Anti-falling device of high-rise building construction hoist

Abstract

The invention relates to the technical field of elevator anti-falling, in particular to a high-rise building construction elevator anti-falling device which comprises an elevator frame, an elevator material frame is movably installed in the elevator frame, and an anti-falling mechanism is fixedly installed on the outer side of the elevator material frame. During application, the rotation limiting set is matched with the transmission assembly, a mechanical anti-falling system is constructed, when a circuit system loses efficacy, the electronic limiting set loses action, the elevator material frame rapidly falls under the influence of gravitational acceleration, the gear and the rack are driven to rotate in a meshed mode, and then the mounting disc rotates at a high speed; the centrifugal force promotes the load bearing sliding plate and the load bearing ball to drive the inner clamping frame to move outwards and be buckled to the outer clamping frame, the rotating shaft and the elevator material frame are fixed, during normal use, the elevator material frame ascends and descends at a constant speed, the centrifugal force is small, the inner clamping frame and the outer clamping frame are not clamped, normal operation of the elevator material frame is guaranteed, and the equipment safety is improved through double guarantees.

Description

Technical Field

[0001] The present application relates to the technical field of elevator anti-falling, and in particular to an anti-falling device for an elevator in high-rise building construction. Background Art

[0002] In today's context of accelerating industrialization, elevators, as a multifunctional lifting and loading and unloading mechanical equipment, play an indispensable and key role in many industries such as factories, construction sites, and coal mines. Taking construction projects as an example, elevators have become extremely important equipment in auxiliary construction links and are widely used in key operation processes such as material transportation and personnel transportation.

[0003] However, there are potential safety hazards in current elevator technology that cannot be ignored. Under existing technical conditions, once the elevator encounters an emergency situation such as wire rope breakage or other connection structure failure during operation, the lifting platform will often fall rapidly, which is particularly dangerous during the upward transportation of materials. It may not only cause serious damage to the goods, but also pose a huge threat to the lives of on-site personnel.

[0004] To solve this problem, relevant technical personnel have conducted active explorations. For example, a Chinese patent with announcement number "CN117023315B" discloses an anti-fall device for a construction elevator. The device connects the supporting side columns and the supporting top plate on the top of the installation bottom box, arranges an anti-fall bar on the inner side of the supporting side column, and makes the anti-collision box and the anti-fall bar slide and engage. At the same time, an anti-fall motor is connected to the side of the anti-collision box, and the internal fixing mechanism, such as rotating gears and engaging gear rings, is driven by the motor to realize the functions of sharing the lifting tension and limiting the position, so as to ensure the stability of the lifting frame during the lifting process and reduce the risk of safety accidents. In addition, the device adopts a traction machine, which reduces the tension on the top of the device to a certain extent.

[0005] Although the elevator device has made efforts in the anti-fall function, it still exposes obvious defects in the actual application process. On the one hand, its anti-fall mechanism mainly relies on the anti-fall motor drive. As an electrical structure, the anti-fall motor has great limitations in application scenarios such as high-rise buildings. When the elevator fails and causes a fall, it is very likely that the circuit failure will cause a power outage. Once the power is off, the anti-fall motor will not be able to work normally, and the anti-fall protection function will be completely lost. On the other hand, the anti-fall motor directly acts on the elevator frame. When the elevator frame is loaded with a large load, since the anti-fall motor is installed inside the elevator, space limitations make it difficult to adapt to high-power electric motors. Smaller-power electric motors have limited load-bearing capacity. When facing a heavy-loaded elevator frame, they are easily damaged by overload, which greatly reduces the overall anti-fall capability. In summary, the technical defects of the existing elevator anti-fall device urgently need to be solved through improved design to effectively improve the safety performance of the elevator under complex working conditions and ensure the safety of personnel and goods. Summary of the invention

[0006] In order to improve the anti-fall capability of the elevator in the prior art, the present application provides an anti-fall device for a high-rise building construction elevator.

[0007] The present application provides a high-rise building construction elevator anti-falling device, which adopts the following technical solution: comprising an elevator frame, an elevator material frame is movably installed inside the elevator frame, an anti-falling mechanism is fixedly installed on the outside of the elevator material frame, and the outer side of the anti-falling mechanism is clamped with the elevator frame;

[0008] The anti-fall mechanism includes a transmission assembly, a rotation limit group and an electronic limit group. The transmission assembly is installed on the back of the elevator material frame, the rotation limit group is installed on the back of the transmission assembly, and the electronic limit group is fixedly installed on the bottom of the elevator material frame. A battery, a control module and an acceleration sensor are provided at the bottom of the elevator material frame, and the outer sides of the rotation limit group and the electronic limit group are clamped with the elevator frame.

[0009] Optionally, the transmission assembly includes a vertical plate and a rotating shaft, the vertical plate is fixedly installed on the rear side of the elevator frame, the rotating shaft is rotatably connected to the middle of the back side of the elevator material frame, a gear is fixedly installed on the rear end of the rotating shaft, a rack is fixedly installed on the side of the vertical plate close to the gear, the rack is meshingly connected to the gear, and the back side of the gear is connected to the rotation limit group.

[0010] Optionally, the rotation limit group includes a mounting plate, which is fixedly mounted on the back side of the gear, and the two sides of the gear are provided with slide grooves arranged in a ring shape at equal intervals, and the interior of the slide groove is fixedly connected to a load-bearing limit assembly, and the outer side of the load-bearing limit assembly is clamped with the elevator frame.

[0011] Optionally, the load-limiting assembly includes a side clamp and a telescopic spring, the telescopic spring is fixedly installed inside the slide groove, the side clamp is fixedly installed on both sides of the back side of the elevator frame, the back side of the side clamp is linearly arranged with equal intervals and fixedly installed with an outer clamp frame, the outer clamp frame is T-shaped, the outer side of the telescopic spring is fixedly installed with a weight-bearing slide, the outer side of the weight-bearing slide is fixedly installed with an inner clamp frame, and the inner clamp frame is L-shaped hook-shaped.

[0012] Optionally, a weight-bearing sphere is fixedly mounted on the back of the weight-bearing slide plate, and the internal cross-sectional shapes of the weight-bearing slide plate and the slide groove are both set to be convex shapes.

[0013] Optionally, a supporting frame is fixedly installed on the outer side of the weight-bearing slide plate, a supporting groove is opened on the back side of the mounting plate located on the outer side of the slide groove, the supporting frame is slidably connected to the inside of the supporting groove, and the internal cross-sectional shape of the supporting groove and the cross-sectional shape of the supporting frame located in the supporting groove are both set to be convex shapes.

[0014] Optionally, the electronic limit group includes a trough body and side clamps, the trough body is opened in the middle of the bottom of the elevator frame, a dual-axis motor is fixedly installed in the middle of the interior of the trough body, the side clamps are fixedly installed on both sides of the bottom of the elevator frame, the outer side of the dual-axis motor is fixedly connected with an elastic coupling, the outer end of the elastic coupling is fixedly installed with a connecting shaft, the outer end of the connecting shaft is fixedly connected with a worm, and the worm and the side clamps are transmission connected.

[0015] Optionally, supporting sleeves are fixedly installed at both ends of the groove body, and the outer end of the connecting shaft is rotatably connected to the inside of the supporting sleeve.

[0016] Optionally, the side clamp includes side rails, a front clamp arm and a clamping slot, the side rails are fixedly mounted on the lower ends of both sides of the elevator material frame, the side rails are rotatably connected to a screw rod inside, the threads at both ends of the screw rod are in opposite directions, both ends of the screw rod are threadedly connected to a movable block, the outer side of the movable block is fixedly mounted with an anti-falling clamp arm, the front clamp arms are linearly arranged at equal intervals and fixedly connected to the front ends of both sides of the elevator frame, the clamping slots are linearly arranged at equal intervals and are opened on the inner side of the side clamp plate, the clamping slots penetrate the side clamp plate, the two anti-falling clamp arms are respectively inserted at the top of the front clamp arm and the inner side of the clamping slot, a worm gear is fixedly mounted on the middle part of the screw rod, and the worm gear and worm are drivingly connected.

[0017] Optionally, a hanging seat is fixedly installed on the top of the elevator material frame, a pulling rope is fixedly installed on the top of the hanging seat, and the top of the pulling rope is connected to the traction machine at the top of the elevator.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. The electronic limit group of this device provides effective anti-fall protection for the elevator. When the elevator failure causes the elevator frame to fall, the acceleration sensor in the elevator frame detects the abnormal state, and the control module starts the dual-axis motor. The motor drives the connecting shaft, worm, worm wheel and lead screw to rotate, so that the movable block slides in the rail frame, pushing the anti-falling clamp arm to move outward. When the anti-falling clamp arm contacts the side clamp plate, the elastic coupling buffers the impact. Finally, the anti-falling clamp arm is inserted into the clamping slot and the front clamp arm to realize the clamping and fixing of the elevator frame, which enhances the stability of the device during use and improves the anti-falling function.

[0020] 2. This device adopts a rotating limit group and a transmission component to construct a mechanical anti-fall system. When the circuit system fails and the electronic limit group loses its function, the elevator material frame falls rapidly due to the acceleration of gravity, driving the gear and rack to rotate in meshing, thereby causing the mounting plate to rotate rapidly. The centrifugal force causes the weight-bearing slide plate and the weight-bearing ball to drive the inner clamping frame to move outward and buckle to the outer clamping frame, fixing the rotating shaft and the elevator material frame. During normal use, the elevator material frame rises and falls at a uniform speed, the centrifugal force is small, and the inner and outer clamping frames are not stuck, ensuring the normal operation of the elevator material frame. The double guarantee improves the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of the rear view structure in the embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure viewed from above in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the top view of the structure of the elevator material frame and the anti-falling mechanism in the embodiment of the present application;

[0025] Figure 5 It is a rear view structural diagram of the elevator material frame and the anti-falling mechanism in the embodiment of the present application;

[0026] Figure 6 It is a schematic diagram of the side view structure of the elevator material frame and the anti-falling mechanism in the embodiment of the present application;

[0027] Figure 7 In the embodiment of this application Figure 2 A schematic diagram of the enlarged structure at point A;

[0028] Figure 8 In the embodiment of this application Figure 3 Schematic diagram of the enlarged structure at B.

[0029] Figure numerals: 1, elevator frame; 2, elevator material frame; 3, anti-fall mechanism; 31, transmission assembly; 311, vertical plate; 312, rotating shaft; 313, gear; 314, rack; 32, rotation limit group; 321, mounting plate; 322, slide groove; 323, load-bearing limit assembly; 3231, side clamp plate; 3232, telescopic spring; 3233, outer clamp frame; 3234, load-bearing slide plate; 3235, inner clamp frame; 3236, load-bearing sphere ; 3237, support frame; 3238, support slot; 33, electronic limit group; 331, slot body; 332, side clamp; 3321, side rail; 3322, front clamp arm; 3323, slot; 3324, screw rod; 3325, movable block; 3326, anti-fall clamp arm; 3327, worm gear; 333, dual-axis motor; 334, elastic coupling; 335, connecting shaft; 336, worm; 337, support loop; 4, hanging seat; 5, pulling rope. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-8 This application is described in further detail.

[0031] The present application discloses a high-rise building construction elevator anti-fall device. Figure 1-8 As shown, it comprises an elevator frame 1, an elevator material frame 2 is movably installed inside the elevator frame 1, an anti-falling mechanism 3 is fixedly installed outside the elevator material frame 2, and the outer side of the anti-falling mechanism 3 is clamped with the elevator frame 1;

[0032] The anti-fall mechanism 3 includes a transmission component 31, a rotation limit group 32 and an electronic limit group 33. The transmission component 31 is installed on the back of the elevator frame 2, the rotation limit group 32 is installed on the back of the transmission component 31, and the electronic limit group 33 is fixedly installed on the bottom of the elevator frame 2. A battery, a control module and an acceleration sensor are provided at the bottom of the elevator frame 2. The outer sides of the rotation limit group 32 and the electronic limit group 33 are connected to the elevator frame 1. In the high-rise building construction scene, the anti-fall device of the elevator plays a key role in safety protection. When the elevator is operating normally, the elevator frame 2 moves smoothly inside the elevator frame 1. Once the elevator fails, the anti-fall mechanism 3 responds immediately. First, the acceleration sensor at the bottom of the elevator frame 2 quickly captures the frame state. The state changes. If it is detected that the material frame is in a falling state, the control module uses the battery to power the electronic limit group 33 immediately. The electronic limit group 33 uses a series of mechanical transmissions, such as driving the connecting shaft 335, the worm 336, the worm wheel 3327 and the screw 3324, to push the anti-falling arm 3326 to engage with the elevator frame 1 to achieve emergency braking. If the circuit system fails completely at this time, the rotation limit group 32 and the transmission assembly 31 work together. Under the action of gravity acceleration, the elevator material frame 2 falls rapidly and drives the transmission assembly 31 to operate, thereby making the gear 313 of the rotation limit group 32 mesh with the rack 314, and the gear 313 rotates rapidly. The centrifugal force is used to prompt the inner frame 3235 to move outward and engage with the outer frame 3233, so as to mechanically lock the elevator material frame 2 to prevent it from falling, thereby ensuring construction safety in all directions.

[0033] Please refer to Figure 1-Figure 6 A hanging seat 4 is fixedly installed on the top of the elevator material frame 2, and a pulling rope 5 is fixedly installed on the top of the hanging seat 4. The top of the pulling rope 5 is connected to the traction machine at the top of the elevator. In the high-rise building elevator system, a hanging seat 4 is installed on the top of the elevator material frame 2, and the hanging seat 4 is fixedly connected to the pulling rope 5, and the top of the pulling rope 5 is connected to the traction machine at the top of the elevator. When the elevator needs to run, the traction machine starts to run, and the traction wheel is driven to rotate by the motor. Due to the friction between the pulling rope 5 and the traction wheel, as the traction wheel rotates, the pulling rope 5 is pulled. At this time, the hanging seat 4 connected to the pulling rope 5 will be displaced due to the pulling force of the pulling rope 5, thereby driving the elevator material frame 2 fixed thereto to rise or fall.

[0034] Please refer to Figure 1-Figure 6 and Figure 8The electronic limit group 33 includes a slot body 331 and a side clamp 332. The slot body 331 is opened in the middle of the bottom of the elevator frame. A dual-axis motor 333 is fixedly installed in the middle of the slot body 331. The side clamps 332 are fixedly installed on both sides of the bottom of the elevator frame 1. An elastic coupling 334 is fixedly connected to the outer side of the dual-axis motor 333. A connecting shaft 335 is fixedly installed on the outer end of the elastic coupling 334. A worm 336 is fixedly connected to the outer end of the connecting shaft 335. The worm 336 and the side clamp 332 are transmission-connected. Supporting sleeves 337 are fixedly installed at both ends of the slot body 331. The outer end of the connecting shaft 335 is rotatably connected to the inside of the supporting sleeve 337. 2 includes side rails 3321, front clamping arms 3322 and clamping slots 3323, the side rails 3321 are fixedly installed at the lower ends of both sides of the elevator material frame 2, the inner part of the side rails 3321 is rotatably connected with a screw rod 3324, the two ends of the screw rod 3324 are screwed in opposite directions, both ends of the screw rod 3324 are threadedly connected with a movable block 3325, the outer side of the movable block 3325 is fixedly installed with an anti-falling clamping arm 3326, the front clamping arms 3322 are linearly arranged at equal intervals and fixedly connected to the front ends of both sides of the elevator frame 1, the clamping slots 3323 are linearly arranged at equal intervals and are opened on the inner side of the side clamping plate 3231, the clamping slots 3323 penetrate the side clamping plate 3231, and the two anti-falling clamping arms 3326 are respectively inserted into the front clamping arms 332 2 and the inner side of the card slot 3323, the middle part of the screw rod 3324 is fixedly installed with a worm gear 3327, and the worm gear 3327 is connected with the worm 336 in a transmission manner. In the electronic limit group 33 of the elevator, when the elevator fails and the material frame has a tendency to fall, the double-axis motor 333 in the middle slot 331 at the bottom of the elevator frame starts to operate, and the double-axis motor 333 stably transmits power to the connecting shaft 335 through the outer elastic coupling 334, and the worm 336 fixed at the outer end of the connecting shaft 335 rotates accordingly. Since the worm 336 is connected with the worm gear 3327 in the side clamp 332, the worm gear 3327 drives the screw rod 3324 to rotate, and the threads at both ends of the screw rod 3324 rotate in opposite directions. During the rotation, the activities at both ends The block 3325 will move in the opposite direction inside the side rail 3321, and the anti-falling clamp arm 3326 fixed on the outside of the movable block 3325 will also move accordingly. The anti-falling clamp arm 3326 located on the rear side moves backward, and the anti-falling clamp arm 3326 located on the front side moves forward. At this time, the side clamps 332 on both sides of the bottom of the elevator frame 1 play a role, and the side rails 3321 provide tracks for the movement of the movable block 3325 and the anti-falling clamp arm 3326. When the anti-falling clamp arm 3326 moves to a certain position, it corresponds to the front clamp arm 3322 linearly arranged at the front end of both sides of the elevator frame 1 and the clamping groove 3323 linearly arranged on the inner side of the side clamp plate 3231 and penetrating the side clamp plate 3231. The anti-falling clamp arm 3326 is respectively inserted into the top of the front clamp arm 3322 and the inner side of the clamping groove 3323.Thereby, the elevator material frame 2 is firmly clamped to prevent it from falling.

[0035] Please refer to Figure 1-Figure 7The transmission assembly 31 includes a vertical plate 311 and a rotating shaft 312. The vertical plate 311 is fixedly installed on the rear side of the elevator frame 1. The rotating shaft 312 is rotatably connected to the middle of the back side of the elevator material frame 2. A gear 313 is fixedly installed on the rear end of the rotating shaft 312. A rack 314 is fixedly installed on the side of the vertical plate 311 close to the gear 313. The rack 314 is meshed with the gear 313. The back of the gear 313 is connected to the rotation limit group 32. The rotation limit group 32 includes a mounting plate 321. The mounting plate 321 is fixedly installed on the back side of the gear 313. The two sides of the gear 313 are arranged in a ring shape with equal intervals and are provided with slide grooves 322. The inside of the slide groove 322 is fixedly connected with a load-bearing limit group Component 323, the outer side of the load-limiting component 323 is clamped with the elevator frame 1, the load-limiting component 323 includes a side card plate 3231 and a telescopic spring 3232, the telescopic spring 3232 is fixedly installed in the slide groove 322, the side card plate 3231 is fixedly installed on both sides of the back side of the elevator frame 1, the back side of the side card plate 3231 is evenly spaced and linearly arranged and fixedly installed with an outer card frame 3233, the outer card frame 3233 is arranged in a T shape, the outer side of the telescopic spring 3232 is fixedly installed with a load-bearing slide plate 3234, the outer side of the load-bearing slide plate 3234 is fixedly installed with an inner card frame 3235, the shape of the inner card frame 3235 is arranged in an L-shaped hook shape, the back side of the load-bearing slide plate 3234 is fixedly installed A weight-bearing sphere 3236 is fixedly installed, and the internal cross-sectional shapes of the weight-bearing slide plate 3234 and the slide groove 322 are both set to a convex shape. A supporting frame 3237 is fixedly installed on the outer side of the weight-bearing slide plate 3234. The back side of the mounting plate 321 is located on the outer side of the slide groove 322 and is provided with a supporting groove 3238. The supporting frame 3237 is slidably connected to the inside of the supporting groove 3238. The internal cross-sectional shape of the supporting groove 3238 and the cross-sectional shape of the supporting frame 3237 located in the supporting groove 3238 are both set to a convex shape. In the anti-fall system of the present elevator, the transmission assembly 31 and the rotation limit group 32 are closely matched, which provides an important safety guarantee for the elevator material frame 2. When the elevator is operating normally, the elevator material frame 2 moves smoothly and the transmission The assembly 31 and the rotation limit group 32 are in a relatively static preparatory state. Once the elevator fails and the circuit system fails, the elevator material frame 2 falls rapidly due to the acceleration of gravity. At this time, the rotating shaft 312 fixed in the middle of the back side of the elevator material frame 2 moves down accordingly, and the gear 313 fixed at the rear end of the rotating shaft 312 also moves down synchronously. Since the vertical plate 311 is fixedly installed on the rear side of the elevator frame 1, and a rack 314 meshing with it is installed on the side of the vertical plate 311 close to the gear 313, during the downward movement of the gear 313, the rack 314 drives the gear 313 to rotate at a high speed, and the high-speed rotation of the gear 313 drives the mounting plate 321 fixedly installed on the back side thereof to rotate rapidly. The circumferential surface of the mounting plate 321 is annularly arranged with equidistant grooves 322.A load-limiting assembly 323 is provided inside the slide groove 322, and the telescopic spring 3232 in the load-limiting assembly 323 is fixed inside the slide groove 322, and its outer side is connected to a load-bearing slide plate 3234, a load-bearing ball 3236 is installed on the back of the load-bearing slide plate 3234, and an L-shaped hook-shaped inner bracket 3235 is fixed on the outer side of the load-bearing slide plate 3234. As the mounting plate 321 rotates at a high speed, the load-bearing slide plate 3234 and the load-bearing ball 3236 overcome the elastic force of the telescopic spring 3232 and slide outward under the action of centrifugal force. Because the internal cross-sectional shapes of the load-bearing slide plate 3234 and the slide groove 322 are both convex, this ensures that the load-bearing slide plate 3234 can only slide radially along the slide groove 322. At the same time, the supporting frame 3237 on the outer side of the load-bearing slide plate 3234 is installed. The back of the plate 321 slides in the supporting groove 3238 opened on the outside of the slide groove 322. The convex cross-section of the supporting groove 3238 and the supporting frame 3237 further ensures the stability of the movement. When the centrifugal force is large enough, the weight-bearing slide plate 3234 drives the inner card frame 3235 to move outward and rotate until the inner card frame 3235 is accurately buckled onto the T-shaped outer card frame 3233 arranged linearly on the back of the side card plate 3231. Through the tight buckling and limiting of the inner card frame 3235 and the outer card frame 3233, the mounting plate 321 is effectively limited and fixed, and then the rotating shaft 312 connected thereto is also locked and fixed, and finally the elevator material frame 2 is firmly fixed to prevent it from falling further, providing reliable mechanical anti-fall protection for the elevator in emergency situations such as circuit failure.

[0036] The implementation principle of the anti-fall device for a high-rise building construction elevator in the embodiment of the present application is as follows: the electronic limit group 33 in the anti-fall mechanism 3 is innovatively set in the device, which significantly improves the safety protection performance of the elevator during operation. In actual application scenarios, when a sudden failure of the elevator causes the elevator frame 2 to show signs of falling, the acceleration sensor installed inside the elevator frame 2 will quickly capture the movement state of the elevator frame 2. Once it is detected that the elevator frame 2 is in a falling state, the control module immediately starts the dual-axis motor 333 to run, and the dual-axis motor 3 When the connecting shaft 33 is in operation, the output shaft drives the connecting shaft 335 to rotate synchronously. The worm 336 installed at the outer end of the connecting shaft 335 is driven to rotate during the rotation of the connecting shaft 335 inside the supporting sleeve 337. Since the worm 336 and the worm wheel 3327 adopt a precise transmission connection method, the rotation of the worm 336 can drive the worm wheel 3327 to rotate synchronously. The rotation of the worm wheel 3327 further drives the screw rod 3324 to rotate. Since the threads at both ends of the screw rod 3324 rotate in opposite directions, the movable block can be synchronously driven during the rotation of the screw rod 3324. 3325 slides precisely inside the side rail 3321 and the rail frame, and the movable block 3325 moves outward under the drive of the screw rod 3324, thereby pushing the anti-falling clamp arm 3326 to move outward, wherein the anti-falling clamp arm 3326 located on the rear side moves backward, and the anti-falling clamp arm 3326 located on the front side moves forward. During the falling process of the elevator material frame 2, when the outer side of the anti-falling clamp arm 3326 contacts the side clamp plate 3231, the elastic coupling 334 plays a key buffering role, effectively reducing the impact on the dual-axis motor 333. As the elevator material frame 2 continues to fall, When the anti-falling clamp arm 3326 moves downward, when it contacts the clamping slot 3323 and the front clamping arm 3322, the dual-axis motor 333 continues to drive the anti-falling clamp arm 3326 to move outward, so that it is accurately inserted into the clamping slot 3323 and the front clamping arm 3322. Through the tight mutual clamping and limiting between the anti-falling clamp arm 3326 and the clamping slot 3323 and the front clamping arm 3322, the elevator material frame 2 is firmly clamped and fixed, thereby giving the elevator material frame 2 of the device an excellent anti-falling function, which greatly enhances the stability and reliability of the device in the overall application process;

[0037] The device constructs a set of efficient and reliable mechanical anti-fall protection system by cleverly designing the rotation limit group 32 in the anti-fall mechanism 3 and making it closely cooperate with the transmission component 31. In actual use, when the elevator encounters a fault that causes the circuit system to fail, the dual-axis motor 333 cannot work due to loss of power supply, and the electronic limit group 33 loses its function. In this critical situation, under the influence of gravity acceleration, the elevator material frame 2 will fall rapidly. During the falling process of the elevator material frame 2, the gear 313 connected thereto moves downward synchronously. Since the gear 313 and the rack 314 are in a meshing connection mode, and the rack 314 is in a fixed state, the downward movement of the gear 313 prompts the rack 314 to drive the gear 313 to rotate at a high speed, and the gear 313 The high-speed rotation drives the mounting plate 321 to rotate rapidly, thereby swinging the weight-bearing slide plate 3234 located at the inner outer end of the slide groove 322. The weight-bearing slide plate 3234 and the weight-bearing ball 3236 arranged thereon, under the action of the centrifugal force generated by the rotation, are subjected to a large external gravity, prompting the weight-bearing slide plate 3234 and the weight-bearing ball 3236 to overcome the resistance of the telescopic spring 3232 and slide outward. As the weight-bearing slide plate 3234 slides outward, the inner card frame 3235 on its outer side moves outward and rotates synchronously. During the movement, the inner card frame 3235 is precisely buckled onto the outer card frame 3233. Through the close mutual buckling and limiting between the inner card frame 3235 and the outer card frame 3233, the mounting plate 321 on the rear side of the rotating shaft 312 is effectively limited and fixed, and the mounting plate 321 is After the limit is fixed, it further assists in realizing the locking and fixing of the rotating shaft 312. When the rotating shaft 312 is fixed, the elevator material frame 2 can be firmly fixed. It can be seen that the present device fully utilizes the gravity acceleration effect when the elevator material frame 2 falls during the elevator failure, automatically drives the weight-bearing slide plate 3234 and the weight-bearing ball 3236 to move, and prompts the inner clamping frame 3235 to move outward and clamp onto the outer clamping frame 3233. Through the mutual clamping and limiting of this mechanical structure, the lifting mechanism is stably clamped and fixed, realizing the mechanical anti-falling function without the need for additional electric drive. The present device combines the electronic limit group 33 with the rotation limit group 32, and adopts the dual protection design concept of the coordinated work of intelligent limit and mechanical limit, which significantly improves the overall anti-falling performance of the equipment. During normal use, since the elevator frame 2 rises and falls slowly and uniformly inside the elevator frame 1, the rack 314 drives the gear 313 to rotate steadily and slowly, and the speed of the mounting plate 321 is correspondingly slow, and the centrifugal force generated is small, so that the external centrifugal force formed by the weight-bearing ball 3236 and the weight-bearing slide 3234 is insufficient to cause the inner clamping frame 3235 to be clamped with the outer clamping frame 3233, ensuring that the elevator frame 2 can operate normally and smoothly while having a reliable anti-fall function, and comprehensively improving the safety and stability of the device during the overall application process. The control system of the control module of the device adopts an industrial-grade redundant control architecture, configured with B&R X20PLC and Beckhoff CX5140 controller, and supports multi-sensor fusion algorithms.The laser gyroscope (accuracy ±0.001° / h) and high-precision accelerometer (±0.002g) monitor the movement state of the material frame in real time, and the integrated weighing sensor (range 0-5000kg, accuracy ±0.1%FS) realizes dynamic compensation of load.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-rise building construction elevator anti-falling device, characterized in that; It comprises an elevator frame (1), an elevator material frame (2) is movably installed inside the elevator frame (1), an anti-falling mechanism (3) is fixedly installed outside the elevator material frame (2), and the outer side of the anti-falling mechanism (3) is clamped with the elevator frame (1); The anti-fall mechanism (3) comprises a transmission assembly (31), a rotation limit group (32) and an electronic limit group (33); the transmission assembly (31) is mounted on the back of the elevator material frame (2); the rotation limit group (32) is mounted on the back of the transmission assembly (31); the electronic limit group (33) is fixedly mounted on the bottom of the elevator material frame (2); a battery, a control module and an acceleration sensor are provided at the bottom of the elevator material frame (2); and the outer sides of the rotation limit group (32) and the electronic limit group (33) are snap-connected to the elevator frame (1).

2. The anti-falling device for a high-rise building construction elevator according to claim 1 is characterized in that: The transmission assembly (31) comprises a vertical plate (311) and a rotating shaft (312); the vertical plate (311) is fixedly mounted on the rear side of the elevator frame (1); the rotating shaft (312) is rotatably connected to the middle of the back side of the elevator material frame (2); a gear (313) is fixedly mounted on the rear end of the rotating shaft (312); a rack (314) is fixedly mounted on the side of the vertical plate (311) close to the gear (313); the rack (314) is meshingly connected to the gear (313); and the back side of the gear (313) is connected to the rotation limit group (32).

3. The anti-falling device for a high-rise building construction elevator according to claim 2 is characterized in that: The rotation limiting group (32) comprises a mounting plate (321), wherein the mounting plate (321) is fixedly mounted on the back of the gear (313), and the two sides of the gear (313) are provided with slide grooves (322) arranged in a ring shape at equal intervals, and the interior of the slide groove (322) is fixedly connected with a load-bearing limit component (323), and the outer side of the load-bearing limit component (323) is clamped with the elevator frame (1).

4. The anti-falling device for a high-rise building construction elevator according to claim 3 is characterized in that: The load-limiting assembly (323) comprises a side card plate (3231) and a telescopic spring (3232), wherein the telescopic spring (3232) is fixedly installed inside the slide groove (322), and the side card plate (3231) is fixedly installed on both sides of the back side of the elevator frame (1), and the back side of the side card plate (3231) is fixedly installed with an outer card frame (3233) in a linear arrangement at equal intervals, and the outer card frame (3233) is arranged in a T shape, and a load-bearing slide plate (3234) is fixedly installed on the outer side of the telescopic spring (3232), and an inner card frame (3235) is fixedly installed on the outer side of the load-bearing slide plate (3234), and the inner card frame (3235) is arranged in an L-shaped hook shape.

5. The anti-falling device for a high-rise building construction elevator according to claim 4 is characterized in that: A weight-bearing sphere (3236) is fixedly mounted on the back of the weight-bearing slide plate (3234), and the internal cross-sectional shapes of the weight-bearing slide plate (3234) and the slide groove (322) are both configured to be convex.

6. The anti-falling device for a high-rise building construction elevator according to claim 5 is characterized in that: A supporting frame (3237) is fixedly installed on the outer side of the weight-bearing slide plate (3234); a supporting groove (3238) is provided on the back side of the mounting plate (321) and located on the outer side of the slide groove (322); the supporting frame (3237) is slidably connected to the inside of the supporting groove (3238); the internal cross-sectional shape of the supporting groove (3238) and the cross-sectional shape of the supporting frame (3237) located in the supporting groove (3238) are both arranged in a convex shape.

7. The anti-falling device for a high-rise building construction elevator according to claim 4 is characterized in that: The electronic limit group (33) comprises a slot body (331) and a side clamp (332), wherein the slot body (331) is arranged in the middle of the bottom of the elevator frame, a dual-axis motor (333) is fixedly installed in the middle of the interior of the slot body (331), and the side clamp (332) is fixedly installed on both sides of the bottom of the elevator frame (1), and an elastic coupling (334) is fixedly connected to the outer side of the dual-axis motor (333), and a connecting shaft (335) is fixedly installed at the outer end of the elastic coupling (334), and a worm (336) is fixedly connected to the outer end of the connecting shaft (335), and the worm (336) and the side clamp (332) are transmission-connected.

8. The anti-falling device for a high-rise building construction elevator according to claim 7, characterized in that: Both ends of the groove body (331) are fixedly mounted with supporting sleeves (337), and the outer end of the connecting shaft (335) is rotatably connected to the inside of the supporting sleeve (337).

9. The anti-falling device for a high-rise building construction elevator according to claim 8, characterized in that: The side clamp (332) comprises a side rail (3321), a front clamp arm (3322) and a clamping groove (3323); the side rail (3321) is fixedly mounted on the lower ends of both sides of the elevator material frame (2); a screw rod (3324) is rotatably connected inside the side rail (3321); the threads of the two ends of the screw rod (3324) are rotated in opposite directions; both ends of the screw rod (3324) are threadedly connected to a movable block (3325); an anti-fall clamp arm (3326) is fixedly mounted on the outer side of the movable block (3325); the front clamp arm (3321) is fixedly mounted on the lower ends of both sides of the elevator material frame (2); a screw rod (3324) is rotatably connected inside the side rail (3321); the threads of the two ends of the screw rod (3324) are rotated in opposite directions; both ends of the screw rod (3324) are threadedly connected to a movable block (3325); an anti-fall clamp arm (3326) is fixedly mounted on the outer side of the movable block (3325); and the front clamp arm (3321 ...). The front clamping plates (3322) are arranged linearly at equal intervals and fixedly connected to the front ends of both sides of the elevator frame (1); the card slots (3323) are arranged linearly at equal intervals and are opened on the inner side of the side clamping plates (3231); the card slots (3323) penetrate the side clamping plates (3231); the two anti-falling clamping arms (3326) are respectively inserted into the top of the front clamping arm (3322) and the inner side of the card slots (3323); a worm gear (3327) is fixedly installed in the middle of the lead screw (3324); the worm gear (3327) and the worm (336) are transmission connected.

10. The anti-falling device for a high-rise building construction elevator according to claim 9, characterized in that: A hanging seat (4) is fixedly installed on the top of the elevator material frame (2), a pulling rope (5) is fixedly installed on the top of the hanging seat (4), and the top of the pulling rope (5) is connected to the traction machine at the top of the elevator.

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