Emergency descending rescue mechanism for tower crane driver

Abstract

The invention relates to a tower crane driver emergency descending rescue mechanism which comprises a mounting base fixedly arranged on the ground of a tower crane cab. The bearing platform is arranged in the mounting base, one end of the bearing platform is rotationally connected with the mounting base, and the other end of the bearing platform is movably connected with the mounting base through a driving part; the seat mounting part is movably arranged on the inner side of the bearing platform; the hoisting mechanism is arranged on the outer side of the bearing platform and is connected with the seat mounting part through a bearing cable; the alarm device is in transmission connection with an output shaft of the hoisting mechanism; an external monitoring system for vital signs of the driver; and the trigger control unit is electrically connected with the driving piece and an external monitoring system. Through linkage with an external monitoring system, automatic dangerous case identification and remote one-key triggering are achieved, rescue actions are started within seconds, and the response time is greatly shortened.

Description

Technical Field

[0001] This application relates to the field of emergency rescue technology, and in particular to an emergency descent rescue mechanism for tower crane operators. Background Technology

[0002] Tower cranes are core equipment in modern construction, with their operator's cabs often located tens or even hundreds of meters above the ground, creating a closed and isolated working environment. Operators working in this environment for extended periods face risks such as sudden cardiovascular or cerebrovascular events, fainting, heatstroke, or disability due to accidental collisions. Once an operator loses mobility inside the cab, they are not only unable to save themselves, but it is also difficult for outsiders to detect the danger immediately, creating a severe safety dilemma of "difficulty in detecting hazards and slow rescue response."

[0003] Currently, the industry lacks efficient and specialized rescue equipment for this scenario. Traditional rescue methods rely entirely on ground personnel climbing the tower, which has fatal flaws such as excessively long response times (far exceeding the "golden time" for medical rescue), extremely high risks to rescuers themselves, and extreme difficulty in transferring disabled drivers upon arrival. Commercially available general-purpose high-altitude descent devices or escape ropes have significant shortcomings when applied to this scenario: 1) They require the user to be conscious and capable of independent operation (e.g., wearing hooks and controlling posture), and are ineffective on unconscious individuals; 2) They are purely mechanical devices and cannot be linked to the driver's health monitoring system or remote monitoring center, thus failing to achieve automatic triggering; 3) They lack reliable and automatic buffering and limiting mechanisms at the end of the descent, posing a risk of falling to the ground or hovering too high; 4) They have limited functionality and lack the ability to actively send strong and persistent distress signals during descent, hindering rapid location in complex construction site environments; 5) They cannot adapt to the changing height of the tower crane as construction progresses.

[0004] Therefore, there is an urgent need to develop an intelligent emergency descent rescue device for tower crane operators that can automatically sense, quickly trigger, smoothly descend, autonomously warn, and adapt to different heights. Summary of the Invention

[0005] Therefore, it is necessary to provide an emergency descent rescue mechanism for tower crane operators to overcome the deficiencies mentioned in the background art.

[0006] An emergency descent rescue mechanism for tower crane operators, including The mounting base is fixedly installed on the ground of the tower crane cab. The support platform is set inside the mounting base, with one end rotatably connected to the mounting base and the other end movably connected to the mounting base via a driving component; The seat mounting section is movably disposed on the inner side of the support platform; A hoisting mechanism is located on the outside of the support platform and connected to the seat mounting part via a support cable; The alarm device is connected to the output shaft of the hoisting mechanism via a transmission connection; External monitoring systems are used to monitor the driver's vital signs; and The trigger control unit is electrically connected to the drive unit and the external monitoring system.

[0007] As a preferred embodiment of the tower crane operator emergency descent rescue mechanism in this invention, the mounting base includes a fixed mounting frame. A load-bearing rotating column is provided on one side of the fixed mounting frame, and a driving component is provided on the other side. A limit mounting plate is provided on the side of the fixed mounting frame, and a fixed mounting hole is provided on the limit mounting plate.

[0008] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the supporting platform includes a rotating support plate. The inner side of the rotating support plate is provided with a guide mounting groove and a rope guide groove. One end of the guide mounting groove and the rope guide groove is connected to the end of the rotating support plate. The other end of the rope guide groove is provided with a through hole. Both ends of the rope guide groove are provided with rope guide wheels. The opposite ends of the rotating support plate are rotatably connected to the mounting base through a bearing rotating column and a driving component, respectively.

[0009] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the seat mounting part includes a loading mounting plate with a loading mounting hole. A guide mounting post extending into a guide mounting groove is provided on one side of the loading mounting plate. A limit spring is provided in the guide mounting groove, between the guide mounting post and the mounting base. The loading mounting plate can slide along the extension direction of the guide mounting groove via the guide mounting post.

[0010] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the winch mechanism includes a slow-descent mounting cylinder, which is fixedly connected to the outside of the rotating support plate via a fixed mounting frame. A conical rope guide cylinder is provided facing the rotating support plate, and a rotating rope winding cylinder is rotatably connected inside the conical rope guide cylinder. One end of the carrying cable is wound around the rotating rope winding cylinder, and the other end passes through the conical rope guide cylinder and the rope guide groove and is fixedly connected to the loading mounting plate.

[0011] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the slow-descent mounting cylinder is further provided with a height adjustment device, which includes a limiting guide frame. The limiting guide frame is fixed to the inner wall of the slow-descent mounting cylinder, and a movable mounting frame is slidably mounted on the limiting guide frame. The movable mounting frame is connected to the abutment mounting plate through a drive telescopic column.

[0012] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the mobile mounting frame is also provided with synchronous drive wheels, and the working surface of the abutment mounting plate is provided with abutment protrusions.

[0013] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the alarm device is located at the end of the descent mounting cylinder and includes a buzzer mounting cylinder and a generator mounting cylinder arranged in sequence. The buzzer mounting cylinder and the generator mounting cylinder are connected to the rotating rope winding cylinder via a gear speed increaser. A buzzer generator is installed inside the buzzer mounting cylinder, and a generator module battery and a flashing alarm light are installed inside the generator mounting cylinder.

[0014] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the power generation module includes a mover turntable, which is connected to the output shaft of a gear speed increaser. The mover turntable is provided with a permanent magnet and a coil disposed opposite to the permanent magnet.

[0015] As a preferred embodiment of the emergency descent rescue mechanism for tower crane operators in this invention, the wall of the buzzer mounting cylinder is provided with an acoustic diffusion hole, and the outside of the strobe alarm light is provided with a spherical lampshade.

[0016] The beneficial effects of this invention are: This invention, through linkage with an external monitoring system, enables automatic identification of hazards and remote one-click triggering, allowing rescue operations to commence within seconds and significantly shortening response time. Through the buffered guiding design of the supporting cable, damping control of the rotating rope drum, and end-mechanical clamping limit, it ensures that the disabled driver descends to a safe height above the ground without impact or rotation, avoiding secondary injury. The descent potential energy is directly converted into the energy required for the audible and visual alarm, enabling the active emission of a strong audible and visual distress signal at high altitudes, effectively solving the "information island" problem at the rescue site and facilitating rapid location and response by ground personnel. The overall mechanism adopts a modular design, integrating triggering, descent, alarm, and adjustment functions into a compact structure that can be seamlessly integrated with existing driver's cabs and seats, without affecting daily operation and ensuring reliable operation in emergencies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the overall structural diagrams of the emergency descent rescue mechanism according to an embodiment of this application; Figure 2 This is the second schematic diagram of the overall structure of the emergency descent rescue mechanism according to an embodiment of this application; Figure 3 This is one of the partial cross-sectional structural diagrams showing the connection between the carrying platform and the hoisting mechanism in an embodiment of this application; Figure 4 This is a second partial cross-sectional structural diagram of the connection between the carrying platform and the hoisting mechanism in an embodiment of this application; Figure 5 This is a partial cross-sectional structural diagram of the hoisting mechanism according to an embodiment of this application; Figure 6 This is one of the partial cross-sectional structural schematic diagrams of the slow-descent mounting cylinder, the buzzer mounting cylinder, and the power generation mounting cylinder according to embodiments of this application; Figure 7 for Figure 6 Enlarged structural diagram at point a; Figure 8 This is a second partial cross-sectional structural schematic diagram of the slow-descent mounting cylinder, the buzzer mounting cylinder, and the power generation mounting cylinder according to an embodiment of this application; Figure 9 This is a schematic diagram of the internal structure of the slow-descent mounting cylinder, the buzzer mounting cylinder, and the power generation mounting cylinder according to an embodiment of this application. Figure 10 This is a schematic diagram of the connection between the supporting mounting plate and the movable mounting frame in an embodiment of this application; Explanation of reference numerals in the attached figures: 1. Fixed mounting frame; 2. Limiting mounting plate; 3. Fixed mounting hole; 4. Rotating support plate; 5. Guide mounting groove; 6. Guide mounting column; 7. Loading mounting plate; 8. Loading mounting hole; 9. Rope guide groove; 10. Bearing rotating column; 11. Driving component; 12. Fixed mounting bracket; 13. Decelerating mounting cylinder; 14. Buzzer mounting cylinder; 15. Generator mounting cylinder; 16. Spherical lampshade; 17. Limiting spring; 18. Bearing cable; 19. Rope guide wheel; 20. Conical rope guide cylinder; 21. Rotating rope winding cylinder; 22. Synchronous mounting bracket 23. Acoustic diffuser hole; 24. Limiting guide frame; 25. Support mounting plate; 26. Strobe alarm light; 27. Battery; 28. Coil; 29. ​​Limiting bearing sleeve; 30. Limiting shaft; 31. Gear speed increaser; 32. Output shaft; 33. Rotating mounting column; 34. Buzzer generator; 35. Mover turntable; 36. Permanent magnet; 37. Sliding conductive groove; 38. Limiting guide column; 39. Sliding conductive strip; 40. Movable mounting bracket; 41. Synchronous drive wheel; 42. Drive telescopic column; 43. Support protrusion. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] According to one aspect of this application, embodiments of this application provide an emergency descent rescue mechanism for tower crane operators, please refer to the following: Figures 1 to 10 The tower crane operator emergency descent rescue mechanism includes a mounting base, a support platform, a seat mounting section, a winch mechanism, an alarm device, an external monitoring system, and a trigger control unit. The mounting base is fixedly installed on the ground of the tower crane cab; the support platform is located inside the mounting base, with one end rotatably connected to the mounting base and the other end movably connected to the mounting base via a drive component; the seat mounting section is movably located inside the support platform; the winch mechanism is located outside the support platform and connected to the seat mounting section via a support cable; the alarm device is driven by the output shaft of the winch mechanism; the external monitoring system is used to monitor the operator's vital signs; and the trigger control unit is electrically connected to the drive component and the external monitoring system to trigger the drive component based on information from the external monitoring system.

[0026] In one embodiment, the mounting base includes a horizontally arranged fixed mounting frame 1, which is welded from steel profiles and has sufficient strength and rigidity. Several limiting mounting plates 2 are welded to its outer perimeter, and each plate has multiple fixed mounting holes 3 drilled in it.

[0027] In one embodiment, during the construction or modification of the tower crane cab, an installation opening matching the inner cavity of the fixed installation frame 1 needs to be drilled at a preset position on the floor. During installation, the entire mechanism is lifted upward from below the cab, so that the fixed installation frame 1 is embedded in the installation opening, with its frame resting on the load-bearing structure of the cab floor. Subsequently, high-strength bolts are used to pass through the fixed installation holes 3 on the limiting installation plate 2 to firmly connect the fixed installation frame 1 to the cab floor. This embedded installation ensures the stability of the mechanism and hides the main body of the mechanism under the cab floor, without affecting the internal space of the cab and the daily activities of the driver.

[0028] In one embodiment, the support platform includes a rotating support plate 4, which is horizontally positioned within the interior space of the fixed mounting frame 1. One end of the rotating support plate 4 is rotatably connected to the two side frames of the fixed mounting frame 1 via a horizontally penetrating rotating support column 10. The rotating support column 10 serves as the rotation axis for the entire platform's tilting motion. Below the other end of the rotating support plate 4, two symmetrically arranged telescopic columns 11 serve as driving components. The telescopic columns 11 are preferably electric push rods or small hydraulic cylinders, with their cylinder bodies fixed to the lower crossbeam of the fixed mounting frame 1, and the top ends of their telescopic rods resting against the bottom surface of the rotating support plate 4. Under normal conditions, the telescopic rods of the telescopic columns 11 are fully extended, providing support force to firmly lock the rotating support plate 4 in a horizontal position, ensuring its upper surface is flush with the cab floor, thus forming a stable operating platform.

[0029] In one embodiment, the seat mounting section includes a loading mounting plate 7 located above the rotating support plate 4. The upper surface of the loading mounting plate 7 is machined with a plurality of loading mounts 8 for connecting the original standard operating seat of the tower crane operator by bolts. Thus, the operator's seat is indirectly but rigidly fixed to the loading mounting plate 7. To ensure that the seat and driver can move smoothly along a predetermined path during emergency rollover and prevent twisting or jamming, two guide mounting grooves 5 are machined on the upper surface of the rotating support plate 4, parallel to its long side. Correspondingly, two guide mounting posts 6 are fixedly connected to the lower surface of the loading mounting plate 7 by a synchronous mounting bracket 22. During installation, the guide mounting posts 6 are precisely inserted into the corresponding guide mounting grooves 5 to form a sliding pair. At the end of each guide mounting groove 5 away from the bearing rotating post 10, i.e., the direction in which the seat slides out when the platform rolls, a limit spring 17 is installed on the inner wall of the corresponding fixed mounting frame 1. Under normal conditions, the limit spring 17 is in a slightly compressed state, and its elastic force presses against the guide mounting post 6 or the synchronous mounting bracket 22 to keep the loading mounting plate 7 and the seat in a certain initial position, avoiding shaking during daily operation.

[0030] In one embodiment, the hoisting mechanism includes a slow-descent mounting cylinder 13, which is a robust cylindrical shell that is rigidly fixed to the lower surface of the rotating support plate 4, i.e., the outer side of the platform, by multiple fixed mounting brackets 12. Inside the slow-descent mounting cylinder 13, a limiting shaft 30 is supported by limiting bearing sleeves 29 at both ends. A rotating rope drum 21 is fixedly fitted in the middle of the limiting shaft 30 and can rotate synchronously with it. High-strength load-bearing cable 18 is wound in multiple layers, tightly and orderly on the rotating rope drum 21.

[0031] In one embodiment, a guide rope groove 9 is formed along the central axis of the rotating support plate 4. Through holes penetrating the rotating support plate 4 are provided at both ends of the guide rope groove 9. Inside each end of the guide rope groove 9, a set of guide rope wheels 19 are installed. At the top of the descent mounting cylinder 13, directly opposite the starting point of the guide rope groove 9, a conical guide rope drum 20 is installed. Its function is to guide the wire rope 18 through a smooth transition, reducing wear. The free end of the carrying cable 18 is led out from the rotating winding drum 21, passes upwards sequentially through the conical guide rope drum 20 and the starting end of the guide rope groove 9, then winds around multiple guide rope wheels 19 within the guide rope groove 9 in an "S" shaped path, and finally exits from the end of the guide rope groove 9, and is securely connected to the bottom of the loading mounting plate 7 via the synchronous mounting bracket 22.

[0032] In one embodiment, to adapt to the continuously rising tower crane height during construction with a single installation and to achieve precise and reliable braking at the end of descent, a height adjustment device is integrated within the slow-descent mounting cylinder 13. This height adjustment device includes a horizontal limiting guide frame 24, which is fixed to the inner wall of the slow-descent mounting cylinder 13, with its length parallel to the axis of the cylinder. A movable mounting frame 40 sits atop the limiting guide frame 24 via a limiting guide post 38 at its bottom and can slide along it. Synchronous drive wheels 41 are installed at both ends of the movable mounting frame 40, and the drive wheels are connected to the upper... The surface contact is driven by a built-in micro motor, which can move the entire mobile mounting frame 40 precisely along the track. On the mobile mounting frame 40, a support mounting plate 25 is installed through a drive telescopic column 42. The support mounting plate 25 is directly opposite the section of the carrying cable 18 from the rotating rope drum 21 to the conical guide rope drum 20. The working surface of the support mounting plate 25 is machined with dense support protrusions 43 to increase the coefficient of friction. In order to realize the power supply for movement and control, a sliding conductive groove 37 is embedded in the inner side of the limiting guide frame 24, and a sliding conductive strip 39 is correspondingly provided at the bottom of the limiting guide column 38, forming a sliding electrical contact.

[0033] In one embodiment, the tower crane operator's emergency descent rescue mechanism recovers the descent potential energy to drive the alarm device, requiring no external power source. The alarm device's power comes from the rotation of the rotating rope drum 21. The limiting shaft 30 of the rotating rope drum 21 extends outward and connects to the input end of a gear speed increaser 31. The gear speed increaser 31 significantly increases the rotational speed of the drum from its low speed and outputs the speed through two coaxial output shafts 32. The alarm device includes a buzzer mounting cylinder and a generator mounting cylinder arranged sequentially. The buzzer mounting cylinder and the generator mounting cylinder are connected to the rotating rope drum via the gear speed increaser. A buzzer generator is installed inside the buzzer mounting cylinder. The power installation cylinder is equipped with a power generation module battery and a flashing alarm light. The output shaft 32 extends into a sealed buzzer installation cylinder 14. At the end of the output shaft 32, a rotating mounting column 33 is fixed, and a buzzer generator 34 is installed at its end. When the output shaft 32 rotates at high speed, the buzzer generator 34 disturbs the air and produces a high-frequency, high-volume buzzing sound. Multiple acoustic diffusion holes 23 are evenly opened on the cylinder wall of the buzzer installation cylinder 14, which serve to converge and diffuse the sound and enhance the warning effect. The output shaft 32 also extends into the power generation installation cylinder 15, and a moving disk 35 is fixed at its end. Multiple permanent magnets 36 are embedded circumferentially along the edge of the disk. An induction coil 28 is fixedly installed on the casing of the power generation installation cylinder 15 at a position corresponding to the rotation trajectory of the permanent magnet 36. According to the principle of electromagnetic induction, when the mover turntable 35 rotates at high speed, the magnetic field of the permanent magnet 36 periodically cuts the coil 28, generating an induced current in the coil. The generated electrical energy is output through wires, part of which directly drives the high-brightness flashing alarm light 26, which is covered by a spherical lampshade 16 to expand the visibility angle and range. The other part charges the battery 27 built into the cylinder wall. The function of the battery 27 is to provide auxiliary power to the alarm system during the initial descent or at low speeds, ensuring the continuity of the alarm.

[0034] In one embodiment, the control unit is integrated into the existing safety controller of the tower crane. It is electrically connected to the motors of the telescopic column 11, the synchronous drive wheel 41, and the drive telescopic column 42 via cables. At the same time, it receives signals from external detection systems via a network or data line. The external detection systems include a heart rate and blood oxygen monitor worn by the driver and a video behavior analysis system in the cab.

[0035] The automated rescue workflow of the tower crane operator emergency descent rescue mechanism is as follows: Monitoring and Decision-Making: The external detection system continuously monitors the driver's vital signs and operational status. Upon detecting abnormalities such as sudden cardiac arrest or prolonged inactivity, it immediately sends an alarm signal to the trigger control unit. This signal can also be transmitted to the ground monitoring center, where a safety officer can remotely confirm and manually send a trigger command.

[0036] Triggering and Tilting Disengagement: Upon receiving a valid rescue command, the trigger control unit immediately sends a retraction command to the two telescopic columns 11. The telescopic columns quickly retract, releasing the support for the rotating support plate 4. Under the influence of gravity, the entire assembly consisting of the rotating support plate 4, the loading mounting plate 7, the driver, and the seat rotates rapidly outward and downward around the load-bearing rotating column 10 due to the torque generated by its center of gravity. During this process, the guide mounting column 6 slides along the guide mounting groove 5, smoothly guiding the seat and driver through the opening in the middle of the fixed mounting frame 1, completely detaching them from the cab and suspending them in the air. The limit spring 17 is compressed in the initial stage of the tilting and then released, without affecting the disengagement action.

[0037] Descending and Energy Recovery Alarm: When the seat detaches from the driver's cab, the entire weight of the driver and seat instantly acts on the load-bearing cable 18. Gravity pulls the cable 18 to rotate the rope drum 21, releasing the steel wire rope, and the person begins to descend slowly. The steel wire rope, within the guide groove 9 and through the guide pulley 19, forms an "S"-shaped path, providing effective initial cushioning and guidance to prevent swaying and sudden falls.

[0038] Meanwhile, the rotation of the rope-winding drum 21 drives the gear speed increaser 31 through the limit shaft 30. The high-speed rotating output shaft 32 synchronously drives the buzzer generator 34 and the mover turntable 35. Thus, at the beginning of the descent, a piercing buzzer alarm sounds in the high sky, and a bright strobe light illuminates, realizing a self-powered, high-pitched, and continuous rescue positioning signal.

[0039] Adaptive limit and hovering: During the descent, the trigger control unit calculates the required wire rope release length based on the real-time cab height data obtained from the tower crane control system and the preset safe hovering height. Based on this, it controls the synchronous drive wheel 41 to preposition the moving mounting bracket 40 and the supporting mounting plate 25 in the corresponding positions of the limit guide frame 24.

[0040] When the length of the load-bearing cable 18 is about to reach the predetermined value, the trigger control unit sends an action command to the drive telescopic column 42. The drive telescopic column 42 quickly extends and pushes the abutment mounting plate 25, causing the abutment protrusion 43 on it to clamp the moving load-bearing cable 18 with great pressure. The strong friction causes the wire rope 18 to brake instantly, the rotating rope drum 21 stops rotating, the descent process ends smoothly, and the driver is safely suspended at the predetermined height.

[0041] Ground rescue: Ground construction workers can quickly determine the location of the accident and rush to the scene when they hear the continuous alarm and see the flashing lights. Since the driver has been lowered to a height close to the ground, rescuers can use simple tools such as short ladders to easily and quickly rescue the disabled driver from the seat and send him to the hospital for treatment.

[0042] The height adaptation process of the tower crane operator's emergency descent rescue mechanism is as follows: As the tower crane ascends step by step during building construction, only the new cab height data needs to be updated in the tower crane control system. The trigger control unit will automatically recalculate the wire rope release length based on the new data and control the synchronous drive wheel 41 to move the movable mounting frame 40 to the new corresponding position on the limit guide frame 24. The entire process can be completed with a single remote command, eliminating the need for any personnel to climb into the cab for mechanical adjustments, truly achieving "one-time installation, full adaptation."

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A tower crane operator emergency descent rescue mechanism, characterized in that: include The mounting base is fixedly installed on the ground of the tower crane cab. The support platform is set inside the mounting base, with one end rotatably connected to the mounting base and the other end movably connected to the mounting base via a driving component; The seat mounting section is movably disposed on the inner side of the support platform; A hoisting mechanism is located on the outside of the support platform and connected to the seat mounting part via a support cable; The alarm device is connected to the output shaft of the hoisting mechanism via a transmission connection. External monitoring systems are used to check the driver's vital signs. as well as The trigger control unit is electrically connected to the drive unit and the external monitoring system.

2. The tower crane operator emergency descent rescue mechanism according to claim 1, characterized in that, The mounting base includes a fixed mounting frame. A load-bearing rotating column is provided on one side of the fixed mounting frame, and a driving component is provided on the other side. A limiting mounting plate is provided on the side of the fixed mounting frame, and a fixed mounting hole is provided on the limiting mounting plate.

3. The tower crane operator emergency descent rescue mechanism according to claim 1, characterized in that, The supporting platform includes a rotating support plate. The inner side of the rotating support plate is provided with a guide mounting groove and a rope guide groove. One end of the guide mounting groove and the rope guide groove is connected to the end of the rotating support plate. The other end of the rope guide groove is provided with a through hole. Both ends of the rope guide groove are provided with rope guide wheels. The opposite ends of the rotating support plate are rotatably connected to the mounting base through a bearing rotating column and a driving component, respectively.

4. The tower crane operator emergency descent rescue mechanism according to claim 1, characterized in that, The seat mounting part includes a loading mounting plate with a loading mounting hole. A guide mounting post extending into a guide mounting groove is provided on one side of the loading mounting plate. A limit spring is provided in the guide mounting groove, between the guide mounting post and the mounting base. The loading mounting plate can slide along the extension direction of the guide mounting groove through the guide mounting post.

5. The tower crane operator emergency descent rescue mechanism according to claim 1, characterized in that, The hoisting mechanism includes a slow-descent mounting cylinder, which is fixedly connected to the outside of the rotating support plate via a fixed mounting bracket. A conical rope guide cylinder is provided facing the rotating support plate, and a rotating rope winding cylinder is rotatably connected inside the conical rope guide cylinder. One end of the carrying cable is wound around the rotating rope winding cylinder, and the other end passes through the conical rope guide cylinder and the rope guide groove and is fixedly connected to the loading mounting plate.

6. The tower crane operator emergency descent rescue mechanism according to claim 5, characterized in that, The slow-descent mounting cylinder is also equipped with a height adjustment device, which includes a limiting guide frame. The limiting guide frame is fixed to the inner wall of the slow-descent mounting cylinder, and a movable mounting frame is slidably mounted on the limiting guide frame. The movable mounting frame is connected to the abutment mounting plate through a drive telescopic column.

7. The tower crane operator emergency descent rescue mechanism according to claim 6, characterized in that, The movable mounting frame is also equipped with synchronous drive wheels, and the working surface of the abutting mounting plate is provided with abutting protrusions.

8. The tower crane operator emergency descent rescue mechanism according to claim 1, characterized in that, The alarm device is located at the end of the slow-descent mounting cylinder and includes a buzzer mounting cylinder and a power generation mounting cylinder arranged in sequence. The buzzer mounting cylinder and the power generation mounting cylinder are connected to the rotating rope winding cylinder through a gear speed increaser. A buzzer generator is installed inside the buzzer mounting cylinder, and a power generation module battery and a flashing alarm light are installed inside the power generation mounting cylinder.

9. The tower crane operator emergency descent rescue mechanism according to claim 8, characterized in that, The power generation module includes a mover turntable, which is connected to the output shaft of the gear speed increaser. The mover turntable is provided with a permanent magnet and a coil arranged opposite to the permanent magnet.

10. The tower crane operator emergency descent rescue mechanism according to claim 8, characterized in that, The buzzer mounting cylinder has acoustic diffusion holes in its wall, and the strobe alarm light has a spherical lampshade on its exterior.

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