Tower crane standard knot jacking anti-falling control device

Abstract

The invention belongs to the technical field of ocean engineering construction, and particularly relates to a tower crane standard knot jacking anti-falling control device which comprises a jacking cross beam, third through holes are formed in the two sides of the jacking cross beam correspondingly, bolt rods are inserted into the third through holes in a sliding connection mode, and one sides of the upper ends of the bolt rods are slidably connected with slope blocks. The jacking cross beam is further provided with a foreign matter removing assembly for preventing foreign matter from extruding the jacking cross beam. By means of the foreign matter removing assembly, foreign matter above the bearing plate is removed, and the problems that building material fragments, parts and other residues are attached to the jacking cross beam due to wind power, personnel activity or equipment movement, consequently, the weight of the jacking cross beam is increased, the stability of the whole structure is affected, and even overload of the jacking mechanism occurs are solved. And safety accidents are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of marine engineering construction, in particular to a tower crane standard section jacking anti-slip control device. Background Art

[0002] Tower crane, abbreviated as tower crane, is a rotating crane with a boom installed on the upper part of a tall tower. In marine engineering, tower cranes can accurately and efficiently complete high-altitude operations such as installing observation platforms and setting up offshore oil well platforms. Generally, tower cranes will insert the pins at both ends of the lifting beam into the climbing holes of the standard section, and use the lifting cylinder to lift the part above the lower support of the tower crane to a certain height, and then increase or decrease the standard section.

[0003] The patent with announcement number CN214383664U discloses a tower crane jacking beam anti-detachment device, including a jacking beam used to be connected to a climbing circular hole of a standard section of a tower crane, an anti-detachment mechanism arranged at the end of the jacking beam and making it difficult for the end of the jacking beam to detach, the anti-detachment mechanism including two latch rods which are detachably connected to the two ends of the jacking beam and plugged into the climbing circular hole, a stop rod groove opened on the outer wall of the latch rod along the radial direction of the latch rod, a stop rod which is slidably connected to the stop rod groove along the radial direction of the latch rod, and a stop rod extending component arranged inside the latch rod and making the stop rod extend out of the outer wall of the latch rod. The patent has the effect that when the latch rod and the climbing circular hole are plugged in, the stop rod can abut against the side of the climbing circular hole away from the jacking beam, so that the latch rod is difficult to detach from the climbing circular hole.

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

[0005] During the construction process, various residues may be generated, such as fragments and parts of building materials. These residues may adhere to the jacking beam due to wind, personnel activities or equipment movement, thereby increasing the weight of the jacking beam. If the weight increases, it will not only exceed the original design load-bearing range, thereby affecting the stability of the overall structure, but also cause overload of the jacking mechanism and even cause safety accidents. Summary of the invention

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

[0007] The technical solution adopted by the present invention to solve the technical problem is: a tower crane standard section jacking anti-drop control device, including a jacking crossbeam, two sides of the jacking crossbeam are provided with three through holes, the three through holes are plugged and slidably connected with a latch rod, one side of the upper end of the latch rod is slidably connected with a ramp block, and the jacking crossbeam is also provided with a foreign matter removal component to prevent foreign matter from squeezing the jacking crossbeam;

[0008] The foreign matter removal assembly includes a spring damper fixedly connected to one side of the bottom of the inner cavity of the lifting beam, the piston end of the spring damper is fixedly connected to a connecting plate, the upper end surface of the connecting plate is fixedly connected to a connecting rod, the connecting rod passes through a through hole 1 in the middle of the upper end of the lifting beam, a rotating block is rotatably provided on one side of the upper end of the connecting rod, and the upper end surface of the rotating block is fixedly connected to a load-bearing plate.

[0009] Preferably, a spring 1 is fixedly connected to the lower end of the ramp block, and one end of the spring 1 away from the ramp block is fixedly connected to one side of the inner cavity of the latch rod.

[0010] Preferably, a pull rod is fixedly connected to one side of the inclined surface block, the pull rod is plugged into and slidably connected to the bottom of the latch rod, and the lower end of the pull rod is fixedly connected to a pull block.

[0011] Preferably, through holes 2 are provided on both sides of the upper end of the lifting beam, a shift plate is fixedly connected to one side of the latch rod, the shift plate passes through and is slidably connected to the through hole 2, a spring 2 is fixedly connected to one side of the shift plate, and the end of the spring 2 away from the shift plate is fixedly connected to the wall of the through hole 2.

[0012] Preferably, a pressure rod is fixedly connected to one side of the connecting plate, and a pressure sensor is fixedly connected to one side of the bottom of the inner cavity of the lifting beam. When the pressure rod moves downward, its end will contact the pressure sensor.

[0013] Preferably, one side of the upper end of the connecting rod is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to one side of the rotating block.

[0014] Preferably, a plurality of rotating rollers are rotatably arranged on the upper side of the load-bearing plate, a plurality of push blocks are radially distributed and slidably connected to the rotating rollers, a motor 1 is fixedly connected to one side of the load-bearing plate, and an output end of the motor 1 is fixedly connected to 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 pushing block, and one end of the spring three away from the pushing block is fixedly connected to the fixed roller.

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

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

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The tower crane standard section jacking anti-detachment control device described in the present invention moves the dial plate to retract the latch rod into the inner cavity of the jacking beam, and then the latch rods on both sides of the jacking beam are aligned with the climbing holes opened in the tower crane standard section, and then the dial plate is released to reset the latch rod under the action of spring 2, and the latch rod is inserted into the climbing hole. At the same time, the inclined surface block will move downward due to its inclined surface contacting the outer side of the climbing hole, and retract into the inner cavity of the latch rod. When the inclined surface block enters the climbing hole, it will reset under the action of spring 1 and be inserted into the jack on the other side of the climbing hole again, so that the jacking beam and the standard section are firmly connected, making it difficult for the jacking beam to detach, thereby reducing the probability of accidents when installing or disassembling the standard section of the tower crane.

[0020] 2. The tower crane standard section lifting anti-slip control device described in the present invention utilizes a foreign matter removal component. When a foreign matter moves above the lifting beam, the pressure rod will contact the pressure sensor. When the pressure sensor detects a pressure signal, the motor 2 drives the load-bearing plate to rotate and tilt it. Then, the foreign matter attached to the load-bearing plate will slide off the load-bearing plate, thereby realizing the removal of foreign matter above the load-bearing plate and preventing debris, parts and other residues from being attached to the lifting beam due to wind, personnel activities or equipment movement, which would increase the weight of the lifting beam and affect the stability of the overall structure, or even cause the lifting mechanism to overload and cause a safety accident. Moreover, when the load-bearing plate is tilted, multiple rotating rollers rotate at the same time. When the rotating rollers rotate, friction is formed between the rotating rollers and the surface of the foreign matter to promote the falling of the foreign matter. At the same time, when the rotating rollers rotate, the push blocks on their surfaces will continuously push the foreign matter, further promoting the removal of the foreign matter. The cam is pressed against the outer shell of the bearing plate and the outer shell of the bearing plate is pressed against the outer shell of the bearing plate, and the cam ... BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0025] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

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

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

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

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

[0030] In the figure: 1. Lifting beam; 2. Load-bearing plate; 3. Rotating roller; 4. Motor 1; 5. Latch rod; 6. Inclined block; 7. Spring damper; 8. Pressure sensor; 9. Pressure rod; 10. Connecting rod; 11. Blade plate; 12. Motor 2; 13. Spring 1; 14. Pull rod; 15. Spring 2; 16. Motor 3; 17. Threaded rod; 18. Threaded block; 19. Connecting rod; 20. Push block; 21. Connecting plate; 22. Spring 3; 23. Fixed roller; 24. Pull block; 25. Pulley plate; 26. Through hole 1; 27. Through hole 2; 28. Through hole 3; 29. ​​Rotating block; 30. Support block. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figure 1-Figure 8 The present invention provides a technical solution: a tower crane standard section jacking anti-slip control device, comprising a jacking beam 1, two sides of the jacking beam 1 are provided with through holes 3 28, a latch rod 5 is inserted and slidably connected at the through holes 3 28, a ramp block 6 is slidably connected to one side of the upper end of the latch rod 5, and a foreign matter removal component is also provided on the jacking beam 1 to prevent foreign matter from squeezing the jacking beam 1;

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

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

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

[0036] A second through hole 27 is provided on both sides of the upper end of the lifting beam 1, and a dial plate 25 is fixedly connected to one side of the latch rod 5. The dial plate 25 penetrates and is slidably connected to the second through hole 27, and a second spring 15 is fixedly connected to one side of the dial plate 25, and one end of the spring 15 away from the dial plate 25 is fixedly connected to the wall of the second through hole 27.

[0037] Specifically, the dial plate 25 is moved to retract the latch rod 5 into the inner cavity of the jacking beam 1, and then the latch rods 5 on both sides of the jacking beam 1 are aligned with the climbing holes opened in the standard section of the tower crane, and then the dial plate 25 is released to reset the latch rod 5 under the action of the spring 15, and the latch rod 5 is inserted into the climbing hole. At the same time, the inclined surface block 6 will move downward due to its inclined surface contacting the outer side of the climbing hole, and retract into the inner cavity of the latch rod 5. When the inclined surface block 6 enters the interior of the climbing hole, it will be reset again by the spring 13 , and then inserted into the socket on the other side of the climbing hole again, the jacking beam 1 can be firmly connected with the standard section, making it difficult for the jacking beam 1 to be separated, thereby reducing the probability of accidents when installing or disassembling the standard section of the tower crane; when the jacking beam 1 needs to be removed, the pull block 24 is moved downward to lower the pull rod 14 and the inclined block 6, and at the same time, the latch rod 5 is driven to retract into the inner cavity of the jacking beam 1, so that the jacking beam 1 can be removed.

[0038] In this embodiment, Figure 1-Figure 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] One side of the upper end of the connecting rod 10 is fixedly connected to the motor 2 12 , and the output end of the motor 2 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, and a plurality of push blocks 20 are radially distributed and slidably connected to the rotating rollers 3. A motor 4 is fixedly connected to one side of the load-bearing plate 2, and the output end of the motor 4 is fixedly connected to one end of the rotating roller 3.

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

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

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

[0044] Specifically, when the existing tower crane lifting beam anti-detachment device is in use, various residues may be generated during the construction process, such as building material fragments, parts, etc. These residues may be attached to the lifting beam 1 due to wind, personnel activities or equipment movement, thereby causing the weight of the lifting beam 1 to increase. If the weight increases, it will not only exceed the originally designed load-bearing range, thereby affecting the stability of the overall structure, but also cause the lifting mechanism to be overloaded, and even cause a safety accident;

[0045] Therefore, in order to solve the above problems, when the present embodiment is in use, since the load-bearing plate 2 is arranged above the lifting beam 1, when a foreign object moves above the lifting beam 1, it will first move onto the load-bearing plate 2, and when there is no foreign object on the load-bearing plate 2, the spring damper 7 is in a normal state, and the pressure rod 9 is not in contact with the pressure sensor 8. When a foreign object is above the load-bearing plate 2, the load-bearing plate 2 will press the spring damper 7 downward due to the increase in gravity, causing it to deform, and the pressure rod 9 will contact with the pressure sensor 8. When the pressure sensor 8 detects a pressure signal, the motor 2 12 drives the load-bearing plate 2 to rotate and tilt it, and the foreign object attached to the load-bearing plate 2 will slide off the load-bearing plate 2, thereby realizing the removal of foreign objects above the load-bearing plate 2, and avoiding the attachment of building material fragments, parts and other residues to the lifting beam 1 due to wind, personnel activities or equipment movement, resulting in an increase in the weight of the lifting beam 1, affecting the stability of the overall structure, and even causing an overload of the lifting mechanism, causing a safety accident.

[0046] Although the above method can make foreign objects slide off the load-bearing plate 2, in some cases, the adhesion between the foreign objects and the load-bearing plate 2 is strong, and the foreign objects may be entangled on the load-bearing plate 2. It is difficult to make them fall smoothly by just tilting the load-bearing plate 2, which causes the foreign objects to always adhere to the load-bearing plate 2, and also affects the use of the lifting beam 1. Therefore, in order to avoid this situation, when the load-bearing plate 2 is tilted, the motor 4 is also started, driving multiple 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 objects, promoting the falling of the foreign objects. At the same time, when the rotating rollers 3 rotate, the push blocks 20 on their surface will continuously push the foreign objects, further promoting the detachment of the foreign objects. At the same time, the push blocks 20 will continuously contact the outer shell of the load-bearing plate 2, and because one side of the push block 20 is an inclined surface, the push block 20 will retract into the outer shell when it contacts the outer shell of the load-bearing plate 2. By rotating the inner cavity of the roller 3, no foreign matter will be drawn into the inner cavity of the load-bearing plate 2. Moreover, when the push block 20 is moved out of the inner cavity of the load-bearing plate 2, the push block 20 will vibrate due to the spring three 22, thereby promoting the falling of foreign matter by means of vibration. Moreover, when the motor three 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 blade plates 11 on both sides to slide in different directions at the same time, thereby cutting the foreign matter wrapped around the load-bearing plate 2. Thus, through the above-mentioned method, a multi-directional pushing and cutting effect can be achieved for foreign matter with strong adhesion, thereby avoiding the situation that the foreign matter has strong adhesion to the load-bearing plate 2, and the foreign matter may be wrapped around the load-bearing plate 2, and it is difficult to make it fall smoothly only by the inclination of the load-bearing plate 2, resulting in the foreign matter always being attached to the load-bearing plate 2, which also affects the normal use of the lifting beam 1.

[0047] Working principle: Move the dial plate 25 to retract the latch rod 5 into the inner cavity of the jacking beam 1, then align the latch rods 5 on both sides of the jacking beam 1 with the climbing holes opened in the standard section of the tower crane, and then release the dial plate 25 to reset the latch rod 5 under the action of the spring 15, and insert the latch rod 5 into the climbing hole. At the same time, the inclined surface block 6 will move downward due to its inclined surface contacting the outer side of the climbing hole, and retract into the inner cavity of the latch rod 5. When the inclined surface block 6 enters the climbing hole, it will be reset under the action of the spring 15. 13 is reset under the action of the lifting beam 1, and is inserted into the socket on the other side of the climbing hole again, so that the lifting beam 1 and the standard section are firmly connected, making it difficult for the lifting beam 1 to be separated, thereby reducing the probability of accidents when installing or removing the standard section of the tower crane; when it is necessary to remove the lifting beam 1, the pull block 24 is moved downward to lower the pull rod 14 and the inclined block 6, and at the same time, the latch rod 5 is driven to retract into the inner cavity of the lifting beam 1, and the lifting beam 1 can be removed. When there is no foreign matter on the load-bearing plate 2, the spring damper 7 is in a normal state, and the pressure rod 9 is not in contact with the pressure sensor 8. When there is a foreign matter on the load-bearing plate 2, the load-bearing plate 2 will press the spring damper 7 downward due to the increase in gravity, causing it to deform, and the pressure rod 9 will contact with the pressure sensor 8. When the pressure sensor 8 detects a pressure signal, the motor 2 12 drives the load-bearing plate 2 to rotate and tilt it, so that the foreign matter attached to the load-bearing plate 2 will slide off the load-bearing plate 2, thereby realizing the removal of foreign matter above the load-bearing plate 2, and avoiding the attachment of building material fragments, parts and other residues to the jacking beam 1 due to wind, personnel activities or equipment movement, resulting in an increase in the weight of the jacking beam 1, affecting the stability of the overall structure, and even causing the jacking mechanism to be overloaded, causing a safety accident.Although the above method can make foreign objects slide off the load-bearing plate 2, in some cases, the adhesion between the foreign objects and the load-bearing plate 2 is strong, and the foreign objects may be entangled on the load-bearing plate 2. It is difficult to make them fall smoothly by just tilting the load-bearing plate 2, which causes the foreign objects to always adhere to the load-bearing plate 2, and also affects the use of the lifting beam 1. Therefore, in order to avoid this situation, when the load-bearing plate 2 is tilted, the motor 4 is also started, driving multiple 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 objects, promoting the falling of the foreign objects. At the same time, when the rotating rollers 3 rotate, the push blocks 20 on their surface will continuously push the foreign objects, further promoting the detachment of the foreign objects. At the same time, the push blocks 20 will continuously contact the outer shell of the load-bearing plate 2, and because one side of the push block 20 is an inclined surface, the push block 20 will retract into the outer shell when it contacts the outer shell of the load-bearing plate 2. The inner cavity of the rotating roller 3 will not cause foreign matter to be drawn into the inner cavity of the load-bearing plate 2. Moreover, when the push block 20 is moved out of the inner cavity of the load-bearing plate 2, the push block 20 will vibrate due to the spring three 22, and the vibration will promote the falling of foreign matter. Moreover, when the motor three 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 blade plates 11 on both sides to slide in different directions at the same time, and cuts the foreign matter wrapped around the load-bearing plate 2. Thus, through the above method, the foreign matter with strong adhesion can be pushed and cut in multiple directions, thereby avoiding the situation that the foreign matter has strong adhesion to the load-bearing plate 2, and the foreign matter may be wrapped around the load-bearing plate 2, and it is difficult to make it fall smoothly only by the inclination of the load-bearing plate 2, resulting in the foreign matter always being attached to the load-bearing plate 2, which also affects the normal use of the lifting beam 1. ;

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tower crane standard section jacking anti-drop control device, comprising a jacking beam (1), characterized in that: Through holes (28) are provided on both sides of the lifting beam (1), a latch rod (5) is inserted and slidably connected to the through holes (28), a ramp block (6) is slidably connected to one side of the upper end of the latch rod (5), and a foreign matter removal component is also provided on the lifting beam (1) to prevent foreign matter from squeezing the lifting beam (1); The foreign body removal assembly comprises a spring damper (7) fixedly connected to one side of the bottom of the inner cavity of the lifting beam (1); the piston end of the spring damper (7) is fixedly connected to a connecting plate (21); the upper end surface of the connecting plate (21) is fixedly connected to a connecting rod (10); the connecting rod (10) passes through a through hole (26) in the middle of the upper end of the lifting beam (1); a rotating block (29) is rotatably provided on one side of the upper end of the connecting rod (10); and the upper end surface of the rotating block (29) is fixedly connected to a load-bearing plate (2).

2. A tower crane standard section jacking anti-drop control device according to claim 1, characterized in that: The lower end of the inclined surface block (6) is fixedly connected to a spring 1 (13), and one end of the spring 1 (13) away from the inclined surface block (6) is fixedly connected to one side of the inner cavity of the latch rod (5).

3. A tower crane standard section jacking anti-drop control device according to claim 2, characterized in that: A pull rod (14) is fixedly connected to one side of the inclined surface block (6), the pull rod (14) is plugged into and slidably connected to the bottom of the latch rod (5), and a pull block (24) is fixedly connected to the lower end of the pull rod (14).

4. A tower crane standard section jacking anti-drop control device according to claim 1, characterized in that: A second through hole (27) is provided on both sides of the upper end of the lifting crossbeam (1); a pull plate (25) is fixedly connected to one side of the latch rod (5); the pull plate (25) penetrates through the second through hole (27) and is slidably connected; a second spring (15) is fixedly connected to one side of the pull plate (25); an end of the second spring (15) away from the pull plate (25) is fixedly connected to the hole wall of the second through hole (27).

5. The tower crane standard section lifting anti-drop control device according to claim 1 is characterized in that: 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).

6. A tower crane standard section jacking anti-drop control device according to claim 1, characterized in that: One side of the upper end of the connecting rod (10) is fixedly connected to a second motor (12), and the output end of the second motor (12) is fixedly connected to one side of the rotating block (29).

7. The tower crane standard section jacking anti-drop control device according to claim 1 is characterized in that: 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 1 (4) is fixedly connected to one side of the load-bearing plate (2), and an output end of the motor 1 (4) is fixedly connected to one end of the rotating rollers (3).

8. A tower crane standard section jacking anti-drop control device according to claim 7, characterized in that: A fixed roller (23) is fixedly connected to one side of the inner cavity of the rotating roller (3), a spring three (22) is fixedly connected to one side of the pushing block (20), and one end of the spring three (22) away from the pushing block (20) is fixedly connected to the fixed roller (23).

9. The tower crane standard section jacking anti-drop control device according to claim 1, characterized in that: Both sides of the inner cavity of the load-bearing plate (2) are slidably connected to a blade plate (11) via a sliding groove, a connecting rod (19) is rotatably provided at one end of the blade plate (11), and a threaded block (18) is rotatably provided at one end of the connecting rod (19) away from the blade plate (11).

10. A tower crane standard section jacking anti-drop control device according to claim 9, characterized in that: One side of the threaded block (18) is threadedly connected to a threaded rod (17), the lower end of the threaded rod (17) is rotatably connected to a support block (30), the support block (30) is fixedly connected to the load-bearing plate (2), one side of the lower end of the load-bearing plate (2) is fixedly connected to a motor three (16), and the output end of the motor three (16) is fixedly connected to one end of the threaded rod (17).

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