Tower crane standard knot jacking anti-drop control device

Abstract

The application belongs to the technical field of ocean engineering construction, and particularly relates to a tower crane standard section jacking anti-falling control device, which comprises a jacking cross beam, three through holes are arranged on the two sides of the jacking cross beam, a bolt rod is inserted and slidably connected at the three through holes, an inclined surface block is slidably connected to one side of the upper end of the bolt rod, and a foreign matter removing assembly for preventing foreign matter from extruding the jacking cross beam is further arranged on the jacking cross beam. The foreign matter removing assembly is used to remove the foreign matter above the bearing plate, so that the construction material fragments, parts and other residues are prevented from adhering to the jacking cross beam due to wind force, personnel activities or equipment movement, the weight of the jacking cross beam is prevented from being increased, the stability of the overall structure is prevented from being affected, and the situation that the jacking mechanism is overloaded and a safety accident is caused is prevented.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of offshore engineering construction, and particularly relates to a tower crane standard section jacking anti-falling control device. BACKGROUND

[0002] A tower crane, also known as a tower crane, is a rotary crane with a movable arm on the upper part of a high tower. In offshore engineering, such as installation of observation platforms and erection of offshore oil well platforms, the tower crane can accurately and efficiently complete high-altitude work tasks. Generally, the tower crane is inserted into the climbing hole of the standard section through the pins at both ends of the jacking cross beam, and the part above the lower support of the tower crane is jacked to a certain height by using the jacking oil cylinder, and then the standard section is increased or decreased.

[0003] Patent No. CN214383664U discloses a tower crane jacking cross beam anti-falling device, which comprises a jacking cross beam connected with a climbing round hole of a tower crane standard section, an anti-falling mechanism arranged at the end of the jacking cross beam and preventing the end of the jacking cross beam from falling off, the anti-falling mechanism comprising two pin round rods which are respectively detachably connected to the two ends of the jacking cross beam and inserted into the climbing round hole, a stopper slot opened on the outer wall of the pin round rod in the radial direction of the pin round rod, a stopper slidably connected to the stopper slot in the radial direction of the pin round rod, and a stopper extension assembly arranged in the pin round rod and allowing the stopper to extend out of the outer wall of the pin round rod. The patent has the effect that when the pin round rod is inserted into the climbing round hole, the stopper can abut against the side of the climbing round hole away from the jacking cross beam, so that the pin round rod is difficult to fall off the climbing round hole.

[0004] However, the above technical solution still has the following deficiencies in actual application:

[0005] During construction, various residues such as building material fragments and parts may be generated, which may adhere to the jacking cross beam due to wind force, personnel activity or equipment movement, thereby increasing the weight of the jacking cross beam. If the weight increases, not only will it exceed the original designed bearing range, thereby affecting the stability of the overall structure, but also it will cause the jacking mechanism to be overloaded, and even cause a safety accident. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present application proposes a tower crane standard section jacking anti-falling control device.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a tower crane standard section jacking anti-falling control device, comprising a jacking cross beam, a through hole three is arranged on both sides of the jacking cross beam, a pin rod is inserted and slidably connected at the through hole three, a bevel block is slidably connected on one side of the upper end of the pin rod, and a foreign matter removing assembly for preventing foreign matter from pressing the jacking cross beam is further arranged on the jacking cross beam.

[0008] The foreign matter removing assembly comprises a spring damper fixedly connected to one side of the bottom of the inner cavity of the jacking cross beam, a connecting plate fixedly connected to the piston end of the spring damper, a connecting rod fixedly connected to the upper end surface of the connecting plate, a through hole one in the upper end of the jacking cross beam, a rotating block rotatably arranged on one side of the upper end of the connecting rod, and a bearing plate fixedly connected to the upper end surface of the rotating block.

[0009] Preferably, the inclined block is fixedly connected with a spring one at the lower end, and the end of the spring one away from the inclined block is fixedly connected with the inner cavity of the plug rod.

[0010] Preferably, the inclined block is fixedly connected with a pull rod on one side, the pull rod is inserted into and slidably connected with the bottom of the plug rod, and the pull rod is fixedly connected with a pull block at the lower end.

[0011] Preferably, the jacking cross beam is provided with a through hole two on both sides of the upper end, a push plate is fixedly connected to one side of the plug rod, the push plate penetrates through the through hole two and is slidably connected therewith, a spring two is fixedly connected to one side of the push plate, and the end of the spring two away from the push plate is fixedly connected with the hole wall of the through hole two.

[0012] Preferably, the connecting plate is fixedly connected with a pressing rod on one side, and a pressure sensor is fixedly connected to one side of the bottom of the inner cavity of the jacking cross beam, so that when the pressing rod moves downward, the end portion of the pressing rod is in contact with the pressure sensor.

[0013] Preferably, the connecting rod is fixedly connected with a motor two on one side of the upper end, and the output end of the motor two is fixedly connected with one side of the rotating block.

[0014] Preferably, a plurality of rotating rollers are rotatably arranged on the upper side of the bearing plate, a plurality of push blocks are radially distributed and slidably connected on the rotating rollers, a motor one is fixedly connected to one side of the bearing plate, and the output end of the motor one is fixedly connected with one end of the rotating roller.

[0015] Preferably, a fixed roller is fixedly connected to one side of the inner cavity of the rotating roller, a spring three is fixedly connected to one side of the push block, and the end of the spring three away from the push block is fixedly connected to the fixed roller.

[0016] Preferably, blade plates are slidably connected through sliding grooves on both sides of the inner cavity of the bearing plate, a connecting rod is rotatably arranged at one end of the blade plate, and a threaded block is rotatably arranged at the end of the connecting rod away from the blade plate.

[0017] Preferably, a threaded rod is threadedly connected to one side of the threaded block, a supporting block is rotatably connected to the lower end of the threaded rod, the supporting block is fixedly connected to the bearing plate, a motor three is fixedly connected to one side of the lower end of the bearing plate, and the output end of the motor three is fixedly connected with one end of the threaded rod.

[0018] The present application has the following advantages:

[0019] 1. The tower standard section jacking anti-disengagement control device of the present application, the moving of the dial plate makes the bolt rod retract into the jacking cross beam inner cavity, then the bolt rod on both sides of the jacking cross beam is aligned with the climbing hole opened in the tower standard section, then the dial plate is loosened, the bolt rod resets under the action of spring two, the bolt rod is inserted into the climbing hole, at the same time, the inclined surface block will move downward due to the contact of its inclined surface with the outside of the climbing hole and retract into the bolt rod inner cavity, when the inclined surface block enters the inside of the climbing hole, it resets again under the action of spring one and is inserted into the other side of the insertion hole inside the climbing hole, so that the jacking cross beam and the standard section are firmly connected, the jacking cross beam is not easy to disengage, and the probability of accidents during the installation or disassembly of the standard section of the tower crane is reduced.

[0020] 2. The tower standard section jacking anti-disengagement control device of the present application, when foreign matter moves to the top of the jacking cross beam, the pressure rod will contact the pressure sensor, when the pressure sensor detects the pressure signal, motor two drives the bearing plate to rotate and incline, the foreign matter attached to the bearing plate will slide off the bearing plate, thereby achieving the removal of foreign matter above the bearing plate, avoiding the situation that building material fragments, parts and other residues are attached to the jacking cross beam due to wind force, personnel activity or equipment movement, causing the weight of the jacking cross beam to increase, affecting the stability of the overall structure, even causing the jacking mechanism to overload and causing safety accidents, and when the bearing plate is inclined, multiple rotating rollers rotate at the same time, the rotating rollers and the surface of the foreign matter form friction when the rotating rollers rotate, promoting the falling of the foreign matter, at the same time, the push block on the surface of the rotating roller will constantly push the foreign matter, further promoting the disengagement of the foreign matter, at the same time, the push block will constantly contact the bearing plate shell, and since one side of the push block is inclined, the push block will retract into the rotating roller inner cavity when it contacts the bearing plate shell, so that the foreign matter is not rolled into the bearing plate inner cavity, and when the push block moves out of the bearing plate inner cavity, the push block will vibrate due to spring three, promoting the falling of the foreign matter through vibration, and when motor three rotates the threaded rod, the threaded block moves up and down and drives the connecting rod to rotate, the connecting rod drives the two side blade plates to slide in different directions at the same time, cutting the foreign matter wrapped around the bearing plate, so that the above-mentioned way can achieve the multi-directional pushing and cutting effect of the foreign matter with strong adhesion, thereby avoiding the situation that the foreign matter is strongly attached to the bearing plate and may be wrapped around the bearing plate, and it is difficult for the bearing plate to incline to make it fall smoothly, causing the foreign matter to always adhere to the bearing plate, also affecting the normal use of the jacking cross beam. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings.

[0022] Figure 1 is a three-dimensional structure schematic diagram of the present application;

[0023] Figure 2 is a schematic diagram of the internal three-dimensional structure of the jacking cross beam;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure at the load-bearing plate;

[0025] Figure 4 is Figure 3 is a partial enlarged view at A in FIG. 6;

[0026] Figure 5 is a schematic diagram of the three-dimensional structure of the rotating roller;

[0027] Figure 6 is a schematic diagram of the three-dimensional structure at the spring damper;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure at the threaded block;

[0029] Figure 8 is a schematic diagram of the three-dimensional structure at the latch rod.

[0030] In the figure: 1, jacking cross beam; 2, load-bearing plate; 3, rotating roller; 4, motor one; 5, latch rod; 6, inclined block; 7, spring damper; 8, pressure sensor; 9, pressure rod; 10, connecting rod; 11, blade plate; 12, motor two; 13, spring one; 14, pull rod; 15, spring two; 16, motor three; 17, threaded rod; 18, threaded block; 19, connecting rod; 20, push block; 21, connecting plate; 22, spring three; 23, fixed roller; 24, pull block; 25, push plate; 26, through hole one; 27, through hole two; 28, through hole three; 29, rotating block; 30, support block. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figures 1-8 The present application provides a technical solution: a tower crane standard section jacking anti-falling control device, comprising a jacking cross beam 1, through holes three 28 are arranged on both sides of the jacking cross beam 1, latch rods 5 are inserted and slidingly connected at the through holes three 28, inclined blocks 6 are slidingly connected on one side of the upper end of the latch rods 5, and foreign matter removing assemblies for preventing foreign matter from extruding the jacking cross beam 1 are further arranged on the jacking cross beam 1;

[0033] The foreign object removal assembly includes a spring damper 7 fixedly connected to one side of the bottom of the inner cavity of the lifting beam 1. A connecting plate 21 is fixedly connected to the piston end of the spring damper 7. A connecting rod 10 is fixedly connected to the upper end face of the connecting plate 21. The connecting rod 10 passes through the through hole 26 in the middle of the upper end of the lifting beam 1. A rotating block 29 is rotatably arranged on one side of the upper end of the connecting rod 10. A load-bearing plate 2 is fixedly connected to the upper end face of the rotating block 29.

[0034] In this embodiment, as Figure 7 , Figure 8 As shown, a spring 13 is fixedly connected to the lower end of the inclined block 6, and the end of the spring 13 away from the inclined block 6 is fixedly connected to one side of the inner cavity of the pin rod 5.

[0035] A pull rod 14 is fixedly connected to one side of the inclined block 6. The pull rod 14 is inserted into and slidably connected to the bottom of the pin rod 5. A pull block 24 is fixedly connected to the lower end of the pull rod 14.

[0036] Both sides of the upper end of the lifting beam 1 are provided with through holes 27. A lever 25 is fixedly connected to one side of the pin rod 5. The lever 25 passes through and slides through the through hole 27. A spring 15 is fixedly connected to one side of the lever 25. The end of the spring 15 away from the lever 25 is fixedly connected to the wall of the through hole 27.

[0037] Specifically, the movable lever 25 retracts the pin 5 into the inner cavity of the lifting beam 1. Then, the pins 5 on both sides of the lifting beam 1 are aligned with the climbing holes opened in the standard section of the tower crane. The lever 25 is then released, allowing the pins 5 to return to their original position under the action of spring 15. The pins 5 are then inserted into the climbing holes. At the same time, the inclined block 6 moves downwards due to its inclined surface contacting the outside of the climbing hole and retracts into the inner cavity of the pin 5. After the inclined block 6 enters the climbing hole, it is then retracted by spring 13. Under the action of the mechanism, the lifting beam 1 is reset and inserted again into the other side of the climbing hole, thus making the lifting beam 1 firmly connected to the standard section. This makes the lifting beam 1 less likely to detach, reducing the probability of accidents when adding or removing standard sections of the tower crane. When it is necessary to remove the lifting beam 1, move the pull block 24 downward to lower the pull rod 14 and the inclined block 6. At the same time, drive the pin rod 5 to retract into the inner cavity of the lifting beam 1, and the lifting beam 1 can be removed.

[0038] In this embodiment, as Figures 1-7 As shown, a pressure rod 9 is fixedly connected to one side of the connecting plate 21, and a pressure sensor 8 is fixedly connected to one side of the bottom of the inner cavity of the lifting beam 1. When the pressure rod 9 moves downward, its end will contact the pressure sensor 8.

[0039] A motor 12 is fixedly connected to one side of the upper end of the connecting rod 10, and the output end of the motor 12 is fixedly connected to one side of the rotating block 29.

[0040] A plurality of rotating rollers 3 are rotatably arranged on the upper side of the load bearing plate 2, a plurality of push blocks 20 are radially distributed and slidably connected on the rotating rollers 3, a motor 4 is fixedly connected on one side of the load bearing plate 2, and the output end of the motor 4 is fixedly connected with one end of the rotating roller 3.

[0041] A fixed roller 23 is fixedly connected on one side of the inner cavity of the rotating roller 3, and a spring 22 is fixedly connected on one side of the push block 20.

[0042] Blade plates 11 are slidably connected on both sides of the inner cavity of the load bearing plate 2 through sliding grooves, a connecting rod 19 is rotatably arranged on one end of the blade plate 11, and a threaded block 18 is rotatably arranged on the end of the connecting rod 19 away from the blade plate 11.

[0043] A threaded rod 17 is threadedly connected on one side of the threaded block 18, a support block 30 is rotatably connected on the lower end of the threaded rod 17, the support block 30 is fixedly connected on the load bearing plate 2, a motor 16 is fixedly connected on one side of the lower end of the load bearing plate 2, and the output end of the motor 16 is fixedly connected with one end of the threaded rod 17.

[0044] Specifically, the existing tower crane jacking beam anti-falling device may produce various residues such as building material fragments and parts during construction, which may be attached to the jacking beam 1 due to wind, personnel activities or equipment movement, thereby increasing the weight of the jacking beam 1. If the weight increases, not only the designed load bearing range is exceeded, thereby affecting the stability of the overall structure, but also the jacking mechanism is overloaded, and even a safety accident is caused.

[0045] Therefore, in order to solve the above problems, when the load bearing plate 2 is arranged above the jacking beam 1, if foreign matters move above the jacking beam 1, they will first move to the load bearing plate 2. When there is no foreign matter above the load bearing plate 2, the spring damper 7 is in a normal state, and the pressure rod 9 does not contact the pressure sensor 8. When there is foreign matter above the load bearing plate 2, the load bearing plate 2 will be pressed downward due to the increase of gravity, so that the spring damper 7 is deformed, and the pressure rod 9 contacts the pressure sensor 8. When the pressure sensor 8 detects a pressure signal, the motor 12 drives the load bearing plate 2 to rotate and tilt, so that the foreign matters attached to the load bearing plate 2 slide off the load bearing plate 2, thereby achieving the removal of foreign matters above the load bearing plate 2, avoiding the residues such as building material fragments and parts from being attached to the jacking beam 1 due to wind, personnel activities or equipment movement, thereby increasing the weight of the jacking beam 1, affecting the stability of the overall structure, and even causing the jacking mechanism to be overloaded and a safety accident to occur.

[0046] Although the above-mentioned way can make the foreign matter slide off the load-bearing plate 2, in some cases, the foreign matter has strong adhesion to the load-bearing plate 2, and the foreign matter can be wrapped around the load-bearing plate 2, and it is difficult to make it fall smoothly by the inclination of the load-bearing plate 2, so that the foreign matter always adheres to the load-bearing plate 2, which also affects the use of the jacking beam 1, therefore, in order to avoid this situation, when the load-bearing plate 2 is inclined, the motor 4 is also started to drive the plurality of rotating rollers 3 to rotate at the same time, when the rotating rollers 3 rotate, the rotating rollers 3 form friction with the surface of the foreign matter, promoting the falling of the foreign matter, at the same time, when the rotating rollers 3 rotate, the push block 20 on the surface of the rotating rollers 3 will constantly push the foreign matter, further promoting the disengagement of the foreign matter, at the same time, the push block 20 will constantly contact with the shell of the load-bearing plate 2, and because one side of the push block 20 is inclined, when the push block 20 contacts with the shell of the load-bearing plate 2, it will shrink into the inner cavity of the rotating roller 3, so that the foreign matter will not be rolled into the inner cavity of the load-bearing plate 2, and when the push block 20 moves out of the inner cavity of the load-bearing plate 2, the push block 20 will vibrate due to the spring 22, which promotes the falling of the foreign matter by vibration, and when the motor 16 drives the threaded rod 17 to rotate, the threaded block 18 moves up and down, and drives the connecting rod 19 to rotate, the connecting rod 19 drives the two-sided blade plate 11 to slide in different directions at the same time, and cuts the foreign matter wrapped around the load-bearing plate 2, so that through the above-mentioned way, the foreign matter with strong adhesion can be pushed in multiple directions and cut, thereby avoiding the situation that the foreign matter has strong adhesion to the load-bearing plate 2, and the foreign matter can be wrapped around the load-bearing plate 2, and it is difficult to make it fall smoothly by the inclination of the load-bearing plate 2, so that the foreign matter always adheres to the load-bearing plate 2, which also affects the normal use of the jacking beam 1.

[0047] Working principle: moving the dial plate 25 makes the bolt rod 5 retract into the inner cavity of the jacking beam 1, then aligns the bolt rod 5 on both sides of the jacking beam 1 with the climbing hole opened in the tower crane standard section, then releases the dial plate 25, makes the bolt rod 5 reset under the action of spring two 15, the bolt rod 5 is inserted into the climbing hole, at the same time, the inclined block 6 will move down due to the contact of its inclined surface with the outside of the climbing hole and retract into the inner cavity of the bolt rod 5, when the inclined block 6 enters the inside of the climbing hole, it will reset again under the action of spring one 13 and insert into the insertion hole on the other side of the climbing hole, that is, the jacking beam 1 and the standard section are firmly connected, so that the jacking beam 1 is not easy to detach, so that the probability of accidents during the work of adding or removing the standard section of the tower crane is reduced; when it is necessary to remove the jacking beam 1, move the pull block 24 downward, make the pull rod 14 and the inclined block 6 descend, at the same time, drive the bolt rod 5 to retract into the inner cavity of the jacking beam 1, then the jacking beam 1 can be removed, because the bearing plate 2 is arranged above the jacking beam 1, when foreign matter moves above the jacking beam 1, it will first move to the bearing plate 2, and when there is no foreign matter on the bearing plate 2, the spring damper 7 is in normal state, the pressure bar 9 does not contact the pressure sensor 8, when there is foreign matter above the bearing plate 2, the bearing plate 2 will be pressed downward due to the increase of gravity, which will make the spring damper 7 deform, and the pressure bar 9 will contact the pressure sensor 8, when the pressure sensor 8 detects the pressure signal, the motor two 12 drives the bearing plate 2 to rotate, which makes it tilt, then the foreign matter attached to the bearing plate 2 will slide off the bearing plate 2, so as to realize the removal of the foreign matter above the bearing plate 2, avoid the building material fragments, parts and other residues from being attached to the jacking beam 1 due to wind force, personnel activity or equipment movement, which will increase the weight of the jacking beam 1 and affect the stability of the overall structure, even cause the jacking mechanism to overload and cause safety accidents.Although the above-mentioned way can make the foreign matter slide off the load-bearing plate 2, in some cases, the adhesion of the foreign matter to the load-bearing plate 2 is strong, and the foreign matter can be wound on the load-bearing plate 2, and it is difficult to make it fall off smoothly by the inclination of the load-bearing plate 2, so that the foreign matter always adheres to the load-bearing plate 2, which also affects the use of the jacking beam 1, therefore, in order to avoid this situation, when the load-bearing plate 2 is inclined, the motor 4 is also started to drive the plurality of rotating rollers 3 to rotate at the same time, when the rotating rollers 3 rotate, the rotating rollers 3 form friction with the surface of the foreign matter, promoting the falling of the foreign matter, at the same time, when the rotating rollers 3 rotate, the push block 20 on the surface of the rotating rollers 3 will constantly push the foreign matter, further promoting the disengagement of the foreign matter, at the same time, the push block 20 will constantly contact with the shell of the load-bearing plate 2, and because one side of the push block 20 is inclined, when the push block 20 contacts with the shell of the load-bearing plate 2, it will shrink into the inner cavity of the rotating roller 3, so that the foreign matter will not be rolled into the inner cavity of the load-bearing plate 2, and when the push block 20 moves out of the inner cavity of the load-bearing plate 2, the push block 20 will vibrate due to the spring 22, which promotes the falling of the foreign matter by vibration, and when the motor 16 drives the threaded rod 17 to rotate, the threaded block 18 moves up and down and drives the connecting rod 19 to rotate, the connecting rod 19 drives the two side blade plates 11 to slide in different directions at the same time, cutting the foreign matter wound on the load-bearing plate 2, so that through the above-mentioned way, the foreign matter with strong adhesion can be pushed in multiple directions and cut, thereby avoiding the situation that the foreign matter with strong adhesion to the load-bearing plate 2 can be wound on the load-bearing plate 2, and it is difficult to make it fall off smoothly by the inclination of the load-bearing plate 2, so that the foreign matter always adheres to the load-bearing plate 2, which also affects the normal use of the jacking beam 1.

[0048] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A tower crane standard segment jacking anti-falling control device, comprising a jacking cross beam (1), characterized in that: The jacking cross beam (1) is provided with a through hole three (28) on both sides, the latch rod (5) is connected to the through hole three (28) through insertion and sliding connection, the latch rod (5) is provided with the inclined surface block (6) on one side of the upper end through sliding connection, and the jacking cross beam (1) is further provided with the foreign matter removing assembly for preventing foreign matter from extruding the jacking cross beam (1). The foreign matter removing component includes a spring damper (7) fixedly connected to one side of the bottom of the inner cavity of the jacking cross beam (1), a connecting plate (21) fixedly connected to the piston end of the spring damper (7), a connecting rod (10) fixedly connected to the upper end surface of the connecting plate (21), the connecting rod (10) penetrating through the through hole one (26) in the middle of the upper end of the jacking cross beam (1), a rotating block (29) rotatably arranged on one side of the upper end of the connecting rod (10), a bearing plate (2) fixedly connected to the upper end surface of the rotating block (29), a spring one (13) fixedly connected to the lower end of the inclined block (6), one end of the spring one (13) away from the inclined block (6) fixedly connected to one side of the inner cavity of the bolt rod (5), a pull rod (14) fixedly connected to one side of the inclined block (6), the pull rod (14) inserted into and slidably connected to the bottom of the bolt rod (5), a pull block (24) fixedly connected to the lower end of the pull rod (14), through holes two (27) arranged on both sides of the upper end of the jacking cross beam (1), a push plate (25) fixedly connected to one side of the bolt rod (5), the push plate (25) penetrating through and slidably connected to the through holes two (27), a spring two (15) fixedly connected to one side of the push plate (25), one end of the spring two (15) away from the push plate (25) fixedly connected to the hole wall of the through holes two (27), a pressure sensor (8) fixedly connected to one side of the bottom of the inner cavity of the jacking cross beam (1), when the pressure bar (9) moves downward, the end portion of the pressure bar (9) will contact the pressure sensor (8), a motor two (12) fixedly connected to one side of the upper end of the connecting rod (10), the output end of the motor two (12) fixedly connected to one side of the rotating block (29), a plurality of rotating rollers (3) rotatably arranged on the upper side of the bearing plate (2), a plurality of push blocks (20) radially distributed and slidably connected to the rotating rollers (3), a motor one (4) fixedly connected to one side of the bearing plate (2), the output end of the motor one (4) fixedly connected to one end of the rotating rollers (3), a fixed roller (23) fixedly connected to one side of the inner cavity of the rotating roller (3), a spring three (22) fixedly connected to one side of the push block (20), one end of the spring three (22) away from the push block (20) fixedly connected to the fixed roller (23), blade plates (11) slidably connected to both sides of the inner cavity of the bearing plate (2) through sliding grooves, a connecting rod (19) rotatably arranged at one end of the blade plate (11), a threaded block (18) rotatably arranged at one end of the connecting rod (19) away from the blade plate (11), a threaded rod (17) screwedly connected to one side of the threaded block (18), a support block (30) rotatably connected to the lower end of the bearing plate (2), a motor three (16) fixedly connected to one side of the lower end of the bearing plate (2), the output end of the motor three (16) fixedly connected to one end of the threaded rod (17).

2. The tower crane standard segment jacking anti-drop control device according to claim 1, characterized in that: The support block (30) is fixedly connected to the bearing plate (2).

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