Safety type anti-falling construction hoist

Abstract

The invention relates to the technical field of lifters, in particular to a safety type anti-falling construction lifter which comprises a lifter bottom plate, lifting frame bodies are fixedly installed at the left top end and the right top end of the lifter bottom plate respectively, a stabilizing beam plate is fixedly installed between the top ends of the two lifting frame bodies, and a motor base is fixedly installed at the top end of the stabilizing beam plate. A double-shaft motor is fixedly installed on the motor base, vertical plates are fixedly installed at the close ends of the two lifting frame bodies correspondingly, positioning grooves are formed in the two vertical plates correspondingly, a lifting hopper sliding up and down is installed between the two vertical plates, and sliding blocks located in the corresponding positioning grooves are fixedly installed at the left end and the right end of the lifting hopper correspondingly. Fixing blocks are fixedly installed on the two sliding blocks respectively, rolling wheels are installed at the two ends of the double-shaft motor respectively, pull ropes are installed between the two rolling wheels and the corresponding fixing blocks below the rolling wheels respectively, and braking assemblies are arranged at the left end and the right end of the lifting bucket respectively. And through two times of effective friction braking, the safety of the elevator is improved.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a safe anti-falling construction elevator. Background Art

[0002] In recent years, with the gradual acceleration of the pace of industrialization, elevators have been widely used in various industries such as factories, construction sites, and coal mines. An elevator is a kind of mechanical equipment that can be raised and lowered. It can lift the goods or workers at the bottom to a high place for work, greatly improving work efficiency. Therefore, in construction, workers often use elevators to perform high-altitude operations or move goods.

[0003] Although elevators facilitate workers' climbing operations, in actual use, existing elevators usually use motors to drive cable coils to wind traction ropes to achieve the lifting of the elevator. After long-term use, the traction rope may break due to heavy load, causing the elevator to fall, thereby threatening the life safety of the workers. Although some elevators are equipped with shock-absorbing devices, these devices are not convenient to use and the shock-absorbing effect is poor.

[0004] Therefore, the present invention provides a safe anti-fall type construction elevator to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a safe anti-fall construction elevator, which effectively solves the problem that when the traction rope on the existing elevator breaks, the elevator falls and poses a threat to the life safety of personnel.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A safe and fall-proof construction elevator comprises an elevator base plate, a lifting frame body is fixedly installed on the left and right top ends of the elevator base plate, a stabilizing beam plate is fixedly installed between the top ends of the two lifting frames, a motor base is fixedly installed on the top end of the stabilizing beam plate, a double-axis motor is fixedly installed on the motor base, vertical plates are fixedly installed on the near ends of the two lifting frames, positioning grooves are respectively provided on the two vertical plates, a lifting bucket that slides up and down is installed between the two vertical plates, sliders located inside the corresponding positioning grooves are fixedly installed on the left and right ends of the lifting bucket, fixed blocks are fixedly installed on the two sliders, reels are installed on the two ends of the double-axis motor, pull ropes are installed between the two reels and the corresponding fixed blocks below, and brake assemblies are respectively provided on the left and right ends of the lifting bucket.

[0007] Preferably, the brake assembly includes a brake box, brake boxes are fixedly installed on the left and right sides of the bottom end of the lifting bucket, brake push plates are installed inside the two brake boxes, two fixed vertical plates are fixed on the bottom end of the lifting bucket, a brake spring is fixedly installed between each fixed vertical plate and the brake push plate on the same side, guide rods are fixedly installed on the two brake push plates, movable friction blocks are fixedly installed on the outer ends of the two brake push plates, friction grooves are respectively provided at the front and rear ends of the inner sides of the two vertical plates, fixed friction blocks are respectively provided inside the two friction grooves, and detection components are respectively provided on the two sliding blocks.

[0008] Preferably, a buffer plate is installed on the top of the elevator bottom plate, and four hidden grooves are opened on the buffer plate. A swing block is rotatably installed inside each hidden groove, a sliding rod is slidably installed on the top of each swing block, a pressure block is fixedly installed on the top of each sliding rod, and a buffer spring is sleeved on each sliding rod.

[0009] The cam is secured to the bottom of the second gear and is engageable with the first and second gears of the first and second gears, respectively.

[0010] Preferably, a coaxial rod is installed between the two swing blocks located on the same side, a linkage pulley group is connected between the two coaxial rods, and a trigger assembly is provided at the rear end of the buffer plate.

[0011] Preferably, a limit frame is fixedly installed on the bottom end of each linkage plate, a positioning block is fixedly installed on the bottom end of each limit frame, a built-in plate is fixedly installed on the bottom end of each synchronization plate, a built-in shell is fixedly installed on the inner end of each built-in plate, push rods are slidably installed on the front and rear ends of each built-in shell, a driving connecting rod is installed between each push rod and the positioning block on the same side, a contraction spring is installed on each positioning block, and friction holes are respectively provided on the front and rear ends of each positioning groove.

[0012] Preferably, the trigger assembly includes a sliding rack, which is slidably mounted on the bottom end of the buffer plate, a descending rod is slidably mounted on the rear end of the buffer plate, a compression spring is arranged on the descending rod, a bending plate is fixedly mounted on the rear end of the lifting bucket, a rotating shaft is mounted between the two bending plates, rolling wheels are respectively mounted on both ends of the rotating shaft, a self-rotating wheel is fixedly mounted on the rotating shaft, a concave cavity is opened on the self-rotating wheel, and a reset spring and a pressure rod are arranged inside the concave cavity.

[0013] Preferably, auxiliary plates are fixedly mounted on the front ends of the two lifting frames, and an auxiliary rod is fixedly mounted on each of the auxiliary plates.

[0014] Preferably, clamping plates are fixedly installed on the left and right top ends of the stabilizing beam plate, and an inclined rod is installed between each lifting frame and the bottom plate of the lift.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the pull rope breaks, the pulling spring brings the first detection rod and the second detection rod closer to each other. At this time, the first rack, the first gear, the driving pulley group, and the second gear move synchronously, and the moving slide rod will instantly break away from the contact plate. The brake spring pushes the brake push plate to fit the vertical plate, so that the moving friction block squeezes the fixed friction block to form a moving friction force, so as to realize the slow and smooth descent of the lifting bucket, avoid accidents, and improve the safety of the elevator.

[0016] 2. When the disengagement plate of the movable slide bar contacts, the linkage plate moves outward with the limit frame, so that the extrusion ball and the friction ball are squeezed to form friction, which can further slow down the falling speed of the lifting bucket. Due to the linkage between the components, the safety is improved. Through two effective friction brakes, the safety of the elevator is improved.

[0017] 3. When the two friction brakes fail, the pressure rod is quickly thrown out from the concave cavity and moves downward while pressing the top of the descending rod. The sliding rack engages with the trigger gear to rotate, and the four swing blocks rotate to a vertical state. The bottom surface of the lifting bucket is pressed on the top of the four pressure blocks, and the sliding rod slides toward the inside of the swing block. Due to the compression of the buffer spring, it has a good buffering effect, better shock absorption, and is more convenient to use. It also reduces the impact force of the lifting bucket, extends the service life of the equipment, and ensures the normal operation of the elevator in the later period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of the present invention Figure 1 ; Figure 2 A three-dimensional schematic diagram of the present invention Figure 2 ; Figure 3 It is a schematic diagram of the vertical plate structure of the present invention; Figure 4 This is a schematic diagram of the installation position of the sliding rack of the present invention; Figure 5 It is a schematic diagram of the lifting bucket structure of the present invention; Figure 6 It is a schematic diagram of the positioning groove of the present invention; Figure 7 It is a schematic diagram of the structure of the buffer plate of the present invention; Figure 8 This is a schematic diagram of the installation position of the brake box of the present invention; Fig. 9 It is a schematic diagram of the brake push plate structure of the present invention; Fig.10 It is a schematic diagram of the motor base and the dual-axis motor state of the present invention; Fig.11 It is a three-dimensional schematic cross-sectional view of the self-rotating wheel of the present invention; Fig.12 For the present invention Figure 5 A is an enlarged schematic diagram; Fig.13 For the present invention Figure 6 The enlarged schematic diagram of point B in FIG. Fig.14 For the present invention Figure 7 The enlarged schematic diagram is shown in Figure 2.

[0019] Markings in the figure: 1. Elevator bottom plate; 2. Elevator frame; 3. Stable beam plate; 4. Motor base; 5. Dual-axis motor; 6. Vertical plate; 7. Positioning groove; 8. Elevator bucket; 9. Slider; 10. Fixed block; 11. Reel; 12. Pull rope; 13. Brake box; 14. Brake push plate; 15. Fixed vertical plate; 16. Brake spring; 17. Guide rod; 19. Moving friction block; 20. Friction groove; 21. Fixed friction block; 22. Buffer plate; 23. Hidden groove; 24. Swing block; 25. Sliding rod; 26. Pressure block; 27. Buffer spring; 28. First detection rod; 29. ​​Second detection rod; 30. Pull spring; 31. First gear; 32. First rack ; 33. extension plate; 34. second gear; 35. driving pulley group; 36. synchronous plate; 37. second gear plate; 38. movable slide rod; 39. linkage plate; 40. contact plate; 41. coaxial rod; 42. linkage pulley group; 43. limit frame; 44. positioning block; 45. built-in plate; 46. built-in shell; 47. push rod; 48. driving connecting rod; 49. contraction spring; 50. friction hole; 51. sliding rack; 52. descending rod; 53. compression spring; 54. bending plate; 55. rotating shaft; 56. rolling wheel; 57. rotating wheel; 58. concave cavity; 59. reset spring; 60. pressure rod; 61. auxiliary plate; 62. auxiliary rod; 63. splint; 64. inclined rod. DETAILED DESCRIPTION

[0020] Refer to the following Figures 1 to 14 The embodiments of the present invention are described in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] A safe anti-fall construction hoist, such as Figure 1 , Figure 3 , Figure 5 , Fig.10 , Fig.12As shown, it includes a lift bottom plate 1, and a lift frame 2 is fixedly installed on the top of the left and right sides of the lift bottom plate 1, and the lift frame 2 is vertically arranged upward. A stabilizing beam 3 is fixedly installed between the tops of the two lift frames 2, and the stabilizing beam 3 can provide support stability for the two lift frames 2. A motor base 4 is fixedly installed on the top of the stabilizing beam 3, and a dual-axis motor 5 is fixedly installed on the motor base 4. The dual-axis motor 5 is connected to an external controller, and the controller is connected to an external power supply. Vertical plates 6 are fixedly installed on the ends of the two lift frames 2 that are close to each other, and vertical positioning grooves 7 are respectively opened on the two vertical plates 6. An upper and lower support plate is installed between the two vertical plates 6. A sliding lifting bucket 8, wherein sliders 9 are fixedly installed on the left and right ends of the lifting bucket 8, respectively, and the sliders 9 are slidably installed in the corresponding positioning grooves 7, and the tops of the two sliders 9 are fixedly installed with fixing blocks 10, respectively. Reels 11 are coaxially fixedly installed on the rotating shafts at both ends of the dual-axis motor 5, and pull ropes 12 are fixedly installed on the two reels 11, respectively. The lower ends of the two pull ropes 12 are fixedly installed on the corresponding fixing blocks 10, respectively, and the pull ropes 12 are located inside the lifting frame 2 on the same side, and the pull ropes 12 are steel wire ropes or other suitable components. Braking assemblies are respectively provided on the left and right ends of the lifting bucket 8, and through-holes are opened at both ends of the stabilizing beam plate 3, and the pull ropes 12 are arranged inside the through-holes; When in use, the construction workers fix the elevator bottom plate 1 on one side of the building wall, so that the rear ends of the two lifting frames 2 are set close to the wall, and the construction workers put the building materials into the lifting bucket 8, start the power supply, and the controller starts the double-axis motor 5 to rotate the two reels 11. When the two pull ropes 12 are wound on the reels 11, they will lift the fixed block 10. The pull ropes 12 and the sliders 9 slide up and down along the corresponding positioning grooves 7 until the lifting bucket 8 rises to a certain height. The double-axis motor 5 stops rotating, and the construction workers can unload the building materials. Due to the gravity of the lifting bucket 8, the two pull ropes 12 are in a taut state. When the pull rope 12 breaks, the brake assembly can immediately brake the lifting bucket 8 to prevent the lifting bucket 8 from falling quickly and make the lifting bucket 8 move slowly downward. This can reduce damage to the lifting bucket 8, avoid harm to personnel, and improve the safety of the elevator.

[0022] like Figure 6 , Fig. 9 , Fig.13As shown, the brake assembly includes a brake box 13, and the left and right sides of the bottom end of the lifting bucket 8 are respectively fixedly installed with brake boxes 13, and the ends of the two brake boxes 13 that are away from each other are open structures. The insides of the two brake boxes 13 are respectively installed with brake push plates 14 that can slide left and right along the inside of the brake box 13. Two fixed vertical plates 15 are fixed on the bottom end of the lifting bucket 8, and the fixed vertical plates 15 are arranged away from one end of the brake box 13 on the same side. A brake spring 16 is fixedly installed on each of the fixed vertical plates 15. The brake spring 16 The other end is fixedly mounted on the brake push plate 14 on the same side, guide rods 17 are fixedly mounted on both ends of the fixed vertical plate 15, and the guide rods 17 are fixedly mounted on the brake box 13. The guide rods 17 provide stability for the fixed vertical plate 15. The outer ends of the two brake push plates 14 that are away from each other are fixedly mounted with movable friction blocks 19, and the front and rear ends of the inner sides of the two vertical plates 6 are respectively provided with friction grooves 20, and the interiors of the two friction grooves 20 are respectively evenly provided with a plurality of fixed friction blocks 21, and the two sliders 9 are respectively provided with detection components; When the detection component detects that one of the pull ropes 12 is broken during the ascending process of the lifting bucket 8, the corresponding brake spring 16 will instantly push the brake push plate 14 to fit with the vertical plate 6, and the mobile friction block 19 will squeeze the fixed friction block 21. The friction between the mobile friction block 19 and the fixed friction block 21 will increase, and then the dual-axis motor 5 will bring the lifting bucket 8 down, and the mobile friction block 19 will slide against the fixed friction block 21 until the lifting bucket 8 slowly descends. Through the coordinated use of the pull rope 12, the mobile friction block 19, and the fixed friction block 21, the lifting bucket 8 can be slowly lowered, thereby improving the safety of the elevator; When the detection component detects that the two pull ropes 12 are broken, the brake springs 16 on the left and right sides will instantly push the corresponding brake push plates 14 to fit together with the vertical plate 6, and the movable friction block 19 will squeeze the fixed friction block 21. At this time, the movable friction block 19 will slide downward along the fixed friction block 21 until the lifting bucket 8 slowly descends. Since there is a certain friction force between the movable friction block 19 and the fixed friction block 21, the lifting bucket 8 can slowly descend, avoiding the phenomenon of the lifting bucket 8 falling suddenly and quickly, thereby improving the safety of the elevator and increasing its service life.

[0023] like Figure 7 , Fig.14As shown, a buffer plate 22 is fixedly installed on the top of the elevator bottom plate 1, and the buffer plate 22 is arranged just below the lifting bucket 8. Four hidden grooves 23 are opened on the buffer plate 22, and the hidden groove 23 is an L-shaped mechanism. The four hidden grooves 23 are symmetrically arranged with each other, and a swing block 24 is rotatably installed inside one end of each hidden groove 23, and a sliding rod 25 is slidably installed on the top of each swing block 24, and a pressure block 26 is fixedly installed on the top of each sliding rod 25. A buffer spring 27 is sleeved on each sliding rod 25, and one end of the buffer spring 27 is fixedly installed on the pressure block 26, and the other end is fixedly installed on the swing block 24. Under normal conditions, the swing block 24, the sliding rod 25, the pressure block 26, and the buffer spring 27 are completely hidden in the corresponding hidden groove 23. When both braking devices fail or are damaged, the lifting bucket 8 quickly descends to approach the buffer plate 22. At this time, the four swing blocks 24 will rotate to a vertical state, and the bottom surface of the lifting bucket 8 will be pressed against the four pressure blocks 26. Since the lifting bucket 8 has a certain impact force, the sliding rod 25 slides toward the inside of the swing block 24, and the buffer spring 27 compresses and unloads the force, which can have a good buffering effect on the lifting bucket 8, reducing the impact force and damage of the lifting bucket 8, and also improving the service life of the elevator, avoiding huge impacts, extending the service life, and ensuring the normal operation of the elevator in the later period.

[0024] like Fig. 9 , Fig.12 , Fig.13 As shown, the detection assembly includes a first detection rod 28 and a second detection rod 29, the length of the first detection rod 28 is smaller than the length of the second detection rod 29, and the top ends of the first detection rod 28 and the second detection rod 29 are respectively fixedly installed with slide plates. Under normal conditions, the slide plates are in sliding contact with the outside of the pull rope 12, and the first detection rod 28 is slidably installed on the front side of the top end of each slider 9, and the second detection rod 29 is slidably installed on the rear side of the top end of each slider 9. The top end of the second detection rod 29 on the same side is higher than the top end of the first detection rod 28, and the front and rear ends of each fixed block 10 are respectively fixedly installed with a pulling spring 30, the other end of the pulling spring 30 on the front side is fixedly installed on the second detection rod 29, and the other end of the pulling spring 30 on the rear side is fixedly installed on the first detection rod 28. The front and rear ends of the two sliders 9 are respectively fixedly installed with limiting plates, and under normal conditions, the limiting plates are in contact with the first detection rod 28 and the second detection rod 29, and the pulling spring 30 is in a stretched state at the same time; The first gear 31 is rotatably mounted on the outer ends of the two fixed blocks 10, the first detection rod 28 is fixedly mounted with a first rack 32 meshing with the first gear 31, the second detection rod 29 is fixedly mounted with a first rack 32 meshing with the first gear 31, the bottom ends of the two sliders 9 are fixedly mounted with downwardly arranged extension plates 33, the outer end of each extension plate 33 is rotatably mounted with a second gear 34, a driving pulley group 35 is installed between the first gear 31 and the second gear 34 on the same side, the driving pulley group 35 includes two driving pulleys and a driving belt, the first gear 31 and the second gear 34 on the same side are coaxially fixedly mounted with driving pulleys, and the two driving pulleys on the same side are connected There is a driving belt, and a synchronous plate 36 is fixedly installed on the bottom end of each extension plate 33. The synchronous plate 36 is slidably installed in the positioning groove 7 up and down. A second tooth plate 37 meshing with the second gear 34 is slidably installed on each synchronous plate 36 forward and backward, and a moving slide bar 38 extending to the bottom of the brake box 13 is fixedly installed on each second tooth plate 37. A square hole in the left and right directions is opened at the bottom end of each brake box 13. A linkage plate 39 is fixedly installed at the bottom end of each brake push plate 14. The linkage plate 39 is arranged in the corresponding square hole. A contact plate 40 is fixedly installed on the bottom end of each linkage plate 39. Under normal conditions, the inner end of the moving slide bar 38 presses against the contact plate 40, and the brake spring 16 is in a stretched state. When in use, the power supply is turned on, the controller starts the dual-axis motor 5 to rotate the two reels 11, and the two pull ropes 12 are wound around the corresponding reels 11. The two pull ropes 12 slide up and down along the corresponding positioning grooves 7 through the fixed block 10 and the slider 9. The slides on the first detection rod 28 and the second detection rod 29 always slide along the outside of the pull ropes 12. When one of the pull ropes 12 breaks, due to the lack of the pull rope 12 to block it, the corresponding pulling spring 30 contracts quickly, the first detection rod 28 and the second detection rod 29 approach each other, and at the same time, the two first racks 32 mesh with the first gear 31 and the driving pulley group 35 to rotate the second gear 34, and the second gear 34 slides with the second toothed plate 37. At this time, one end of the moving slide rod 38 will instantly break away from the contact plate 40, and the brake spring 16 will push the brake push plate 14 to fit with the vertical plate 6, and the moving friction block 19 will squeeze the fixed friction block 21. When the dual-axis motor 5 brings the lifting bucket 8 down, the moving friction block 19 will slide against the fixed friction block 21 until the lifting bucket 8 slowly descends, preventing the occurrence of safety accidents such as overspeed descent of the lifting bucket 8. Since the first detection rod 28 and the second detection rod 29 are constantly detecting the detection pull rope 12, accidents can be avoided. When the two pull ropes 12 break, due to the lack of the obstruction of the pull ropes 12, the corresponding pulling spring 30 shrinks rapidly, the first detection rod 28 and the second detection rod 29 approach each other, and at the same time, the two first racks 32 mesh with the first gear 31 and the driving pulley group 35 to rotate the second gear 34, and the second gear 34 slides with the second tooth plate 37. At this time, one end of the moving slide rod 38 will instantly detach from the contact plate 40, and the brake spring 16 will push the brake push plate 14 to fit with the vertical plate 6, and the moving friction block 19 will squeeze the fixed friction block 21. The lifting bucket 8 achieves a slow and smooth descent through the friction between the moving friction block 19 and the fixed friction block 21, avoiding the occurrence of accidents, improving the safety of the elevator, and making it more convenient and practical to use.

[0025] like Figure 4 As shown, a coaxial rod 41 is coaxially installed between the two left and right swing blocks 24 located on the same side, and the coaxial rod 41 is rotatably installed inside the buffer plate 22. A linkage pulley group 42 is connected between the two coaxial rods 41. The linkage pulley group 42 includes two linkage pulleys and a linkage belt. The two linkage pulleys are coaxially fixed on the left ends of the two coaxial rods 41 respectively, and the linkage belt is connected between the two linkage pulleys. A trigger assembly is provided at the rear end of the buffer plate 22.

[0026] like Figure 6 , Fig. 9 , Fig.12 , Fig.13 As shown, a limit frame 43 is fixedly installed on the bottom end of each linkage plate 39, and a limit cavity is arranged on the limit frame 43. The movable slide bar 38 can slide forward and backward inside the limit cavity. A positioning block 44 is fixedly installed on the bottom end of each limit frame 43. A built-in plate 45 is fixedly installed on the bottom end of each synchronization plate 36. A built-in shell 46 is fixedly installed on the inner end of each built-in plate 45. Built-in openings are respectively opened on the mutually close ends of the two built-in shells 46. Push rods 47 are respectively installed in the front and rear ends of each built-in opening for sliding forward and backward. A driving connecting rod 48 is rotatably installed on each push rod 47. The other end of each driving connecting rod 48 is rotatably installed on the positioning block 44 on the same side. A contraction spring 49 is respectively fixedly installed on each positioning block 44. The other end of each contraction spring 49 is fixedly installed on the built-in shell 46. Vertical friction holes 50 are respectively arranged on the front and rear ends of each positioning groove 7. A plurality of friction balls are evenly fixedly arranged inside the friction hole 50. An extrusion ball is fixedly arranged on one end of the push rod 47. When one end of the movable slide rod 38 disengages from the contact plate 40, the brake spring 16 pushes the brake push plate 14 to fit into the vertical plate 6, the movable friction block 19 squeezes the fixed friction block 21, and the contraction spring 49 contracts rapidly, the linkage plate 39 moves outward with the limit frame 43, and the positioning block 44 pushes the push rod 47 to slide into the friction hole 50 through the corresponding two driving links 48. The extrusion ball and the friction ball squeeze each other to form a friction force, which can further slow down the falling speed of the lifting bucket 8, realize the linkage coordination between the various components, and improve safety.

[0027] like Figure 2 , Figure 4 , Figure 5 , Fig.11 As shown, the trigger assembly includes a sliding rack 51, a gear hole is opened on the buffer plate 22, a trigger gear located inside the gear hole is coaxially fixedly installed on one of the coaxial rods 41, the sliding rack 51 is slidably installed on the bottom end of the buffer plate 22, and the sliding rack 51 is meshed with the trigger gear, and the rear end of the sliding rack 51 is provided with an inclined surface, and a descending rod 52 that can only slide up and down is installed on the rear end of the buffer plate 22, and the bottom end of the descending rod 52 contacts the inclined surface of the sliding rack 51, and a mounting plate is fixedly installed on the rear end of the descending rod 52, and a compression spring 53 is fixedly installed on the mounting plate, and the lower end of the compression spring 53 is fixedly installed on the bottom plate 1 of the elevator, and two bending plates 5 are fixedly installed on the rear end of the lifting bucket 8. 4. A rotating shaft 55 is rotatably installed between the two bending plates 54. Rolling wheels 56 are coaxially fixedly installed at both ends of the rotating shaft 55. The rolling wheels 56 are always in contact with the rear end surface of the vertical plate 6. A self-rotating wheel 57 is coaxially fixedly installed on the rotating shaft 55. The self-rotating wheel 57 is arranged correspondingly to the lowering rod 52 up and down. Three concave cavities 58 are opened on the self-rotating wheel 57. A reset spring 59 is fixedly installed inside each of the concave cavities 58. A pressure rod 60 is fixedly installed on the other end of the reset spring 59. The pressure rod 60 slides inside the concave cavity 58. A counterweight block is arranged inside the pressure rod 60. When the dual-axis motor 5 carries the lifting bucket 8 to rise and fall normally, the pressure rod 60 is always hidden inside the concave cavity 58, and the self-rotating wheel 57 will not contact the lowering rod 52. When the movable friction block 19, the fixed friction block 21, the friction ball, and the squeeze ball fail, the lifting bucket 8 will drop rapidly, and the two rolling wheels 56 will rotate rapidly against the vertical plate 6. When the rotation speed of the self-rotating wheel 57 reaches a certain level, the counterweight block will be quickly thrown out from the concave cavity 58 with the pressure rod 60, and the reset spring 59 will be stretched. When the lifting bucket 8 drops to a certain position, the thrown-out pressure rod 60 will press the top of the descending rod 52 to move downward. At this time, the self-rotating wheel 57 is no longer rotating, and the two rolling wheels 56 slide against the vertical plate 6. The bottom end of the descending rod 52 slides against the inclined surface of the sliding rack 51. The rack 51 slides forward while meshing with the trigger gear to rotate. The trigger gear rotates with the corresponding coaxial rod 41, and the interlocking pulley group 42 rotates synchronously. The four swing blocks 24 will rotate to a vertical state, and the bottom surface of the lifting bucket 8 will be pressed on the four pressure blocks 26. The sliding rod 25 slides toward the inside of the swing block 24. After the buffer spring 27 is compressed to a certain extent, the descending rod 52 will completely penetrate the elevator bottom plate 1. The four pressure blocks 26 can provide a good buffering effect for the lifting bucket 8, reduce the impact force of the lifting bucket 8, extend the service life of the equipment, and ensure the normal operation of the elevator in the later stage.

[0028] like Figure 1 As shown, auxiliary plates 61 are fixedly installed on the front ends of the two lifting frames 2, and auxiliary rods 62 are fixedly installed on each of the auxiliary plates 61. Ear plates are fixedly installed on the outer ends of the lifting bucket 8, and the ear plates are slidably installed on the auxiliary rods 62 to provide stability to the lifting bucket 8.

[0029] like Figure 1 , Figure 4 As shown, clamping plates 63 are fixedly installed on the left and right top ends of the stabilizing beam plate 3, and the rotating shafts at both ends of the dual-axis motor 5 are rotatably installed on the corresponding clamping plates 63. An inclined rod 64 is fixedly installed between each lifting frame 2 and the elevator bottom plate 1, thereby improving the stability of the elevator.

[0030] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixed installation, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A safety anti-fall construction elevator, comprising an elevator base plate (1), characterized in that: A lifting frame (2) is fixedly mounted on the left and right top ends of the lift bottom plate (1), a stabilizing beam (3) is fixedly mounted between the top ends of the two lifting frames (2), a motor base (4) is fixedly mounted on the top end of the stabilizing beam (3), a dual-axis motor (5) is fixedly mounted on the motor base (4), vertical plates (6) are fixedly mounted on the proximal ends of the two lifting frames (2), positioning grooves (7) are respectively provided on the two vertical plates (6), a lifting bucket (8) that slides up and down is mounted between the two vertical plates (6), sliders (9) located inside the corresponding positioning grooves (7) are fixedly mounted on the left and right ends of the lifting bucket (8), fixed blocks (10) are fixedly mounted on the two sliders (9), reels (11) are respectively mounted on the two ends of the dual-axis motor (5), pull ropes (12) are respectively mounted between the two reels (11) and the corresponding fixed blocks (10) below, and brake assemblies are respectively arranged on the left and right ends of the lifting bucket (8).

2. A safe anti-fall construction elevator according to claim 1, characterized in that: The brake assembly comprises a brake box (13), the left and right sides of the bottom end of the lifting bucket (8) are respectively fixedly mounted with brake boxes (13), the insides of the two brake boxes (13) are respectively mounted with brake push plates (14), the bottom ends of the lifting bucket (8) are respectively fixed with two fixed vertical plates (15), a brake spring (16) is fixedly mounted between each fixed vertical plate (15) and the brake push plate (14) on the same side, a guide rod (17) is respectively fixedly mounted on the two brake push plates (14), a movable friction block (19) is respectively fixedly mounted on the outer ends of the two brake push plates (14), friction grooves (20) are respectively arranged at the front and rear ends of the inner sides of the two vertical plates (6), fixed friction blocks (21) are respectively arranged inside the two friction grooves (20), and detection components are respectively arranged on the two sliders (9).

3. A safe anti-fall construction elevator according to claim 1, characterized in that: A buffer plate (22) is installed on the top of the elevator bottom plate (1), and four hidden grooves (23) are opened on the buffer plate (22). A swing block (24) is rotatably installed inside each hidden groove (23), and a sliding rod (25) is slidably installed on the top of each swing block (24). A pressure block (26) is fixedly installed on the top of each sliding rod (25), and a buffer spring (27) is sleeved on each sliding rod (25).

4. A safe anti-fall construction elevator according to claim 2, characterized in that: The detection assembly comprises a first detection rod (28) and a second detection rod (29); the first detection rod (28) is slidably mounted on the front side of the top end of each slider (9); the second detection rod (29) is slidably mounted on the rear side of the top end of each slider (9); a pulling spring (30) is respectively mounted between each fixed block (10) and the first detection rod (28) and the second detection rod; the outer ends of the two fixed blocks (10) are respectively rotatably mounted with a first gear (31); the first detection rod (28) and the second detection rod (29) are respectively fixedly mounted with a first rack (32) meshing with the first gear (31); the bottom ends of the two sliders (9) are respectively fixedly mounted with an extension plate ( 33), a second gear (34) is rotatably mounted on each of the extension plates (33), a driving pulley group (35) is mounted between the first gear (31) and the second gear (34) on the same side, a synchronization plate (36) is fixedly mounted on the bottom end of each of the extension plates (33), a second toothed plate (37) meshing with the second gear (34) is slidably mounted on each of the synchronization plates (36), a movable slide rod (38) extending to the bottom of the brake box (13) is fixedly mounted on each of the second toothed plates (37), a linkage plate (39) is fixedly mounted on the bottom end of each of the brake push plates (14), and a contact plate (40) is fixedly mounted on the bottom end of each of the linkage plates (39).

5. A safe anti-fall construction elevator according to claim 3, characterized in that: A coaxial rod (41) is installed between the two swing blocks (24) located on the same side, a linkage pulley group (42) is connected between the two coaxial rods (41), and a trigger assembly is provided at the rear end of the buffer plate (22).

6. A safe anti-fall construction elevator according to claim 4, characterized in that: A limit frame (43) is fixedly mounted on the bottom end of each linkage plate (39), a positioning block (44) is fixedly mounted on the bottom end of each limit frame (43), a built-in plate (45) is fixedly mounted on the bottom end of each synchronization plate (36), a built-in shell (46) is fixedly mounted on the inner end of each built-in plate (45), a push rod (47) is slidably mounted on the front and rear ends of each built-in shell (46), a driving connecting rod (48) is mounted between each push rod (47) and the positioning block (44) on the same side, a contraction spring (49) is mounted on each positioning block (44), and friction holes (50) are respectively arranged on the front and rear ends of each positioning groove (7).

7. A safe anti-fall construction elevator according to claim 5, characterized in that: The trigger assembly comprises a sliding rack (51), wherein the sliding rack (51) is slidably mounted on the bottom end of the buffer plate (22), a descending rod (52) is slidably mounted on the rear end of the buffer plate (22), a compression spring (53) is arranged on the descending rod (52), a bending plate (54) is fixedly mounted on the rear end of the lifting bucket (8), a rotating shaft (55) is mounted between the two bending plates (54), rolling wheels (56) are respectively mounted on both ends of the rotating shaft (55), a self-rotating wheel (57) is fixedly mounted on the rotating shaft (55), a concave cavity (58) is formed on the self-rotating wheel (57), and a return spring (59) and a pressure rod (60) are arranged inside the concave cavity (58).

8. A safe anti-fall construction elevator according to claim 1, characterized in that: An auxiliary plate (61) is fixedly mounted on the front ends of the two lifting frames (2), respectively, and an auxiliary rod (62) is fixedly mounted on each of the auxiliary plates (61).

9. A safe anti-fall construction elevator according to claim 1, characterized in that: Clamps (63) are respectively fixedly mounted on the left and right top ends of the stabilizing beam plate (3), and an inclined rod (64) is mounted between each lifting frame (2) and the bottom plate (1) of the lift.

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