Lifting device for I-shaped steel

Abstract

The utility model relates to the field of bridge engineering and steel structure hoisting, and discloses an I-shaped steel hoisting device which comprises an I-shaped steel body, a fixing plate is arranged on the outer wall of the I-shaped steel body, a notch is formed in the surface of the fixing plate in a penetrating mode, the top of the fixing plate is fixedly connected with a hoisting plate, and the top of the hoisting plate is fixedly connected with a lifting rod. A hoisting hole is formed in the surface of the hoisting plate in a penetrating mode, an adjusting groove is formed in the bottom of the fixing plate, a two-way lead screw is rotationally connected to the inner wall of the adjusting groove, a shifting ring is fixedly connected to the center of the two-way lead screw, and a supporting frame is in threaded connection to the outer wall of the two-way lead screw. According to the I-shaped steel hoisting device, by arranging the fixing plates, the notches, the hoisting plates, the hoisting holes and other structures, I-shaped steel can be conveniently hoisted, adjustment and limiting can be conducted according to the width of a web of the I-shaped steel, meanwhile, shaking of the I-shaped steel in the hoisting process is effectively limited, hoisting stability is improved, installation errors are reduced, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the fields of bridge engineering and steel structure hoisting, in particular to a hoisting device for I-shaped steel. Background Technique

[0002] I-shaped steel is a common building material, named because its cross-sectional shape is similar to the Chinese character "工". It consists of three parts, two parallel flanges, the upper flange and the lower flange, and a web connecting these two flanges. During the bridge construction process, large-area construction platforms need to be erected, such as the caisson sinking construction platform, the caisson bottom sealing construction platform, etc. As a supporting structure, I-shaped steel needs to be frequently hoisted to the designated position.

[0003] After retrieval, the Chinese patent publication number: CN208037849U discloses a hoisting tool for I-shaped steel, which is provided at both ends of the I-shaped steel to be hoisted. First, the web and flange of the I-shaped steel need to be respectively clamped in the web slot and flange slot, and then the hoisting machine is connected through the connecting structure, so that the I-shaped steel can be lifted to the construction position. The hoisting process is convenient to operate and improves the construction safety.

[0004] In the above technical solution, after the device is clamped in the web slot and flange slot, the hoisting machine is connected for hoisting. However, when the hoisting device is fixed to the web of the I-shaped steel, it cannot adapt to the web sizes of different widths. The lack of limit will cause the I-shaped steel to shake during the hoisting process. The direct friction force caused by directly clamping the outer wall of the web will cause wear during long-term use. Therefore, a hoisting device for I-shaped steel is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a hoisting device for I-shaped steel, aiming to improve the problems that the hoisting device for I-shaped steel in the prior art cannot adapt to the webs of I-shaped steel with different sizes for limiting, resulting in shaking during the hoisting process, and at the same time, the friction force generated during installation will cause wear and reduce the service life of the hoisting device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A hoisting device for I-shaped steel includes an I-shaped steel body. A fixing plate is arranged on the outer wall of the I-shaped steel body. A slot is penetrated through the surface of the fixing plate. A hoisting plate is fixedly connected to the top of the fixing plate. A hoisting hole is penetrated through the surface of the hoisting plate. An adjusting groove is opened at the bottom of the fixing plate. A bidirectional screw rod is rotatably connected to the inner wall of the adjusting groove. A dial ring is fixedly connected to the center of the bidirectional screw rod. A support frame is threadedly connected to the outer wall of the bidirectional screw rod. An adjusting plate is fixedly connected to the outer wall of the support frame. A telescopic guiding component is arranged on the surface of the adjusting plate.

[0007] As a further description of the above technical solution:

[0008] The adjusting plate has an inclined surface on the outer wall near the hoisting hole.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the support frame is adapted to the inner wall of the adjustment groove, and the adjustment plate is located inside the groove.

[0011] As a further description of the above technical solution:

[0012] The telescopic guide assembly includes a mounting groove, a telescopic rod is fixedly connected to the inner wall of the mounting groove, a spring is sleeved on the outer wall of the telescopic rod, a mounting frame is hinged to the movable end of the telescopic rod, a rotating shaft is fixedly connected to the outer wall of the mounting frame, and a guide wheel is rotatably connected to the outer wall of the rotating shaft.

[0013] As a further description of the above technical solution:

[0014] The mounting groove is formed on the outer wall of the adjusting plate, and the end of the spring is fixedly connected to the inner wall of the mounting groove.

[0015] As a further description of the above technical solution:

[0016] The edges of the hoisting holes are rounded.

[0017] As a further description of the above technical solution:

[0018] A limit ring is provided inside the hoisting hole, and an adjusting screw is rotatably connected to the outer wall of the limit ring. A sliding rod is fixedly connected to the outer wall of the limit ring.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the adjusting screw is threadedly connected to the inner wall of the lifting plate, and the sliding rod passes through the lifting plate, with the outer wall of the sliding rod slidably connected to the inner wall of the lifting plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by combining structures such as a fixing plate, slot, lifting plate, lifting hole, adjusting groove, two-way screw rod, support frame, adjusting plate and telescopic guide assembly, it is convenient to lift I-beams and can adjust the limit according to the web width of the I-beam. At the same time, it effectively limits the swaying of the I-beam during the lifting process, improves the stability of the lifting, thereby reducing installation errors and improving construction efficiency.

[0023] 2. In this utility model, by setting a limit ring, adjusting screw and slide rod and other structures, the diameter of the lifting hole can be adjusted to adapt to hooks of different sizes, and at the same time further reduce the shaking during the lifting process. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the main structure of a hoisting device for I-beam steel proposed in this utility model;

[0025] Figure 2 This is a side view of the main structure of a hoisting device for I-beam steel proposed in this utility model;

[0026] Figure 3 A bottom view of the structure of the I-beam steel body removed from the hoisting device for I-beam steel proposed in this utility model;

[0027] Figure 4 This utility model proposes a hoisting device for I-beam steel. Figure 3 Enlarged view of region A in the middle;

[0028] Figure 5 This is a side view of the structure of the I-beam steel body removed from the hoisting device for I-beam steel proposed in this utility model.

[0029] Legend:

[0030] 1. I-beam body; 2. Fixing plate; 3. Groove; 4. Lifting plate; 5. Lifting hole; 6. Adjusting groove; 7. Two-way lead screw; 8. Dial ring; 9. Support frame; 10. Adjusting plate; 11. Inclined surface; 12. Mounting groove; 13. Telescopic rod; 14. Spring; 15. Mounting bracket; 16. Guide wheel; 17. Rotating shaft; 18. Rounded corner; 19. Limiting ring; 20. Adjusting lead screw; 21. Slide rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of a hoisting device for I-beam steel, comprising an I-beam steel body 1, which is composed of upper and lower steel plates and a web plate. A fixing plate 2 is provided on the outer wall of the I-beam steel body 1, and a slot 3 is formed through the surface of the fixing plate 2, allowing the web plate to be inserted. The fixing plate 2 is connected to the hook of a hoisting machine through a hoisting hole 5. A fixing plate 2 and a hoisting plate 4 are provided on both sides of each I-beam steel body 1 to facilitate hoisting. A hoisting plate 4 is fixedly connected to the top of the fixing plate 2, and a hoisting hole 5 is formed through the surface of the hoisting plate 4. An adjustment groove is formed at the bottom of the fixing plate 2. 6. A two-way lead screw 7 is rotatably connected to the inner wall of the adjusting groove 6. A dial ring 8 is fixedly connected to the center of the two-way lead screw 7. A support frame 9 is threadedly connected to the outer wall of the two-way lead screw 7. The outer wall of the support frame 9 is adapted to the inner wall of the adjusting groove 6. An adjusting plate 10 is fixedly connected to the outer wall of the support frame 9. The adjusting plate 10 is located inside the groove 3. Two sets of adjusting plates 10 are set inside each set of grooves 3 and are mirrored about the central axis of the groove 3. An inclined surface 11 is opened on the outer wall of the adjusting plate 10 near the lifting hole 5. The inclined surface 11 can provide a transition during the insertion of the web plate into the groove 3, so that the adjusting plate 10 can quickly fit the outer wall of the web plate.

[0033] Reference Figures 3-5 The surface of the adjusting plate 10 is provided with a telescopic guide assembly, which includes a mounting groove 12. The mounting groove 12 is opened on the outer wall of the adjusting plate 10. A telescopic rod 13 is fixedly connected to the inner wall of the mounting groove 12. A spring 14 is sleeved on the outer wall of the telescopic rod 13. The end of the spring 14 is fixedly connected to the inner wall of the mounting groove 12. A mounting bracket 15 is hinged to the movable end of the telescopic rod 13. A rotating shaft 17 is fixedly connected to the outer wall of the mounting bracket 15. A guide wheel 16 is rotatably connected to the outer wall of the rotating shaft 17. The telescopic restoring force of the telescopic rod 13 and the spring 14 provides a certain buffer when the guide wheel 16 contacts the web plate. At the same time, the guide wheel 16 can rotate to guide when the slot 3 is inserted into the web plate.

[0034] Reference Figure 5 The lifting hole 5 has rounded corners 18 at its edges, and both sides of the lifting hole 5 have rounded corners 18, so that the hook of the lifting machine can quickly enter the lifting hole 5. A limit ring 19 is provided inside the lifting hole 5. An adjusting screw 20 is rotatably connected to the outer wall of the limit ring 19. The outer wall of the adjusting screw 20 is threadedly connected to the inner wall of the lifting plate 4. A sliding rod 21 is fixedly connected to the outer wall of the limit ring 19. The sliding rod 21 passes through the lifting plate 4. The outer wall of the sliding rod 21 is slidably connected to the inner wall of the lifting plate 4. By rotating the adjusting screw 20 in conjunction with the limiting of the sliding rod 21, the limit ring 19 can be moved inside the lifting hole 5, thereby adjusting the diameter of the lifting hole 5 to accommodate hooks of different sizes.

[0035] Working principle: Based on the size of the web, the lever 8 is manually moved forward or backward. The lever 8 drives the bidirectional lead screw 7 to rotate, thereby causing the two sets of adjustment plates 10 to move closer or further apart via the two sets of support frames 9, until the distance between the two sets of adjustment plates 10 inside the slot 3 is equal to the width of the web. Then, the slot 3 is inserted into the web. At the moment of insertion, the inclined surface 11 allows the adjustment plate 10 to naturally transition to the surface of the web. Simultaneously, during the advancement of the fixed plate 2, the guide wheel 16 contacts the web and rolls, causing the telescopic rod 13 and spring 14 to extend and retract, ensuring... The guide wheel 16 and the web plate are tightened together. The guide wheel 16 converts the direct friction of the contact between the adjusting plate 10 and the web plate into rolling friction, reducing the friction between the hoisting device and the web plate, thereby avoiding wear caused by long-term contact. When the two sets of fixing plates 2 are fixed on both sides of the I-beam body 1, the adjusting screw 20 can be rotated manually in the forward or reverse direction, which will drive the limiting ring 19 to adjust the distance from the center point inside the hoisting hole 5. This allows the hoisting hole 5 to adapt to the size of different hoisting machine hooks and improve the stability of hoisting the I-beam body 1.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hoisting device for I-shaped steel, comprising an I-shaped steel body (1), characterized in that: The outer wall of the I-beam body (1) is provided with a fixing plate (2), the surface of the fixing plate (2) is provided with a through slot (3), the top of the fixing plate (2) is fixedly connected with a lifting plate (4), the surface of the lifting plate (4) is provided with a lifting hole (5), the bottom of the fixing plate (2) is provided with an adjustment groove (6), the inner wall of the adjustment groove (6) is rotatably connected with a double-acting screw (7), the center of the double-acting screw (7) is fixedly connected with a dial ring (8), the outer wall of the double-acting screw (7) is threadedly connected with a support frame (9), the outer wall of the support frame (9) is fixedly connected with an adjustment plate (10), and the surface of the adjustment plate (10) is provided with a telescopic guide assembly.

2. The hoisting device for I-beam steel according to claim 1, characterized in that: The adjusting plate (10) has an inclined surface (11) on the outer wall of the side near the hoisting hole (5).

3. The hoisting device for I-beam steel according to claim 1, characterized in that: The outer wall of the support frame (9) is adapted to the inner wall of the adjustment groove (6), and the adjustment plate (10) is located inside the groove (3).

4. The hoisting device for I-beam steel according to claim 1, characterized in that: The telescopic guide assembly includes a mounting groove (12), a telescopic rod (13) is fixedly connected to the inner wall of the mounting groove (12), a spring (14) is sleeved on the outer wall of the telescopic rod (13), a mounting frame (15) is hinged to the movable end of the telescopic rod (13), a rotating shaft (17) is fixedly connected to the outer wall of the mounting frame (15), and a guide wheel (16) is rotatably connected to the outer wall of the rotating shaft (17).

5. The hoisting device for I-beam steel according to claim 4, characterized in that: The mounting groove (12) is formed on the outer wall of the adjusting plate (10), and the end of the spring (14) is fixedly connected to the inner wall of the mounting groove (12).

6. The hoisting device for I-beam steel according to claim 1, characterized in that: The edge of the hoisting hole (5) is provided with a rounded corner (18).

7. The hoisting device for I-beam steel according to claim 1, characterized in that: The lifting hole (5) is provided with a limiting ring (19) inside. The outer wall of the limiting ring (19) is rotatably connected to an adjusting screw (20), and the outer wall of the limiting ring (19) is fixedly connected to a sliding rod (21).

8. The hoisting device for I-beam steel according to claim 7, characterized in that: The outer wall of the adjusting screw (20) is threadedly connected to the inner wall of the hoisting plate (4), and the slide rod (21) passes through the hoisting plate (4). The outer wall of the slide rod (21) is slidably connected to the inner wall of the hoisting plate (4).

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