A modular prefabricated steel structure staircase integral hoisting connector

Abstract

This utility model provides a modular prefabricated steel structure staircase hoisting connector, relating to the field of building hoisting technology. The modular prefabricated steel structure staircase hoisting connector includes a hollow load-bearing plate and two mounting panels. A positioning post is fixedly installed on the top of one mounting panel, and a positioning stud is fixedly installed on the top of the other mounting panel. An adjusting sleeve is threaded onto the positioning stud. Locking studs are fixedly installed on the tops of both the positioning post and the adjusting sleeve. Adjusting sliding arms are provided inside the hollow load-bearing plate. The sides of the two adjusting sliding arms that are furthest from each other extend outside the hollow load-bearing plate and slide slidably connect to it. Mounting plates are fixedly installed on the sides of the two adjusting sliding arms that are furthest from each other. This utility model facilitates the clamping and fixing of the staircase, and makes it easy to disassemble the components after hoisting.

Description

Technical Field

[0001] This utility model relates to the field of building hoisting technology, specifically a modular prefabricated steel structure staircase hoisting connector. Background Technology

[0002] With the rapid development of the construction industry, prefabricated buildings have gradually become an important development direction in the construction field due to their advantages such as high efficiency, environmental protection, and controllable quality. As a key component of prefabricated buildings, the ease of installation, stability, and safety of prefabricated steel structure staircases directly affect the quality and user experience of the entire building. At present, when installing steel structure staircases, they are generally first hoisted to the designated installation location using hoisting equipment. After being hoisted to the designated location, they can be fixed in that location for subsequent use.

[0003] However, during the hoisting process, the connecting parts between the steel structure staircase and the hoisting equipment are mostly steel cables and high-strength connecting ropes. The entire staircase is wrapped and knotted with steel cables or connecting ropes, and then lifted with hooks to achieve the hoisting purpose. Although this type of hoisting connector can carry out hoisting work, the whole operation process is relatively cumbersome. It is necessary to mark specific points before the wrapping and knotting work can be carried out. Although modular hoisting has emerged at this stage by connecting steel plates, such as using I-beams and steel plates to fix them to the staircase, and then hoisting them, there are still problems such as the difficulty in removing the welded parts after hoisting.

[0004] Therefore, it is necessary to provide a new modular prefabricated steel structure staircase hoisting connector to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a modular prefabricated steel structure staircase hoisting connector that can easily clamp and fix the staircase and facilitate the removal of the connector after hoisting.

[0006] To solve the above-mentioned technical problems, the modular prefabricated steel structure staircase hoisting connector provided by this utility model includes: a hollow bearing plate and two mounting panels. A positioning post is fixedly installed on the top of one mounting panel, and a positioning stud is fixedly installed on the top of the other mounting panel. An adjusting sleeve is threaded onto the positioning stud. Locking studs are fixedly installed on the tops of both the positioning post and the adjusting sleeve. Adjusting sliding arms are provided inside the hollow bearing plate. The two adjusting sliding arms extend to the outside of the hollow bearing plate and slide on the opposite side. Mounting plates are fixedly installed on the opposite side of both adjusting sliding arms. The tops of the positioning post and the adjusting sleeve contact the two mounting plates respectively. Waist holes are provided on both mounting plates. Hexagonal nuts are threaded onto both locking studs, and the bottoms of the two hexagonal nuts abut against the two mounting plates respectively. A step clamping mechanism is provided on the side of the two mounting panels that are close to each other to clamp and fix the beginning and end steps of the staircase.

[0007] Furthermore, in both of the stepped clamping mechanisms, each stepped clamping mechanism includes a concave support. The concave support is fixedly installed on the corresponding mounting panel by bolts. A bidirectional screw is rotatably installed inside the concave support. Two adjusting plates are threaded onto the bidirectional screw. An i-shaped bracket is fixedly installed on one side of each of the two adjusting plates. A lower support plate is fixedly installed on the bottom inner wall of each of the two i-shaped brackets. A clamping screw is threaded onto the top of each of the two i-shaped brackets. A lower pressure clamping plate is rotatably installed at the bottom end of each of the two clamping screws. Multiple balls are embedded in the top of each of the two lower support plates and the bottom of each of the two lower pressure clamping plates.

[0008] Furthermore, one end of the bidirectional screw extends to the outside of the concave support and is fixedly mounted with a rotating handle. A protruding plate is fixedly mounted on the outer wall of the concave support near the rotating handle. A set screw is threaded onto the protruding plate, and the end of the set screw abuts against the bidirectional screw.

[0009] Furthermore, multiple adjustment slots are provided on the top of both adjusting sliding arms. A mounting bracket is fixedly installed on the top of the hollow bearing plate. A fixing bolt is threaded on the top of the mounting bracket. The bottom end of the fixing bolt extends into the mounting bracket and is rotatably mounted with a linkage bar. The two sides of the linkage bar extend to the two sides of the mounting bracket and are slidably connected to the two sides of the mounting bracket. Positioning inserts are fixedly installed on the bottom of both mounting brackets. The bottom ends of the two positioning inserts are inserted into the corresponding adjustment slots. Two lifting rings are fixedly installed on the top of the mounting bracket.

[0010] Furthermore, hexagonal fixing sleeves are fixedly fitted on both the positioning post and the adjusting sleeve, and the tops of the two hexagonal fixing sleeves are in contact with the corresponding mounting pieces.

[0011] Furthermore, an internal hexagon head is fixedly installed at the top of the retaining bolt, and a spring washer is provided between the internal hexagon head and the mounting bracket. Both of the adjusting sliding arms are provided with scale lines.

[0012] Furthermore, two horizontal bars are fixedly installed inside the concave support. Both horizontal bars pass through two adjusting plates and are slidably connected to the two adjusting plates. Vertical bars are slidably installed on the top of both U-shaped brackets, and the bottom ends of both vertical bars are fixedly connected to the corresponding pressure plates.

[0013] Compared with related technologies, the modular prefabricated steel structure staircase hoisting connector provided by this utility model has the following advantages: I. This utility model eliminates the need for welding during the entire hoisting and fixing process. Fixing is achieved through the mechanical clamping of the ladder clamping mechanism, bolt connection, and the cooperation of adjustable components. After hoisting, dismantling can be completed simply by loosening the hexagonal nuts, fixing bolts, and other components in sequence, which greatly simplifies the operation process and reduces labor costs. Furthermore, the ladder clamping mechanism ensures the stability of the ladder during hoisting by clamping the lower support plate and the lower pressure plate and centering the position after adjustment by the bidirectional screw. Second, this utility model has multiple adjustable structures. The cooperation between the adjusting sliding arm and the adjusting groove can realize the flexible adjustment of the spacing between the installation pieces. The adjusting sleeve can accurately adapt to the height of the installation pieces. The design of the waist hole reduces the accuracy requirements of the spacing measurement. It can be adapted to prefabricated steel structure stairs of different sizes and specifications, and improves the versatility of construction. Attached Figure Description

[0014] Figure 1 A structural schematic diagram of the modular prefabricated steel structure staircase hoisting connector provided by this utility model; Figure 2 This is a frontal planar structural diagram of the present invention; Figure 3 This is an assembly diagram of the positioning pin and positioning stud in this utility model; Figure 4 This is an assembly diagram of the concave support and the square bracket in this utility model; Figure 5 This is a cross-sectional view of the adjusting sleeve in this utility model; Figure 6 This is an assembly diagram of the hollow bearing plate and mounting plate in this utility model.

[0015] The following are the labeling elements in the diagram: 1. Mounting panel; 2. Concave support; 3. Double-acting screw; 4. Adjusting plate; 5. C-shaped bracket; 6. Lower support plate; 7. Clamping screw; 8. Lower clamping plate; 9. Mounting piece; 10. Positioning post; 11. Positioning stud; 12. Adjusting sleeve; 13. Locking stud; 14. Hex nut; 15. Waist hole; 16. Hollow bearing plate; 17. Adjusting slide arm; 18. Adjusting groove; 19. Mounting bracket; 20. Fixing bolt; 21. Linkage bar; 22. Positioning insert; 23. Lifting ring. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1-6 .

[0018] The modular prefabricated steel structure staircase hoisting connector includes: a hollow load-bearing plate 16 and two mounting panels 1. A positioning post 10 is fixedly installed on the top of one mounting panel 1, and a positioning stud 11 is fixedly installed on the top of the other mounting panel 1. An adjusting sleeve 12 is threaded onto the positioning stud 11, and locking studs 13 are fixedly installed on the top of both the positioning post 10 and the adjusting sleeve 12. An adjusting sliding arm 17 is provided inside the hollow load-bearing plate 16. The two adjusting sliding arms 17 extend to the outside of the hollow load-bearing plate 16 on opposite sides and slide in connection with the hollow load-bearing plate 16. Furthermore, mounting plates 9 are fixedly installed on the opposite sides of the two adjusting sliding arms 17. The tops of the positioning post 10 and the adjusting sleeve 12 respectively contact the two mounting plates 9. Each mounting plate 9 has a slotted hole 15. The design of the slotted hole 15 allows for precise position adjustment during actual operation, providing a certain error range. Hexagonal nuts 14 are threaded onto each of the two locking studs 13. The bottoms of the two hexagonal nuts 14 respectively abut against the two mounting plates 9. Through the cooperation of the locking studs 13 and the hexagonal nuts 14, the two mounting plates 9 can be fixed securely. The staircase is fixed on the positioning post 10 and the adjusting sleeve 12. Each of the two mounting panels 1 has a step clamping mechanism on its adjacent side to clamp and fix the beginning and end steps of the staircase. Each step clamping mechanism includes a concave support 2, which is bolted to the corresponding mounting panel 1 for easy removal. A bidirectional screw 3 is rotatably installed inside the concave support 2, with two adjusting plates 4 threaded onto it. Two crossbars are fixedly installed inside the concave support 2, each crossbar passing through the two adjusting plates 4 and connecting to the two adjusting plates 4. The segments 4 are slidably connected to ensure stable linear movement of the adjusting segments 4. A U-shaped bracket 5 is fixedly installed on one side of each of the two adjusting segments 4. A lower support plate 6 is fixedly installed on the bottom inner wall of each of the two U-shaped brackets 5. A clamping screw 7 is threadedly installed on the top of each of the two U-shaped brackets 5. A lower pressure clamping plate 8 is rotatably installed on the bottom of each of the two clamping screws 7. Multiple balls are embedded in the top of each of the two lower support plates 6 and the bottom of each of the two lower pressure clamping plates 8. In addition, a vertical bar is slidably installed on the top of each of the two U-shaped brackets 5. The bottom of each of the two vertical bars is fixedly connected to the corresponding lower pressure clamping plate 8.

[0019] In this embodiment, in order to prevent the bidirectional screw 3 from rotating, a handle is fixedly installed on one end of the bidirectional screw 3 extending to the outside of the concave support 2. A convex plate is fixedly installed on the outer wall of the concave support 2 near the handle. A set screw is threaded on the convex plate. The end of the set screw abuts against the bidirectional screw 3. The abutting force between the two can provide a locking force for the bidirectional screw 3.

[0020] In this embodiment, after adjusting the distance between the two mounting pieces 9, multiple adjustment slots 18 are provided on the top of each of the two adjusting sliding arms 17 to ensure reliable positioning. A mounting bracket 19 is fixedly installed on the top of the hollow bearing plate 16. A retaining bolt 20 is threaded onto the top of the mounting bracket 19, and the bottom end of the retaining bolt 20 extends into the mounting bracket 19 and is rotatably mounted with a linkage bar 21. Both sides of the linkage bar 21 extend to both sides of the mounting bracket 19 and slide to connect with both sides of the mounting bracket 19, forming a sliding limit effect. As a result, positioning inserts 22 are fixedly installed at the bottom of both mounting brackets 19, and the bottom ends of the two positioning inserts 22 are inserted into the corresponding adjustment slots 18. Two lifting rings 23 are fixedly installed at the top of the mounting brackets 19. Furthermore, an internal hexagon head is fixedly installed at the top of the retaining bolt 20. A spring washer is provided between the internal hexagon head and the mounting bracket 19. The deformation generated by the spring washer can increase the pre-tightening force of the retaining bolt 20, thereby ensuring the retaining effect. In addition, scale lines are provided on both adjusting slide arms 17 to facilitate precise adjustment by the operator.

[0021] In this embodiment, in order to facilitate the disassembly and assembly of the hexagonal nut 14, hexagonal fixing sleeves are fixedly fitted on both the positioning post 10 and the adjusting sleeve 12, and the tops of the two hexagonal fixing sleeves are in contact with the corresponding mounting pieces 9.

[0022] The working principle of the modular prefabricated steel structure staircase hoisting connector provided by this utility model is as follows: In the initial state, the concave support 2 is separated from the mounting panel 1, the positioning post 10 is separated from the corresponding mounting piece 9, and the adjusting sleeve 12 is separated from the corresponding mounting piece 9; When hoisting a prefabricated steel structure staircase, take out one of the step clamping mechanisms, starting from the first step. Insert the two lower support plates 6 in the step clamping mechanism under the first step, and make one side of the step fit against the inner wall of the two C-shaped brackets 5. Then rotate the corresponding two clamping screws 7, and the two lower clamping plates 8 descend, finally clamping the first step. Then, through the action of the ball bearings, first rotate the corresponding double-direction screw 3, and the two adjusting plates 4 move away from each other until the two C-shaped brackets 5 on the opposite sides fit against the mounting back plates on both sides of the staircase. Then stop rotating the double-direction screw 3. Then tighten the corresponding set screw to make it abut against the double-direction screw 3. At this time, the concave support 2 and the staircase are aligned in the center, and the clamping and fixing of the first step is completed. Then take out another step clamping mechanism and clamp and fix the end step in the same way as above. Then, fix the concave support 2 corresponding to the beginning step to the mounting panel 1 connected with the positioning stud 11. Then fix the concave support 2 corresponding to the end step to the mounting panel 1 connected with the positioning post 10. After connecting, measure the distance between the positioning post 10 and the adjusting sleeve 12. The design of the waist hole 15 can make the distance between the two not too precise. Next, adjust the spacing of the two mounting pieces 9 according to the measured spacing. During adjustment, first reverse the retaining bolt 20 to bring the two positioning pieces 22 out of their corresponding adjustment slots 18. Then, move the two mounting pieces 9 and observe the scale lines on them. When they reach the designated scale line position, retighten the retaining bolt 20 to insert the two positioning pieces 22 into their corresponding adjustment slots 18. Then, first align the corresponding mounting piece 9 with the top of the positioning post 10, and ensure that the locking stud 13 on it passes through the corresponding slot 15. Then… Tighten the hexagonal nut 14 slightly, then adjust the height of the adjusting sleeve 12 according to the height of the mounting piece 9. To adjust, simply rotate the adjusting sleeve 12 until its top aligns with the other mounting piece 9. At this point, both locking studs 13 will pass through the corresponding waist holes 15. Tighten the two hexagonal nuts 14 to complete the clamping and fixing of the staircase. Then, using external hoisting equipment and with the help of the lifting ring 23, the entire staircase can be hoisted and finally transported to the designated location for installation.

[0023] Compared with related technologies, the modular prefabricated steel structure staircase hoisting connector provided by this utility model has the following advantages: I. This utility model eliminates the need for welding during the entire hoisting and fixing process. Fixing is achieved through the mechanical clamping of the ladder clamping mechanism, bolt connection, and the cooperation of adjustable components. After hoisting, dismantling can be completed simply by loosening the hexagonal nut 14, the fixing bolt 20, and other components in sequence, which greatly simplifies the operation process and reduces labor costs. Furthermore, the ladder clamping mechanism ensures the stability of the ladder during hoisting by clamping the lower support plate 6 and the lower pressure clamping plate 8 and centering the position after adjustment by the bidirectional screw 3. Second, this utility model has multiple adjustable structures. The cooperation between the adjusting sliding arm 17 and the adjusting groove 18 can realize the flexible adjustment of the spacing of the mounting pieces 9. The adjusting sleeve 12 can accurately adapt to the height of the mounting pieces 9. The design of the waist hole 15 reduces the accuracy requirements of the spacing measurement. It can be adapted to prefabricated steel structure stairs of different sizes and specifications, and improves the versatility of construction.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A modular prefabricated steel structure staircase integral hoisting connector, comprising a hollow load-bearing plate and two mounting panels, characterized in that, A positioning post is fixedly installed on the top of one mounting panel, and a positioning stud is fixedly installed on the top of the other mounting panel. An adjusting sleeve is threaded onto the positioning stud. A locking stud is fixedly installed on the top of both the positioning post and the adjusting sleeve. An adjusting sliding arm is provided inside the hollow support plate. The two adjusting sliding arms extend to the outside of the hollow support plate and slides through it. An mounting piece is fixedly installed on the two adjusting sliding arms. The tops of the positioning post and the adjusting sleeve contact the two mounting pieces respectively. A waist hole is provided on each of the two mounting pieces. A hexagonal nut is threaded onto each of the two locking studs. The bottoms of the two hexagonal nuts abut against the two mounting pieces respectively. Both mounting panels are provided with a step clamping mechanism on the side that is close to each other, so as to clamp and fix the beginning and end steps of the staircase.

2. The modular prefabricated steel structure staircase integral hoisting connector according to claim 1, characterized in that, In both of the aforementioned stepped clamping mechanisms, each stepped clamping mechanism includes a concave support. The concave support is fixedly installed on the corresponding mounting panel by bolts. A bidirectional screw is rotatably installed inside the concave support. Two adjusting plates are threaded onto the bidirectional screw. An i-shaped bracket is fixedly installed on one side of each of the two adjusting plates. A lower support plate is fixedly installed on the bottom inner wall of each of the two i-shaped brackets. A clamping screw is threaded onto the top of each of the two i-shaped brackets. A lower pressure clamping plate is rotatably installed at the bottom end of each of the two clamping screws. Multiple balls are embedded in the top of each of the two lower support plates and the bottom of each of the two lower pressure clamping plates.

3. The modular prefabricated steel structure staircase integral hoisting connector according to claim 2, characterized in that, One end of the bidirectional screw extends to the outside of the concave support and is fixedly mounted with a rotating handle. A protruding plate is fixedly mounted on the outer wall of the concave support near the rotating handle. A set screw is threaded onto the protruding plate, and the end of the set screw abuts against the bidirectional screw.

4. The modular prefabricated steel structure staircase integral hoisting connector according to claim 1, characterized in that, Multiple adjustment slots are provided on the top of both adjusting sliding arms. A mounting bracket is fixedly installed on the top of the hollow bearing plate. A fixing bolt is threaded on the top of the mounting bracket. The bottom end of the fixing bolt extends into the mounting bracket and is rotatably mounted with a linkage bar. The two sides of the linkage bar extend to the two sides of the mounting bracket and are slidably connected to the two sides of the mounting bracket. Positioning inserts are fixedly installed on the bottom of both mounting brackets. The bottom ends of the two positioning inserts are inserted into the corresponding adjustment slots. Two lifting rings are fixedly installed on the top of the mounting bracket.

5. The modular prefabricated steel structure staircase integral hoisting connector according to claim 1, characterized in that, Both the positioning post and the adjusting sleeve are fixedly fitted with hexagonal fixing sleeves, and the tops of the two hexagonal fixing sleeves are in contact with the corresponding mounting pieces.

6. The modular prefabricated steel structure staircase integral hoisting connector according to claim 4, characterized in that, The top of the retaining bolt is fixedly installed with an internal hexagon head, and a spring washer is provided between the internal hexagon head and the mounting bracket. Both of the adjusting slide arms are provided with scale lines.

7. The modular prefabricated steel structure staircase integral hoisting connector according to claim 2, characterized in that, Two horizontal bars are fixedly installed inside the concave support. Both horizontal bars pass through two adjusting plates and are slidably connected to the two adjusting plates. Vertical bars are slidably installed on the top of both U-shaped brackets. The bottom ends of both vertical bars are fixedly connected to the corresponding pressure plates.

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