Anti-falling safety protection structure for hoisting machinery
By designing buffer and clamping components on lifting machinery, and utilizing buffer springs, dampers, and motor-driven clamping devices, the safety hazard of goods falling during lifting operations is solved, achieving stable clamping and buffer protection.
Patent Information
- Application Number
- CN202520079217.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing lifting machinery lacks effective active clamping and fixing devices during lifting, which makes the goods prone to shaking, shifting or falling off, posing serious safety hazards. Furthermore, existing protective measures lack a sound buffer mechanism, leading to damage to equipment and goods.
A protective structure including a buffer component and a clamping component was designed. The buffer component absorbs the fall energy through a buffer spring and a damper, while the clamping component achieves stable clamping through a motor-driven bidirectional threaded rod and a clamping plate, and the support spring enhances the buffering effect.
It effectively reduces the risk of goods falling during hoisting, protects goods and equipment from damage, and ensures safety and stability.
Smart Images
Figure CN223892278U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to advanced manufacturing and automation technical field, concretely is a kind of anti-falling safety protection structure for hoisting machinery. BACKGROUND
[0002] In modern industrial production and construction and many other fields, hoisting machinery plays an indispensable role, and it is widely used in lifting various heavy objects, greatly improving the work efficiency. However, with the increasing use frequency of hoisting machinery and the increasing complexity of lifting goods and working conditions, the falling risk of goods during lifting has become a major safety hazard that needs to be solved.
[0003] The traditional hoisting and lifting method often relies only on hooks or simple rope binding of goods, and lacks effective active clamping fixing devices. During lifting, due to irregular shape of goods, unstable center of gravity or influence of external environmental factors (such as wind, vibration, etc.), it is easy to cause shaking, deviation or even falling, thereby causing serious safety accidents, which not only causes damage to goods, but also may endanger the life safety of personnel below and the integrity of surrounding facilities. And when the accident occurs and the goods fall, the existing hoisting machinery protection measures are mostly single, and lack of perfect buffer mechanism. When the goods fall at high speed under the action of gravity, the huge impact force will directly act on the hoisting machinery structure or the ground, which will cause serious damage to the equipment, increase the equipment maintenance cost, and even may make the equipment scrap, and also cannot effectively protect the goods from devastating impact. UTILITY MODEL CONTENT
[0004] The utility model aims at providing an anti-falling safety protection structure for hoisting machinery, to achieve the purpose of preventing the hoisting machinery from falling.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: an anti-falling safety protection structure for hoisting machinery, comprising a hoisting frame, a controller is arranged on the front surface of the hoisting frame, a driving part is arranged at the bottom of the hoisting frame, a lifting ring one is arranged at the output end of the driving part, and a protection assembly is arranged at the bottom of the lifting ring one.
[0006] Preferably, the protection assembly comprises: a buffer part arranged at the bottom of the lifting ring one; and a clamping part arranged inside the buffer part.
[0007] Preferably, the buffer part comprises: a lifting ring two symmetrically sleeved inside the lifting ring one; and a connecting chain fixedly installed at the bottom of the lifting ring two.
[0008] Preferably, the other end of the connecting chain is fixedly installed with a connecting top plate, the bottom of the connecting top plate is fixedly installed with a protective frame, the bottom of the protective frame is fixedly installed with a connecting base, the back of the protective frame is symmetrically provided with sliding openings, the outer wall of the connecting base is slidably connected with a buffer base, the inner wall of the buffer base is provided with sliding grooves on both sides, the outer wall of the connecting base is fixedly installed with movable plates on both sides, the movable plates are slidably connected with the buffer base through the sliding grooves, the sliding grooves are fixedly installed with dampers inside, the top end of the damper is fixedly connected with the movable plate, the outer wall of the damper is sleeved with a buffer spring, one end of the buffer spring is fixedly connected with the buffer base, and the other end of the buffer spring is fixedly connected with the movable plate.
[0009] Through the cooperation of the buffer spring and the damper, the buffer effect can be automatically adjusted according to the weight of different goods and the different impact strength generated by falling at different heights.
[0010] Preferably, the inner wall of the buffer base is uniformly fixedly installed with support outer cylinders at the bottom, the inside of the support outer cylinders is fixedly installed with guide short rods, the outer wall of the guide short rod is slidably connected with a limiting ring, the limiting ring is slidably connected with the support outer cylinder, the outer wall of the guide short rod is sleeved with a support spring, one end of the support spring is fixedly connected with the buffer spring, and the other end of the support spring is fixedly connected with the limiting ring, the top of the limiting ring is fixedly installed with a support inner column, the top end of the support inner column is movably penetrated through the inner wall top of the buffer spring and extends to the outer wall top of the buffer spring, and is fixedly connected with the connecting base, the inside of the support inner column is provided with a connecting hole, and the support inner column is slidably sleeved with the guide short rod through the connecting hole.
[0011] The support spring and the buffer spring work cooperatively, and the buffer capacity of the whole is further enhanced. When the protective frame is impacted by falling, the buffer spring is compressed first to absorb part of the energy and slow down the falling speed. At the same time, the support spring is also compressed, and since one end of the support spring is connected with the buffer spring and the other end is connected with the support inner column through the limiting ring, the support spring can provide additional buffer force in different directions to disperse and absorb the energy generated by the falling impact from multiple angles.
[0012] Preferably, the clamping component comprises: a motor fixedly installed on the back of the protective frame; a fixed vertical plate fixedly installed on the back of the protective frame; and a connecting vertical plate fixedly installed on the back of the protective frame.
[0013] Preferably, the output end of the motor is provided with a rotating shaft, the other end of the rotating shaft is rotatably connected with the fixed vertical plate through a bearing, the outer wall of the rotating shaft is fixedly sleeved with a gear one, the connecting vertical plates are movably provided with a bidirectional threaded rod, the two ends of the bidirectional threaded rod are movably penetrated through the inner sides of the connecting vertical plates and extend to the outer sides of the connecting vertical plates and are rotatably connected with the connecting vertical plates through bearings, the middle end of the bidirectional threaded rod is fixedly sleeved with a gear two, the gear two is meshedly connected with the gear one, the outer wall of the bidirectional threaded rod is symmetrically screw-connected with a moving plate on the two sides, one side of the moving plate is fixedly provided with a sliding block, the other side of the sliding block is movably penetrated through the sliding opening and is fixedly provided with a clamping plate one, and the opposite side of the clamping plate one is fixedly provided with a rubber pad one.
[0014] The motor drives the rotating shaft to rotate, the gear one and the gear two are meshedly connected to drive the bidirectional threaded rod to rotate, so that the moving plates which are symmetrically screw-connected on the outer wall of the bidirectional threaded rod move in opposite directions.
[0015] Preferably, the other side of the clamping plate one is provided with a receiving groove, the inside of the clamping plate one is fixedly provided with a micro motor, the inside of the clamping plate one is fixedly provided with a guide long rod in a symmetrical manner, the other end of the guide long rod is fixedly provided with a limiting disc, the output end of the micro motor is provided with a threaded rod, the outer wall of the threaded rod is screw-connected with a movable inner plate, the movable inner plate is slidably sleeved with the guide long rod, the movable inner plate is slidably connected with the clamping plate one through the receiving groove, the other side of the movable inner plate is fixedly provided with a clamping plate two, and the inside of the clamping plate two is fixedly provided with a rubber pad two.
[0016] The micro motor drives the threaded rod to rotate, so that the movable inner plate slides along the guide long rod in the receiving groove of the clamping plate one, thereby driving the clamping plate two to move relative to the clamping plate one, and fine adjustment of the clamping gap is realized.
[0017] The utility model provides a kind of anti-falling safety protection structure for hoisting machinery. It has the following beneficial effects:
[0018] (1), the utility model starts by motor, drives rotating shaft to rotate, gear one on rotating shaft is engaged with gear two on bidirectional threaded rod transmission, so that bidirectional threaded rod rotates, when bidirectional threaded rod rotates, its outer wall two sides symmetrically screw-connected moving plate will move along bidirectional threaded rod to opposite direction, to drive clamping plate one to the goods for clamping, micro motor starts, drives threaded rod to rotate, so that movable inner plate slides along guide long rod in the receiving groove of clamping plate one, to drive clamping plate two to move relative to clamping plate one, adjust clamping gap, rubber pad two also play the role of protection goods and increase friction, ensure that goods is firmly clamped in protective frame, reach the effect that the risk of falling of goods in hoisting process is reduced.
[0019] (2), the utility model discloses when the protection frame is impacted by the downward falling impact force, the connecting base will slide downwards relative to the buffer base, at this time, the damper and the buffer spring start to play a role, the buffer spring is compressed first, absorbs part of the falling kinetic energy through elastic deformation, converts the impact force into the elastic potential energy of the spring, thereby slows down the falling speed of the protection frame, the damper generates resistance in the compression process of the buffer spring, limits the compression speed of the spring, makes the buffering process more stable, avoids the rebound force caused by the excessive compression of the spring from causing secondary damage to the equipment, simultaneously, the support inner column slides in the support outer cylinder along the guide short rod, the support spring is compressed too, further enhances the buffering effect, disperses the falling impact force, reaches the effect that the goods in the protection frame are protected through buffering. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is whole structure perspective diagram of the utility model;
[0021] Figure 2 It is protection assembly structure section view of the utility model;
[0022] Figure 3 It is clamping part structure section view of the utility model;
[0023] Figure 4 It is clamping part local structure section view of the utility model.
[0024] In the drawing: 1 hoist frame, 2 controller, 3 drive piece, 4 lifting ring one, 5 protection assembly;
[0025] 51 buffer part, 511 lifting ring two, 512 connecting chain, 513 connecting top plate, 514 protection frame, 515 connecting base, 516 buffer base, 517 movable plate, 518 damper, 519 buffer spring, 5111 support outer cylinder, 5112 guide short rod, 5113 limit ring, 5114 support inner column, 5115 support spring;
[0026] 52 clamping part, 521 motor, 522 fixed vertical plate, 523 rotating shaft, 524 gear one, 525 connecting vertical plate, 526 bidirectional screw rod, 527 gear two, 528 moving plate, 529 sliding block, 5211 clamping plate one, 5212 rubber pad one, 5213 micro motor, 5214 screw rod, 5215 guide long rod, 5216 limit round plate, 5217 movable inner plate, 5218 clamping plate two, 5219 rubber pad two. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0028] Examples of the described embodiments are shown in the drawings, wherein the same or similar notations are used to denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.
[0029] Embodiment one:
[0030] The preferred embodiment of the anti-falling safety protection structure for hoisting machinery provided by the present application is as follows Figures 1-4As shown: a kind of anti-falling safety protection structure for hoisting machinery, including hoisting frame 1, the front of hoisting frame 1 is provided with controller 2, the bottom of hoisting frame 1 is provided with driving element 3, the output end of driving element 3 is provided with lifting ring one 4, the bottom of lifting ring one 4 is provided with protection assembly 5, protection assembly 5 includes: buffer component 51, is set to the bottom of lifting ring one 4;Clamping component 52 is arranged in the inside of buffer component 51;Buffer component 51 includes: lifting ring two 511, symmetrically set in the inside of lifting ring one 4;Connecting chain 512 is fixedly installed at the bottom of lifting ring two 511;The other end of connecting chain 512 is fixedly installed with connecting top plate 513, the bottom of connecting top plate 513 is fixedly installed with protection frame 514, the bottom of protection frame 514 is fixedly installed with connecting base 515, the back of protection frame 514 is symmetrically provided with sliding port, the outer wall of connecting base 515 is slidably connected with buffer base 516, the inner wall of buffer base 516 is provided with sliding slot on both sides, respectively, the outer wall of connecting base 515 is fixedly installed with movable plate 517 on both sides, respectively, movable plate 517 is slidably connected with buffer base 516 by sliding slot, the inside of sliding slot is fixedly installed with damper 518, the top of damper 518 is fixedly connected with movable plate 517, damper 518 is provided with buffer spring 519 on the outer wall, one end of buffer spring 519 is fixedly connected with buffer base 516, the other end of buffer spring 519 is fixedly connected with movable plate 517, the inner wall bottom of buffer base 516 is uniformly fixedly installed with support outer cylinder 5111, support outer cylinder 5111 is fixedly installed with guide short rod 5112 in the inside, the outer wall of guide short rod 5112 is slidably connected with limit ring 5113, limit ring 5113 is slidably connected with support outer cylinder 5111, guide short rod 5112 is provided with support spring 5115 on the outer wall, one end of support spring 5115 is fixedly connected with buffer spring 519, the other end of support spring 5115 is fixedly connected with limit ring 5113, limit ring 5113 is fixedly installed with support inner column 5114 on the top, the top of support inner column 5114 movably penetrates the inner wall top of buffer spring 519 and extends to the outer wall top of buffer spring 519, and is fixedly connected with connecting base 515, connecting hole is arranged in the inside of support inner column 5114, support inner column 5114 is slidably set with guide short rod 5112 by connecting hole.
[0031] Furthermore, in this embodiment, the motor 521 starts, driving the rotating shaft 523 to rotate. Gear 524 on the rotating shaft 523 meshes with gear 527 on the bidirectional threaded rod 526, causing the bidirectional threaded rod 526 to rotate. When the bidirectional threaded rod 526 rotates, the movable plates 528, symmetrically threaded on both sides of its outer wall, move in opposite directions along the bidirectional threaded rod 526. Because the slider 529 engages with the sliding opening on the back of the protective frame 514, the movable plates 528 can only move linearly, thereby driving the clamping plate 5211 to clamp the goods. The rubber pad 5212 can increase the clamping plate 5211's gripping capacity. The friction and cushioning between 5211 and the cargo prevent damage to the cargo during clamping. After clamping both sides of the cargo, the micro motor 5213 starts, driving the threaded rod 5214 to rotate, causing the movable inner plate 5217 to slide along the guide rod 5215 in the storage groove of clamping plate 1 5211, thereby driving clamping plate 2 5218 to move relative to clamping plate 1 5211, adjusting the clamping gap. Rubber pad 2 5219 also plays the role of protecting the cargo and increasing friction, ensuring that the cargo is firmly clamped in the protective frame 514, further reducing the risk of the cargo falling during hoisting.
[0032] Example 2:
[0033] Based on Embodiment 1, a preferred embodiment of the fall protection structure for lifting machinery provided by this utility model is as follows: Figures 1-4As shown: The clamping component 52 includes: a motor 521, fixedly installed on the back of the protective frame 514; a fixed vertical plate 522, fixedly installed on the back of the protective frame 514; and connecting vertical plates 525, symmetrically fixedly installed on the back of the protective frame 514. The output end of the motor 521 is provided with a rotating shaft 523, the other end of which is rotatably connected to the fixed vertical plate 522 via a bearing. A gear 524 is fixedly sleeved on the outer wall of the rotating shaft 523. A bidirectional threaded rod 526 is movably arranged between the connecting vertical plates 525. Both ends of the bidirectional threaded rod 526 movably penetrate the inner side of the connecting vertical plate 525 and extend to the outer side of the connecting vertical plate 525, and are rotatably connected to the connecting vertical plate 525 via bearings. A gear 527 is fixedly sleeved at the middle end of the bidirectional threaded rod 526, and the gear 527 meshes with the gear 524. Moving plates 528 are symmetrically threaded on both sides of the outer wall of the bidirectional threaded rod 526. One side of the moving plate 528 is fixedly mounted... The device is equipped with a slider 529, with the other side of the slider 529 movably passing through the sliding opening and a clamping plate 5211 fixedly installed thereon. A rubber pad 5212 is fixedly installed on the opposite side of the clamping plate 5211. A storage slot is provided on the other side of the clamping plate 5211. A micro motor 5213 is fixedly installed inside the clamping plate 5211. Guide rods 5215 are symmetrically fixedly installed inside the clamping plate 5211, and a [missing information - likely a device or component] is fixedly installed at the other end of the guide rods 5215. The limiting circular plate 5216 and the output end of the micro motor 5213 are provided with a threaded rod 5214. The outer wall of the threaded rod 5214 is threadedly connected to a movable inner plate 5217. The movable inner plate 5217 is slidably sleeved with the guide rod 5215. The movable inner plate 5217 is slidably connected to the clamping plate 1 5211 through a storage groove. The other side of the movable inner plate 5217 is fixedly installed with a clamping plate 2 5218. The inner side of the clamping plate 2 5218 is fixedly installed with a rubber pad 2 5219.
[0034] Furthermore, in this embodiment, when the protective frame 514 is subjected to a downward falling impact force, the connecting base 515 will slide downward relative to the buffer base 516. At this time, the damper 518 and the buffer spring 519 begin to function. The buffer spring 519 is first compressed, absorbing part of the falling kinetic energy through elastic deformation, converting the impact force into the elastic potential energy of the spring, thereby slowing down the descent speed of the protective frame 514. The damper 518 generates resistance during the compression process of the buffer spring 519, limiting the compression speed of the spring, making the buffering process more stable, and avoiding secondary damage to the equipment caused by the rebound force generated by the excessive compression of the spring. At the same time, the inner support column 5114 slides along the guide rod 5112 inside the outer support cylinder 5111, and the support spring 5115 is also compressed, further enhancing the buffering effect, dispersing the falling impact force, and protecting the goods inside the protective frame 514.
[0035] In use, the lifting ring 4 is connected to the drive unit 3 at the bottom of the crane frame 1. The protective frame 514 and its related components are suspended via the lifting ring 511 and the connecting chain 512. The connecting top plate 513 and the connecting base 515 provide a stable upper and lower connection structure for the protective frame 514, enabling it to withstand possible impacts from falling objects. The goods to be lifted are placed inside the protective frame 514. The motor 521 starts, driving the rotating shaft 523 to rotate. The gear 524 on the rotating shaft 523 meshes with the gear 527 on the double-threaded rod 526, causing the double-threaded rod 526 to rotate. When rod 526 rotates, the movable plates 528, symmetrically threaded on both sides of its outer wall, move in opposite directions along the bidirectional threaded rod 526. Because the slider 529 engages with the sliding opening on the back of the protective frame 514, the movable plates 528 can only move linearly, thereby driving the clamping plate 5211 to clamp the goods. The rubber pad 5212 increases the friction and cushioning between the clamping plate 5211 and the goods, preventing damage to the goods during clamping. After clamping both sides of the goods, the micro motor 5213 starts, driving the threaded rod 5214 to rotate, causing the movable inner plate 5217 to move along the guide... The long rod 5215 slides within the storage slot of the clamping plate 5211, thereby moving the clamping plate 5218 relative to the clamping plate 5211 to adjust the clamping gap. The rubber pad 5219 also serves to protect the goods and increase friction, ensuring that the goods are securely clamped within the protective frame 514, further reducing the risk of the goods falling during hoisting. When the protective frame 514 is subjected to a downward impact force, the connecting base 515 slides downward relative to the buffer base 516. At this time, the damper 518 and the buffer spring 519 begin to function, with the buffer spring 519 being compressed first. The damper 518 absorbs some of the falling kinetic energy through elastic deformation, converting the impact force into the elastic potential energy of the spring, thereby slowing down the descent speed of the protective frame 514. The damper 518 generates resistance during the compression of the buffer spring 519, limiting the compression speed of the spring and making the buffering process smoother. This avoids secondary damage to the equipment caused by the rebound force generated by the excessive compression of the spring. At the same time, the inner support column 5114 slides along the guide rod 5112 inside the outer support cylinder 5111, and the support spring 5115 is also compressed, further enhancing the buffering effect, dispersing the falling impact force, and protecting the goods inside the protective frame 514.
[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A fall protection structure for lifting machinery, comprising a crane frame (1), characterized in that: A controller (2) is provided on the front of the crane frame (1), a drive unit (3) is provided at the bottom of the crane frame (1), a lifting ring (4) is provided at the output end of the drive unit (3), and a protective component (5) is provided at the bottom of the lifting ring (4). The protective component (5) includes: A buffer component (51) is provided at the bottom of the lifting ring (4); The clamping component (52) is disposed inside the buffer component (51); The buffer component (51) includes: The second lifting ring (511) is symmetrically fitted inside the first lifting ring (4); The connecting chain (512) is fixedly installed at the bottom of the second lifting ring (511).
2. The fall protection structure for lifting machinery according to claim 1, characterized in that: A connecting top plate (513) is fixedly installed at the other end of the connecting chain (512). A protective frame (514) is fixedly installed at the bottom of the connecting top plate (513). A connecting base (515) is fixedly installed at the bottom of the protective frame (514). A sliding opening is symmetrically provided on the back of the protective frame (514). A buffer base (516) is slidably connected to the outer wall of the connecting base (515). Sliding grooves are provided on both sides of the inner wall of the buffer base (516). The outer walls of the connecting base (515) are slidably connected to the buffer base (516). Movable plates (517) are fixedly installed on each of the three plates. The movable plates (517) are slidably connected to the buffer base (516) through a sliding groove. A damper (518) is fixedly installed inside the sliding groove. The top of the damper (518) is fixedly connected to the movable plate (517). A buffer spring (519) is sleeved on the outer wall of the damper (518). One end of the buffer spring (519) is fixedly connected to the buffer base (516), and the other end of the buffer spring (519) is fixedly connected to the movable plate (517).
3. The fall protection structure for lifting machinery according to claim 2, characterized in that: A supporting outer cylinder (5111) is uniformly fixedly installed on the bottom of the inner wall of the buffer base (516). A guide rod (5112) is fixedly installed inside the supporting outer cylinder (5111). A limit ring (5113) is slidably connected to the outer wall of the guide rod (5112). The limit ring (5113) is slidably connected to the supporting outer cylinder (5111). A supporting spring (5115) is sleeved on the outer wall of the guide rod (5112). One end of the supporting spring (5115) is fixedly connected to the buffer spring (519). The other end of the support spring (5115) is fixedly connected to the limiting ring (5113). The top of the limiting ring (5113) is fixedly installed with a support inner column (5114). The top end of the support inner column (5114) moves through the top of the inner wall of the buffer spring (519) and extends to the top of the outer wall of the buffer spring (519), and is fixedly connected to the connecting base (515). A connecting hole is opened inside the support inner column (5114). The support inner column (5114) is slidably sleeved with the guide short rod (5112) through the connecting hole.
4. The fall protection structure for lifting machinery according to claim 1, characterized in that: The clamping component (52) includes: The motor (521) is fixedly installed on the back of the protective frame (514); The fixed vertical plate (522) is fixedly installed on the back of the protective frame (514); The connecting vertical plate (525) is symmetrically fixed on the back of the protective frame (514).
5. The fall protection structure for lifting machinery according to claim 4, characterized in that: The output end of the motor (521) is provided with a rotating shaft (523). The other end of the rotating shaft (523) is rotatably connected to the fixed vertical plate (522) through a bearing. A gear (524) is fixedly sleeved on the outer wall of the rotating shaft (523). A bidirectional threaded rod (526) is movably arranged between the connecting vertical plates (525). The two ends of the bidirectional threaded rod (526) respectively movably pass through the inner side of the connecting vertical plate (525) and extend to the outer side of the connecting vertical plate (525), and are rotatably connected to the connecting vertical plate (525) through a bearing. A gear two (527) is fixedly sleeved at the middle end of the bidirectional threaded rod (526). The gear two (527) is meshed with the gear one (524). The outer walls of the bidirectional threaded rod (526) are symmetrically threaded with movable plates (528). A slider (529) is fixedly installed on one side of the movable plate (528). The other side of the slider (529) movably passes through the sliding opening and is fixedly installed with a clamping plate one (5211). A rubber pad one (5212) is fixedly installed on the opposite side of the clamping plate one (5211).
6. The fall protection structure for lifting machinery according to claim 5, characterized in that: A storage groove is provided on the other side of the clamping plate one (5211). A micro motor (5213) is fixedly installed inside the clamping plate one (5211). A guide rod (5215) is symmetrically fixedly installed inside the clamping plate one (5211). A limit plate (5216) is fixedly installed at the other end of the guide rod (5215). A threaded rod (5214) is provided at the output end of the micro motor (5213). A movable inner plate (5217) is threadedly connected to the outer wall of the threaded rod (5214). The movable inner plate (5217) is slidably sleeved with the guide rod (5215). The movable inner plate (5217) is slidably connected to the clamping plate one (5211) through the storage groove. A clamping plate two (5218) is fixedly installed on the other side of the movable inner plate (5217). A rubber pad two (5219) is fixedly installed on the inner side of the clamping plate two (5218).