Safety early warning device for tower crane inclination

Abstract

The invention relates to the technical field of tower crane safety pre-warning devices, in particular to a safety pre-warning device for tower crane inclination, which comprises a cross-shaped supporting seat, the four ends of the cross-shaped supporting seat are provided with deviation rectifying mechanisms, each deviation rectifying mechanism comprises two long strip blocks, the side surfaces of the two long strip blocks are provided with first limiting grooves with corresponding positions, and the first limiting grooves are connected with the cross-shaped supporting seat. A round rod is inserted between the two first limiting grooves, the surface of the round rod is movably sleeved with a movable pipe, the two sides of the movable pipe are provided with a second contact sensor and a first contact sensor respectively, and the second contact sensor and the first contact sensor are connected with an audible and visual alarm through a controller. According to the scheme, the positioning and leveling mechanisms are arranged at the bottoms of the four ends of the cross-shaped supporting seat, so that the situation that the cross-shaped supporting seat is synchronously inclined along with the tower crane due to settlement of a tower crane foundation pit is avoided, deviation correction operation after the tower crane is greatly inclined is facilitated, and the deviation correction accuracy of the tower crane is improved.

Description

Technical Field

[0001] The invention relates to the technical field of safety warning devices for tower cranes, and in particular to a safety warning device for tower crane tilting. Background Art

[0002] The reason for the tilt of the tower crane is usually the uneven settlement of the tower crane foundation pit. Therefore, in order to monitor the tilt of the tower, sensors are usually installed at the four feet of the tower crane. When the tower tilts, the data detected by the sensor is fed back to the staff to complete the early warning of the tilt of the tower crane. Although this method has a warning effect, it cannot correct the tower crane in time.

[0003] In order to solve the problem that the tower crane cannot be corrected in time when it is tilted, the inclination angle of the tower crane is measured by a laser or radar rangefinder, and then a signal is sent to the control system. The control system controls the actuator to adjust the inclination of the tower body. However, the existing actuators are usually arranged at the four feet of the tower crane. When the settlement of the foundation pit is small, the height difference between the multiple actuators is not large. The actuators at the four feet of the tower crane can also automatically correct the tower body. When the settlement of the foundation pit is large, the heights of the actuators are uneven. At this time, the inclination angle of the tower crane cannot be effectively corrected. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a safety warning device for tower crane tilting.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a safety warning device for the inclination of a tower crane, comprising a cross support seat, wherein the four ends of the cross support seat are equipped with a correction mechanism, wherein the correction mechanism comprises two long blocks, wherein the sides of the two long blocks are provided with first limit grooves corresponding to the positions, a round rod is inserted between the two first limit grooves, a movable tube is movably sleeved on the surface of the round rod, a second limit plate is movably connected to the upper part of the movable tube, an electric cylinder is provided on one side of the movable tube, a movable end of the electric cylinder is movably connected to the movable tube, a second contact sensor and a first contact sensor are respectively provided on both sides of the movable tube, and the second contact sensor and the first contact sensor are connected to the sound and light alarm through a controller;

[0006] The bottom of the four ends of the cross support seat are all equipped with positioning and leveling mechanisms. The positioning and leveling mechanism includes a second connecting block, the second connecting block is installed under the cross support seat, a movable nut is installed through the surface of the second connecting block, and the surfaces of the movable nut are sleeved with limiting rings, and the two limiting rings are respectively in contact with the top and bottom of the second connecting block, and a screw rod is installed on the internal thread of the movable nut, and the top of the screw rod is in contact with the bottom of the cross support seat, and a positioning plug rod is installed on the bottom of the screw rod, and a fixing plate is provided at the bottom end of the screw rod, and a sliding groove is opened on the side of the fixing plate, and a second fixing rod is installed at the bottom of the second connecting block, and the bottom end of the second fixing rod extends into the sliding groove, and a driving motor is installed on the side of the second fixing rod, and a gear is fixedly sleeved on the movable end of the driving motor and the surface of the movable nut, and the two gears are meshed, and inclination sensors are installed at the bottom of the four ends of the cross support seat.

[0007] Preferably, a movable rod is installed at one end of the second contact sensor, and a movable sleeve on the surface of the movable rod is provided with a first fixed block, one end of the first fixed block is installed on the side of the long strip, and a second baffle is installed at the other end of the movable rod, and a movable sleeve on the surface of the movable rod is provided with a first tension spring, and both ends of the first tension spring are respectively connected to the first fixed block and the second baffle.

[0008] Preferably, a positioning block is installed at one end of the first contact sensor, and one end of the positioning block is installed on the top of the cross support seat.

[0009] Preferably, a pin is installed at the movable end of the electric cylinder, a third connecting block is movably sleeved on the surface of the pin, first connecting rods are installed at both ends of the third connecting block, movable blocks are installed at one end of two of the first connecting rods, and the side surfaces of the movable blocks are sleeved on the surface of the movable tube.

[0010] Preferably, ball grooves are installed on the outer surface of the movable tube and the side surface of the second limiting plate, movable balls are installed inside the two ball grooves, and a first fixing rod is connected between the surfaces of the two movable balls.

[0011] Preferably, the tops of the two long blocks are provided with a second limit groove, the second limit groove is connected to the first limit groove, both ends of the round rod are movably sleeved with concave parts, the tops of the two concave parts extend from the second limit groove to above it, the tops of the two concave parts are installed with a first mounting block, the sides of the first mounting blocks are installed with push rods, one ends of the two push rods are movably sleeved with mounting tubes, one ends of the two mounting tubes are movably sleeved with a second mounting block, the bottom ends of the two second mounting blocks are respectively installed on the tops of the two long blocks, one ends of the two mounting tubes are installed with a first limit plate, the tops of the two first limit plates extend to the sides of the second limit plates, and the bottom ends of the two first limit plates are connected to the top of the cross support seat.

[0012] Preferably, a mounting groove is formed at one end of the mounting tube, a limiting block is installed at one end of the push rod, and one end of the limiting block extends into the mounting groove.

[0013] Preferably, a fourth fixed block is installed at the bottom end of the first limiting plate, a fixed plug rod is installed through the surface of the fourth fixed block, an iron metal block is installed on the top of the fixed plug rod, a second tension spring is movably sleeved on the surface of the fixed plug rod, both ends of the second tension spring are respectively connected to the iron metal block and the fourth fixed block, an electromagnet is provided above the iron metal block, a socket is opened on the top of the cross support seat, and the bottom end of the fixed plug rod is inserted into the socket.

[0014] Preferably, second fixing blocks are installed on two symmetrical sides of the second connecting block, third fixing blocks are installed on two symmetrical sides of the cross support seat, and a limiting rod is installed on the top of the second fixing block, and the top end of the limiting rod passes through the surface of the third fixing block and extends above it.

[0015] Preferably, the controller is a PLC controller, and the inclination sensor is connected to the controller via a wire.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This scheme sets up a positioning and leveling mechanism at the bottom of the four ends of the cross support seat. The positioning and leveling mechanism controls the four positioning rods to be inserted into the soil through the cooperation of the driving motor and the threaded linear transmission mechanism, so as to fix the position of the cross support seat. At the same time, the horizontal state of the cross support seat is monitored by four inclination sensors, so that the position of the cross support seat can be adjusted to a horizontal state through the driving motor and the threaded linear transmission mechanism, so as to prevent the cross support seat from tilting synchronously with the tower crane due to the settlement of the tower crane foundation pit, facilitate the correction operation of the tower crane after a large tilt, and improve the accuracy of the tower crane correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric diagram of a safety warning device for tower crane tilting of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection structure of an electric cylinder and a cross support seat of a safety warning device for tower crane tilting of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection structure of an electric cylinder and a movable block of a safety warning device for tower crane tilting of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection structure of the ball slot and the movable ball of a safety warning device for the tilting of a tower crane according to the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure of a movable tube, a first contact sensor and a second contact sensor of a safety warning device for tower crane tilting of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection structure of a round rod and two first mounting blocks of a safety warning device for tower crane tilting of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection structure of the first limit plate, the electromagnet and the fixed plug rod of a safety warning device for the tilting of a tower crane according to the present invention;

[0025] Figure 8 It is a schematic diagram of the connection structure of the installation pipe and the push rod of a safety warning device for the tilting of a tower crane according to the present invention;

[0026] Fig. 9 A system block diagram of a safety warning device for tower crane tilting according to the present invention;

[0027] Fig.10 It is a schematic diagram of the connection between the present invention and the tower crane.

[0028] In the figure: ball groove 1, electric cylinder 2, first connecting rod 3, inclination sensor 4, first fixed block 5, movable nut 6, gear 7, drive motor 8, positioning rod 9, fixed plate 10, second fixed block 11, limiting ring 12, third fixed block 13, movable block 14, movable tube 15, second limiting plate 16, first fixed rod 17, long block 18, limiting rod 19, first limiting groove 20, first mounting block 21, second limiting groove 22, second connecting block 23, second fixed rod 24, first Limiting plate 25, second mounting block 26, mounting tube 27, push rod 28, screw rod 29, cross support seat 30, limiting block 31, fourth fixed block 32, pin shaft 33, third connecting block 34, round rod 35, movable ball 36, fixed plug rod 37, first tension spring 38, second baffle 39, movable rod 40, second contact sensor 41, first contact sensor 42, positioning block 43, concave part 44, electromagnet 45, iron metal block 46, second tension spring 47, mounting groove 48. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-10A safety warning device for the tilting of a tower crane shown in the figure comprises a cross support seat 30, and the four ends of the cross support seat 30 are all equipped with a correction mechanism, the correction mechanism comprises two long blocks 18, and the sides of the two long blocks 18 are each provided with a first limiting groove 20 corresponding to the position, and a round rod 35 is inserted between the two first limiting grooves 20, and a movable tube 15 is movably sleeved on the surface of the round rod 35, and a second limiting plate 16 is movably connected to the upper part of the movable tube 15, and an electric cylinder 2 is provided on one side of the movable tube 15, and the movable end of the electric cylinder 2 is movably connected to the movable tube 15, and the movable ends of the four electric cylinders 2 are telescopic to drive the four second limiting plates 16 to respectively press against the four sides of the tower body. When the tower body tilts, the tower body applies pressure to the second limiting plates 16 in the tilting direction, and the second limiting plates 16 produce displacement and angle changes, so as to prevent the tower body from tilting. The movable tube 15 is driven to move. After moving, the movable tube 15 first moves away from the first contact sensor 42 and then contacts the second contact sensor 41. The second contact sensor 41 feeds back a signal to the PLC controller. The PLC controller controls the movable end of the electric cylinder 2 to retract. The electric cylinder 2 pulls the movable tube 15 to move in the opposite direction. The movable tube 15 first moves away from the second contact sensor 41 and then contacts the first contact sensor 42. The first contact sensor 42 feeds back a signal to the PLC controller. The PLC controller controls the electric cylinder 2 to stop working. Since the position of the first contact sensor 42 is fixed and when the tower body is in a vertical state, the movable tube 15 contacts the first contact sensor 42. Therefore, during the deviation correction process of the tower body, when the movable tube 15 is reset and contacts the first contact sensor 42, the tower body can be corrected at this time.

[0031] A second contact sensor 41 and a first contact sensor 42 are respectively provided on both sides of the movable tube 15. The second contact sensor 41 and the first contact sensor 42 are connected to the sound and light alarm through a controller. The controller is a PLC controller. The inclination sensor 4 is connected to the controller through a wire. The PLC controller is also connected to the electric cylinder 2, the drive motor 8 and the electromagnet 45 through wires, so that the device has the ability to work automatically. The sound and light alarm is used to emit a warning sound when the movable tube 15 contacts the second contact sensor 41, so as to remind the staff to stop the tower crane operation and take shelter. The PLC controller can also feed back the signal of the second contact sensor 41 to the remote data terminal through the wireless module for storage, so as to facilitate the recording of the tower inclination data.

[0032] The bottom of the four ends of the cross support seat 30 are all equipped with a positioning and leveling mechanism, which includes a second connecting block 23, which is installed below the cross support seat 30. A movable nut 6 is installed on the surface of the second connecting block 23, and a limiting ring 12 is sleeved on the surface of the movable nut 6. The two limiting rings 12 are respectively in contact with the top and bottom of the second connecting block 23. A screw rod 29 is installed on the internal thread of the movable nut 6. The top of the screw rod 29 is in contact with the bottom of the cross support seat 30, and a positioning rod 9 is installed on the bottom of the screw rod 29. A fixing plate 10 is provided at the bottom end of the second connecting block 23, a slide groove is provided on the side of the fixing plate 10, a second fixing rod 24 is installed at the bottom of the second connecting block 23, the bottom end of the second fixing rod 24 extends into the slide groove, a driving motor 8 is installed on the side of the second fixing rod 24, a gear 7 is fixedly sleeved on the movable end of the driving motor 8 and the surface of the movable nut 6, the two gears 7 are meshed, and the bottom of the four ends of the cross support seat 30 are installed with an inclination sensor 4. After the tower crane is assembled, the cross support seat 30 in the split state is welded to the bottom of the tower crane, and then synchronous control or sequential control is performed. Four driving motors 8 are working, and the movable end of the driving motor 8 drives the movable nut 6 to rotate through two gears 7, and the movable nut 6 drives the two limiting rings 12 to rotate synchronously. The two limiting rings 12 rotate on the second connecting block 23 to improve the stability of the movable nut 6 in the rotating state. Since the screw rod 29 is subjected to the torque force of the movable nut 6 and then transmitted to the fixed plate 10, the fixed plate 10 is limited by the second fixed rod 24 due to its own sliding groove, so that the screw rod 29 cannot rotate in the torque direction, and therefore the continuous rotation of the movable nut 6, according to the linear transmission of the thread As can be seen from the principle, the movable nut 6 drives the screw rod 29 to move in the vertical direction during the rotation process. At this time, the position of the cross support seat 30 needs to be fixed. The screw rod 29 drives the positioning rod 9 to be inserted into the soil. After all four positioning rods 9 are inserted into the soil, the position of the cross support seat 30 is fixed. Then, according to the signal feedback from the four inclination sensors 4, the positioning rod 9 is adjusted to move upward or downward to adjust the cross support seat 30 to a horizontal state. It can also adjust itself as the tower crane foundation pit settles, which facilitates the tilt correction operation of the tower crane.

[0033] A movable rod 40 is installed at one end of the second contact sensor 41, and a first fixed block 5 is movably sleeved on the surface of the movable rod 40. One end of the first fixed block 5 is installed on the side of the long block 18, and a second baffle 39 is installed on the other end of the movable rod 40. A first tension spring 38 is movably sleeved on the surface of the movable rod 40, and the two ends of the first tension spring 38 are respectively connected to the first fixed block 5 and the second baffle 39. As the movable tube 15 moves toward the second contact sensor 41 and is released, if the tower body continues to tilt, it is convenient for the movable tube 15 to continue to push the second contact sensor 41 to continue to move, and the second contact sensor 41 pushes the movable rod 40 to move in the first fixed block 5, and at the same time, the movable rod 40 The first tension spring 38 is pulled by the second baffle 39, so that the second contact sensor 41 can continue to move after being subjected to force, and the second contact sensor 41 is prevented from being pressed by the movable tube 15, which protects the second contact sensor 41. After the movable tube 15 is reset, the movable tube 15 is away from the second contact sensor 41, and the first tension spring 38 is reset without being subjected to external force, so that the first tension spring 38 drives the second contact sensor 41 to reset. The first tension spring 38 is replaced regularly to avoid the reduction of its elastic strength after long-term use, which leads to a shortening of the reset stroke of the second contact sensor 41. When the tower body is tilted, the second contact sensor 41 can be stably in contact with the movable tube 15.

[0034] A positioning block 43 is installed at one end of the first contact sensor 42, and one end of the positioning block 43 is installed on the top of the cross support seat 30. The positioning block 43 is used to fix the position of the first contact sensor 42, and when the tower body is in a vertical state, the outer surface of the movable tube 15 contacts the first contact sensor 42. When the tower body is tilted, the movable tube 15 is away from the first contact sensor 42. When the tower body is corrected, the tower body can be straightened when the movable tube 15 contacts the first contact sensor 42, which facilitates the correction operation of the tower body.

[0035] The movable end of the electric cylinder 2 is equipped with a pin shaft 33, and the surface of the pin shaft 33 is movably sleeved with a third connecting block 34, and the first connecting rods 3 are installed at both ends of the third connecting block 34, and one end of the two first connecting rods 3 is installed with a movable block 14, and the side surfaces of the movable block 14 are sleeved on the surface of the movable tube 15. During the tower body correction operation, the movable end of the electric cylinder 2 contracts and pulls the pin shaft 33, and the pin shaft 33 pulls the third connecting block 34, and the third connecting block 34 pulls the two first connecting rods 3, and the two first connecting rods 3 pull the two movable blocks 14. Long holes are provided in the two movable blocks 14 to facilitate the movable block 14 to pull the movable tube 15 to move horizontally. During the process, since the tower body correction will drive the position of the first fixed rod 17 to move, the first fixed rod 17 will drive the movable tube 15 to move in a circular arc on the round rod 35, which facilitates the movable tube 15 to push the second limit plate 16 to be against the tower body.

[0036] Ball grooves 1 are installed on the outer surface of the movable tube 15 and the side of the second limit plate 16. Movable balls 36 are installed inside the two ball grooves 1. A first fixed rod 17 is connected between the surfaces of the two movable balls 36. The movable balls 36 can move in different directions at the opening of the ball grooves 1, so as to adapt to the tower crane tilting in different directions due to foundation pit settlement, which is convenient for correcting the tower crane tilted in different directions.

[0037] The tops of the two long strips 18 are each provided with a second limiting groove 22, which is connected to the first limiting groove 20. Both ends of the round rod 35 are movably sleeved with a concave member 44, and the tops of the two concave members 44 extend from the second limiting groove 22 to the top thereof. The tops of the two concave members 44 are each installed with a first mounting block 21, and the sides of the first mounting block 21 are each installed with a push rod 28, and one end of the two push rods 28 is movably sleeved with a mounting tube 27, and one end of the two mounting tubes 27 is movably sleeved with The second mounting block 26, the bottom ends of the two second mounting blocks 26 are respectively mounted on the tops of the two long strips 18, one end of the two mounting tubes 27 are both mounted with the first limit plate 25, the top ends of the two first limit plates 25 extend to the side of the second limit plate 16, the bottom ends of the two first limit plates 25 are connected to the top of the cross support seat 30, one end of the mounting tube 27 is provided with a mounting groove 48, one end of the push rod 28 is mounted with a limit block 31, one end of the limit block 31 extends into the mounting groove 48, the second The limiting groove 22 can be used for the movement of the concave member 44, and the concave member 44 moves synchronously with the round rod 35. After the concave member 44 is subjected to force, it drives the first mounting block 21 to move, and the first mounting block 21 pushes the push rod 28 to move. The push rod 28 drives the limiting block 31 to slide in the mounting groove 48. After the limiting block 31 abuts against the inner wall of the mounting groove 48, it pushes the mounting tube 27 to move. After the mounting tube 27 is subjected to force, it moves in the second mounting block 26. At the same time, the mounting tube 27 pushes the first limiting plate 25 against the side of the second limiting plate 16. The compressive strength of the second limit plate 16 is improved, and it is used for protective operations after the tower body is corrected. During the tower body correction process, since the travel distance between the first limit plate 25 and the second limit plate 16 is greater than the moving distance of the second limit plate 16 for correcting the tower body, the installation groove 48 and the limit block 31 are provided to shorten the moving travel of the installation tube 27, ensuring that during the tower body correction process, the second limit plate 16 is against the tower body, and the first limit plate 25 can normally be against the side of the second limit plate 16.

[0038] A fourth fixing block 32 is installed at the bottom end of the first limiting plate 25, a fixing rod 37 is installed through the surface of the fourth fixing block 32, an iron metal block 46 is installed at the top of the fixing rod 37, a second tension spring 47 is movably sleeved on the surface of the fixing rod 37, and the two ends of the second tension spring 47 are respectively connected to the iron metal block 46 and the fourth fixing block 32, an electromagnet 45 is provided above the iron metal block 46, a socket is provided on the top of the cross support seat 30, and the bottom end of the fixing rod 37 is inserted into the socket. In order to further improve the stability of the tower body after the deviation correction, it is also necessary to install an electromagnet 45 on the tower body. After being in a vertical state, the electromagnet 45 is powered off through PLC control. After the electromagnet 45 is powered off, the magnetic force disappears, and the iron metal block 46 attracted by the electromagnet 45 through magnetic force moves downward due to gravity. At the same time, the length of the second tension spring 47 in a stretched state shrinks, which makes it convenient for the iron metal block 46 to drive the fixed plug rod 37 to be inserted into the socket, so as to fix the position of the first limit plate 25, thereby improving the stability of the first limit plate 25 against the side of the second limit plate 16. This method is only suitable for use in windy weather, which is convenient for reinforcing the tower body and improving the stability of the tower body in windy weather.

[0039] The second fixing blocks 11 are installed on the two symmetrical sides of the second connecting block 23, and the third fixing blocks 13 are installed on the two symmetrical sides of the cross support seat 30. A limiting rod 19 is installed on the top of the second fixing block 11. The top of the limiting rod 19 penetrates the surface of the third fixing block 13 and extends above it. The screw rod 29 will drive the cross support seat 30 to move synchronously during the movement in the vertical direction, so that the cross support seat 30 can drive the third fixing block 13 to slide on the limiting rod 19, prevent the cross support seat 30 from shifting in position when it moves under force, and improve the stability of the cross support seat 30 during the horizontal adjustment process.

[0040] Workflow: After the tower crane is assembled, the cross support seat 30 in the split state can be welded and fixed and inserted into the bottom end of the tower body, and then pressed on the top of the cross support seat 30 by means of a counterweight or manual pressure, and then four drive motors 8 are driven, and the drive motor 8 drives the positioning rod 9 to be inserted into the soil by means of a threaded linear transmission. After all four positioning rods 9 are inserted into the soil, the position of the cross support seat 30 is fixed. Then, according to the signal feedback of the four inclination sensors 4, the positioning rod 9 is adjusted to move upward or downward to adjust the cross support seat 30 to a horizontal state, and it can also adjust itself as the tower crane foundation pit settles;

[0041] When the tower body tilts after the cross support seat 30 is adjusted to a horizontal state, the tower body is pressed on a single or two second limit plates 16 according to the tilting direction. After the second limit plates 16 are subjected to force, they tilt synchronously with the tower body. At this time, the second limit plates 16 move on the movable balls 36 through the ball grooves 1. At the same time, the movable balls 36 push the first fixed rod 17, and the first fixed rod 17 moves in another ball groove 1 through another movable ball 36, which facilitates the first fixed rod 17 to push the movable tube 15 to move. After the movable tube 15 is subjected to force, it moves in the first limit plate through the round rod 35. The movable tube 15 slides in the groove, as the movable tube 15 moves and contacts the second contact sensor 41, the second contact sensor 41 feeds back a signal to the PLC controller, and the PLC controller controls the movable end of the electric cylinder 2 to retract, and the movable end of the electric cylinder 2 retracts and pulls the pin 33, and the pin 33 pulls the movable tube 15 to move in the opposite direction through the two movable blocks 14, and the movable tube 15 first moves away from the second contact sensor 41, and then contacts the first contact sensor 42, and the work of the electric cylinder 2 is stopped. At this time, the tower body can be straightened, and the deviation correction work of the tower body is completed.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A safety warning device for tower crane tilting, comprising a cross support seat (30), characterized in that: The four ends of the cross support seat (30) are all equipped with a deviation correction mechanism, the deviation correction mechanism comprises two long strips (18), the sides of the two long strips (18) are each provided with a first limiting groove (20) corresponding to the position, a round rod (35) is inserted between the two first limiting grooves (20), a movable tube (15) is movably sleeved on the surface of the round rod (35), a second limiting plate (16) is movably connected to the upper part of the movable tube (15), an electric cylinder (2) is provided on one side of the movable tube (15), the movable end of the electric cylinder (2) and the movable tube (15) are movably connected, a second contact sensor (41) and a first contact sensor (42) are respectively provided on both sides of the movable tube (15), and the second contact sensor (41) and the first contact sensor (42) are connected to the sound and light alarm through a controller; The bottom of the four ends of the cross support seat (30) are all equipped with positioning and leveling mechanisms, and the positioning and leveling mechanisms include a second connecting block (23), and the second connecting block (23) is installed below the cross support seat (30). A movable nut (6) is installed through the surface of the second connecting block (23), and the surface of the movable nut (6) is sleeved with a limiting ring (12). The two limiting rings (12) are respectively in contact with the top and bottom of the second connecting block (23). A screw rod (29) is installed on the internal thread of the movable nut (6), and the top end of the screw rod (29) is in contact with the bottom of the cross support seat (30). A positioning rod (9) is installed at the bottom end of the screw rod (29), a fixing plate (10) is provided at the bottom end of the screw rod (29), a sliding groove is provided on the side of the fixing plate (10), a second fixing rod (24) is installed at the bottom of the second connecting block (23), the bottom end of the second fixing rod (24) extends into the sliding groove, a driving motor (8) is installed on the side of the second fixing rod (24), a gear (7) is fixedly sleeved on the movable end of the driving motor (8) and the surface of the movable nut (6), the two gears (7) are meshed, and the bottom of the four ends of the cross support seat (30) are installed with inclination sensors (4).

2. A safety warning device for tower crane tilting according to claim 1, characterized in that: A movable rod (40) is installed at one end of the second contact sensor (41), and a first fixed block (5) is movably sleeved on the surface of the movable rod (40), one end of the first fixed block (5) is installed on the side of the long block (18), and a second baffle (39) is installed at the other end of the movable rod (40), and a first tension spring (38) is movably sleeved on the surface of the movable rod (40), and two ends of the first tension spring (38) are respectively connected to the first fixed block (5) and the second baffle (39).

3. A safety warning device for tower crane tilting according to claim 1, characterized in that: A positioning block (43) is installed at one end of the first contact sensor (42), and one end of the positioning block (43) is installed on the top of the cross support seat (30).

4. A safety warning device for tower crane tilting according to claim 1, characterized in that: A pin shaft (33) is installed at the movable end of the electric cylinder (2), a third connecting block (34) is movably sleeved on the surface of the pin shaft (33), first connecting rods (3) are installed at both ends of the third connecting block (34), and movable blocks (14) are installed at one end of the two first connecting rods (3), and the side surfaces of the movable blocks (14) are sleeved on the surface of the movable tube (15).

5. The safety warning device for tower crane tilt according to claim 1, characterized in that: The outer surface of the movable tube (15) and the side surface of the second limiting plate (16) are both provided with ball grooves (1), movable balls (36) are both fitted inside the two ball grooves (1), and a first fixing rod (17) is connected between the surfaces of the two movable balls (36).

6. A safety warning device for tower crane tilting according to claim 1, characterized in that: The tops of the two long strips (18) are each provided with a second limiting groove (22), the second limiting groove (22) is connected to the first limiting groove (20), both ends of the round rod (35) are movably sleeved with a concave member (44), the tops of the two concave members (44) extend from the second limiting groove (22) to above it, the tops of the two concave members (44) are each installed with a first mounting block (21), the side surfaces of the first mounting block (21) are each installed with a push rod (28), and the two push rods (28) are One end of each mounting tube (27) is movably sleeved with a mounting tube (27), one end of each mounting tube (27) is movably sleeved with a second mounting block (26), the bottom ends of the two second mounting blocks (26) are respectively mounted on the top of the two long strips (18), one end of each mounting tube (27) is mounted with a first limiting plate (25), the top ends of the two first limiting plates (25) extend to the side of the second limiting plate (16), and the bottom ends of the two first limiting plates (25) are connected to the top of the cross support seat (30).

7. A safety warning device for tower crane tilting according to claim 6, characterized in that: One end of the mounting tube (27) is provided with a mounting groove (48), one end of the push rod (28) is provided with a limit block (31), and one end of the limit block (31) extends into the mounting groove (48).

8. The safety warning device for tower crane tilt according to claim 6, characterized in that: A fourth fixed block (32) is installed at the bottom end of the first limiting plate (25), a fixed rod (37) is installed through the surface of the fourth fixed block (32), an iron metal block (46) is installed at the top of the fixed rod (37), a second tension spring (47) is movably sleeved on the surface of the fixed rod (37), the two ends of the second tension spring (47) are respectively connected to the iron metal block (46) and the fourth fixed block (32), an electromagnet (45) is provided above the iron metal block (46), a socket is opened at the top of the cross support seat (30), and the bottom end of the fixed rod (37) is inserted into the socket.

9. The safety warning device for tower crane tilt according to claim 1, characterized in that: The second connecting block (23) is provided with a second fixing block (11) on two symmetrical sides, the cross supporting seat (30) is provided with a third fixing block (13) on two symmetrical sides, and the top of the second fixing block (11) is provided with a limiting rod (19), the top end of the limiting rod (19) passes through the surface of the third fixing block (13) and extends above it.

10. The safety warning device for tower crane tilt according to claim 1, characterized in that: The controller is a PLC controller, and the inclination sensor (4) is connected to the controller via a wire.

Images