A tower device

Abstract

The application discloses a tower crane device and relates to the technical field of tower cranes, which comprises two tower body mechanisms fixed on a supporting surface, wherein the tower body mechanisms are composed of two tower body bodies and main supporting arms, a sliding supporting arm is further arranged between the two main supporting arms, a luffing vehicle body is arranged on the sliding supporting arm, a supporting panel is installed on the luffing vehicle body, and a pulley mechanism is symmetrically installed on the supporting panel; detection pieces are arranged above the two pulley mechanisms, and the detection pieces are used for preventing the pulley mechanisms from being out of the groove; the tower crane device is used for preventing the steel wire rope from being out of the groove through the rubber rollers at the ends of the detection rods; the driving plate bodies and the arc-shaped blocks are used for enabling the force rods to drive the detection sleeves and the mechanical components thereon to perform directional actions; when the detection rods and the rubber rollers thereon move towards the inside of the detection sleeves and enable the contact rods to touch the button bodies, it is indicated that the steel wire rope on the pulley mechanism is out of the groove.

Description

Technical Field

[0001] This invention relates to the field of tower crane technology, specifically to a tower crane device. Background Technology

[0002] Tower cranes are the most commonly used lifting equipment on construction sites. Generally, tower cranes can be divided into the following parts according to their functions: foundation, tower body, jacking mechanism, slewing mechanism, hoisting mechanism, counterweight boom, lifting jib, trolley, tower top, operator's cab, and luffing mechanism. A foundation is required for the tower crane to be installed on the ground. The tower body is the main body of the crane and is the part that is raised; the jacking mechanism allows the tower crane to be raised. The slewing mechanism keeps the upper part of the tower crane horizontal. The hoisting mechanism is used to lift heavy objects. The counterweight boom maintains torque balance. The lifting jib is generally the part that bears the force when lifting heavy objects. The trolley is used to install pulley blocks, steel cables, and hooks, and is also the part that directly bears the force. Tower cranes can be classified into mobile and fixed types based on whether they have a traveling mechanism. Mobile tower cranes can be further divided into rail-mounted, tire-mounted, truck-mounted, and crawler-mounted types based on the different traveling devices. Fixed tower cranes can be divided into attached self-elevating and internal climbing types based on the different installation locations. During construction, the operator controls the luffing trolley to move above the goods from the cab and, with the help of the lifting equipment, controls the hook to lift the goods. With the help of the slewing mechanism and other equipment, the materials are transported to the designated location. However, in actual operation, the luffing wire rope on the luffing trolley is easily impacted and exerts force on the rope guard plate. After a period of use, the rope guard plate is prone to bending or breaking due to frequent impacts. During subsequent lifting operations, the wire rope is not restrained by the rope guard plate and is prone to jumping out of the pulley groove. If not dealt with in time, the wire rope is prone to breakage, causing the lifted materials to fall from the height. To address this, we propose a tower crane device. Summary of the Invention

[0003] The purpose of this invention is to provide a tower crane device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tower crane device, comprising two tower body mechanisms fixed to a support surface, the two tower body mechanisms being in a parallel state, and each tower body mechanism consisting of two tower body bodies and a main support arm fixedly connected between the two, wherein a sliding support arm is also provided between the two main support arms, and the two ends of the sliding support arm are limited to sliding on the two main support arms, and a luffing car body is provided on the sliding support arm, and the luffing car body is limited to sliding on the sliding support arm, a support panel is installed on the luffing car body, and a pulley mechanism is symmetrically installed on the support panel, wherein a rope stop plate for limiting the wire rope on the pulley mechanism is installed on the support panel; A servo motor is mounted on the support panel, along with a transmission mechanism connected to the output of the servo motor and a rope winding mechanism connected to the transmission mechanism. Detection elements are installed above both pulley mechanisms, and these detection elements are used to perform anti-disengagement detection on the pulley mechanisms. A drive mechanism for controlling the orientation of the detection elements is symmetrically arranged on the support panel, and an output mechanism for controlling the drive mechanism is symmetrically arranged on the transmission mechanism, so that the output mechanism, under the action of the drive mechanism, controls the detection elements to perform anti-disengagement detection on the pulley mechanisms.

[0005] Preferably, the output mechanism includes a transmission shaft symmetrically arranged on the transmission mechanism, and an intermittent gear is mounted on the transmission shaft. The transmission mechanism is also symmetrically mounted with a rotating shaft that is rotatably connected to it from the outside, and a gear body is mounted on the rotating shaft. The gear body is located on the meshing trajectory of the intermittent gear.

[0006] Preferably, the driving mechanism includes a support frame symmetrically arranged on the support panel, and a lead screw rotatably connected to the inner wall of the support frame. The other end of the lead screw is located outside the support frame and connected to the end of a rotating shaft. A driving plate is slidably connected to the inner wall of the support frame and an arc-shaped block is mounted on the lead screw.

[0007] Preferably, the testing component includes a testing sleeve disposed above two pulley mechanisms. A force-bearing rod is installed at one end of the testing sleeve, and the end of the force-bearing rod is located inside the support frame and slides on the arc-shaped block for limitation. Multiple return springs are connected between the testing sleeve and the outer side of the support frame. A movable panel is installed inside the testing sleeve and is slidably connected to its inner wall. A testing rod is installed on one side of the movable panel. The end of the testing rod penetrates the inner wall of the testing sleeve and extends to the outside. A rubber roller is installed at the end of the testing rod and is rotatably connected to it. The rubber roller is located above the pulley mechanism.

[0008] Preferably, a touch rod is installed on the side of the movable panel away from the test rod, a button body is installed inside the test sleeve, and the button body is located on the movement trajectory of the touch rod. A reset spring is also connected between the inner wall of the test sleeve and the movable panel.

[0009] Preferably, an anti-detachment stop bar is provided above the pulley mechanism, wherein the anti-detachment stop bar is located on one side of the support frame, and movable rod frames are installed at both ends of the anti-detachment stop bar. Multiple fixed sleeves are installed on the support panel, and the movable rod frames are located inside the fixed sleeves and are slidably connected to their inner walls. A snap-fit ​​rod frame is installed at one end of the movable rod frame and is rotatably connected to it. The snap-fit ​​rod frame is provided with snap-fit ​​holes, and a circular magnet is installed at the end of the snap-fit ​​rod frame. A sliding column is provided on the snap-fit ​​rod frame.

[0010] Preferably, the fixing sleeve consists of a support area, a snap-fit ​​area, and a connecting rod installed between the two. The snap-fit ​​rod frame is located inside the snap-fit ​​area, and a spiral groove and a sliding groove are provided inside the snap-fit ​​area. The sliding column slides on the spiral groove and the sliding groove for limiting. A spring body is connected between the inner wall of the snap-fit ​​area and the snap-fit ​​rod frame.

[0011] Preferably, a through sleeve is installed on the snap-fit ​​area, wherein a snap-fit ​​column is provided inside the through sleeve, wherein one end of the snap-fit ​​column is located inside the snap-fit ​​area and is in contact with the snap-fit ​​rod frame, and a spring body is connected between the other end of the snap-fit ​​column and the inner wall of the through sleeve.

[0012] Preferably, the end of the spiral groove is in communication with the beginning of the sliding groove, and the end of the sliding groove and the beginning of the spiral groove are on the same horizontal line.

[0013] Preferably, an electromagnet body is installed inside the snap-fit ​​area, and the electromagnet body generates a repulsive force on the circular magnet block when energized, wherein the electromagnet body and the button body are electrically connected.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a testing rod and its end rubber roller to detect the wire rope's derailment. Under the transmission of a drive shaft, intermittent gears, a rotating shaft, and the gear body, a lead screw rotates. Through a drive plate and an arc-shaped block, the force-bearing rod drives the testing sleeve and its mechanical components to perform directional movements. When the testing rod and its rubber roller move into the testing sleeve and the touch rod touches the button body, it indicates that the wire rope on the pulley mechanism has derailed. Therefore, through the structural design of this invention, the derailment of the wire rope can be effectively detected, preventing the wire rope from breaking due to derailment.

[0015] This invention utilizes an anti-derailment bar to temporarily restrain the wire rope instead of a broken or deformed rope-blocking plate, effectively reducing the risk of wire rope breakage during transportation. At the same time, under the action of the spiral groove, sliding groove, locking column, and locking hole, the anti-derailment bar on the moving rod frame restrains the wire rope above the pulley mechanism, ensuring that the rope-blocking plate can be restrained again in the event of breakage or deformation, thereby reducing the wire rope derailment rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main support arm and sliding support arm structure of the present invention; Figure 3 This is a schematic diagram of the variable-amplitude vehicle body structure of the present invention; Figure 4 This is a schematic diagram of the structure of the variable-amplitude vehicle body after partial cutting. Figure 5 This is a schematic diagram of a partial structure of the variable-amplitude vehicle body of the present invention; Figure 6 This is a schematic diagram of the anti-detachment detection structure of the present invention; Figure 7 This is a schematic diagram of the arc-shaped block and the load-bearing rod structure of the present invention; Figure 8 This is a schematic diagram of a partial structure on the support panel of the present invention; Figure 9 This is a partial structural diagram of the present invention; Figure 10 This is a schematic diagram of the partial structural separation of the present invention; Figure 11 This is a schematic diagram showing the separation of a partial internal structure of the fixed sleeve of the present invention.

[0017] In the diagram: 1. Tower body mechanism; 11. Tower body; 12. Main support arm; 2. Sliding support arm; 3. Luffing vehicle body; 4. Support panel; 41. Pulley mechanism; 42. Rope guide plate; 43. Servo motor; 44. Transmission mechanism; 45. Rope winding mechanism; 5. Detection component; 51. Detection sleeve; 52. Force-bearing rod; 53. Return spring one; 54. Moving panel; 55. Detection rod; 56. Rubber roller; 57. Touch rod; 58. Button body; 59. Return spring two; 6. Drive mechanism; 61. Support frame; 62. Lead screw; 63. Drive plate; 64. Arc-shaped block; 7. Output mechanism; 71. Transmission shaft; 72. Intermittent gear; 73. Rotating shaft; 74. Gear body; 8. Anti-disengagement rod; 81. Moving rod frame; 82. Fixed sleeve; 83. Snap-fit ​​rod frame; 84. Snap-fit ​​hole; 85. Circular magnet block; 86. Sliding column; 87. Support area; 88. Snap-fit ​​area; 89. Connecting rod; 9. Spiral groove; 91. Sliding groove; 92. Spring body one; 93. Through sleeve; 94. Snap-fit ​​column; 95. Spring body two; 96. Electromagnet body. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-11 This invention provides a technical solution: a tower crane device. This invention addresses the technical problems in the background art by making corresponding improvements, including two tower body mechanisms 1 fixed to a support surface. The two tower body mechanisms 1 are parallel to each other, and each tower body mechanism 1 consists of two tower body bodies 11 and a main support arm 12 fixedly connected between them. A sliding support arm 2 is also installed between the two main support arms 12, and the two ends of the sliding support arm 2 are limited and slide on the two main support arms 12. A luffing car body 3 is slidably installed on the sliding support arm 2, and the luffing car body 3 is limited and slides on the sliding support arm 2. It should be noted that when the sliding support arm 2 moves on the main support arm 12, it is controlled by an existing winch system, and when the luffing car body 3 moves on the sliding support arm 2, it is also controlled by a winch system. Since the winch system is an existing technology structure, this invention does not describe it in detail. For details, please refer to the appendix. Figure 1 and attached Figure 2To ensure that when workers are lifting materials, the winch system on the tower body 11 controls the sliding support arm 2 to adjust its position on the main support arm 12 (for ease of description, this direction of movement is represented by X), and the winch system on the sliding support arm 2 controls the luffing car body 3 to adjust its position in another direction (for ease of description, this direction of movement is represented by Y, and it is perpendicular to the X direction). A support panel 4 is fixedly installed on the luffing car body 3, and a pulley mechanism 41 is symmetrically installed on the support panel 4. A rope stop plate 42 for limiting the wire rope on the pulley mechanism 41 is fixedly installed on the support panel 4. A servo motor 43 is fixedly installed on the support panel 4, along with a transmission mechanism 44 connected to the output of the servo motor 43 and a rope winding mechanism 45 connected to the transmission mechanism 44. It should be noted that the transmission mechanism 44 consists of a housing and a mounting bracket. The belt drive pulley is installed inside the outer casing. Since the belt drive pulley and the outer casing are existing technologies, they are not described in detail in this invention. Detection elements 5 are provided above each of the two pulley mechanisms 41. The detection elements 5 are used to detect the pulley mechanism 41 to prevent it from derailing. To further explain, the pulley mechanism 41 is an existing technology. When the wire rope derails, it will jump between the two pulleys (the pulley mechanism 41 is composed of multiple pulleys; in this invention, there are two pulleys). That is, the detection element 5 in this invention detects the area between the two pulleys. The support panel 4 is symmetrically provided with a drive mechanism 6 for controlling the directional movement of the detection element 5. The transmission mechanism 44 is symmetrically provided with an output mechanism 7 for controlling the movement of the drive mechanism 6, so that the output mechanism 7, under the action of the drive mechanism 6, controls the detection element 5 to perform the anti-derailment detection action on the pulley mechanism 41. As a further limitation of the present invention, the detection element 5 includes a detection sleeve 51 disposed above the pulley mechanism 41, and a movable panel 54 slidably connected to its inner wall is installed inside the detection sleeve 51. A detection rod 55 is fixedly installed on one side of the movable panel 54, and the end of the detection rod 55 penetrates the inner wall of the detection sleeve 51 and extends to the outside. A rubber roller 56 is rotatably connected to the end of the detection rod 55, and the rubber roller 56 is located above the pulley mechanism 41, that is, between two pulleys (in the groove). A touch rod 57 is fixedly installed on the side of the movable panel 54 away from the test rod 55, and a button body 58 is fixedly installed inside the test sleeve 51, with the button body 58 located on the movement trajectory of the touch rod 57. A return spring 59 is also connected between the inner wall of the test sleeve 51 and the movable panel 54. The drive mechanism 6 includes a support frame 61 fixedly installed on the support panel 4, and a lead screw 62 rotatably connected to the inner wall of the support frame 61 is installed inside the support frame 61. The other end of the lead screw 62 is located on the support frame. Outside the body 61, a drive plate 63 is mounted on the lead screw 62, which is slidably connected to the inner wall of the support frame 61. An arc-shaped block 64 is mounted on the drive plate 63. Further, the arc-shaped block 64 has a height difference between its two ends, and a force-bearing rod 52 is fixedly mounted on one end of the testing sleeve 51. The end of the force-bearing rod 52 is located inside the support frame 61 and slides on the arc-shaped block 64. Multiple return springs 53 are also connected between the testing sleeve 51 and the outer side of the support frame 61. In the initial state, the springs... The rubber roller 56 is located above the pulley mechanism 41, that is, it is not inserted into the groove between the pulleys, and at this time the force-bearing rod 52 is located at one end of the arc-shaped block 64, which is the lowest end of the arc-shaped block 64, that is, the other end is the highest end. It should be noted that the lead screw 62 in this invention is a reciprocating lead screw. When the highest end of the arc-shaped block 64 moves to the end of the force-bearing rod 52, the lead screw 62 continues to rotate, and the drive plate 63 will move in the opposite direction. When the lowest point of the arc-shaped block 64 moves to the end of the force-bearing rod 52, it will move in the forward direction. The output mechanism 7 of this invention includes drive shafts 71 symmetrically mounted on the transmission mechanism 44. Further, the drive shafts 71 are connected to belt drive pulleys inside the transmission mechanism 44. When the servo motor 43 is started, its output end drives the rope winding mechanism 45 and the two drive shafts 71 to rotate through the transmission mechanism 44. An intermittent gear 72 is fixedly mounted on the drive shaft 71. The transmission mechanism 44 also has symmetrically mounted rotating shafts 73 that are rotatably connected to it from the outside. A gear body 74 is fixedly mounted on the rotating shaft 73, and the gear body 74 is located on the meshing trajectory of the intermittent gear 72. Further, one end of the rotating shaft 73 is connected to the outer end of the lead screw 62. Specifically, when the hook needs to be lowered to transport materials, the servo motor 43 starts, and its output end drives the rope winding mechanism 45 and the transmission shaft 71 to rotate through the transmission mechanism 44. During the rotation of the transmission shaft 71, the intermittent gear 72 on it rotates along with it, and during the rotation, the meshing gear body 74 rotates, thereby causing the rotating shaft 73 to drive the lead screw 62 to rotate. Then, the drive plate 63 on the lead screw 62 performs directional limiting movement inside the support frame 61, and the arc-shaped block 64 on the drive plate 63 acts on the end of the force-bearing rod 52. Thus, the end of the force-bearing rod 52 is subjected to force to drive the measuring sleeve 51 to perform directional lowering action. During the lowering process, multiple return springs 53 are in a stretched state. During the movement of the testing sleeve 51, the internal return spring 59 acts on the moving panel 54. The testing rod 55 on the moving panel 54 descends synchronously with the testing sleeve 51. The testing rod 55 and the rubber roller 56 at its end then enter the groove between the pulleys. If the wire rope is dislodged from the groove, it will enter the groove, and the rubber roller 56 will come into contact with and be acted upon by the wire rope. The force exerted by the wire rope on the rubber roller 56 causes the testing rod 55 to drive the moving panel 54 to compress the return spring 59. The touch post on the moving panel 54 touches the button body 58, and the button body 58 sends a signal to the central control. The staff should promptly inspect this part to avoid the wire rope from breaking. Furthermore, an anti-detachment stop bar 8 is provided above the pulley mechanism 41, wherein the anti-detachment stop bar 8 is located on one side of the support frame 61, and movable rod frames 81 are installed at both ends of the anti-detachment stop bar 8. The anti-detachment stop bar 8 and the movable rod frames 81 are rotatably connected. Multiple fixed sleeves 82 are fixedly installed on the support panel 4, that is, fixed sleeves 82 are respectively installed at both ends of the movable rod frames 81. In this invention, there are two movable rod frames 81, and therefore four fixed sleeves 82 are installed on the support panel 4. The fixed sleeves 82 are supported by the support... The system comprises region 87, a snap-fit ​​region 88, and a connecting rod 89 installed between them. A movable rod frame 81 is located inside the fixed sleeve 82 and is slidably connected to its inner wall. A snap-fit ​​rod frame 83, rotatably connected to one end of the movable rod frame 81, is located within the snap-fit ​​region 88. The snap-fit ​​rod frame 83 has a snap-fit ​​hole 84, and a circular magnet block 85 is fixedly installed at the end of the snap-fit ​​rod frame 83. An electromagnet body 96 is fixedly installed inside the snap-fit ​​region 88. When energized, a repulsive force is generated on the circular magnet block 85. The electromagnet body 96 and the button body 58 are electrically connected. A sliding column 86 is fixedly mounted on the latching rod bracket 83, and a spiral groove 9 and a sliding groove 91 are provided inside the latching area 88. The sliding column 86 slides within the spiral groove 9 and the sliding groove 91, with the end of the spiral groove 9 communicating with the beginning of the sliding groove 91. The end of the spiral groove 9 is located above the beginning, and the angle between their longitudinal extensions is within a certain range. At 90°, in the initial state, the sliding column 86 on the snap-fit ​​rod bracket 83 is located at the initial end of the spiral groove 9. A spring body 92 is connected between the inner wall of the snap-fit ​​area 88 and the snap-fit ​​rod bracket 83. A through sleeve 93 is fixedly installed on the snap-fit ​​area 88. A snap-fit ​​column 94 is installed inside the through sleeve 93. One end of the snap-fit ​​column 94 is located inside the snap-fit ​​area 88 and is in contact with the snap-fit ​​rod bracket 83. A spring body 95 is also connected between the other end of the snap-fit ​​column 94 and the inner wall of the through sleeve 93.To further explain, in the initial state, the sliding column 86 on the locking rod bracket 83 is located at the initial end of the spiral groove 9. At this time, there is an angle difference between the locking hole 84 and the locking column 94 on the locking rod bracket 83 (but at this time, the locking hole 84 and the locking column 94 are on the same horizontal line), and the angle difference is 90°. At the same time, the spring body 95 connected between the locking column 94 and the inner wall of the through sleeve 93 is in a compressed state. When the sliding column 86 moves to the end of the spiral groove 9 (i.e., the initial end of the sliding groove 91), the locking is complete. There is no angular difference between the locking hole 84 and the locking post 94 on the rod bracket 83, but there is a height difference between them. The end of the sliding groove 91 and the beginning of the spiral groove 9 are on the same horizontal plane. When the electromagnet body 96 receives a signal from the button body 58, the electromagnet body 96 is energized, which energizes the circular magnet block 85, causing the locking rod bracket 83 to descend. The sliding post 86 on it moves to the end of the sliding groove 91. At this time, the locking post 94 will enter the locking hole 84 under the action of the spring body 95.

[0020] Specifically, when the rope guide plate 42 bends or breaks due to frequent impacts, the wire rope is not restricted. During winding or conveying, the wire rope acts on the anti-derailment rod 8, which in turn moves the movable rod frame 81 within the fixed sleeve 82. If the wire rope's range of motion is large, the force on the anti-derailment rod 8 will increase, and the movement distance of the movable rod frame 81 within the fixed sleeve 82 will also increase. If there is a derailment, the sliding column 86 on the locking rod frame 83 will move. Towards the end of the spiral groove 9, i.e., the initial end of the sliding groove 91, during the movement, the locking rod 83 rotates on the moving rod 81, and the final rotation angle is 90°. At this time, the locking hole 84 is located above the locking column 94, resulting in a disengagement situation. Then, the button body 58 is pressed. Under the action of signal transmission, the electromagnet body 96 is energized to generate a repulsive force on the circular magnet block 85, thereby causing the sliding column 86 on the locking rod 83 to move from the initial end to the end of the sliding groove 91. At this time, the locking hole 84 moves to the locking position. At column 94, the locking column 94, under the action of the return spring 59, moves into the locking hole 84, thereby positioning the lifting action of the locking rod 83. At this time, the moving rod 81 is correspondingly limited, replacing the temporary limit of the wire rope by the rope stop plate 42, thus reducing the risk of wire rope breakage during transportation. Furthermore, if the rope stop plate 42 bends or breaks, the wire rope on the pulley mechanism 41 has not yet dislodged (the button body 58 is not pressed in this state, and therefore the electromagnet...). If the main body 96 is not energized, it means that the wire rope is still moving along a certain trajectory under this condition. However, as the working time increases, the wire rope will inevitably derail. Therefore, when the electromagnet main body 96 is not energized, the spring body 92 will act on the end of the clamping rod 83, causing the sliding column 86 to move to the end of the sliding groove 91. This ensures that the anti-derailment rod 8 limits the wire rope under this condition. Through the structural design of the present invention, the probability of the wire rope derailing can be effectively reduced, ensuring the safety of tower crane transportation operations.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower crane device, characterized in that: The system includes two tower bodies (1) fixed to the support surface. The two tower bodies (1) are parallel to each other. Each tower body (1) consists of two tower bodies (11) and a main support arm (12) fixedly connected between them. A sliding support arm (2) is also provided between the two main support arms (12). The two ends of the sliding support arm (2) are limited to sliding on the two main support arms (12). A luffing car body (3) is provided on the sliding support arm (2). The luffing car body (3) is limited to sliding on the sliding support arm (2). A support panel (4) is installed on the luffing car body (3). A pulley mechanism (41) is symmetrically installed on the support panel (4). A rope stop plate (42) for limiting the wire rope on the pulley mechanism (41) is installed on the support panel (4). A servo motor (43) is installed on the support panel (4), a transmission mechanism (44) connected to the output end of the servo motor (43) and a rope winding mechanism (45) connected to the transmission mechanism (44). A detection element (5) is provided above each of the two pulley mechanisms (41), and the detection element (5) is used to perform anti-derailment detection on the pulley mechanism (41). A drive mechanism (6) for controlling the detection element (5) to perform directional action is symmetrically provided on the support panel (4), and an output mechanism (7) for controlling the drive mechanism (6) to perform action is symmetrically provided on the transmission mechanism (44), so that the output mechanism (7) controls the detection element (5) to perform anti-derailment detection action on the pulley mechanism (41) under the action of the drive mechanism (6). The drive mechanism (6) includes a support frame (61) symmetrically arranged on the support panel (4), and a lead screw (62) rotatably connected to the inner wall of the support frame (61) is provided inside the support frame (61). A drive plate (63) slidably connected to the inner wall of the support frame (61) is installed on the lead screw (62), and an arc-shaped block (64) is installed on the drive plate (63). The testing component (5) includes a testing sleeve (51) disposed above two pulley mechanisms (41). A force-bearing rod (52) is installed at one end of the testing sleeve (51), and the end of the force-bearing rod (52) is located inside the support frame (61) and slides on the arc-shaped block (64). Multiple return springs (53) are connected between the testing sleeve (51) and the outside of the support frame (61). A movable panel (54) is installed inside the testing sleeve (51) and is slidably connected to its inner wall. A testing rod (55) is installed on one side of the movable panel (54). The end of the testing rod (55) penetrates the inner wall of the testing sleeve (51) and extends to the outside. A rubber roller (56) is installed at the end of the testing rod (55) and is rotatably connected to it. The rubber roller (56) is located above the pulley mechanism (41). A touch bar (57) is installed on the side of the movable panel (54) away from the test bar (55). A button body (58) is installed inside the test sleeve (51), and the button body (58) is located on the movement trajectory of the touch bar (57). A reset spring (59) is also connected between the inner wall of the test sleeve (51) and the movable panel (54). An anti-disengagement rod (8) is provided above the pulley mechanism (41). The anti-disengagement rod (8) is located on one side of the support frame (61), and movable rod frames (81) are installed at both ends of the anti-disengagement rod (8). Multiple fixed sleeves (82) are installed on the support panel (4). The movable rod frame (81) is located inside the fixed sleeve (82) and is slidably connected to its inner wall. A snap-fit ​​rod frame (83) is installed at one end of the movable rod frame (81) and is rotatably connected to it. A snap-fit ​​hole is provided on the snap-fit ​​rod frame (83). (84), and a circular magnet (85) is installed at the end of the snap-fit ​​rod frame (83). A sliding column (86) is provided on the snap-fit ​​rod frame (83). The fixed sleeve (82) is composed of a support area (87), a snap-fit ​​area (88) and a connecting rod (89) installed between the two. The snap-fit ​​rod frame (83) is located inside the snap-fit ​​area (88). A spiral groove (9) and a sliding groove (91) are provided inside the snap-fit ​​area (88). A through sleeve (93) is installed on the snap-fit ​​area (88). A snap-fit ​​column (94) is provided inside the through sleeve (93). A spring body (95) is also connected between the other end of the snap-fit ​​column (94) and the inner wall of the through sleeve (93). An electromagnet body (96) is installed inside the snap-fit ​​area (88). The electromagnet body (96) is electrically connected to the button body (58).

2. The tower crane device according to claim 1, characterized in that: The output mechanism (7) includes a transmission shaft (71) symmetrically arranged on the transmission mechanism (44), and an intermittent gear (72) is mounted on the transmission shaft (71). The transmission mechanism (44) is also symmetrically mounted with a rotating shaft (73) that is rotatably connected to it from the outside. A gear body (74) is mounted on the rotating shaft (73), and the gear body (74) is located on the meshing trajectory of the intermittent gear (72).

3. A tower crane device according to claim 2, characterized in that: The other end of the lead screw (62) is located outside the support frame (61) and connected to the end of the rotating shaft (73).

4. A tower crane device according to claim 1, characterized in that: The sliding column (86) slides in a limited position on the spiral groove (9) and the sliding groove (91), and the end of the spiral groove (9) and the beginning of the sliding groove (91) are in a connected state. A spring body (92) is connected between the inner wall of the snap-fit ​​area (88) and the snap-fit ​​rod frame (83).

5. A tower crane device according to claim 4, characterized in that: One end of the snap-fit ​​column (94) is located inside the snap-fit ​​area (88) and is in contact with the snap-fit ​​rod frame (83).

6. A tower crane device according to claim 4, characterized in that: The end of the spiral groove (9) is in communication with the beginning of the sliding groove (91), and the end of the sliding groove (91) and the beginning of the spiral groove (9) are on the same horizontal line.

7. A tower crane device according to claim 4, characterized in that: Furthermore, when the electromagnet body (96) is energized, it generates a repulsive force on the circular magnet block (85).

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