, and the lower connecting rod are coaxial; the upper connecting rod and the lower connecting rod are driven to rotate in opposite directions by a reverse driving member; the upper connecting rod is connected to the lifting end of the elevator; and the lower connecting rod is connected to the center of the lifting seat.

[0009] Preferably, the moving assembly includes a sliding seat slidably arranged in the lifting groove; the bottom of the sliding seat extends out of the lifting groove to connect with the corresponding lifting assembly, and sliding parts and brake parts cooperating with the groove wall of the lifting groove are arranged on both sides.

[0010] Preferably, the lifting assembly includes a mounting frame connecting the moving assembly and the hook assembly; a winding piece is arranged on the mounting frame, and a clamping piece and a clamping platform that cooperate with each other are also arranged; the moving end, the storage space, and the winding end are located on the winding piece; and the clamping end is located on the clamping piece.

[0011] Preferably, the winding component includes a transmission column connected to one side of the mounting frame by rotation; one side of the winding tube rotates synchronously with the transmission column, and an electric-controlled adsorption plate is arranged on the other side, which is hollow inside and has an adjustment sleeve passing through the electric-controlled adsorption plate; an extrusion plate is arranged on the end of the adjustment sleeve extending out of the winding tube; a rotatable turntable and a fixed tube passing through the center of the turntable are arranged at the other end of the mounting frame; the head of the fixed tube seals and rotates through the adjustment sleeve, and a through hole one is arranged, and the tail enters the winding tube, and a through hole two is arranged; the extrusion sleeve is located between the turntable and the extrusion plate, and is filled with electrorheological fluid; the extrusion sleeve is moved and extruded by the extrusion plate, and the electrorheological fluid enters the winding tube from through hole one and through hole two; pressure switches are arranged on the turntable and the extrusion plate, and when the pressure of the two reaches the set threshold, the electric field generator is started to change the electrorheological fluid from liquid to solid.

[0012] Preferably, the engaging member includes an engaging frame located on one side of the mounting frame; a rotating frame rotatably mounted via a rotating shaft is provided on the engaging frame; one end of the rotating frame is pushed along with the movement of the extrusion plate, driving the engaging plate at the other end to move toward the lifting rope.

[0013] Preferably, the engaging platform is located on the other side of the mounting frame and is opposite to the engaging member, and its engaging surface cooperates with the clamping plate to clamp the lifting rope.

[0014] Preferably, a rope guide plate is provided on the mounting frame, and the lifting rope is restricted between the engaging member and the engaging platform by providing a rope guide hole.

[0015] Preferably, the hook assembly includes a bearing platform connected to the lifting assembly, a center of gravity maintaining ball rotatably arranged at the bottom of the bearing platform, a mounting rod located at the bottom of the center of gravity maintaining ball, and a hook rotatably arranged at the bottom of the mounting rod.

[0016] The present invention proposes a stage lifting method, using the above-mentioned stage lifting device, and the steps are as follows:

[0017] S1. Install the connection correction assembly on the lifting end of the lift;

[0018] S2. Adjust the position of the mobile component according to the stage size;

[0019] S3, the paired lifting assemblies synchronously adjust the length of the lifting ropes, and connect the hook assemblies to the lifting points of the stage one by one;

[0020] S4, start lifting, when the stage rotates, the connection correction assembly corrects the torsion of the stage by rotating the upper and lower ends in the opposite direction;

[0021] S5. When the rotation of the winding end of the lifting assembly is uncontrolled, on the one hand, the movement of the mobile end generates extrusion to transfer the electrorheological fluid from the storage space to the winding end, and at the same time transforms it from liquid to solid to fix the winding end. On the other hand, the movement of the mobile end generates a push to drive the locking end to rotate until it locks the lifting rope.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects: the device is installed on the elevator by connecting the correction assembly, and the upper connecting rod and the lower connecting rod offset the torsional tendency of the lifting seat by reverse rotation, so that the stage is more stable and safe during the lifting process. Multiple groups of moving components are set, and the position of the lifting point can be flexibly adjusted through the cooperation of the sliding seat, the sliding member and the brake member, and the stability can also take into account the door to meet the lifting requirements of stages of different sizes. Two groups of lifting components are set up, one above and one below, so that the lifting rope can be wound and released synchronously during lifting, thereby improving the lifting efficiency. When a single point failure occurs, the device can continue to work to ensure its lifting performance. A winding member is set, and when the winding tube rotates rapidly, the extrusion plate moves. On the one hand, the movement of the extrusion plate can squeeze the extrusion sleeve, move through the electrorheological fluid, and then change from liquid to solid, which plays a role in fixing the winding tube; on the other hand, the movement of the extrusion plate can push the rotating frame, driving the clamping plate and the clamping table to clamp the lifting rope. By fixing the winding tube and the lifting rope, the situation of lifting out of control is handled, which effectively avoids accidents, and can be restored after handling, and will not affect the lifting operation of the stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view of the structure of the stage lifting device in the present invention;

[0024] Figure 2 It is a bottom view of the structure of the stage lifting device in the present invention;

[0025] Figure 3 It is a schematic diagram of the disassembly of the moving assembly, the hook assembly and the lifting assembly in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the connection correction component in the present invention;

[0027] Figure 5 It is a cross-sectional view of the moving component in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the lifting assembly in the present invention;

[0029] Figure 7 A partial cross-sectional view of the winding component of the present invention;

[0030] Figure 8 It is a schematic diagram of the disassembly of the clamping member and the clamping platform in the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the hook assembly in the present invention.

[0032] Figure numerals: 1. lifting seat; 101. lifting groove; 2. connection correction component; 201. connecting seat; 202. upper connecting rod; 203. lower connecting rod; 204. top seat; 205. base; 206. upper gear; 207. lower gear; 208. transmission gear one; 209. transmission gear two; 3. moving component; 301. sliding seat; 302. through channel; 303. double-headed bidirectional cylinder; 304. sliding member; 305. brake plate; 4. lifting component; 401. mounting frame; 402. wrapping member; 403. snap member; 404. snap member Table; 405, rope guide plate; 406, transmission column; 407, winding tube; 408, electric control adsorption sheet; 409, extrusion plate; 410, adjustment sleeve; 411, turntable; 412, extrusion sleeve; 413, fixed tube; 414, through hole one; 415, through hole two; 416, snap-fit ​​strip two; 417, snap-fit ​​frame; 418, rotating shaft; 419, rotating frame; 420, torsion spring; 421, clamping plate; 422, snap-fit ​​strip one; 5, lifting rope; 6, hook assembly; 601, load-bearing platform; 602, center of gravity maintaining ball; 603, mounting rod; 604, hook. DETAILED DESCRIPTION

[0033] Embodiment 1, as Figure 1-Figure 3 As shown, a stage lifting device proposed by the present invention comprises a lifting seat 1, a connection correction component 2, a moving component 3, a hook component 6 and a lifting component 4. A plurality of lifting grooves 101 are arranged at the bottom of the lifting seat 1; the connection correction component 2 is located between the lifting seat 1 and the lifting end of the lift, and the torsion of the stage during lifting is corrected by reverse rotation of the upper and lower ends; the moving components 3 are arranged one by one and are movable on the plurality of lifting grooves 101 of the lifting seat 1; the hook component 6 is located at the bottom of the device and is used to connect the stage; the lifting components 4 are arranged in pairs and in mirror images, and are respectively connected to the two ends of the lifting rope 5, the upper lifting component 4 is connected to the moving component 3, and the lower lifting component 4 is connected to the hook component 6.

[0034] When the rotation of the winding end of the lifting component 4 is uncontrolled, on the one hand, the movement of the mobile end generates extrusion to transfer the electrorheological fluid from the storage space to the winding end, and at the same time converts it from liquid to solid to fix the winding end. On the other hand, the movement of the mobile end generates push to drive the locking end to rotate until it locks the lifting rope 5.

[0035] like Figure 4 As shown, the connection correction component 2 includes a connecting seat 201, an upper connecting rod 202 rotatably arranged at the upper end of the connecting seat 201, and a lower connecting rod 203 rotatably arranged at the lower end of the connecting seat 201; the upper connecting rod 202, the connecting seat 201, and the lower connecting rod 203 are coaxial; the upper connecting rod 202 and the lower connecting rod 203 are driven to rotate in opposite directions by a reverse driving member; the upper connecting rod 202 is connected to the lifting end of the elevator through the top seat 204; the lower connecting rod 203 is connected to the center of the lifting seat 1 through the base 205.

[0036] It should be further explained that the reverse drive member includes an upper gear 206 sleeved on the outer periphery of the upper connecting rod 202, a lower gear 207 sleeved on the outer periphery of the lower connecting rod 203, a transmission gear 1 208 rotatably set on the upper end of the connecting seat 201 and keyed to the upper gear 206, and a transmission gear 2 209 rotatably set on the upper and lower ends of the connecting seat 201 and keyed to the transmission gear 1 208 and the lower gear 207.

[0037] When external force acts, such as in a strong wind environment, the lifting end rope of the elevator is twisted, and the upper connecting rod 202 and the lower connecting rod 203 are driven in the opposite direction through the reverse driving member, so that the lifting seat 1 rotates in the opposite direction while rotating with the lifting end rope. For example, if the lifting seat 1 is twisted, the upper connecting rod 202 and the lower connecting rod 203 are driven in the opposite direction through the reverse driving member, so that the lifting end rope of the elevator rotates in the opposite direction, driving the lifting seat 1 to rotate in the opposite direction while rotating with the lifting end rope. Through a positive and negative rotation, the purpose of correcting the stage twisting during the lifting process is finally achieved.

[0038] like Figure 5 As shown, the moving component 3 includes a sliding seat 301 slidably set in the lifting groove 101; the bottom of the sliding seat 301 extends out of the lifting groove 101 to connect with the corresponding lifting component 4, and sliding parts 304 and brake parts that cooperate with the groove wall of the lifting groove 101 are set on both sides.

[0039] like Figure 2 As shown, a lead screw driven to rotate by a motor is arranged in the lifting groove 101; a through channel 302 threadedly connected to the lead screw is arranged on the sliding seat 301.

[0040] It should be further explained that the sliding member 304 is a sliding wheel, which is rotatably arranged on the side wall of the sliding seat 301; the groove wall of the lifting groove 101 is provided with a sliding rail that cooperates with the sliding wheel to further position the sliding wheel, so that the movement of the sliding seat 301 is stable.

[0041] It should be further explained that the brake component includes an installation groove located in the side wall of the sliding seat 301; the installation groove is connected to the through channel 302; the double-headed bidirectional cylinder 303 is located in the installation groove, the brake plate 305 at one end faces the through channel 302, and the brake plate 305 at the other end faces the groove wall of the lifting groove 101.

[0042] It should be further explained that anti-skid protrusions are provided on the brake plate 305 .

[0043] By rotating the lead screw, the sliding seat 301 moves along the lifting groove 101 to adjust the position of the lifting point to match the stage size; after reaching the corresponding position, two sets of brake plates 305 extend, one set clamps the lead screw, and the other set clamps the groove wall of the lifting groove 101, fixing the position of the sliding seat 301 to keep it stable during the lifting process.

[0044] like Figure 6 As shown, the lifting assembly 4 includes a mounting frame 401 connecting the moving assembly 3 and the hook assembly 6; a winding member 402 is arranged on the mounting frame 401, and a clamping member 403 and a clamping platform 404 that cooperate with each other are also arranged; the moving end, the storage space, and the winding end are located on the winding member 402; and the clamping end is located on the clamping member 403. By setting two sets of lifting assemblies 4, one above and one below, the lifting rope 5 can be synchronously wound and released during lifting, thereby improving the lifting efficiency. When a single point failure occurs, the device can continue to work to ensure its lifting performance.

[0045] like Figure 7 As shown, the winding component 402 includes a transmission column 406 that is driven by a second motor to rotate and is rotatably connected to one side of the mounting frame 401; one side of the winding tube 407 rotates synchronously with the transmission column 406, and the other side is provided with an electric control adsorption sheet 408, which is hollow inside and has an adjustment sleeve 410 that passes through the electric control adsorption sheet 408; an extrusion plate 409 is provided on one end of the adjustment sleeve 410 that extends out of the winding tube 407; the winding tube 407 is the winding end.

[0046] The extrusion plate 409 is adsorbed and fixed by the electric control adsorption sheet 408 when it is powered on, and rotates and moves from one end of the adjustment sleeve 410 to the other end as the winding tube 407 rotates when it is not adsorbed; the extrusion plate 409 is the moving end.

[0047] It should be further explained that the electrically controlled adsorption sheet 408 is an electromagnet, which is energized synchronously with the motor 2 to adsorb the extrusion plate 409 made of metal; when the winding tube 407 rotates rapidly, the power is cut off and the fixing effect on the extrusion plate 409 is lost.

[0048] It should be further explained that a threaded section is provided on the adjusting sleeve 410 and is threadedly connected to the extrusion plate 409. When the adjusting sleeve 410 rotates rapidly along with the winding tube 407, the extrusion plate 409 rotates from its head to its tail.

[0049] It should be further explained that the other end of the mounting frame 401 is provided with a rotatable turntable 411 and a fixed pipe 413 that passes through the center of the turntable 411; the head of the fixed pipe 413 is sealed and rotated to pass through the adjustment sleeve 410, and a through hole 1 414 with a pressure valve is provided, and the tail enters the winding tube 407, and a through hole 2 415 with a pressure valve is provided. The extrusion sleeve 412 is located between the turntable 411 and the extrusion plate 409, and the inside is filled with transformer fluid, that is, the storage space; the extrusion sleeve 412 is moved and extruded by the extrusion plate 409, and the transformer fluid enters the winding tube 407 from the through hole 1 414 and the through hole 2 415.

[0050] It should be further explained that pressure switches are provided on the rotating disk 411 and the extrusion plate 409. When the pressure of the two reaches a set threshold, the electric field generator is activated to change the electrorheological fluid from liquid to solid.

[0051] Since the electrorheological fluid is filled in the extrusion sleeve 412, the fixing tube 413 and the winding tube 407, it can fix the winding tube 407 when it is in solid state, thereby preventing the hook assembly 6 from falling uncontrollably; when there is dangerous contact, the electrorheological fluid can be restored to liquid state by turning off the electric field generator, and the extrusion plate 409 can be rotated in the opposite direction so that the electrorheological fluid is sucked back into the storage space.

[0052] like Figure 8 As shown, the engaging member 403 includes an engaging frame 417 located on one side of the mounting frame 401; a rotating frame 419 rotatably mounted via a rotating shaft 418 is disposed on the engaging frame 417; one end of the rotating frame 419 is pushed along with the movement of the extrusion plate 409, driving the engaging plate 421 at the other end to move toward the lifting rope 5.

[0053] The engaging platform 404 is located at the other side of the mounting frame 401 and is opposite to the engaging member 403 . The engaging surface of the engaging platform 404 cooperates with the clamping plate 421 to clamp the lifting rope 5 .

[0054] A rope guide plate 405 is provided on the mounting frame 401 , and rope guide holes are provided to restrict the lifting rope 5 between the engaging member 403 and the engaging platform 404 .

[0055] It should be further explained that the clamping plate 421 is the clamping end, and one of them is movable and the other is fixed, and they cooperate with the clamping platform 404. The clamping plate 421 is provided with a clamping strip 1 422; the clamping surface of the clamping platform 404 is an arc surface, and a clamping strip 2 416 is provided at the convex end; the lifting rope 5 is located between the two and is clamped, so as to prevent the lifting rope 5 from being further stretched when the lifting is out of control.

[0056] It should be further explained that a torsion spring 420 is arranged inside the rotating frame 419; the rotating shaft 418 is connected by penetrating the torsion spring 420, and when the rotating frame 419 loses the effect of the extrusion plate 409, the torsion spring 420 can drive the rotating frame 419 to reset and release the control of the lifting rope 5.

[0057] like Fig. 9 As shown, the hook assembly 6 includes a load-bearing platform 601 connected to the lifting assembly 4, a center of gravity maintaining ball 602 rotatably set at the bottom of the load-bearing platform 601, a mounting rod 603 located at the bottom of the center of gravity maintaining ball 602, and a hook 604 rotatably set at the bottom of the mounting rod 603.

[0058] By setting the center of gravity maintaining ball 602, the hook 604 is always facing downward and will not flip over with the rotation of the load-bearing platform 601, thereby ensuring the stability and safety of the stage lifting.

[0059] Embodiment 2: This embodiment proposes a stage lifting method, using the stage lifting device described in Embodiment 1, and the steps are as follows:

[0060] S1, connect the top seat 204 of the connection correction component 2 to the lifting end of the lift;

[0061] S2. Adjust the position of the moving assembly 3 according to the stage size: the sliding seat 301 moves along the lifting groove 101 by rotating the lead screw. After reaching the corresponding position, two sets of brake plates 305 extend, one set clamps the lead screw, and the other set clamps the groove wall of the lifting groove 101 to fix the position of the sliding seat 301;

[0062] S3, the two upper and lower lifting assemblies 4 are synchronously wound around the lifting rope 5, the length of the lifting rope 5 is adjusted, and the hooks 604 of the hook assembly 6 are placed around the stage and connected to the lifting points of the stage one by one;

[0063] S4, start lifting, and correct the stage twist during the lifting process: under the action of external force, if the lifting end rope of the elevator is twisted, the upper connecting rod 202 and the lower connecting rod 203 are driven in the opposite direction through the reverse driving member, so that the lifting seat 1 rotates in the opposite direction while rotating with the lifting end rope. If the lifting seat 1 is twisted, the upper connecting rod 202 and the lower connecting rod 203 are driven in the opposite direction through the reverse driving member, so that the lifting end rope of the elevator rotates in the opposite direction, driving the lifting seat 1 to rotate in the opposite direction while rotating with the lifting end rope;

[0064] S5. When the winding end of the lifting component 4 rotates uncontrollably, due to the rapid rotation of the winding tube 407, the electrically controlled adsorption sheet 408 is powered off, and the extrusion plate 409 moves. On the one hand, the movement of the extrusion plate 409 can squeeze the extrusion sleeve 412, and the electrorheological fluid enters the winding tube 407 from the through hole 1 414 and the through hole 2 415; when the pressure of the turntable 411 and the extrusion plate 409 reaches the set threshold, the electric field generator is started to change the electrorheological fluid from liquid to solid, thereby fixing the winding tube 407; on the other hand, the extrusion plate 409 moves, and one end of the rotating frame 419 is pushed along with the movement of the extrusion plate 409, driving the clamping plate 421 at the other end to move toward the lifting rope 5. It and the clamping platform 404, one movable and one fixed, cooperate with each other to clamp the lifting rope 5 located between the two.

[0065] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A stage lifting device, characterized in that: include: A lifting seat (1) having a plurality of lifting grooves (101) arranged at the bottom; A connection correction component (2) is located between the lifting seat (1) and the lifting end of the lift, and corrects the torsion of the stage during lifting by rotating the upper and lower ends in opposite directions; The movable components (3) are arranged one by one in correspondence and movable on the plurality of lifting grooves (101) of the lifting seat (1); A hook assembly (6), located at the bottom of the device, used for connecting to the stage; and lifting components (4), which are arranged in pairs and in mirror image, and are respectively connected to the two ends of the lifting rope (5), the upper lifting component (4) being connected to the moving component (3), and the lower lifting component (4) being connected to the hook component (6); When the rotation of the winding end of the lifting component (4) is uncontrolled, on the one hand, the movement of the moving end generates extrusion, so that the electrorheological fluid is transferred from the storage space to the winding end, and at the same time, the liquid state is converted into a solid state to fix the winding end. On the other hand, the movement of the moving end produces a push, so that the clamping end is driven to rotate until it clamps the lifting rope (5); The lifting assembly (4) comprises a mounting frame (401) connected to the moving assembly (3) / hook assembly (6); a winding piece (402) is arranged on the mounting frame (401), and a clamping piece (403) and a clamping platform (404) that cooperate with each other are also arranged; the moving end, the storage space, and the winding end are located on the winding piece (402); and the clamping end is located on the clamping piece (403); The winding member (402) comprises a transmission column (406) connected to one side of the mounting frame (401) by rotation; one side of the winding tube (407) rotates synchronously with the transmission column (406), and the other side is provided with an electric control adsorption sheet (408), the interior of which is hollow, and an adjustment sleeve (410) is provided that passes through the electric control adsorption sheet (408); an extrusion plate (409) is provided on one end of the adjustment sleeve (410) extending out of the winding tube (407); The other end of the mounting frame (401) is provided with a rotatable turntable (411) and a fixed tube (413) penetrating the center of the turntable (411); the head of the fixed tube (413) seals and rotates through the adjustment sleeve (410) and is provided with a first through hole (414), and the tail enters the winding tube (407) and is provided with a second through hole (415); The extrusion sleeve (412) is located between the rotating disk (411) and the extrusion plate (409), and is filled with transformer fluid. The extrusion sleeve (412) is moved and extruded by the extrusion plate (409), and the transformer fluid enters the winding tube (407) from the first through hole (414) and the second through hole (415). A pressure switch is provided on the rotating disk (411) and the extrusion plate (409), and when the pressure of the two reaches a set threshold, the electric field generator is activated to change the electrorheological fluid from a liquid state to a solid state; The engaging member (403) comprises an engaging frame (417) located on one side of the mounting frame (401); a rotating frame (419) is arranged on the engaging frame (417) and is rotatably mounted via a rotating shaft (418); one end of the rotating frame (419) is pushed along with the movement of the extrusion plate (409), thereby driving the engaging plate (421) at the other end to move toward the lifting rope (5).

2. The stage lifting device according to claim 1, characterized in that: The connection correction assembly (2) comprises a connection seat (201), an upper connection rod (202) rotatably disposed at the upper end of the connection seat (201), and a lower connection rod (203) rotatably disposed at the lower end of the connection seat (201); The upper connecting rod (202), the connecting seat (201), and the lower connecting rod (203) are coaxial; the upper connecting rod (202) and the lower connecting rod (203) are driven to rotate in opposite directions by a reverse driving member; The upper connecting rod (202) is connected to the lifting end of the lift; The lower connecting rod (203) is connected to the center of the lifting seat (1).

3. The stage lifting device according to claim 1, characterized in that: The moving assembly (3) comprises a sliding seat (301) slidably arranged in the lifting groove (101); the bottom of the sliding seat (301) extends out of the lifting groove (101) to connect with the corresponding lifting assembly (4), and sliding parts (304) and brake parts that cooperate with the groove wall of the lifting groove (101) are arranged on both sides.

4. The stage lifting device according to claim 1, characterized in that: The engaging platform (404) is located on the other side of the mounting frame (401) and is opposite to the engaging member (403), and its engaging surface cooperates with the clamping plate (421) to clamp the lifting rope (5).

5. The stage lifting device according to claim 4, characterized in that: A rope guide plate (405) is provided on the mounting frame (401), and a rope guide hole is provided to restrict the lifting rope (5) between the engaging member (403) and the engaging platform (404).

6. The stage lifting device according to claim 1, characterized in that: The hook assembly (6) comprises a load-bearing platform (601) connected to the lifting assembly (4), a gravity center maintaining ball (602) rotatably arranged at the bottom of the load-bearing platform (601), a mounting rod (603) located at the bottom of the gravity center maintaining ball (602), and a hook (604) rotatably arranged at the bottom of the mounting rod (603).

7. A stage lifting method, characterized in that: Using the stage lifting device described in claim 1, the steps are as follows: S1. Install the connection correction assembly (2) on the lifting end of the lift; S2, adjusting the position of the mobile component (3) according to the stage size; S3, the paired lifting assemblies (4) synchronously adjust the length of the lifting rope (5) and connect the hook assemblies (6) to the lifting points of the stage one by one; S4, start lifting, when the stage rotates, the connection correction component (2) corrects the torsion of the stage by rotating the upper and lower ends in opposite directions; S5. When the winding end of the lifting assembly (4) rotates uncontrollably, on the one hand, the movement of the moving end generates extrusion, transferring the electrorheological fluid from the storage space to the winding end, and at the same time converting it from liquid to solid to fix the winding end. On the other hand, the movement of the moving end produces a push, driving the locking end to rotate until it locks the lifting rope (5).

Images