A safety type falling prevention hanging basket for construction site

Abstract

A kind of anti-falling safety type hanging basket for construction site construction belongs to the field of building construction technology, in order to solve the anti-falling structure in hanging basket is mostly by using power and electrical equipment to start and drive, in actual use, still exist such as power failure cannot start and electronic equipment failure etc. Safety hazard, not only the use of high production cost, simultaneously, the problem of construction personnel regular maintenance inspection consumes manpower, the top of lower bottom plate is fixedly installed with support frame in the application, and fence is fixedly installed on support frame, the upper end of support frame is fixedly installed with upper top plate, and the top surface middle part of upper top plate is fixedly installed with hanging box, and rope assembly is installed in the inner cavity of hanging box, the two sides middle part of lower bottom plate top surface is respectively provided with double doors, the inner cavity of one side middle part of hanging box is installed with anti-falling assembly, the safety of the staff is not only guaranteed, the use safety of hanging basket is improved, simultaneously, the use and manufacturing cost are low, it is convenient for promotion.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a fall-prevention safety suspended platform for construction sites. Background Technology

[0002] The site where construction work is carried out is called a "construction site" or "construction site". Due to the height of the building, in order to facilitate the construction workers to enter each floor of the building and to carry out construction on the exterior facade, it is usually necessary to use suspended platforms to assist in construction. Suspended platforms are commonly used construction machinery in high-altitude operations of construction projects. They can be used to carry objects and people and can replace traditional scaffolding. They can reduce labor intensity, improve work efficiency, and can be reused.

[0003] Current methods for lifting suspended platforms typically involve using a motor to drive a winding roller, which then winds up the lifting rope to suspend the platform. To ensure safety, fall arrest mechanisms are usually installed to prevent falls in case the motor loses power. Existing fall arrest methods include self-braking of the motor and auxiliary braking using an independent external electric braking structure. However, these fall arrest mechanisms rely on electricity and electrical equipment for starting and driving, which can lead to issues such as failure to start during power outages or malfunction of electronic equipment. This leaves safety hazards unavoidable during use. Furthermore, these fall arrest platforms are not only costly to produce but also require regular maintenance and inspection by construction personnel, consuming manpower and making them inconvenient to use.

[0004] To address the above issues, a fall-prevention safety suspended platform for construction sites is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a fall-prevention safety suspended platform for construction sites. By using this device, the problem of fall-prevention structures in suspended platforms, which mostly rely on electricity and electrical equipment for starting and driving, still exists in actual use. However, there are still safety hazards such as failure to start during power outages and malfunction of electronic equipment. This not only results in high production costs but also requires construction personnel to perform regular maintenance and inspections, which is labor-intensive and inconvenient to use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fall-prevention safety suspended platform for construction sites, comprising a lower base plate, a support frame fixedly installed on the top of the lower base plate, a railing fixedly installed on the support frame, an upper top plate fixedly installed at the upper end of the support frame, a hanging box fixedly installed at the center of the top surface of the upper top plate, a rope assembly installed in the inner cavity of the hanging box, double doors respectively provided at the center of both sides of the top surface of the lower base plate, the double doors respectively installed between the support frames, and a fall-prevention component installed in the inner cavity of one side of the hanging box;

[0007] The rope assembly includes take-up rollers movably installed at both ends of the inner cavity of the hanging box, and a connecting shaft is fixedly installed on the outer wall of the middle part of the inner end of the take-up roller, and a first bevel gear is fixedly installed at the inner end of the connecting shaft. A hanging rope is wound on the take-up roller, and a drive motor is embedded and fixedly installed on the inner wall of the middle part of the inner cavity of the hanging box, and a second bevel gear is fixedly installed at the output end of the drive motor. The second bevel gear is meshed with the first bevel gear.

[0008] The fall arrestor assembly includes a T-shaped locking shaft slidably installed on one side of the middle cavity of the hanging box, and a limiting locking pulley. The other end of the T-shaped locking shaft is fixedly installed on the outer wall of the middle of the second bevel gear, and the limiting locking pulley is located on the outer side of the T-shaped locking shaft. A load-bearing push block is slidably installed on one side of the middle cavity of the hanging box, and the outer end of the limiting locking pulley is inserted into and slidably installed in the load-bearing push block.

[0009] Furthermore, an inner mounting groove is provided in the middle of the inner cavity of the hanging box, and connecting holes are provided at both ends of the top surface of the hanging box, which are connected to the inner mounting groove. A middle sliding groove is provided on one side of the inner wall of the middle cavity of the inner mounting groove, and an inner sliding groove is provided on one side of the inner wall of the middle sliding groove. A first connecting bearing is installed at both ends of the middle cavity of the inner mounting groove, and a second connecting bearing is installed on the inner side of the middle sliding groove. Several transverse sliding grooves are provided on the inner wall of the middle sliding groove.

[0010] Furthermore, the snap-fit ​​shaft includes a T-shaped shaft and a first triangular snap ring fixedly installed on the outer wall of one side end of the T-shaped shaft, and the T-shaped shaft is movably installed on the second connecting bearing through it. Several triangular snap-fit ​​grooves are evenly provided on the outer peripheral wall of one side end of the T-shaped shaft.

[0011] Furthermore, the limiting locking pulley includes a circular pulley and several L-shaped sliders respectively fixedly installed on the outer circumference of the circular pulley. The L-shaped sliders are slidably disposed in the transverse groove by ball bearings. A second triangular retaining ring is fixedly installed on the inner outer wall of the circular pulley. A push block is fixedly installed on the middle outer wall of the outer side of the circular pulley. Pushing balls are respectively provided on the outer walls of the two ends of the push block. A receiving connecting groove is provided on the bottom surface of the inner end of the L-shaped slider. A multi-faceted locking block is elastically slidably installed at the inner cavity opening of the receiving connecting groove by a compression spring. The multi-faceted locking blocks are respectively disposed on the outer circumference of one side end of the T-shaped shaft.

[0012] Furthermore, the load-bearing push block is longitudinally slidably disposed in the inner groove by means of ball bearings. A pushing groove is provided on the outer wall of the middle part of the inner side of the load-bearing push block, and inclined grooves are respectively provided on the inner walls of both ends of the inner cavity of the pushing groove, and the pushing ball bearings are respectively disposed in the inclined grooves.

[0013] Furthermore, four compressed air grooves are respectively provided on both sides of the bottom surface of the lower base plate, and compressed air grooves are also provided at both ends of the bottom surface of the lower base plate. Several air storage grooves are provided in the inner cavity of the lower base plate, and the air storage grooves are respectively provided corresponding to the compressed air grooves. The air storage grooves and the compressed air grooves are connected through air inlets. A first one-way valve is installed in the air inlet. Several second one-way valves are respectively provided on the outer walls of both ends of the lower base plate, and the second one-way valves are respectively connected to the compressed air grooves. Several inflation protection components are installed on the lower base plate, and the inflation protection components are respectively provided in the compressed air grooves.

[0014] Furthermore, the support frame includes a long support rod and short support rods fixedly installed at both ends of the middle of the top surface of the bottom plate. The lower end of the F-type tee groove is connected to the air storage inner groove. A tee straight groove is provided in the inner cavity of the short support rod. Threaded sleeves are sealed and fixedly installed at the opening positions of the upper ends of the F-type tee groove and the tee straight groove. Threaded caps are installed on the outer periphery of the threaded sleeves through thread sealing.

[0015] Furthermore, the fence includes horizontal rails and vertical rails fixedly installed on the bottom surface of the horizontal rails. A sealing plate is fixedly installed on the bottom surface of one end of each horizontal rail, and the sealing plate is connected to the F-type tee groove through the sealing hole. An L-shaped sealing plate is embedded in the upper end of the inner side of each horizontal rail. A corner groove is provided at the upper end of the inner side of each horizontal rail, and several semi-circular slots are provided on the inner walls of both ends of the outer side of the corner groove. A sealing inner sliding groove is provided at the upper end of the inner cavity of the sealing plate, and the sealing inner sliding groove is connected to the sealing hole through the inner horizontal sliding hole. Several semi-circular blocks are fixedly installed on the outer walls of both ends of the L-shaped sealing plate, and the semi-circular blocks are respectively engaged in the semi-circular slots.

[0016] Furthermore, the inflatable protection assembly includes a piston rod and an airbag embedded in the inner cavity of the corner groove, and the airbag is connected to the F-type three-way groove. The piston rod is elastically and slidably installed in the compressed air bottom groove by a connecting spring.

[0017] Furthermore, an inertial blocking assembly is installed in the inner cavity of the sealing inner slide groove. The inertial blocking assembly includes a blocking load block and a T-shaped blocking block that is laterally slidably installed in the inner transverse slide hole. The front end of the T-shaped blocking block is sealed in the F-shaped tee groove. The connection method between the blocking load block and the T-shaped blocking block is the same as the connection method between the limiting locking pulley and the load push block. The position and connection method of the inflatable protection assembly and the inertial blocking assembly in the double door are the same as the position and connection method of the inflatable protection assembly and the inertial blocking assembly in the fence. The tee straight groove is connected to the inner cavity of the double door through a ventilation hose.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: When the suspended platform loses power and falls, the entire suspended platform will descend rapidly. Under the action of inertia, the load-bearing push block will move upward relative to the suspended box, driving the entire limiting locking pulley to slide in the direction of the locking shaft, thereby realizing the locking between the limiting locking pulley and the locking shaft, causing the T-shaped locking shaft to stop rotating. Furthermore, under the meshing action of the second bevel gear and the first bevel gear, the winding roller will also stop rotating, thus fixing the position of the suspended platform in time and preventing the suspended platform from continuing to fall. When the drive motor restores power, the entire anti-fall component can be reset under the action of the weight of the load-bearing push block itself. This setting not only ensures the safety of the staff and improves the safety of the suspended platform, but also cleverly utilizes the inertia of the suspended platform when it falls, can be automatically activated instantly, has low use and manufacturing costs, and is easy to promote. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is an overall front view of the present invention;

[0021] Figure 3 This is a side sectional view of the hanging box of the present invention;

[0022] Figure 4 This is a side sectional view of the middle part of the hanging box of the present invention;

[0023] Figure 5 This is a schematic diagram of the T-shaped snap-fit ​​shaft and the limiting snap-fit ​​pulley in the snap-fit ​​state of the present invention;

[0024] Figure 6 This is a side view of the multi-faceted card block and triangular card slot of the present invention in a card-connection state.

[0025] Figure 7 This is a front view of the multi-faceted card block and triangular card slot of the present invention in a card-connection state.

[0026] Figure 8 This is a three-dimensional structural diagram of the T-type snap-fit ​​rotating shaft of the present invention;

[0027] Figure 9 This is a schematic diagram of the three-dimensional disassembled structure of the limiting snap-fit ​​pulley and the load-bearing push block of the present invention;

[0028] Figure 10 This is a cross-sectional view showing the connection between the bottom plate, support frame, and fence of the present invention;

[0029] Figure 11 For the present invention Figure 10 Enlarged view of point A;

[0030] Figure 12This is a three-dimensional structural diagram of the piston column of the present invention;

[0031] Figure 13 This is a three-dimensional structural diagram of the lower base plate of the present invention;

[0032] Figure 14 For the present invention Figure 13 Enlarged view of point B;

[0033] Figure 15 This is a schematic diagram of the three-dimensional structure of the L-shaped sealing plate of the present invention.

[0034] In the diagram: 1. Lower base plate; 11. Compressed air trough; 12. Inner air storage trough; 13. Air inlet; 14. First one-way valve; 15. Second one-way valve; 2. Support frame; 21. Long support rod; 22. Short support rod; 23. F-type tee groove; 24. Sealing hole; 25. Tee straight groove; 26. Ventilation hose; 27. Threaded sleeve; 28. Threaded cap; 3. Upper top plate; 4. Fence; 41. Horizontal fence; 411. Corner groove; 412. Semicircular slot; 42. Longitudinal retaining bar; 43. Sealing plate; 431. Sealing inner sliding groove; 432. Inner transverse sliding hole; 44. L-shaped sealing plate; 441. Semicircular locking block; 5. Hanging box; 51. Installation inner groove; 52. Connecting hole; 53. Middle sliding groove; 531. Transverse sliding groove; 54. Inner sliding groove; 55. First connecting bearing; 56. Second connecting bearing; 6. Rope assembly 61. Rewinding roller; 62. Connecting shaft; 63. First bevel gear; 64. Suspension rope; 65. Drive motor; 66. Second bevel gear; 7. Double door; 8. Anti-fall assembly; 81. T-shaped locking shaft; 811. T-shaped shaft; 812. First triangular retaining ring; 813. Triangular retaining groove; 82. Restricting retaining pulley; 821. Circular pulley; 822. Second triangular retaining ring; 823. L-shaped slider; 8231. Rewinding connecting groove; 8232. Multi-faceted retaining block; 8233. Compression spring; 824. Push block; 825. Pushing ball; 83. Weighted push block; 831. Pushing groove; 832. Inclined slide groove; 9. Inflatable protection assembly; 91. Piston column; 92. Connecting spring; 93. Airbag; 10. Inertial sealing assembly; 101. Sealing weight block; 102. T-shaped sealing block. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] To address the issue that most fall protection structures in suspended platforms rely on electricity and electrical equipment for starting and operation, safety hazards such as inability to start during power outages and electronic equipment malfunctions still exist in actual use. This not only results in high production costs but also requires regular maintenance and inspection by construction personnel, consuming manpower and presenting technical challenges to usability. Figures 1-9 As shown, the following preferred technical solutions are provided:

[0037] A fall-prevention safety suspended platform for construction sites includes a lower base plate 1, a support frame 2 fixedly installed on the top of the lower base plate 1, a railing 4 fixedly installed on the support frame 2, an upper top plate 3 fixedly installed at the upper end of the support frame 2, a hanging box 5 fixedly installed at the middle of the top surface of the upper top plate 3, a rope assembly 6 installed in the inner cavity of the hanging box 5, double doors 7 respectively provided at the middle of both sides of the top surface of the lower base plate 1, and the double doors 7 respectively installed between the support frames 2, and a fall-prevention component 8 installed in the inner cavity of one side of the hanging box 5.

[0038] The inner cavity of the hanging box 5 is provided with an inner mounting groove 51 in the middle. The two ends of the top surface of the hanging box 5 are respectively provided with connecting holes 52, which are staggered and connected to the inner mounting groove 51. The inner wall of the middle part of the inner cavity of the inner mounting groove 51 is provided with a middle sliding groove 53, and the inner wall of the middle sliding groove 53 is provided with an inner sliding groove 54. The two ends of the middle part of the inner cavity of the inner mounting groove 51 are respectively installed with a first connecting bearing 55, and the inner side of the middle sliding groove 53 is installed with a second connecting bearing 56. The inner wall of the middle sliding groove 53 is provided with several transverse sliding grooves 531. The first connecting bearing 55 and the second connecting bearing 56 can support the connecting shaft 62 and the T-shaped clamping shaft 81 respectively while ensuring rotation.

[0039] The rope assembly 6 includes take-up rollers 61 movably installed at both ends of the inner cavity of the hoisting box 5. A connecting shaft 62 is fixedly installed on the outer wall of the middle part of the inner end of the take-up roller 61. A first bevel gear 63 is fixedly installed at the inner end of the connecting shaft 62. A hoisting rope 64 is wound on the take-up roller 61. A drive motor 65 is embedded and fixedly installed on the inner wall of the middle part of the inner cavity of the hoisting box 5. A second bevel gear 66 is fixedly installed at the output end of the drive motor 65. The second bevel gear 66 is meshed with the first bevel gear 63. The upper end of the hoisting rope 64 is connected to a pre-installed protrusion on the top of the building.

[0040] Specifically, by starting the drive motor 65 through the external controller, the second bevel gear 66 can be driven to rotate. The second bevel gear 66 will then drive the first bevel gear 63 to rotate, thereby driving the winding roller 61 to rotate, winding and unwinding the hoisting rope 64, thus enabling the suspended basket to rise and fall.

[0041] The fall arrestor assembly 8 includes a T-shaped locking shaft 81 slidably mounted on one side of the middle cavity of the hanging box 5, and a limiting locking pulley 82. The other end of the T-shaped locking shaft 81 is fixedly mounted on the outer wall of the middle part of the second bevel gear 66, and the limiting locking pulley 82 is located on the outer side of the T-shaped locking shaft 81. A load-bearing push block 83 is slidably mounted on one side of the middle cavity of the hanging box 5, and the outer end of the limiting locking pulley 82 is inserted into and slidably mounted in the load-bearing push block 83. The locking shaft 81 includes a T-shaped shaft 811 and a first triangular retaining ring 812 fixedly mounted on the outer wall of one side of the T-shaped shaft 811. The T-shaped shaft 811 is movably mounted on the second connecting bearing 56. A plurality of triangular locking grooves 813 are evenly arranged on the outer peripheral wall of one side of the T-shaped shaft 811. The limiting locking pulley 82 includes a circular pulley 821 and a ring fixedly mounted on the outer peripheral wall of the circular pulley 821. Several L-shaped sliders 823 are provided, and each L-shaped slider 823 is slidably disposed in a transverse groove 531 by ball bearings. A second triangular retaining ring 822 is fixedly installed on the inner outer wall of a circular pulley 821, and the second triangular retaining ring 822 is configured corresponding to a first triangular retaining ring 812. A push block 824 is fixedly installed on the middle outer wall of the outer side of the circular pulley 821, and push balls 825 are respectively provided on the outer walls of the two ends of the push block 824. A receiving connecting groove 8231 is provided on the bottom surface of the inner end of the L-shaped slider 823. A multi-faceted retaining block 8232 is elastically slidably installed at the inner opening of the receiving connecting groove 8231 by a compression spring 8233. The multi-faceted retaining blocks 8232 are respectively disposed on the outer periphery of one side end of a T-shaped shaft 811. The lower end of the multi-faceted retaining block 8232 is arranged in an isosceles trapezoidal shape when viewed from the side, and in a right-angled triangle shape when viewed from the front. Figure 6As shown, during normal rotation, the multifaceted locking block 8232 rests against the outer wall of the T-shaped shaft 811 without limiting its movement. When it falls abnormally, the second triangular locking ring 822 moves relative to the first triangular locking ring 812, engaging in a triangular locking engagement. At this time, the multifaceted locking block 8232 engages in the triangular locking groove 813, with the two straight surfaces of the multifaceted locking block 8232 and the triangular locking groove 813 abutting each other, assisting in axial limiting of both the second triangular locking ring 822 and the first triangular locking ring 812. During the return rotation, the inclined surfaces of the multifaceted locking block 8232 and the triangular locking groove 813 engage, moving out of the triangular locking groove 813, releasing the axial limiting. Under the gravity of the load-bearing push block 83, it pulls the second triangular locking ring 822 and the first triangular locking ring 812... The corner retainer 812 is disengaged and returns to its initial state. The load-bearing push block 83 is a metal component. The load-bearing push block 83 is longitudinally slidably disposed in the inner slide groove 54 by ball bearings. A pushing groove 831 is provided on the outer wall of the middle part of the inner side of the load-bearing push block 833, and inclined slide grooves 832 are respectively provided on the inner walls of both ends of the inner cavity of the pushing groove 831. The pushing ball bearings 825 are respectively disposed in the inclined slide grooves 832. The load-bearing push block 83 and the limiting locking pulley 82 are slidably disposed in the inner slide groove 54 and the middle slide groove 53 by ball bearings. This not only reduces the sliding resistance and ensures that the load-bearing push block 83 pushes the limiting locking pulley 82 toward the T-shaped locking shaft 81, but also reduces sliding wear and improves the service life of the equipment.

[0042] Specifically, when the suspended platform loses power and falls, the entire platform will descend rapidly. Under inertia, the load-bearing pusher 83 will move upward relative to the suspended box 5 and slide upward within the inner cavity of the inner slide groove 54. At this time, under the restraining action of the pushing ball 825 and the inclined slide groove 832, the restraining locking pulley 82 will slide towards the locking shaft 81, thus achieving the locking between the second triangular locking ring 822 and the first triangular locking ring 812. This stops the T-shaped locking shaft 81 from rotating, and the second conical tooth... Under the meshing action of wheel 66 and the first bevel gear 63, the winding roller 61 will also stop rotating, thereby fixing the position of the basket in time and preventing the basket from continuing to fall. When the drive motor 65 resumes power, the entire anti-fall component 8 can be reset under the gravity of the load-bearing push block 83. This setting not only ensures the safety of the staff and improves the safety of the basket, but also cleverly utilizes the inertia of the basket when it falls, can be activated automatically in an instant, has low usage and manufacturing costs, and is easy to promote.

[0043] Furthermore, when the limiting pulley 82 moves toward the T-shaped locking shaft 81, it simultaneously drives the multi-faceted locking block 8232 to engage in the triangular locking groove 813. Under the engaging action of the multi-faceted locking block 8232 and the triangular locking groove 813, the T-shaped locking shaft 81 is locked, thereby further improving the fall prevention effect. When the limiting pulley 82 resets, the multi-faceted locking block 8232 will move out of the triangular locking groove 813, so that the drive motor 65 can normally drive the basket to rise and fall.

[0044] To address the technical problem of low safety where workers inside the suspended platform are prone to instability due to inertia when suddenly falling and coming to a stop, and are easily injured upon contact with the railing 4, the following measures are proposed: Figure 1 , Figure 2 and Figures 10-15 As shown, the following preferred technical solutions are provided:

[0045] Four compressed air grooves 11 are provided on both sides of the bottom surface of the lower base plate 1, and compressed air grooves 11 are also provided at both ends of the bottom surface of the lower base plate 1. Several air storage grooves 12 are provided in the inner cavity of the lower base plate 1, and the air storage grooves 12 are respectively provided corresponding to the compressed air grooves 11. The air storage grooves 12 and the compressed air grooves 11 are connected through air inlets 13. A first one-way valve 14 is installed in the air inlet 13. Several second one-way valves 15 are provided on the outer walls of both ends of the lower base plate 1, and the second one-way valves 15 are respectively connected to the compressed air grooves 11. Several inflation protection components 9 are installed on the lower base plate 1, and the inflation protection components 9 are respectively provided in the compressed air grooves 11.

[0046] The support frame 2 includes a long support rod 21 and short support rods 22 fixedly installed at both ends of the top surface of the lower base plate 1. Fences 4 are fixedly installed between the long support rods 21 and between the long support rods 21 and the short support rods 22. Double doors 7 are installed between the short support rods 22. An F-shaped tee groove 23 is provided in the inner cavity of the long support rod 21. A pair of F-shaped tee grooves 23 are provided in the inner cavity of the long support rod 21 located at both ends of the top surface of the lower base plate 1, for connecting the compressed air grooves 11 at both ends of the bottom surface of the lower base plate 1 with the fences 4 at both ends of the lower base plate 1. The two are connected, and the lower end of the F-type three-way groove 23 is connected to the air storage inner groove 12. The inner cavity of the short support rod 22 is provided with a three-way straight groove 25. The opening positions of the upper ends of the F-type three-way groove 23 and the three-way straight groove 25 are respectively sealed and fixedly installed with threaded sleeves 27. The outer periphery of the threaded sleeve 27 is sealed with a threaded cap 28. The setting of the threaded cap 28 allows the airbag 93 to be deflated and reset by screwing the threaded cap 28 after activation. It is convenient to use and realizes the multiple reuse of the inflation protection component 9.

[0047] The fence 4 includes a horizontal fence 41 and a vertical fence 42 fixedly installed on the bottom surface of the horizontal fence 41. A sealing plate 43 is fixedly installed on the bottom surface of one end of each horizontal fence 41, and the sealing plates 43 are connected to the F-shaped tee grooves 23 through sealing holes 24. An L-shaped sealing plate 44 is embedded in the upper inner side of each horizontal fence 41. A corner groove 411 is provided at the upper inner side of each horizontal fence 41, and the inner cavity of the corner groove 411... Several semi-circular slots 412 are respectively provided on the inner walls of both ends of the outer side. The upper end of the inner cavity of the sealing plate 43 is provided with a sealing inner sliding groove 431, and the sealing inner sliding groove 431 is connected to the sealing hole 24 through the inner horizontal sliding hole 432. Several semi-circular blocks 441 are fixedly installed on the outer walls of both ends of the L-shaped sealing plate 44. The semi-circular blocks 441 are components made of soft rubber, and the semi-circular blocks 441 are respectively engaged in the semi-circular slots 412.

[0048] The inflation protection assembly 9 includes a piston rod 91 and an airbag 93 embedded in the inner cavity of the corner groove 411. The airbag 93 is connected to the F-type three-way groove 23. The piston rod 91 is elastically and slidably installed in the compressed air bottom groove 11 through the connecting spring 92.

[0049] An inertial sealing assembly 10 is installed in the inner cavity of the sealing inner slide groove 431. The inertial sealing assembly 10 includes a sealing load block 101 and a T-shaped sealing block 102 that is laterally slidably installed in the inner transverse slide hole 432. The front end of the T-shaped sealing block 102 is sealed in the F-shaped tee groove 23. The connection method between the sealing load block 101 and the T-shaped sealing block 102 is the same as the connection method between the limiting locking pulley 82 and the load push block 83. The sliding connection method of the inertial sealing assembly 10 is also the same. The use of ball bearings for sliding connection reduces resistance during sliding, ensures the triggering of inflation effect, reduces sliding wear, and improves service life. The sealing load block 101 is also a metal component. The position and connection method of the inflation protection component 9 and the inertial sealing component 10 in the double door 7 are the same as those of the inflation protection component 9 and the inertial sealing component 10 in the fence 4. The three-way straight groove 25 is connected to the inner cavity of the double door 7 through the ventilation hose 26.

[0050] Specifically, by protruding the piston rod 91 at the bottom of the lower base plate 1 and by setting the second one-way valve 15, each time the basket descends to the ground, the weight of the basket and the people and objects on it can be used to press the piston rod 91 into the compressed air groove 11. This continuously forces the air in the compressed air groove 11 into the air storage groove 12 through the first one-way valve 14, thus increasing the air pressure in the air storage groove 12. At the same time, when the basket is lifted, the piston rod 91 will automatically reset under the elastic force of the connecting spring 92, so that the compressed air groove 11 will be filled with air again. When the basket falls as a whole, the sealing weight block 101 will drive the T-shaped... The sealing block 102 moves into the inner cavity of the sealing inner groove 431, thereby causing the front end of the T-shaped sealing block 102 to lose its sealing effect on the F-shaped three-way groove 23. This allows the gas stored in the gas storage inner groove 12 to enter the airbag 93 through the F-shaped three-way groove 23, which pops open the L-shaped sealing plate 44 and inflates the airbag 93. This effectively protects the workers who collide with the fence 4. This design not only cleverly utilizes the weight of the basket and the people and objects on it for gas storage, but also uses the inertia of the basket's descent to activate the airbag 93. The entire process is automatic and requires no manual intervention, saving manpower, ensuring the safety of the basket, and reducing the damage caused by the sudden fall of the basket.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall-prevention safety suspended platform for construction sites, comprising a bottom plate (1), characterized in that: A support frame (2) is fixedly installed on the top of the lower base plate (1), and a fence (4) is fixedly installed on the support frame (2). An upper top plate (3) is fixedly installed at the upper end of the support frame (2), and a hanging box (5) is fixedly installed at the middle of the top surface of the upper top plate (3). A rope assembly (6) is installed in the inner cavity of the hanging box (5). Double doors (7) are respectively provided at the middle of both sides of the top surface of the lower base plate (1), and the double doors (7) are respectively installed between the support frames (2). A fall protection assembly (8) is installed in the inner cavity of one side of the hanging box (5). The rope assembly (6) includes take-up rollers (61) respectively movably installed at both ends of the inner cavity of the hanging box (5), and a connecting shaft (62) is fixedly installed on the outer wall of the middle part of the inner end of the take-up roller (61), and a first bevel gear (63) is fixedly installed at the inner end of the connecting shaft (62). A hanging rope (64) is wound on the take-up roller (61), and a drive motor (65) is embedded and fixedly installed on the inner wall of the middle part of the inner cavity of the hanging box (5), and a second bevel gear (66) is fixedly installed at the output end of the drive motor (65). The second bevel gear (66) is meshed with the first bevel gear (63). The fall arrestor assembly (8) includes a T-shaped snap-fit ​​shaft (81) which is slidably installed on one side of the middle cavity of the hanging box (5) and a limiting snap-fit ​​pulley (82). The other end of the T-shaped snap-fit ​​shaft (81) is fixedly installed on the middle outer wall of the second bevel gear (66), and the limiting snap-fit ​​pulley (82) is located on the outside of the T-shaped snap-fit ​​shaft (81). A load-bearing push block (83) is slidably installed on one side of the middle cavity of the hanging box (5), and the outer end of the limiting snap-fit ​​pulley (82) is inserted into and slidably installed in the load-bearing push block (83). The inner cavity of the hanging box (5) is provided with an inner groove (51) in the middle. The two ends of the top surface of the hanging box (5) are respectively provided with connecting holes (52). The connecting holes (52) are respectively connected to the inner groove (51). The inner wall of the middle part of the inner cavity of the inner groove (51) is provided with a middle sliding groove (53), and the inner wall of the middle sliding groove (53) is provided with an inner sliding groove (54). The two ends of the middle part of the inner cavity of the inner groove (51) are respectively provided with a first connecting bearing (55), and the inner side of the middle sliding groove (53) is provided with a second connecting bearing (56). Several transverse grooves (531) are provided on the inner wall of the inner cavity of the middle groove (53); The T-shaped snap-fit ​​rotating shaft (81) includes a T-shaped shaft (811) and a first triangular snap ring (812) fixedly installed on the outer wall of one side end of the T-shaped shaft (811). The T-shaped shaft (811) is movably installed on the second connecting bearing (56). Several triangular snap-fit ​​grooves (813) are evenly provided on the outer peripheral wall of one side end of the T-shaped shaft (811).

2. The fall-prevention safety suspended platform for construction sites according to claim 1, characterized in that: The limiting snap-fit ​​pulley (82) includes a circular pulley (821) and several L-shaped sliders (823) fixedly installed on the outer wall of the outer periphery of the circular pulley (821). The L-shaped sliders (823) are slidably arranged in the transverse groove (531) by ball bearings. A second triangular snap ring (822) is fixedly installed on the inner outer wall of the circular pulley (821). A push block (824) is fixedly installed on the middle outer wall of the outer side of the circular pulley (821). Pushing balls (825) are respectively provided on the outer walls of the two ends of the push block (824). An inlet connecting groove (8231) is provided on the bottom surface of the inner end of the L-shaped slider (823). A multi-faceted locking block (8232) is elastically slidably installed at the inner cavity opening of the inlet connecting groove (8231) by a compression spring (8233). The multi-faceted locking blocks (8232) are respectively arranged on the outer periphery of one side end of the T-shaped shaft (811).

3. The fall-prevention safety suspended platform for construction sites according to claim 1, characterized in that: The load-bearing push block (83) is longitudinally slidably disposed in the inner groove (54) by ball bearings. A push groove (831) is provided on the middle outer wall of the inner side of the load-bearing push block (83), and inclined grooves (832) are respectively provided on the inner walls of both ends of the inner cavity of the push groove (831), and push balls (825) are respectively disposed in the inclined grooves (832).

4. The fall-prevention safety suspended platform for construction sites according to claim 1, characterized in that: Four compressed air grooves (11) are provided on both sides of the bottom surface of the lower base plate (1), and compressed air grooves (11) are also provided at both ends of the bottom surface of the lower base plate (1). Several air storage grooves (12) are provided in the inner cavity of the lower base plate (1), and the air storage grooves (12) are respectively provided corresponding to the compressed air grooves (11). The air storage grooves (12) and the compressed air grooves (11) are connected through air inlet holes (13). A first one-way valve (14) is installed in the air inlet hole (13). Several second one-way valves (15) are respectively provided on the outer walls of both ends of the lower base plate (1), and the second one-way valves (15) are respectively connected to the compressed air grooves (11). Several inflation protection components (9) are installed on the bottom plate (1), and the inflation protection components (9) are respectively set in the compressed air bottom groove (11).

5. A fall-prevention safety suspended platform for construction sites according to claim 4, characterized in that: The support frame (2) includes a long support rod (21) and short support rods (22) fixedly installed at the middle ends of the top surface of the bottom plate (1). The lower end of the F-type tee groove (23) is connected to the gas storage inner groove (12). A tee straight groove (25) is provided in the inner cavity of the short support rod (22). Threaded sleeves (27) are sealed and fixedly installed at the opening positions of the upper ends of the F-type tee groove (23) and the tee straight groove (25). Threaded caps (28) are installed on the outer periphery of the threaded sleeves (27) through thread sealing.

6. A fall-prevention safety suspended platform for construction sites according to claim 5, characterized in that: The fence (4) includes a horizontal fence (41) and a vertical fence (42) fixedly installed on the bottom surface of the horizontal fence (41). A sealing plate (43) is fixedly installed on the bottom surface of one end of the horizontal fence (41). The sealing plate (43) is connected to the F-type tee groove (23) through the sealing hole (24). An L-type sealing plate (44) is embedded in the upper end of the inner side of the horizontal fence (41). A corner groove (411) is provided at the upper end of the inner side of the horizontal bar (41), and several semi-circular slots (412) are provided on the inner walls of both ends of the outer side of the corner groove (411). The upper end of the inner cavity of the sealing plate (43) is provided with a sealing inner sliding groove (431), and the sealing inner sliding groove (431) is connected to the sealing hole (24) through the inner horizontal sliding hole (432); Several semi-circular clips (441) are fixedly installed on the outer walls of both ends of the L-shaped sealing plate (44), and the semi-circular clips (441) are respectively snapped into the semi-circular slots (412).

7. A fall-prevention safety suspended platform for construction sites according to claim 6, characterized in that: The inflatable protection assembly (9) includes a piston rod (91) and an airbag (93) embedded in the inner cavity of the corner groove (411). The airbag (93) is connected to the F-type three-way groove (23). The piston rod (91) is elastically and slidably installed in the compressed air bottom groove (11) by a connecting spring (92).

8. A fall-prevention safety suspended platform for construction sites according to claim 7, characterized in that: An inertial blocking assembly (10) is installed in the inner cavity of the inner sliding groove (431). The inertial blocking assembly (10) includes a blocking load block (101) and a T-shaped blocking block (102) that is laterally slidably installed in the inner transverse sliding hole (432). The front end of the T-shaped blocking block (102) is sealed in the F-shaped tee groove (23). The connection method between the blocking load block (101) and the T-shaped blocking block (102) is the same as the connection method between the limiting snap-fit ​​pulley (82) and the load push block (83). The position and connection method of the inflatable protection component (9) and the inertial blocking component (10) in the double door (7) are the same as the position and connection method of the inflatable protection component (9) and the inertial blocking component (10) in the fence (4), and the three-way straight groove (25) is connected to the inner cavity of the double door (7) through the ventilation hose (26).

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