CN109179187B

CN109179187B - Hanging platform for building

Info

Publication number: CN109179187B
Application number: CN201811342809.7A
Authority: CN
Inventors: 李保平
Original assignee: Hangzhou Manjing Technology Co ltd
Current assignee: Shandong Lianchen Mechanical Equipment Co ltd
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2020-09-29
Anticipated expiration: 2037-06-19
Also published as: CN109179187A; CN107130787A; CN109469311A; CN107130787B; CN109469311B

Abstract

The invention belongs to the technical field of lifting platforms, and particularly relates to a lifting platform for buildings, which comprises a driving mechanism, a supporting mechanism and a lifting platform mechanism, wherein the driving mechanism, the supporting mechanism and the lifting platform mechanism are connected in sequence through steel ropes; when one of the steel cords breaks; the second rotating wheel positioned at the upper side of the two corresponding second rotating wheels can reversely rotate under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that the stress point moves to the middle position; when two steel cords located on the same side are simultaneously broken; two second rotating wheels which correspond to the two second rotating wheels and are positioned at one side and the lower side of the two second rotating wheels can rotate reversely under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that its point of force is moved towards the intermediate position.

Description

Hanging platform for building

Technical Field

The invention belongs to the technical field of lifting platforms, and particularly relates to a lifting platform for a building.

Background

The currently used hanging platform is a common hanging platform; accidents are often caused by the breakage of the ropes in the using process; when one of the ropes is broken, the other ropes can be subjected to larger impact force; so that the service life of the rope is reduced; the whole service life of the hanging platform is shortened; therefore, it is necessary to design a lifting platform which can improve the service life of the ropes by adjusting the stress condition of each rope by the lifting platform when the ropes are broken and can ensure the safety of personnel on the lifting platform.

The invention designs a hanging platform for buildings to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a hanging platform for buildings, which is realized by adopting the following technical scheme.

A hanging platform for building comprises a driving mechanism, supporting mechanisms and a hanging platform mechanism, wherein the two supporting mechanisms are positioned on two sides of the driving mechanism; the driving mechanism, the supporting mechanism and the hanging platform mechanism are connected in sequence through steel ropes.

The hanging platform mechanism comprises a first rotating wheel, a guardrail, a fixed rod, a bottom plate, a top frame, a shaft hole, a first gap, a second rotating wheel, a connecting shaft, a rotating shaft and a volute spiral spring, wherein the two ends of the top frame are respectively provided with the first gap which is positioned at the upper end of the top frame; two shaft holes are formed in the two ends of the top frame and located on the lower sides of the two first notches; two rotating shafts are symmetrically arranged on the side surfaces of the two first gaps; the two connecting shafts are respectively arranged in the two shaft holes; the four rotating shafts are completely the same in mounting structure; for one, one end of the second rotating wheel is arranged on the rotating shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of one side, close to the rotating shaft, of the second rotating wheel; the outer end of the scroll spring is arranged on the side surface of the first notch; the structures arranged on the two connecting shafts are completely the same, and the structures arranged on the two ends of one of the connecting shafts are completely the same; for one end, one end of the second rotating wheel is arranged on the connecting shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of the second rotating wheel close to one side of the connecting shaft; the outer end of the scroll spring is arranged on the corresponding side surface on the top frame; the four fixing rods are respectively arranged at four corners of the lower end of the top frame and are positioned between the two first gaps; the eight guardrails are arranged between the four fixed rods in a group two by two respectively, and the two guardrails positioned between the two adjacent fixed rods are distributed up and down; the bottom plate is arranged at the lower ends of the four fixed rods.

The driving mechanism comprises a gear mechanism, a first gear, a second gear, a third gear, a fourth gear, a driving motor, a fixed shell, square notches, a gear support, a first gear shaft, a second gear shaft and a motor support, wherein two square notches are symmetrically formed in two side faces of the fixed shell; the driving motor is supported and installed on the upper end surface of the inner side of the fixed shell through two motors; the fourth gear is arranged on the motor rotating shaft; the motor rotating shaft is provided with a clamping structure; the structures arranged on the two sides of the fourth gear are completely the same, and for one side of the fourth gear, the first gear shaft is arranged on the upper end surface of the inner side of the fixed shell through the gear support; the third gear is arranged at one end of the first gear shaft and is meshed with the fourth gear; the other end of the first gear shaft is provided with a gear mechanism; the second gear is arranged on the first gear shaft and is positioned between the gear mechanism arranged on the first gear shaft and the third gear; the second gear shaft is supported and installed on the upper end surface of the inner side of the fixed shell through a gear; the first gear is arranged at one end of the second gear shaft and is meshed with the second gear; the other end of the second gear shaft is provided with a gear mechanism.

The gear mechanism comprises a first spring, outer ring teeth and a limiting support; the gear mechanism comprises an annular limiting part, a limiting groove, a gear groove, a first tooth, a first limiting sheet, a first guide groove, a square block groove, a rotating wheel shaft support, a circular hole, a first limiting block, a first limiting sheet groove, a first guide block, a third rotating wheel, a driving circular ring, circular inner teeth, second teeth, a second limiting sheet groove, a fourth notch, a driving column, a second limiting sheet, a square groove, a swinging shaft, a second guide block, a square block, a second limiting block, a second guide groove, a third guide block and a second spring, wherein a plurality of square block grooves are uniformly formed in the outer circular surface of the circular inner teeth; the structures arranged in the square block grooves are completely the same; for any of them; two second guide grooves are symmetrically formed in two sides of the square block groove; the upper ends of the two second guide grooves are respectively provided with a second limiting block; two side surfaces of the lower end of the square block are respectively provided with a second guide block; the square block is arranged in the square block groove through the matching of the two second guide blocks and the two second guide grooves; a third spring is arranged between the square block and the square block groove; the upper end of the square block is provided with a fourth gap; the swing shaft is arranged on two side surfaces of the fourth notch; the lower end of the second tooth is arc-shaped; the lower end of the second tooth is provided with a circular hole; the upper end of the second tooth is provided with a second limiting piece groove; the second tooth is arranged in the fourth gap through the matching of the circular hole and the swinging shaft; two third guide grooves are symmetrically formed in two sides of the second limiting sheet groove; two third guide blocks are arranged on two sides of the lower end of the second limiting piece; the second limiting piece is arranged in a second limiting piece groove through the matching of the two third guide blocks and the two third guide grooves; a second spring is arranged between the second limiting sheet and the second limiting sheet groove; a driving column is arranged on the side surface of the second tooth; a plurality of radially distributed square grooves are uniformly formed in one side surface of the driving ring; the driving circular ring is arranged on one side of the outer circular surface of the circular inner tooth, and a square groove on the driving circular ring is matched with the driving column; the rotating wheel shaft is supported and arranged on the upper end surface of the inner side of the fixed shell through the rotating wheel shaft; one end of the third rotating wheel is arranged on the rotating wheel shaft, and the other end of the third rotating wheel is arranged on one side surface of the circular internal tooth; the inner circle surface of the outer ring gear is provided with a plurality of gear grooves; the outer ring gear is matched with the second gear through the gear groove; a plurality of first teeth are arranged on the outer circular surface of the outer ring teeth; each first tooth is provided with a first limiting sheet groove; the structures arranged in the grooves of the first limiting pieces are completely the same; for any of them; two first guide grooves are symmetrically formed in two sides of the first limiting sheet groove; the upper ends of the two first guide grooves are respectively provided with a first limiting block; two side surfaces of the lower end of the first limiting sheet are respectively provided with a first guide block; the first limiting piece is arranged in the first limiting piece groove through the matching of the two first guide blocks and the two first guide grooves; a first spring is arranged between the first limiting sheet and the first limiting sheet groove; the annular limit is arranged on the limit support; a plurality of limiting grooves are uniformly formed in the inner circular surface of the annular limiting; the limiting groove is matched with the first tooth.

The limiting support is arranged on the upper end surface of the inner side of the fixed shell; the gear mechanism arranged on the first gear shaft is connected with the first gear shaft through the side end face of the outer ring gear in the gear mechanism; the gear mechanism mounted on the second gear shaft is connected with the second gear shaft through a side end face of the outer ring gear in the gear mechanism.

The driving mechanism, the supporting mechanism and the hanging platform mechanism are connected through four steel ropes; the connection modes of the four steel ropes are the same; for any one of the steel ropes, one end of the steel rope is wound on a third rotating wheel on one of the gear mechanisms in the driving mechanism; and the other end of the steel wire rope is wound on two first rotating wheels at corresponding corners of the top frame in the hanging platform mechanism through two steel wire ropes.

One end of a steel rope wound on the second rotating wheel connected with the first rotating wheel is connected to the steel rope wound on the adjacent first rotating wheel on the same plane with the first rotating wheel, and the distance from the connecting point to the top frame is 1/2 larger than the length of the top frame. 1/2, the balance of the platform can be guaranteed, and the balance point of the steel cable can be automatically adjusted to the middle position of the platform when one of the steel cables is broken.

As a further improvement of the technology, the supporting mechanism comprises a weight, a first supporting plate, a second supporting plate, a third supporting plate, a fourth supporting plate, a transition wheel, a second notch, a third notch, a rotating shaft, a fifth notch, a supporting shaft, a first square hole, a supporting hole and a second square hole, wherein one end of the second supporting plate is provided with the second square hole; the first supporting plate is arranged at the upper end of the second supporting plate; a first square hole is formed in the first supporting plate and communicated with the second square hole; two rotating shafts are arranged on the upper end wall surface of the first square hole in parallel; a transition wheel is arranged on each of the two rotating shafts; two rotating shafts which are connected are arranged at the joint of the first square hole and the second square hole, and the axial directions of the two rotating shafts are vertical to the plane formed by the axes of the two rotating shafts arranged at the upper end of the first square hole; two transition wheels are respectively arranged on the two rotating shafts at the joint of the first square hole and the second square hole; the end surfaces of the upper ends of the second supporting plates, which are positioned at the two sides of the first supporting plate, are respectively provided with a heavy block; one end of the third supporting plate is provided with a second notch; a fifth gap is formed in the third supporting plate; the fifth gap is close to the second gap; two supporting holes are symmetrically formed in the two side faces of the fifth notch; one end of the third supporting plate, which is far away from the second notch, is arranged on the side surface of the first supporting plate; two ends of the second gap are respectively provided with a rotating shaft; two transition wheels are respectively arranged on the two rotating shafts in the second gap; the upper end of the fourth supporting plate is provided with a third gap; two parallel rotating shafts are arranged on the side surface of the third gap; a transition wheel is arranged on each of the two rotating shafts in the third gap; two side surfaces of one end of the fourth supporting plate, which is close to the third gap, are respectively provided with a supporting shaft; the fourth supporting plate is arranged on the third supporting plate through the matching of the two supporting shafts and the two supporting holes.

As a further improvement of the present technology, the lower end of the fourth support plate is triangular; the effect of this is to make the support mechanism more stable by the stability of the triangle.

As a further improvement of the technology, one end of the steel cable is wound on a third rotating wheel on one of the gear mechanisms in the driving mechanism; the other end of the steel rope passes through the second square hole and the first square hole, and the steel rope respectively bypasses a transition wheel at the joint of the first square hole and the second square hole and a transition wheel at the upper end of the first square hole; then the first support plate and the second support plate pass through transition wheels on the fourth support plate and the third support plate; and finally, the lifting platform mechanism is connected.

As a further improvement of the present technique, twelve as an alternative to eight guardrails. The more guardrails, the better the safety, and the spacing between 12 rails just ensures that the feet can not extend out.

Compared with the traditional lifting platform technology, the lifting platform designed by the invention can be adjusted by itself when the steel rope is broken during working, so that the lifting platform is in a balanced state.

The fourth gear is arranged on a motor rotating shaft; the third gear is arranged at one end of the first gear shaft; and the third gear is meshed with the fourth gear; the other end of the first gear shaft is provided with a gear mechanism; the second gear is arranged on the first gear shaft, the first gear is arranged at one end of the second gear shaft, and the first gear is meshed with the second gear; the other end of the second gear shaft is provided with a gear mechanism; when the driving motor drives the motor rotating shaft to rotate, the motor rotating shaft can drive the fourth gear to rotate; the fourth gear drives the third gear to rotate; the third gear drives the first gear shaft to rotate; the first gear shaft drives the gear mechanism arranged on the first gear shaft to rotate; meanwhile, the first gear shaft rotates to drive the second gear to rotate; the second gear rotates to drive the first gear to rotate; the first gear rotates to drive the second gear shaft to rotate; the second gear shaft rotates to drive the gear mechanism arranged on the second gear shaft to rotate.

The gear mechanism arranged on the first gear shaft is connected with the first gear shaft through the side end face of the outer ring gear in the gear mechanism; the gear mechanism arranged on the second gear shaft is connected with the second gear shaft through the side end surface of the outer ring gear in the gear mechanism; the limiting support is arranged on the upper end surface of the inner side of the fixed shell; the annular limit is arranged on the limit support; a plurality of first teeth are arranged on the outer circular surface of the outer ring teeth; the first limiting piece is arranged in the first limiting piece groove through the matching of the two first guide blocks and the two first guide grooves; a first spring is arranged between the first limiting sheet and the first limiting sheet groove; the square block is arranged in the square block groove through the matching of the two second guide blocks and the two second guide grooves; a third spring is arranged between the square block and the square block groove; the second tooth is arranged in the fourth gap through the matching of the circular hole and the swinging shaft; the second limiting piece is arranged in a second limiting piece groove through the matching of the two third guide blocks and the two third guide grooves; a second spring is arranged between the second limiting sheet and the second limiting sheet groove; a driving column is arranged on the side surface of the second tooth; a plurality of square grooves are uniformly formed in one side surface of the driving circular ring; the driving circular ring is arranged on the circular inner tooth, and the square groove on the driving circular ring is matched with the driving column; the outer ring gear is arranged at one end of the circular inner gear through a third rotating wheel matched with the second teeth through a gear groove; the rotating wheel shaft is supported and arranged on the upper end surface of the inner side of the fixed shell through the rotating wheel shaft; one end of the third rotating wheel is arranged on the rotating wheel shaft, and the other end of the third rotating wheel is arranged on one side surface of the circular internal tooth; when the first gear shaft and the second gear shaft rotate, the outer ring teeth are driven to rotate; the outer ring gear drives the circular inner teeth to rotate; the circular inner teeth drive the third rotating wheel to rotate; under normal work, the maximum transmission force between the circular inner teeth and the outer ring teeth is adjusted by adjusting the swing angle of the second teeth, so that the tensile force borne by each steel rope is adjusted according to the weight borne by the upper side of the lifting platform; the total weight borne by the 4 steel ropes is larger than the weight borne by the upper side of the hanging platform; only in this way, the steel rope can pull the hanging platform to work; if the weight carried by the upper side of the platform is 4G, the tension carried by the 4 steel ropes needs to be adjusted so that the tension carried by each steel rope is 1.1G; when one steel rope is broken, the tensile force borne by each steel rope does not become 1.1G as the angle of the second tooth is unchanged; thus, when one steel rope is broken, the rest 3 steel ropes can be recycled; but as the number of the steel ropes is reduced, the sum of the weight borne by the steel ropes is 3.3G, which is less than the weight borne by the upper side of the hanging platform; the circular inner teeth can rotate relative to the outer ring teeth; the circular internal teeth are connected with a third rotating wheel which is connected with a steel rope; the platform will move downwards; if the descending speed of the hanging platform is slow; at this time, the damage of personnel on the hanging platform can not be caused; if the descending speed of the hanging platform is too fast; at the moment, the rotating speed of the circular internal teeth is higher; so that the circular internal teeth can generate centrifugal force; so that the first limiting sheet positioned in the first tooth moves into the limiting groove; the circular internal teeth are clamped; when the circular inner teeth are stuck, the centrifugal force of the circular inner teeth is reduced to zero; under the action of the first spring; the first limiting piece can be restored into the first tooth; at the moment, the circular internal teeth continue to rotate, and the rotating speed is continuously accelerated; when the centrifugal force generated by the rotation of the circular internal teeth can move the first limiting sheet into the limiting groove; the first limiting sheet clamps the circular inner teeth again, and so on; the circular inner teeth are in an intermittent blocking state; when the hanging platform needs to stop in the working process; the motor rotating shaft is locked by controlling a locking structure on the motor rotating shaft; thereby enabling the hanging platform to be in a stop state; when the elevator descends, if one steel rope is suddenly broken, the clamping structure on the motor rotating shaft is immediately in a clamping state when sensing the change of force; if a steel rope is suddenly broken in the next process and a clamping structure on a motor rotating shaft fails, the circular inner teeth can drive the outer ring teeth to rotate and the rotating speed is high; the outer ring teeth generate larger centrifugal force; so that the second limiting plate positioned in the second tooth moves into the gear groove; the outer ring teeth are locked; when the outer ring teeth are stuck, the centrifugal force of the outer ring teeth is reduced to zero; under the action of the second spring; the second limiting plate can be restored into the second tooth; at the moment, the outer ring gear continues to rotate, and the rotating speed is continuously accelerated; when the centrifugal force generated by the rotation of the outer ring gear can move the second limiting piece into the gear groove; the second limiting sheet clamps the outer ring gear again, and so on; the outer ring teeth are in an intermittent blocking state; the circular inner teeth are controlled by the outer ring teeth; the first limiting piece and the second limiting piece designed by the invention have the function of carrying out multiple protection on the lifting platform.

The driving mechanism, the supporting mechanism and the hanging platform mechanism are connected through four steel ropes; the connection modes of the four steel ropes are the same; for any one of the steel ropes, one end of the steel rope is wound on a third rotating wheel on one of the gear mechanisms in the driving mechanism; the other end of the steel rope passes through the second square hole and the first square hole, and the steel rope respectively bypasses a transition wheel at the joint of the first square hole and the second square hole and a transition wheel at the upper end of the first square hole; then the first support plate and the second support plate pass through transition wheels on the fourth support plate and the third support plate; and finally, the two steel ropes are respectively wound on two first rotating wheels at corresponding corners of the top frame in the hanging platform mechanism. The second rotating wheel connected with the first rotating wheel is connected with another steel rope which is wound on the first gear and is positioned in the same plane through a steel rope. The four rotating shafts of the invention are completely the same in structure; for one, one end of the second rotating wheel is arranged on the rotating shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of one side, close to the rotating shaft, of the second rotating wheel; the outer end of the scroll spring is arranged on the side surface of the first notch; the structures arranged on the two connecting shafts are completely the same, and the structures arranged on the two ends of one of the connecting shafts are completely the same; for one end, one end of the second rotating wheel is arranged on the connecting shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of the second rotating wheel close to one side of the connecting shaft; the outer end of the scroll spring is arranged on the corresponding side surface on the top frame; when the four third rotating wheels rotate, the four third rotating wheels can respectively drive the steel ropes wound on the four third rotating wheels to move; the steel ropes sequentially move through the corresponding transition wheels, and finally the four first rotating wheels are driven to rotate for a certain angle; the first rotating wheel rotates to apply force to the corresponding scroll spring; after the force on the scroll spring is completed; the four first rotating wheels drive the whole lifting platform mechanism to move; when one of the steel cords breaks; the second rotating wheel positioned at the upper side of the two corresponding second rotating wheels can reversely rotate under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that the stress point moves to the middle position; finally, the whole hanging platform reaches a balance state; when two steel cords located on the same side are simultaneously broken; two second rotating wheels which correspond to the two second rotating wheels and are positioned at one side and the lower side of the two second rotating wheels can rotate reversely under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that the stress point moves to the middle position; and finally, the whole hanging platform reaches a balance state.

When the table works; the driving motor drives the motor rotating shaft to rotate; the rotating shaft of the motor can drive the fourth gear to rotate; the fourth gear drives the third gear to rotate; the third gear drives the first gear shaft to rotate; the first gear shaft drives the gear mechanism arranged on the first gear shaft to rotate; meanwhile, the first gear shaft rotates to drive the second gear to rotate; the second gear rotates to drive the first gear to rotate; the first gear rotates to drive the second gear shaft to rotate; the second gear shaft rotates to drive the gear mechanism arranged on the second gear shaft to rotate; the gear mechanism rotates to enable the steel rope wound on the gear mechanism to move; the steel ropes sequentially move through the corresponding transition wheels, and finally the four first rotating wheels are driven to rotate for a certain angle; the first rotating wheel rotates to apply force to the corresponding scroll spring; after the force on the scroll spring is completed; the four first rotating wheels drive the whole lifting platform mechanism to move; when one of the steel cords breaks; the second rotating wheel positioned at the upper side of the two corresponding second rotating wheels can reversely rotate under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that the stress point moves to the middle position; finally, the whole hanging platform reaches a balance state; when two steel cords located on the same side are simultaneously broken; two second rotating wheels which correspond to the two second rotating wheels and are positioned at one side and the lower side of the two second rotating wheels can rotate reversely under the action of the corresponding scroll springs; in the rotating process, the other steel rope connected with the steel rope wound on the second rotating wheel is pulled to move through the steel rope wound on the second rotating wheel; so that the stress point moves to the middle position; finally, the whole lifting platform is in a balanced state, only one steel rope is broken, the lifting platform can slowly and intermittently descend, and the reusability of the remaining three steel ropes is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall component distribution.

Fig. 2 is a schematic structural diagram of the hanging platform mechanism.

Fig. 3 is a schematic diagram of a top frame structure.

Fig. 4 is a first wheel mounting schematic.

Fig. 5 is a schematic view of the attachment shaft installation.

Fig. 6 is a schematic view of the structure of the connecting shaft.

FIG. 7 is a schematic view of a second wheel installation.

Fig. 8 is a schematic structural view of the support mechanism.

Fig. 9 is a schematic diagram of a fourth support plate structure.

Fig. 10 is a schematic diagram of a third support plate structure.

Fig. 11 is a schematic diagram of a second support plate structure.

Fig. 12 is a supporting shaft mounting schematic view.

Fig. 13 is a schematic view of a first support plate structure.

Fig. 14 is a schematic view of the drive mechanism.

Fig. 15 is a schematic view of the internal structure of the drive mechanism.

Fig. 16 is a schematic view of the internal mounting of the drive mechanism.

Figure 17 is an outer ring teeth installation schematic.

Fig. 18 is a schematic view of an annular stop structure.

Fig. 19 is a schematic view of an outer ring tooth structure.

Fig. 20 is a schematic view of a first channel structure.

Fig. 21 is a schematic view of the first stopper groove structure.

Fig. 22 is a schematic structural view of the first stopper piece.

FIG. 23 is a third wheel installation schematic.

FIG. 24 is a schematic view of a third wheel structure.

Figure 25 is a schematic view of a square block groove configuration.

Fig. 26 is a schematic diagram of a square block structure.

Fig. 27 is a schematic view of a second channel configuration.

FIG. 28 is a schematic view of the drive ring installation.

Fig. 29 is a schematic view of a driving ring structure.

FIG. 30 is a schematic view of a square groove structure.

Fig. 31 is a third spring mounting schematic.

Fig. 32 is a schematic view of a circular internal tooth mounting.

Fig. 33 is a schematic view of a second tooth arrangement.

Fig. 34 is a schematic view of the first stopper piece.

Fig. 35 is a schematic of steel cord connection.

Fig. 36 is a schematic of the steel cord working principle.

Fig. 37 is a schematic view of the working principle of the platform.

Number designation in the figures: 1. a drive mechanism; 2. a support mechanism; 3. a platform mechanism; 4. a first runner; 5. a guardrail; 6. fixing the rod; 7. a top frame; 8. a shaft hole; 9. a first notch; 10. a second runner; 11. a connecting shaft; 12. a first spring; 13. a rotating shaft; 14. a volute spiral spring; 15. a weight block; 16. a first support plate; 17. a second support plate; 18. a third support plate; 19. a fourth support plate; 20. a transition wheel; 21. a second notch; 22. a third notch; 23. a rotating shaft; 24. a support shaft; 25. a first square hole; 26. a support hole; 27. a second square hole; 28. a gear mechanism; 29. a first gear; 30. a second gear; 31. a third gear; 32. a fourth gear; 33. a drive motor; 34. a stationary case; 35. a square notch; 36. a gear support; 37. a first gear shaft; 38. a second gear shaft; 39. supporting a motor; 40. outer ring teeth; 41. annular limiting; 42. a limiting groove; 43. a gear groove; 44. a first tooth; 45. a first limiting sheet; 46. a first guide groove; 47. a first stopper; 48. a first spacing plate groove; 49. a first guide block; 50. limiting and supporting; 51. a third rotating wheel; 52. a drive ring; 53. circular internal teeth; 54. a second tooth; 55. a second spacing plate groove; 56. a fourth notch; 57. a drive column; 58. a second limiting sheet; 59. a square groove; 60. a swing shaft; 61. a second guide block; 62. a square block; 63. a second limiting block; 64. a second guide groove; 65. a third guide groove; 66. a third guide block; 67. a second spring; 68. a fifth notch; 69. a circular hole; 70. a square block groove; 71. a base plate; 72. a rotating wheel shaft; 73. a rotating shaft support; 74. and a third spring.

Detailed Description

As shown in fig. 1, it comprises a driving mechanism 1, supporting mechanisms 2, and a platform mechanism 3, wherein two supporting mechanisms 2 are located at two sides of the driving mechanism 1; the driving mechanism 1, the supporting mechanism 2 and the hanging platform mechanism 3 are connected in sequence through steel ropes.

As shown in fig. 2, the platform mechanism 3 includes a first wheel 4, a guard rail 5, a fixing rod 6, a bottom plate 71, a top frame 7, a shaft hole 8, a first gap 9, a second wheel 10, a connecting shaft 11, a rotating shaft 13, and a volute spiral spring 14, wherein as shown in fig. 3, two ends of the top frame 7 are respectively provided with the first gap 9, and the first gap 9 is located at the upper end of the top frame 7; two ends of the top frame 7 are respectively provided with a shaft hole 8 at the lower side of the two first gaps 9; as shown in fig. 5, two rotating shafts 13 are symmetrically installed on the side surfaces of the two first notches 9; two connecting shafts 11 are respectively arranged in the two shaft holes 8; as shown in fig. 4, the four rotating shafts 13 are completely identical in structure; for one, one end of the second pulley 10 is mounted on the shaft 13; the first rotating wheel 4 is arranged at the other end of the second rotating wheel 10; the inner end of the volute spiral spring 14 is arranged on the end surface of the second rotating wheel 10 close to the rotating shaft 13; the outer end of scroll spring 14 is mounted on the side of first notch 9; as shown in fig. 6, the structures mounted on the two connecting shafts 11 are completely the same and the structures mounted on both ends of one of the connecting shafts 11 are completely the same; for one of the ends, as shown in fig. 7, one end of the second pulley 10 is mounted on the connecting shaft 11; the first rotating wheel 4 is arranged at the other end of the second rotating wheel 10; the inner end of the volute spiral spring 14 is arranged on the end surface of the second rotating wheel 10 close to one side of the connecting shaft 11; the outer end of the scroll spring 14 is arranged on the corresponding side surface of the top frame 7; as shown in fig. 2, four fixing rods 6 are respectively installed at four corners of the lower end of the top frame 7, and the four fixing rods 6 are located between two first gaps 9; the eight guardrails 5 are respectively arranged between the four fixed rods 6 in pairs in a group, and the two guardrails 5 positioned between the two adjacent fixed rods 6 are distributed up and down; as shown in fig. 4, a bottom plate 71 is installed at the lower ends of the four fixing bars 6.

As shown in fig. 14, the driving mechanism 1 includes a gear mechanism 28, a first gear 29, a second gear 30, a third gear 31, a fourth gear 32, a driving motor 33, a fixed shell 34, a square notch 35, a gear support 36, a first gear shaft 37, a second gear shaft 38, and a motor support 39, wherein two square notches 35 are symmetrically formed on two side surfaces of the fixed shell 34; the driving motor 33 is mounted on the upper end surface of the inner side of the fixed shell 34 through two motor supports 39; the fourth gear 32 is arranged on the motor rotating shaft; the motor rotating shaft is provided with a clamping structure; the structure of both sides of the fourth gear 32 is completely the same, and for one side, as shown in fig. 15, a first gear shaft 37 is mounted on the upper end surface of the inner side of the fixed shell 34 through a gear support 36; the third gear 31 is installed at one end of the first gear shaft 37, and the third gear 31 is engaged with the fourth gear 32; the other end of the first gear shaft 37 is provided with a gear mechanism 28; the second gear 30 is mounted on the first gear shaft 37, and the second gear 30 is located between the gear mechanism 28 mounted on the first gear shaft 37 and the third gear 31; a second gear shaft 38 is mounted on the upper end surface of the inside of the fixed case 34 through a gear support 36; as shown in fig. 16, the first gear 29 is mounted on one end of the second gear shaft 38, and the first gear 29 is meshed with the second gear 30; the other end of the second gear shaft 38 is fitted with a gear mechanism 28.

As shown in fig. 32, the gear mechanism 28 includes a first spring 12, an outer ring gear 40, and a limit support 50; an annular limiting block 41, a limiting groove 42, a gear groove 43, a first tooth 44, a first limiting sheet 45, a first guide groove 46, a square block groove 70, a rotating wheel shaft 72, a rotating wheel shaft support 73, a circular hole 69, a first limiting block 47, a first limiting sheet groove 48, a first guide block 49, a third rotating wheel 51, a driving circular ring 52, a circular internal tooth 53, a second tooth 54, a second limiting sheet groove 55, a fourth notch 56, a driving column 57, a second limiting sheet 58, a square groove 59, a swinging shaft 60, a second guide block 61, a square block 62, a second limiting block 63, a second guide groove 64, a third guide groove 65, a third guide block 66 and a second spring 67, wherein as shown in fig. 25, a plurality of square block grooves 70 are uniformly formed on the outer circumferential surface of the circular internal tooth 53; the structures installed in each square block groove 70 are completely the same; for any of them; as shown in fig. 27, two second guide grooves 64 are symmetrically formed at both sides of the square block groove 70; the upper ends of the two second guide grooves 64 are respectively provided with a second limiting block 63; as shown in fig. 26, two side surfaces of the lower end of the square block 62 are respectively provided with a second guide block 61; the square block 62 is arranged in the square block groove 70 through the matching of the two second guide blocks 61 and the two second guide grooves 64; as shown in fig. 31, a third spring 74 is installed between the square block 62 and the square block groove 70; the upper end of the square block 62 is provided with a fourth gap 56; the swing shaft 60 is installed on both side surfaces of the fourth notch 56; as shown in fig. 33, the lower end of the second tooth 54 is arc-shaped; the lower end of the second tooth 54 is provided with a circular hole 69; the upper end of the second tooth 54 is provided with a second spacing piece groove 55; the second tooth 54 is mounted in the fourth notch 56 through the fitting of the circular hole 69 and the swing shaft 60; two third guide grooves 65 are symmetrically formed in the two sides of the second limiting sheet groove 55; two third guide blocks 66 are arranged on two sides of the lower end of the second limiting sheet 58; the second limiting sheet 58 is installed in the second limiting sheet groove 55 through the matching of the two third guide blocks 66 and the two third guide grooves 65; a second spring 67 is arranged between the second limiting sheet 58 and the second limiting sheet groove 55; as shown in fig. 28, a drive column 57 is mounted on the side surface of the second tooth 54; as shown in fig. 30, a plurality of radially distributed square grooves 59 are uniformly formed on one side surface of the driving ring 52; as shown in fig. 29, the driving ring 52 is mounted on the outer circumferential surface side of the circular inner teeth 53 and the square groove 59 of the driving ring 52 is engaged with the driving stud 57; as shown in fig. 15, a rotary shaft 72 is mounted on the upper end surface of the inside of the fixed case 34 via a rotary shaft support 73; as shown in fig. 23 and 24, one end of the third runner 51 is mounted on the runner shaft 72, and the other end of the third runner 51 is mounted on one side of the circular internal teeth 53; as shown in fig. 20, the outer ring teeth 40 are formed with a plurality of gear grooves 43 on the inner circumferential surface thereof; the outer ring gear 40 is matched with the second gear teeth 54 through the gear groove 43; as shown in fig. 19, a plurality of first teeth 44 are mounted on the outer circumferential surface of the outer ring teeth 40; as shown in fig. 19, each first tooth 44 is provided with a first stopper groove 48; the structures arranged in each first limiting sheet groove 48 are completely the same; for any of them; as shown in fig. 21, two first guide grooves 46 are symmetrically formed on both sides of the first stopper groove 48; as shown in fig. 22, a first stopper 47 is mounted at the upper end of each of the two first guide grooves 46; two side surfaces of the lower end of the first limiting sheet 45 are respectively provided with a first guide block 49; the first limiting sheet 45 is arranged in the first limiting sheet groove 48 through the matching of the two first guide blocks 49 and the two first guide grooves 46; as shown in fig. 34, the first spring 12 is installed between the first stopper 45 and the first stopper groove 48; the annular limiting 41 is arranged on the limiting support 50; as shown in FIG. 18, a plurality of stopper grooves 42 are uniformly formed on the inner circumferential surface of the annular stopper 41; as shown in fig. 17, the retaining groove 42 is engaged with the first tooth 44.

The limit support 50 is mounted on the upper end surface of the inner side of the fixed shell 34; the gear mechanism 28 mounted on the first gear shaft 37 is connected to the first gear shaft 37 through the side end faces of the outer ring teeth 40 in the gear mechanism 28; the gear mechanism 28 mounted on the second gear shaft 38 is connected to the second gear shaft 38 through a side end face of the outer ring teeth 40 in the gear mechanism 28.

The driving mechanism 1, the supporting mechanism 2 and the hanging platform mechanism 3 are connected through four steel ropes; the connection modes of the four steel ropes are the same; for any one of the steel cables, one end of the steel cable is wound on the third rotating wheel 51 on one of the gear mechanisms 28 in the driving mechanism 1; the other end of the steel rope is respectively wound on two first rotating wheels 4 at corresponding corners of a top frame 7 in the hanging platform mechanism 3 through two steel ropes.

As shown in fig. 35, one end of the steel cable wound around the second reel 10 connected to the first reel 4 is connected to the steel cable wound around the adjacent first reel 4 in the same plane as the first reel 4, and the connection point is 1/2 which is located at a distance greater than the length of the top frame from the top frame. 1/2, the balance of the platform can be guaranteed, and the balance point of the steel cable can be automatically adjusted to the middle position of the platform when one of the steel cables is broken.

The supporting mechanism 2 includes a weight 15, a first supporting plate 16, a second supporting plate 17, a third supporting plate 18, a fourth supporting plate 19, a transition wheel 20, a second notch 21, a third notch 22, a rotating shaft 23, a fifth notch 68, a supporting shaft 24, a first square hole 25, a supporting hole 26, and a second square hole 27, wherein as shown in fig. 8, one end of the second supporting plate 17 is provided with the second square hole 27; the first support plate 16 is mounted on the upper end of the second support plate 17; as shown in fig. 11, the first support plate 16 is provided with a first square hole 25, and the first square hole 25 is communicated with a second square hole 27; as shown in fig. 13, two rotating shafts 23 are mounted in parallel on the upper end wall surface of the first square hole 25; a transition wheel 20 is arranged on each of the two rotating shafts 23; two rotating shafts 23 connected with each other are arranged at the joint of the first square hole 25 and the second square hole 27, and the axial directions of the two rotating shafts 23 are perpendicular to a plane formed by the axial lines of the two rotating shafts 23 arranged at the upper end of the first square hole 25; two transition wheels 20 are respectively arranged on the two rotating shafts 23 at the joint of the first square hole 25 and the second square hole 27; as shown in fig. 8, a weight 15 is mounted on the end surface of the second support plate 17 on both sides of the first support plate 16; as shown in fig. 10, one end of the third supporting plate 18 is opened with a second notch 21; a fifth gap 68 is formed on the third supporting plate 18; the fifth notch 68 is adjacent to the second notch 21; two supporting holes 26 are symmetrically formed on two side surfaces of the fifth notch 68; as shown in fig. 9, one end of the third support plate 18 away from the second notch 21 is mounted on the side of the first support plate 16; two ends of the second gap 21 are respectively provided with a rotating shaft 23; two transition wheels 20 are respectively arranged on two rotating shafts 23 in the second gap 21; as shown in fig. 12, the upper end of the fourth supporting plate 19 is provided with a third gap 22; two parallel rotating shafts 23 are arranged on the side surface of the third gap 22; a transition wheel 20 is arranged on each of the two rotating shafts 23 in the third gap 22; two side surfaces of the fourth supporting plate 19 close to one end of the third gap 22 are respectively provided with a supporting shaft 24; the fourth support plate 19 is mounted on the third support plate 18 by the engagement of the two support shafts 24 with the two support holes 26.

The lower end of the fourth supporting plate 19 is triangular; the effect of this is to make the support mechanism 2 more stable by the stability of the triangle.

As shown in fig. 35, one end of the wire is wound around the third pulley 51 of one of the gear mechanisms 28 in the driving mechanism 1; the other end passes through the second square hole and the first square hole 25, and the steel rope respectively bypasses the transition wheel 20 at the joint of the first square hole and the second square hole 27 and the transition wheel 20 at the upper end of the first square hole 25; then passes through the transition wheel 20 on the fourth support plate 19 and the third support plate 18; and finally connected with the platform mechanism 3.

As an alternative to eight guard rails 5, twelve guard rails 5 provide more safety and a spacing of 12 ensures that the foot does not protrude.

In summary, the following steps:

when the steel rope of the lifting platform designed by the invention is broken in the working process, the lifting platform can be in a balanced state through self adjustment.

In the invention, the fourth gear 32 is arranged on the rotating shaft of the motor; the third gear 31 is mounted on one end of the first gear shaft 37; and the third gear 31 is meshed with the fourth gear 32; the other end of the first gear shaft 37 is provided with a gear mechanism 28; the second gear 30 is mounted on a first gear shaft 37, the first gear 29 is mounted on one end of a second gear shaft 38, and the first gear 29 is meshed with the second gear 30; the other end of the second gear shaft 38 is provided with a gear mechanism 28; when the driving motor 33 drives the motor 33 rotating shaft 13 to rotate, the motor rotating shaft drives the fourth gear 32 to rotate; the fourth gear 32 drives the third gear 31 to rotate; the third gear 31 drives the first gear shaft 37 to rotate; the first gear shaft 37 drives the gear mechanism 28 mounted thereon to rotate; meanwhile, the first gear shaft 37 rotates to drive the second gear 30 to rotate; the second gear 30 rotates to drive the first gear 29 to rotate; the first gear 29 rotates to drive the second gear shaft 38 to rotate; the rotation of the second gear shaft 38 causes the gear mechanism 28 mounted thereon to rotate.

The gear mechanism 28 mounted on the first gear shaft 37 in the present invention is connected to the first gear shaft 37 through the side end faces of the outer ring teeth 40 in the gear mechanism 28; the gear mechanism 28 mounted on the second gear shaft 38 is connected to the second gear shaft 38 through a side end face of the outer ring teeth 40 in the gear mechanism 28; the limiting support 50 is arranged on the upper end surface of the inner side of the fixed shell 34; the annular limiting 41 is arranged on the limiting support 50; a plurality of first teeth 44 are arranged on the outer circular surface of the outer ring tooth 40; the first limiting sheet 45 is arranged in the first limiting sheet groove 48 through the matching of the two first guide blocks 49 and the two first guide grooves 46; a first spring 12 is arranged between the first limiting sheet 45 and the first limiting sheet groove 48; the square block 62 is arranged in the square block groove 70 through the matching of the two second guide blocks 61 and the two second guide grooves 64; a third spring 74 is arranged between the square block 62 and the square block groove 70; the second tooth 54 is mounted in the fourth notch 56 through the fitting of the circular hole 69 and the swing shaft 60; the second limiting sheet 58 is installed in the second limiting sheet groove 55 through the matching of the two third guide blocks 66 and the two third guide grooves 65; a second spring 67 is arranged between the second limiting sheet 58 and the second limiting sheet groove 55; a driving column 57 is mounted on the side surface of the second tooth 54; a plurality of square grooves 59 are uniformly arranged on one side surface of the driving ring 52; the driving circular ring 52 is arranged on the circular internal teeth 53, and the square groove 59 on the driving circular ring 52 is matched with the driving column 57; the outer ring gear 40 is arranged at one end of the circular inner gear 53 through the third runner 51 matched with the second tooth 54 through the gear groove 43; a rotary wheel shaft 72 is mounted on the upper end surface of the inner side of the fixed shell 34 through a rotary wheel shaft support 73; one end of the third runner 51 is mounted on the runner shaft 72, and the other end of the third runner 51 is mounted on one side surface of the circular internal teeth 53; when the first gear shaft 37 and the second gear shaft 38 rotate, the outer ring gear 40 is driven to rotate; the outer ring gear 40 drives the circular inner gear 53 to rotate; the circular internal teeth 53 drive the third rotating wheel 51 to rotate; under normal operation, the maximum transmission force between the circular inner teeth 53 and the outer ring teeth 40 is adjusted by adjusting the swing angle of the second teeth 54, so that the tensile force borne by each steel rope is adjusted according to the weight borne by the upper side of the hanging platform; the total weight borne by the 4 steel ropes is larger than the weight borne by the upper side of the hanging platform; only in this way, the steel rope can pull the hanging platform to work; if the weight carried by the upper side of the platform is 4G, the tension carried by the 4 steel ropes needs to be adjusted so that the tension carried by each steel rope is 1.1G; when one steel cord is broken, the tensile force carried by each steel cord does not become 1.1G since the angle of the second tooth 54 does not change; thus, when one steel rope is broken, the rest 3 steel ropes can be recycled; but as the number of the steel ropes is reduced, the sum of the weight borne by the steel ropes is 3.3G, which is less than the weight borne by the upper side of the hanging platform; the circular inner teeth 53 are rotated relative to the outer ring teeth 40; the inner ring teeth are connected with a third rotating wheel 51, and the third rotating wheel 51 is connected with a steel rope; the platform will move downwards; if the descending speed of the hanging platform is slow; at this time, the damage of personnel on the hanging platform can not be caused; if the descending speed of the hanging platform is too fast; at this time, the rotational speed of the circular internal teeth 53 is high; so that the circular inner teeth 53 generate centrifugal force; so that the first stopper piece 45 positioned in the first tooth 44 moves into the stopper groove 42; the circular internal teeth 53 are locked; when the circular internal teeth 53 are locked, the centrifugal force is reduced to zero; now under the action of the first spring 12; the first stopper piece 45 is restored into the first tooth 44; at this time, the circular internal teeth 53 continue to rotate, and the rotating speed is continuously accelerated; when the centrifugal force generated by the rotation of the circular internal teeth 53 can move the first limiting sheet 45 into the limiting groove 42; the first limiting sheet 45 clamps the circular inner teeth 53 again, and so on; the circular inner teeth 53 are in an intermittent locking state; when the hanging platform needs to stop in the working process; the motor rotating shaft is locked by controlling a locking structure on the motor rotating shaft; thereby enabling the hanging platform to be in a stop state; when the elevator descends, if one steel rope is suddenly broken, the clamping structure on the motor rotating shaft is immediately in a clamping state when sensing the change of force; if a steel rope is suddenly broken in the next process and a clamping structure on a motor rotating shaft fails, the circular internal teeth 53 can drive the external ring teeth 40 to rotate and the rotating speed is high; the outer ring teeth 40 generate a large centrifugal force; so that the second stopper 58 located in the second tooth 54 moves into the gear groove 43; the outer ring gear 40 is locked; when the outer ring teeth 40 are stuck, the centrifugal force is reduced to zero; now under the action of the second spring 67; the second stop tab 58 will return to the second tooth 54; at this time, the outer ring gear 40 continues to rotate, and the rotating speed is continuously accelerated; when the centrifugal force generated by the rotation of the outer ring gear 40 can move the second stopper piece 58 into the gear groove 43; the second limiting sheet 58 clamps the outer ring gear 40 again, and so on; the outer ring teeth 40 will be in an intermittent stuck state; the circular inner teeth 53 are controlled by the outer ring teeth 40; the first limiting piece 45 and the second limiting piece 58 designed by the invention have the function of carrying out multiple protection on the lifting platform.

In the invention, a driving mechanism, a supporting mechanism 2 and a hanging platform mechanism 3 are connected through four steel ropes; the connection modes of the four steel ropes are the same; for any one of the steel cables, one end of the steel cable is wound on the third rotating wheel 51 on one of the gear mechanisms 28 in the driving mechanism 1; the other end passes through the second square hole and the first square hole 25, and the steel rope respectively bypasses the transition wheel 20 at the joint of the first square hole and the second square hole 27 and the transition wheel 20 at the upper end of the first square hole 25; then passes through the transition wheel 20 on the fourth support plate 19 and the third support plate 18; finally, the two steel ropes are respectively wound on two first rotating wheels 4 at corresponding corners of a top frame 7 in the hanging platform mechanism 3. The second wheel 10 connected to the first wheel 4 is connected via a cable to another cable wound around the first gear 29 and lying in the same plane. The four rotating shafts 13 are completely the same in structure; for one, one end of the second pulley 10 is mounted on the shaft 13; the first rotating wheel 4 is arranged at the other end of the second rotating wheel 10; the inner end of the volute spiral spring 14 is arranged on the end surface of the second rotating wheel 10 close to the rotating shaft 13; the outer end of scroll spring 14 is mounted on the side of first notch 9; the structures arranged on the two connecting shafts 11 are completely the same and the structures arranged on the two ends of one of the connecting shafts 11 are completely the same; for one of the ends, one end of the second runner 10 is mounted on the connecting shaft 11; the first rotating wheel 4 is arranged at the other end of the second rotating wheel 10; the inner end of the volute spiral spring 14 is arranged on the end surface of the second rotating wheel 10 close to one side of the connecting shaft 11; the outer end of the scroll spring 14 is arranged on the corresponding side surface of the top frame 7; when the four third rotating wheels 51 rotate, the four third rotating wheels 51 respectively drive the steel ropes wound thereon to move; the steel ropes sequentially move through the corresponding transition wheels 20, and finally the four first rotating wheels 4 are driven to rotate for a certain angle; rotation of first rotor 4 will exert force on corresponding spiral spring 14; after the force on scroll spring 14 is completed; the four first rotating wheels 4 drive the whole lifting platform mechanism 3 to move; as shown in fig. 36, when one of the steel cords breaks; the second runner 10 located at the upper side among the two corresponding second runners 10 is rotated in the opposite direction by the corresponding scroll spring 14; as shown in fig. 36, another wire connected to the wire wound on the second reel 10 is pulled by the wire wound thereon during the rotation; so that the stress point moves to the middle position; finally, the whole hanging platform reaches a balance state; as shown in fig. 37, when two steel cords located on the same side are broken simultaneously; the two second rotating wheels 10 on the corresponding side and on the lower side rotate in opposite directions under the action of the corresponding scroll springs 14; as shown in fig. 37, another wire connected to the wire wound on the second reel 10 is pulled by the wire wound thereon during the rotation; so that the stress point moves to the middle position; and finally, the whole hanging platform reaches a balance state.

The specific implementation mode is as follows: when the hanging platform works; the driving motor 33 drives the motor 33 to rotate the rotating shaft 13; the motor shaft drives the fourth gear 32 to rotate; the fourth gear 32 drives the third gear 31 to rotate; the third gear 31 drives the first gear shaft 37 to rotate; the first gear shaft 37 drives the gear mechanism 28 mounted thereon to rotate; meanwhile, the first gear shaft 37 rotates to drive the second gear 30 to rotate; the second gear 30 rotates to drive the first gear 29 to rotate; the first gear 29 rotates to drive the second gear shaft 38 to rotate; the second gear shaft 38 rotates to drive the gear mechanism 28 mounted thereon to rotate; the gear mechanism 28 rotates to move the steel rope wound on the gear mechanism; the steel ropes sequentially move through the corresponding transition wheels 20, and finally the four first rotating wheels 4 are driven to rotate for a certain angle; rotation of first rotor 4 exerts force on corresponding spiral spring 14; after the force on scroll spring 14 is completed; the four first rotating wheels 4 drive the whole lifting platform mechanism 3 to move; when one of the steel cords breaks; the second runner 10 located at the upper side among the two corresponding second runners 10 is rotated in the opposite direction by the corresponding scroll spring 14; another steel rope connected with the steel rope wound on the second rotating wheel 10 is pulled to move by the steel rope wound on the second rotating wheel in the rotating process; so that the stress point moves to the middle position; finally, the whole hanging platform reaches a balance state; when two steel cords located on the same side are simultaneously broken; the two second rotating wheels 10 on the corresponding side and on the lower side rotate in opposite directions under the action of the corresponding scroll springs 14; another steel rope connected with the steel rope wound on the second rotating wheel 10 is pulled to move by the steel rope wound on the second rotating wheel in the rotating process; so that the stress point moves to the middle position; and finally, the whole hanging platform reaches a balance state. In addition, only one steel rope is broken, the lifting platform can slowly and intermittently descend, and the repeated use of the remaining three steel ropes is guaranteed.

Claims

1. A hanging platform for building use is characterized in that: the device comprises a driving mechanism, supporting mechanisms and a hanging platform mechanism, wherein the two supporting mechanisms are positioned on two sides of the driving mechanism; the driving mechanism, the supporting mechanism and the hanging platform mechanism are connected in sequence through steel ropes;

the hanging platform mechanism comprises a first rotating wheel, a guardrail, a fixed rod, a bottom plate, a top frame, a shaft hole, a first gap, a second rotating wheel, a connecting shaft, a rotating shaft and a volute spiral spring, wherein the two ends of the top frame are respectively provided with the first gap which is positioned at the upper end of the top frame; two shaft holes are formed in the two ends of the top frame and located on the lower sides of the two first notches; two rotating shafts are symmetrically arranged on the side surfaces of the two first gaps; the two connecting shafts are respectively arranged in the two shaft holes; the four rotating shafts are completely the same in mounting structure; for one, one end of the second rotating wheel is arranged on the rotating shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of one side, close to the rotating shaft, of the second rotating wheel; the outer end of the scroll spring is arranged on the side surface of the first notch; the structures arranged on the two connecting shafts are completely the same, and the structures arranged on the two ends of one of the connecting shafts are completely the same; for one end, one end of the second rotating wheel is arranged on the connecting shaft; the first rotating wheel is arranged at the other end of the second rotating wheel; the inner end of the volute spiral spring is arranged on the end face of the second rotating wheel close to one side of the connecting shaft; the outer end of the scroll spring is arranged on the corresponding side surface on the top frame; the four fixing rods are respectively arranged at four corners of the lower end of the top frame and are positioned between the two first gaps; the eight guardrails are arranged between the four fixed rods in a group two by two respectively, and the two guardrails positioned between the two adjacent fixed rods are distributed up and down; the bottom plate is arranged at the lower ends of the four fixed rods;

the driving mechanism comprises a gear mechanism, a first gear, a second gear, a third gear, a fourth gear, a driving motor, a fixed shell, square notches, a gear support, a first gear shaft, a second gear shaft and a motor support, wherein two square notches are symmetrically formed in two side faces of the fixed shell; the driving motor is supported and installed on the upper end surface of the inner side of the fixed shell through two motors; the fourth gear is arranged on the motor rotating shaft; the motor rotating shaft is provided with a clamping structure; the structures arranged on the two sides of the fourth gear are completely the same, and for one side of the fourth gear, the first gear shaft is arranged on the upper end surface of the inner side of the fixed shell through the gear support; the third gear is arranged at one end of the first gear shaft and is meshed with the fourth gear; the other end of the first gear shaft is provided with a gear mechanism; the second gear is arranged on the first gear shaft and is positioned between the gear mechanism arranged on the first gear shaft and the third gear; the second gear shaft is supported and installed on the upper end surface of the inner side of the fixed shell through a gear; the first gear is arranged at one end of the second gear shaft and is meshed with the second gear; the other end of the second gear shaft is provided with a gear mechanism;

the gear mechanism comprises a first spring, outer ring teeth and a limiting support; the gear mechanism comprises an annular limiting part, a limiting groove, a gear groove, a first tooth, a first limiting sheet, a first guide groove, a square block groove, a rotating wheel shaft support, a circular hole, a first limiting block, a first limiting sheet groove, a first guide block, a third rotating wheel, a driving circular ring, circular inner teeth, second teeth, a second limiting sheet groove, a fourth notch, a driving column, a second limiting sheet, a square groove, a swinging shaft, a second guide block, a square block, a second limiting block, a second guide groove, a third guide block and a second spring, wherein a plurality of square block grooves are uniformly formed in the outer circular surface of the circular inner teeth; the structures arranged in the square block grooves are completely the same; for any of them; two second guide grooves are symmetrically formed in two sides of the square block groove; the upper ends of the two second guide grooves are respectively provided with a second limiting block; two side surfaces of the lower end of the square block are respectively provided with a second guide block; the square block is arranged in the square block groove through the matching of the two second guide blocks and the two second guide grooves; a third spring is arranged between the square block and the square block groove; the upper end of the square block is provided with a fourth gap; the swing shaft is arranged on two side surfaces of the fourth notch; the lower end of the second tooth is arc-shaped; the lower end of the second tooth is provided with a circular hole; the upper end of the second tooth is provided with a second limiting piece groove; the second tooth is arranged in the fourth gap through the matching of the circular hole and the swinging shaft; two third guide grooves are symmetrically formed in two sides of the second limiting sheet groove; two third guide blocks are arranged on two sides of the lower end of the second limiting piece; the second limiting piece is arranged in a second limiting piece groove through the matching of the two third guide blocks and the two third guide grooves; a second spring is arranged between the second limiting sheet and the second limiting sheet groove; a driving column is arranged on the side surface of the second tooth; a plurality of radially distributed square grooves are uniformly formed in one side surface of the driving ring; the driving circular ring is arranged on one side of the outer circular surface of the circular inner tooth, and a square groove on the driving circular ring is matched with the driving column; the rotating wheel shaft is supported and arranged on the upper end surface of the inner side of the fixed shell through the rotating wheel shaft; one end of the third rotating wheel is arranged on the rotating wheel shaft, and the other end of the third rotating wheel is arranged on one side surface of the circular internal tooth; the inner circle surface of the outer ring gear is provided with a plurality of gear grooves; the outer ring gear is matched with the second gear through the gear groove; a plurality of first teeth are arranged on the outer circular surface of the outer ring teeth; each first tooth is provided with a first limiting sheet groove; the structures arranged in the grooves of the first limiting pieces are completely the same; for any of them; two first guide grooves are symmetrically formed in two sides of the first limiting sheet groove; the upper ends of the two first guide grooves are respectively provided with a first limiting block; two side surfaces of the lower end of the first limiting sheet are respectively provided with a first guide block; the first limiting piece is arranged in the first limiting piece groove through the matching of the two first guide blocks and the two first guide grooves; a first spring is arranged between the first limiting sheet and the first limiting sheet groove; the annular limit is arranged on the limit support; a plurality of limiting grooves are uniformly formed in the inner circular surface of the annular limiting; the limiting groove is matched with the first tooth;

the limiting support is arranged on the upper end surface of the inner side of the fixed shell; the gear mechanism arranged on the first gear shaft is connected with the first gear shaft through the side end face of the outer ring gear in the gear mechanism; the gear mechanism arranged on the second gear shaft is connected with the second gear shaft through the side end surface of the outer ring gear in the gear mechanism;

the driving mechanism, the supporting mechanism and the hanging platform mechanism are connected through four steel ropes; the connection modes of the four steel ropes are the same; for any one of the steel ropes, one end of the steel rope is wound on a third rotating wheel on one of the gear mechanisms in the driving mechanism; the middle of the middle is transited by a supporting mechanism, and finally the other end of the middle is respectively wound on two first rotating wheels at corresponding corners of a top frame in the hanging platform mechanism through two steel ropes;

one end of a steel rope wound on a second rotating wheel connected with the first rotating wheel is connected to the steel rope wound on an adjacent first rotating wheel on the same plane with the first rotating wheel, and the distance from a connecting point to the top frame is 1/2 which is greater than the length of the top frame;

the supporting mechanism comprises a weight block, a first supporting plate, a second supporting plate, a third supporting plate, a fourth supporting plate, a transition wheel, a second notch, a third notch, a rotating shaft, a fifth notch, a supporting shaft, a first square hole, a supporting hole and a second square hole, wherein one end of the second supporting plate is provided with the second square hole; the first supporting plate is arranged at the upper end of the second supporting plate; a first square hole is formed in the first supporting plate and communicated with the second square hole; two rotating shafts are arranged on the upper end wall surface of the first square hole in parallel; a transition wheel is arranged on each of the two rotating shafts; two rotating shafts which are connected are arranged at the joint of the first square hole and the second square hole, and the axial directions of the two rotating shafts are vertical to the plane formed by the axes of the two rotating shafts arranged at the upper end of the first square hole; two transition wheels are respectively arranged on the two rotating shafts at the joint of the first square hole and the second square hole; the end surfaces of the upper ends of the second supporting plates, which are positioned at the two sides of the first supporting plate, are respectively provided with a heavy block; one end of the third supporting plate is provided with a second notch; a fifth gap is formed in the third supporting plate; the fifth gap is close to the second gap; two supporting holes are symmetrically formed in the two side faces of the fifth notch; one end of the third supporting plate, which is far away from the second notch, is arranged on the side surface of the first supporting plate; two ends of the second gap are respectively provided with a rotating shaft; two transition wheels are respectively arranged on the two rotating shafts in the second gap; the upper end of the fourth supporting plate is provided with a third gap; two parallel rotating shafts are arranged on the side surface of the third gap; a transition wheel is arranged on each of the two rotating shafts in the third gap; two side surfaces of one end of the fourth supporting plate, which is close to the third gap, are respectively provided with a supporting shaft; the fourth supporting plate is arranged on the third supporting plate through the matching of the two supporting shafts and the two supporting holes;

the lower end of the fourth supporting plate is triangular;

under normal work, the total weight borne by the 4 steel ropes is larger than the weight borne by the upper side of the hanging platform by adjusting the swing angle of the second tooth; when one steel rope is broken, the weight borne by the other 3 steel ropes is smaller than the weight borne by the upper side of the hanging platform.

2. A hanging platform for use in a building of claim 1, wherein: one end of the steel rope is wound on a third rotating wheel on one gear mechanism in the driving mechanism; the other end of the steel rope passes through the second square hole and the first square hole, and the steel rope respectively bypasses a transition wheel at the joint of the first square hole and the second square hole and a transition wheel at the upper end of the first square hole; then the first support plate and the second support plate pass through transition wheels on the fourth support plate and the third support plate; and finally, the lifting platform mechanism is connected.

3. A hanging platform for use in a building of claim 1, wherein: an alternative to eight guardrails is twelve.