Special lifting appliance for prefabricated stairs

Abstract

The utility model relates to the technical field of special lifting appliances for stairs, and discloses a special lifting appliance for prefabricated stairs, which comprises a bilaterally symmetrical base, bilaterally symmetrical supporting columns are fixedly connected to the upper surface of the base, a first sliding block is slidably connected to the outer wall of the supporting column on the right side, and a connecting rod is fixedly connected to the inside of the first sliding block. A first fixing block is slidably connected to the outer wall of the connecting rod, a driving assembly is arranged on one side of the outer wall of the first fixing block, a second sliding block is slidably connected to the outer wall of the supporting column on the left side, and a threaded rod is rotatably connected into the second sliding block. According to the lifting appliance special for the staircase, through cooperation of the first fixing block, the motor, the connecting rod, the first sliding block, the hydraulic rod, the supporting plate, the second fixing block, the placing plate, the second sliding block and the driving assembly, the lifting appliance special for the staircase can be used for lifting in multiple aspects, and the problem that the prefabricated staircase cannot be lifted in all aspects only through the driving assembly is solved; and the practicability and comprehensiveness of the special lifting appliance for stairs are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a special sling for prefabricated stairs. Background Art

[0002] Special hoists for stairs are used to suspend prefabricated stairs. They are stable, comprehensive and practical. They are designed to reduce manual labor and speed up work efficiency when prefabricated stairs need to be suspended and placed.

[0003] After searching, a special hanger for prefabricated stairs is disclosed in the announcement number: CN203922454U. The utility model relates to a special hanger, which is composed of a lifting ring, a side arm, a vertical shaft, a clamping link, a horizontal link, and a small horizontal link. The lower part of the lifting ring is fixedly connected to one end of the vertical shaft, and the vertical shaft passes through the hole of the horizontal link and is fixedly connected to the small horizontal link. The two ends of the small horizontal link are respectively hinged to one end of the clamping link, and the other end of the clamping link is hinged to the middle part of the side arm of the hanger. One end of the two side arms is respectively hinged to one end of the horizontal link, and the other end of the two side arms is fixed to the hook. In order to make the lifting more reliable, the width of the hook is greater than the thickness of the side arm. The utility model is suitable for hoisting machinery such as cranes, and has a simple structure, is easy to use, and is safe and reliable. In the application, the prefabricated stairs are placed in a fixed place through grooves, panels, protrusions, connecting blocks, and partitions, but it does not solve the problem that when the prefabricated stairs need to be suspended in multiple directions, it is impossible to suspend them in all directions, and the prefabricated stairs are prone to tipping over when they are grabbed. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a special lifting device for prefabricated stairs, which aims to improve the problem that when the prefabricated stairs need to be placed in all directions, the prefabricated stairs cannot be placed in all directions only by the machine body, and the prefabricated stairs are easily overturned by only grabbing when they are grabbed.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a special hanger for prefabricated stairs, comprising a left-right symmetrical base, a pillar fixedly connected to the upper surface of the base, a first slider slidably connected to the outer wall of the pillar on the right side, a connecting rod fixedly connected inside the first slider, a first fixed block slidably connected to the outer wall of the connecting rod, a driving assembly is provided on one side of the outer wall of the first fixed block, a second slider slidably connected to the outer wall of the pillar on the left side, a threaded rod rotatably connected inside the second slider, a placement plate fixedly connected to one side of the outer wall of the second slider, a motor fixedly connected to the upper surface of the placement plate, an output end of the motor fixedly connected to one end of the threaded rod, a second fixed block threadedly connected to the outer wall of the threaded rod, the first fixed rod fixedly connected inside the second slider, and the second fixed block slidably connected to the outer wall of the threaded rod.

[0006] Furthermore, the driving assembly includes a slide rail and a third slider, one end of the slide rail is fixedly connected to one side of the outer wall of the first fixed block, the other end of the slide rail is fixedly connected to one side of the outer wall of the second fixed block, and the third slider is internally slidably connected to the outer wall of the slide rail.

[0007] Furthermore, a hydraulic rod is fixedly connected to the upper surface of the base, the right output end of the hydraulic rod is fixedly connected to a support plate, one side of the outer wall of the support plate is fixedly connected to one side of the outer wall of the first slider, and the left output end of the hydraulic rod is fixedly connected to the lower surface of the second slider.

[0008] Furthermore, a turntable is rotatably connected to the lower surface of the third sliding block, and a first connecting block is fixedly connected to the lower surface of the turntable.

[0009] Furthermore, one side of the outer wall of the first connection block is rotatably connected to a limiting block, and the inside of the limiting block is slidably connected to a first limiting rod.

[0010] Furthermore, the outer wall of the first limiting rod is rotatably connected to the second limiting rod, the outer wall of the second limiting rod is rotatably connected to one side of the outer wall of the first connecting block, and the outer wall of the second limiting rod is fixedly connected to the second connecting block.

[0011] Furthermore, a third limiting rod is slidably connected inside the second connecting block, and a grab hook is fixedly connected to an outer wall of the third limiting rod.

[0012] Furthermore, a third fixed block is fixedly connected to the lower surface of the turntable, a second fixed rod is slidably connected inside the third fixed block, the bottom of the outer wall of the second fixed rod is fixedly connected to a splint, the outer wall of the second fixed rod is sleeved with a spring, one end of the spring is fixedly connected to the bottom of the outer wall of the third fixed block, and the other end of the spring is fixedly connected to the upper surface of the outer wall of the splint.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the second slider is pushed upward by the hydraulic rod, the motor drives the threaded rod to rotate, the rotation of the threaded rod causes the second fixed block to move back and forth, the hydraulic rod pushes the first slider to slide upward, and the first slider drives the connecting rod to move up and down, so that the special sling can be placed in many aspects, which solves the problem that the prefabricated stairs cannot be placed in all aspects only by the driving component, improves the practicality of using the special sling, and enhances the comprehensiveness of the special sling.

[0015] 2. In the utility model, the first limit rod is driven to rotate by the rotation of the limit rod, the sliding of the first limit rod pushes the second limit rod to move, the movement of the second limit rod drives the second connecting block to swing back and forth, thereby driving the third limit rod to move, so that the special hoist can clamp the prefabricated stairs to fix them, which solves the problem that the prefabricated stairs cannot be fixed by only using the grab hook, improves the practicability of using the clamping structure, and enhances the stability of the clamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a special hanging device for prefabricated stairs proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of the support part of a prefabricated staircase special hanger proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the structure of the turntable part of a special hanger for prefabricated stairs.

[0019] Legend:

[0020] 1. Base; 2. Pillar; 3. First slider; 4. Connecting rod; 5. First fixed block; 6. Hydraulic rod; 7. Support plate; 8. Slide rail; 9. Second fixed block; 10. Threaded rod; 11. Second slider; 12. Motor; 13. Placement plate; 14. Turntable; 15. First fixed rod; 16. First connecting block; 17. Limit block; 18. First limit rod; 19. Second limit rod; 20. Second connecting block; 21. Third limit rod; 22. Grab hook; 23. Third fixed block; 24. Second fixed rod; 25. Spring; 26. Clamp; 27. Third slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 and Figure 2The utility model provides an embodiment: a special hanger for prefabricated stairs, including a left-right symmetrical base 1, a pillar 2 is fixedly connected to the upper surface of the base 1, a first slider 3 is slidably connected to the outer wall of the right pillar 2, a connecting rod 4 is fixedly connected inside the first slider 3, a first fixed block 5 is slidably connected to the outer wall of the connecting rod 4, a driving component is arranged on one side of the outer wall of the first fixed block 5, a second slider 11 is slidably connected to the outer wall of the left pillar 2, a threaded rod 10 is rotatably connected inside the second slider 11, a placement plate 13 is fixedly connected to one side of the outer wall of the second slider 11, a motor 12 is fixedly connected to the upper surface of the placement plate 13, an output end of the motor 12 is fixedly connected to one end of the threaded rod 10, and the threaded rod 10 is fixedly connected to the outer wall of the second slider 11. The outer wall of the rod 10 is threadedly connected to the second fixed block 9, the second slider 11 is fixedly connected to the first fixed rod 15, and the second fixed block 9 is internally slidably connected to the outer wall of the threaded rod 10; the driving assembly includes a slide rail 8 and a third slider 27, one end of the slide rail 8 is fixedly connected to one side of the outer wall of the first fixed block 5, and the other end of the slide rail 8 is fixedly connected to one side of the outer wall of the second fixed block 9, and the third slider 27 is internally slidably connected to the outer wall of the slide rail 8; the upper surface of the base 1 is fixedly connected to a hydraulic rod 6, the output end of the right hydraulic rod 6 is fixedly connected to a support plate 7, one side of the outer wall of the support plate 7 is fixedly connected to one side of the outer wall of the first slider 3, and the output end of the left hydraulic rod 6 is fixedly connected to the lower surface of the second slider 11.

[0023] Specifically, when placing, first start the hydraulic rod 6, and the output end of the hydraulic rod 6 pushes the first slider 3 and the second slider 11. The first slider 3 and the second slider 11 slide upward through the support 2, and the placement plate 13 also moves accordingly, and then start the motor 12, and the output end of the motor 12 on the upper surface of the placement plate 13 drives the threaded rod 10 to rotate. When the threaded rod 10 rotates, the second fixed block 9 rotates. When the second fixed block 9 moves, the driving component fixedly connected to one side of the outer wall of the second fixed block 9 moves, and then the third slider 27 slides on the outer wall of the slide rail 8, and the outer wall of the first fixed rod 15 is rotatably connected to the inside of the second fixed block 9, and the outer wall of the first fixed rod 15 is fixedly connected to the inside of the second slider 11 for fixing. In this way, the special sling can be placed in all directions, which improves the comprehensiveness and practicality of the special sling.

[0024] Reference Figure 3The lower surface of the third slider 27 is rotatably connected to the turntable 14, and the lower surface of the turntable 14 is fixedly connected to the first connecting block 16; one side of the outer wall of the first connecting block 16 is rotatably connected to the limiting block 17, and the first limiting rod 18 is slidably connected inside the limiting block 17; the outer wall of the first limiting rod 18 is rotatably connected to the second limiting rod 19, and the outer wall of the second limiting rod 19 is rotatably connected to one side of the outer wall of the first connecting block 16, and the outer wall of the second limiting rod 19 is fixedly connected to the second connecting block 20; the third limiting rod 21 is slidably connected inside the second connecting block 20, and the outer wall of the third limiting rod 21 is fixedly connected to the grab hook 22; the lower surface of the turntable 14 is fixedly connected to the third fixed block 23, the third fixed block 23 is slidably connected to the second fixing rod 24, the bottom of the outer wall of the second fixing rod 24 is fixedly connected to the splint 26, and the outer wall of the second fixing rod 24 is sleeved with a spring 25, one end of the spring 25 is fixedly connected to the bottom of the outer wall of the third fixing block 23, and the other end of the spring 25 is fixedly connected to the upper surface of the outer wall of the splint 26.

[0025] Specifically, when the third slider 27 moves, the turntable 14 rotatably connected to the lower surface of the third slider 27 rotates, the first connecting block 16 fixedly connected to the lower surface of the turntable 14 is connected to the limiting block 17, the limiting block 17 is internally slidably connected with the first limiting rod 18, and when the first limiting rod 18 slides, it pushes the rotatably connected second limiting rod 19, one end of the second limiting rod 19 is rotatably connected to the outer wall of the first connecting block 16, and the other end of the second limiting rod 19 is fixedly connected to one side of the outer wall of the second connecting block 20, and the second connecting block 20 is internally slidably connected with the first limiting rod 18. There are three limit rods 21, and the sliding of the third limit rod 21 drives the hook 22 to clamp the prefabricated stairs. The turntable 14 is first fixedly connected to the surface with a third fixed block 23, and the third fixed block 23 is slidably connected to the inside with a second fixed rod 24. The sliding of the second fixed rod 24 drives the clamping plate 26 to squeeze the prefabricated stairs, so that the prefabricated stairs have stability. One end of the spring 25 is fixedly connected to the lower surface of the third fixed block 23, and the other end of the spring 25 is fixed to the upper surface of the clamping plate 26. When the prefabricated stairs are of different sizes, the spring 25 automatically adjusts the size and squeezes.

[0026] Working principle: when using a prefabricated staircase special hoist, first start the hydraulic rod 6 and the motor 12, the output end of the hydraulic rod 6 pushes the support plate 7, the support plate 7 is fixedly connected to one side of the outer wall of the first slider 3, the first slider 3 slides on the outer wall of the pillar 2, the first slider 3 is fixedly connected to the outer wall of the connecting rod 4, so that the connecting rod 4 moves up and down, the outer wall of the connecting rod 4 is rotatably connected to the inside of the first fixed block 5, the upper surface of the base 1 is fixedly connected with a left-right symmetrical hydraulic rod 6, the output end of the hydraulic rod 6 is fixedly connected to the second slider 11, the output end of the hydraulic rod 6 pushes the second slider 11 to move up and down, the placement plate 13 is fixedly connected to one side of the outer wall of the second slider 11, the upper surface of the placement plate 13 is fixedly connected with a motor 12, the output end of the motor 12 drives the threaded rod 10 to rotate, the second fixed block 9 moves back and forth through the rotation of the threaded rod 10, the movement of the second fixed block 9 drives the slide rail 8 fixedly connected to one side of the outer wall to move, the third slider 27 moves on the outer wall of the slide rail 8, the turntable 14 The third slider 27 rotates on the lower surface, the limit block 17 rotates on one side of the outer wall of the first connecting block 16, the outer wall of the first limit rod 18 slides inside the limit block 17, the first limit rod 18 is rotatably connected to the second limit rod 19, one end of the second limit rod 19 is rotatably connected to one side of the outer wall of the first connecting block 16, the other end of the second limit rod 19 is fixedly connected to one side of the outer wall of the second connecting block 20, the outer wall of the third limit rod 21 is slidably connected to the inside of the second connecting block 20, the third limit rod 21 is fixedly connected with a grab hook 22, and then the grab hook 22 grabs the prefabricated stairs, the lower surface of the turntable 14 is fixedly connected to the third fixed block 23, the outer wall of the second fixed rod 24 is slidably connected to the inside of the third fixed block 23, the upper surface of the splint 26 is fixedly connected to one side of the outer wall of the second fixed rod 24, the splint 26 is squeezed on the prefabricated stairs through the connection of the spring 25, one end of the spring 25 is fixedly connected to the lower surface of the third fixed block 23, and the other end of the spring 25 is fixedly connected to the upper surface of the splint 26.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special hanging device for prefabricated stairs, comprising a bilaterally symmetrical base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a pillar (2); a first slider (3) is slidably connected to the outer wall of the right pillar (2); a connecting rod (4) is fixedly connected inside the first slider (3); a first fixed block (5) is slidably connected to the outer wall of the connecting rod (4); a driving assembly is arranged on one side of the outer wall of the first fixed block (5); a second slider (11) is slidably connected to the outer wall of the left pillar (2); a threaded rod (10) is rotatably connected inside the second slider (11); a placement plate (13) is fixedly connected to one side of the outer wall of the second slider (11); a motor (12) is fixedly connected to the upper surface of the placement plate (13); an output end of the motor (12) is fixedly connected to one end of the threaded rod (10); a second fixed block (9) is threadedly connected to the outer wall of the threaded rod (10); a first fixed rod (15) is fixedly connected inside the second slider (11); and the second fixed block (9) is slidably connected to the outer wall of the threaded rod (10).

2. A special hanging device for prefabricated stairs according to claim 1, characterized in that: The driving assembly comprises a slide rail (8) and a third slider (27); one end of the slide rail (8) is fixedly connected to one side of the outer wall of the first fixed block (5); the other end of the slide rail (8) is fixedly connected to one side of the outer wall of the second fixed block (9); and the third slider (27) is internally slidably connected to the outer wall of the slide rail (8).

3. The special hanging device for prefabricated stairs according to claim 1, characterized in that: A hydraulic rod (6) is fixedly connected to the upper surface of the base (1); the right output end of the hydraulic rod (6) is fixedly connected to a support plate (7); one side of the outer wall of the support plate (7) is fixedly connected to one side of the outer wall of the first sliding block (3); and the left output end of the hydraulic rod (6) is fixedly connected to the lower surface of the second sliding block (11).

4. The special hanging device for prefabricated stairs according to claim 2, characterized in that: The lower surface of the third sliding block (27) is rotatably connected to a rotating disk (14), and the lower surface of the rotating disk (14) is fixedly connected to a first connecting block (16).

5. The special hanging device for prefabricated stairs according to claim 4, characterized in that: One side of the outer wall of the first connection block (16) is rotatably connected to a limiting block (17), and a first limiting rod (18) is slidably connected inside the limiting block (17).

6. The special hanging device for prefabricated stairs according to claim 5, characterized in that: The outer wall of the first limiting rod (18) is rotatably connected to the second limiting rod (19), the outer wall of the second limiting rod (19) is rotatably connected to one side of the outer wall of the first connecting block (16), and the outer wall of the second limiting rod (19) is fixedly connected to the second connecting block (20).

7. The special hanging device for prefabricated stairs according to claim 6, characterized in that: A third limiting rod (21) is slidably connected inside the second connecting block (20), and a grab hook (22) is fixedly connected to the outer wall of the third limiting rod (21).

8. The special hanging device for prefabricated stairs according to claim 4, characterized in that: A third fixed block (23) is fixedly connected to the lower surface of the turntable (14), a second fixed rod (24) is slidably connected inside the third fixed block (23), the bottom of the outer wall of the second fixed rod (24) is fixedly connected to a clamping plate (26), the outer wall of the second fixed rod (24) is sleeved with a spring (25), one end of the spring (25) is fixedly connected to the bottom of the outer wall of the third fixed block (23), and the other end of the spring (25) is fixedly connected to the upper surface of the outer wall of the clamping plate (26).

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