Safety clamp for steel structure hoisting

Abstract

The utility model relates to the technical field of hoisting clamps, in particular to a safety clamp for hoisting a steel structure, which comprises an upper clamping plate, limiting plates are symmetrically and fixedly connected to two sides of the lower end surface of the upper clamping plate, and a plurality of groups of first telescopic holes are symmetrically formed in the outer sides of the lower ends of the limiting plates to the outer sides of the upper ends of the upper clamping plate; threaded rods are movably connected to the interiors of the first telescopic holes, the threaded rods penetrate from the upper ends of the first telescopic holes to the tail ends of the lower ends of the first telescopic holes to be fixedly connected with lower clamping plates correspondingly, the upper ends of the threaded rods are sleeved, meshed and movably connected with nuts, and multiple sets of second telescopic holes are formed in the two sides of the inner sides of the upper clamping plates and the limiting plates in parallel; a limiting rod is fixedly connected to the center of the lower clamping plate; the safety clamp for steel structure hoisting has the advantages that the nuts are matched with the threaded rods to adjust the lower clamping plates to clamp and fix special-shaped steel structure parts, the limiting rods are matched with the second telescopic holes to limit the lower clamping plates, rotation is prevented, and clamping is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting clamps, in particular to a safety clamp for hoisting steel structures. Background Art

[0002] Steel structure refers to a structural system that uses steel as the main structural material. It is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. In steel structure hoisting operations, falling from heights is one of the main sources of danger. In order to reduce this risk, effective safety protection measures must be taken. Among them, safety clamps are important connection and fixing tools, and their use is particularly important. The existing safety clamps are enclosing clamps that can be adjusted up and down to comprehensively fix steel structural members. However, there is a kind of steel structure special-shaped parts. Steel structure special-shaped parts are complex and special-shaped cross-section steel structural parts, and are different from ordinary steel structural parts, such as channel steel, I-beam, H-beam, steel sheet piles and various special-shaped steel structures. Their irregular shapes make it difficult for traditional enclosing clamps to clamp, and the uneven contact surface will lead to unstable hoisting.

[0003] Therefore, it is necessary to provide a new safety clamp for steel structure hoisting to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a safety clamp for steel structure hoisting.

[0005] The safety clamp for steel structure hoisting provided by the utility model comprises:

[0006] An upper clamping plate, with limit plates symmetrically fixedly connected to the lower end surface of the upper clamping plate on both sides;

[0007] The lower clamping plate and the outer side of the lower end of the limit plate to the outer side of the upper end of the upper clamping plate are symmetrically provided with multiple groups of first telescopic holes, the inside of the first telescopic holes is movably connected with threaded rods, the threaded rods pass through the upper ends of the first telescopic holes to the lower ends and are respectively fixedly connected to the lower clamping plates, and the upper ends of the threaded rods are sleeved with nuts that are engaged and movably connected;

[0008] The limiting rod, the upper clamping plate and the inner sides of the limiting plate are provided with multiple sets of second telescopic holes in parallel, the center of the lower clamping plate is fixedly connected to the limiting rod, and the upper end of the limiting rod passes through the second telescopic hole to the outer side of the upper clamping plate.

[0009] Preferably, the upper end of the limiting rod is fixedly connected to a limiting plate, and the limiting plate can limit the limiting rod to prevent it from falling off.

[0010] Preferably, four diagonal parts of the upper end surface of the upper clamping plate are fixedly connected with lifting rings, and cables can be connected through the provided lifting rings.

[0011] Preferably, an anti-skid pad is fixedly connected to the inner edge of the upper end surface of the lower clamping plate, and the lower end of the steel structure can be fixed by the anti-skid pad.

[0012] Preferably, a clamping pad is fixedly connected to the center of the lower end surface of the upper clamping plate, and the upper end of the steel structure can be fixed by the provided clamping pad.

[0013] Preferably, a plurality of sets of protective feet are fixedly connected to the edges on both sides of the lower end of the lower clamping plate, and the provided protective feet can prevent the lower end of the lower clamping plate from contacting the ground and causing wear.

[0014] Preferably, the lower clamping plates can be moved up and down in a staggered manner, and the lower clamping plates that can be moved up and down in a staggered manner can adapt to steel structural members of different shapes.

[0015] Preferably, the lengths of the limiting rod and the threaded rod are consistent, and the length of the lower clamping plate can be synchronously adjusted by the limiting rod and the threaded rod having the same length.

[0016] Compared with the related art, the safety clamp for steel structure hoisting provided by the utility model has the following beneficial effects:

[0017] The utility model provides a safety clamp for hoisting a steel structure;

[0018] 1. The utility model can clamp and fix the steel structure by the lower clamping plate provided, and can manually rotate the nuts of different groups through tools to drive the meshing threaded rods to rotate and telescope up and down, and the threaded rods penetrate the first telescopic holes to drive the lower clamping plates of different groups fixedly connected at the lower ends of the threaded rods to move up and down, so as to clamp and fix the special-shaped steel structure and facilitate hoisting;

[0019] 2. The utility model can limit the lower clamping plate to prevent rotation by means of a limit rod. When the meshing threaded rod is driven to rotate and extend up and down by rotating the nut, the limit rod can pass through the second telescopic hole to limit the lower clamping plate to prevent rotation when the lower clamping plate moves up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the safety clamp for steel structure hoisting provided by the utility model;

[0021] Figure 2 for Figure 1 The schematic diagram of the top view of the safety clamp for hoisting steel structures shown in FIG.

[0022] Figure 3 for Figure 1 The front cross-sectional structural diagram of the safety clamp for lifting steel structures is shown.

[0023] Numbers in the figure: 1. Upper clamping plate; 2. Limiting plate; 3. Lower clamping plate; 4. First telescopic hole; 5. Second telescopic hole; 6. Lifting ring; 7. Limiting rod; 8. Limiting plate; 9. Threaded rod; 10. Nut; 11. Anti-slip pad; 12. Protective foot; 13. Clamping pad. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 3 The utility model provides a safety clamp for hoisting a steel structure, and the safety clamp for hoisting a steel structure includes:

[0027] An upper clamping plate 1, with two sides of the lower end surface of the upper clamping plate 1 symmetrically fixedly connected with a limit plate 2;

[0028] The lower clamping plate 3 and the outer side of the lower end of the limit plate 2 to the outer side of the upper end of the upper clamping plate 1 are symmetrically provided with a plurality of first telescopic holes 4, the inside of the first telescopic holes 4 is movably connected with a threaded rod 9, the threaded rod 9 passes through the upper end of the first telescopic hole 4 to the lower end and is respectively fixedly connected to the lower clamping plate 3, and the upper end of the threaded rod 9 is sleeved with a nut 10 that is engaged and movably connected;

[0029] The limiting rod 7, the upper clamping plate 1 and the limiting plate 2 have multiple sets of second telescopic holes 5 opened in parallel on both sides of the inner side, the limiting rod 7 is fixedly connected to the center of the lower clamping plate 3, and the upper end of the limiting rod 7 passes through the second telescopic hole 5 to the upper outer side of the upper clamping plate 1.

[0030] It should be noted that: different groups of nuts 10 can be manually rotated through tools to drive the meshing threaded rod 9 to rotate and extend up and down, and the threaded rod 9 can pass through the first telescopic hole to drive the lower clamping plates 3 of different groups fixedly connected at the lower end of the threaded rod 9 to move up and down, so as to clamp and fix the special-shaped steel structural parts for convenient lifting. When the meshing threaded rod 9 is driven to rotate and extend up and down by rotating the nut 9, the lower clamping plate 3 can be limited by the limit rod 7 passing through the second telescopic hole 5 to prevent the lower clamping plate 3 from rotating when it moves up and down.

[0031] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 The upper end of the limiting rod 7 is fixedly connected to a limiting plate 8, and the limiting plate 8 can limit the limiting rod 7 to prevent it from falling off.

[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 The upper end surface of the upper clamping plate 1 is fixedly connected with four diagonals with lifting rings 6, and cables can be connected through the provided lifting rings 6.

[0033] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 An anti-skid pad 11 is fixedly connected to the inner edge of the upper end surface of the lower clamping plate 3, and the lower end of the steel structure can be fixed by the anti-skid pad 11.

[0034] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 A clamping pad 13 is fixedly connected to the center of the lower end surface of the upper clamping plate 1, and the upper end of the steel structure can be fixed by the provided clamping pad 13.

[0035] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 A plurality of sets of protective feet 12 are fixedly connected to the edges on both sides of the lower end of the lower splint 3. The protective feet 12 can prevent the lower end of the lower splint 3 from contacting the ground and causing wear.

[0036] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 The lower clamping plates 3 can be moved up and down alternately, and the lower clamping plates 3 that can be moved up and down alternately can adapt to steel structures of different shapes.

[0037] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 The lengths of the limiting rod 7 and the threaded rod 9 are consistent, and the length of the lower clamping plate can be adjusted synchronously through the limiting rod 7 and the threaded rod 9 of the same length.

[0038] The working principle of the safety clamp for steel structure hoisting provided by the utility model is as follows:

[0039] When in use, you can first manually use tools to rotate different groups of nuts 10 to drive the meshing threaded rod 9 to rotate and extend up and down, and then drive the threaded rod 9 to pass through the first telescopic hole to drive the lower clamps 3 of different groups fixedly connected to the lower end of the threaded rod 9 to clamp and move up and down, so as to achieve the clamping and fixation of special-shaped steel structures for convenient lifting. When the meshing threaded rod 9 is driven to rotate and extend up and down by rotating the nut 9, the lower clamp 3 can be limited by the limit rod 7 passing through the second telescopic hole 5 to prevent the lower clamp 3 from rotating when it moves up and down, and then the lifting cable is connected through the lifting ring 6 to realize the lifting of the clamp.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safety clamp for steel structure hoisting, characterized in that: include: An upper clamping plate (1), wherein both sides of the lower end surface of the upper clamping plate (1) are symmetrically fixedly connected to limit plates (2); A lower clamping plate (3), a plurality of first telescopic holes (4) are symmetrically provided from the outer side of the lower end of the limit plate (2) to the outer side of the upper end of the upper clamping plate (1), a threaded rod (9) is movably connected inside the first telescopic hole (4), the threaded rod (9) passes through from the upper end of the first telescopic hole (4) to the lower end thereof and is respectively fixedly connected to the lower clamping plate (3), and a nut (10) is sleeved and movably connected to the upper end of the threaded rod (9); A limiting rod (7), wherein a plurality of groups of second telescopic holes (5) are arranged in parallel on both sides of the inner sides of the upper clamping plate (1) and the limiting plate (2), the limiting rod (7) is fixedly connected to the center of the lower clamping plate (3), and the upper end of the limiting rod (7) passes through the second telescopic hole (5) to the upper outer side of the upper clamping plate (1).

2. The safety clamp for steel structure hoisting according to claim 1, characterized in that: The upper end of the limiting rod (7) is fixedly connected to the limiting plate (8).

3. The safety clamp for steel structure hoisting according to claim 1, characterized in that: Four diagonal portions of the upper end surface of the upper clamping plate (1) are fixedly connected with lifting rings (6).

4. The safety clamp for steel structure hoisting according to claim 1, characterized in that: An anti-slip pad (11) is fixedly connected to the inner edge of the upper end surface of the lower clamping plate (3).

5. The safety clamp for steel structure hoisting according to claim 1, characterized in that: A clamping pad (13) is fixedly connected to the center of the lower end surface of the upper clamping plate (1).

6. The safety clamp for steel structure hoisting according to claim 1, characterized in that: A plurality of sets of protective feet (12) are fixedly connected to the edges on both sides of the lower end of the lower clamping plate (3).

7. The safety clamp for steel structure hoisting according to claim 1, characterized in that: The lower clamping plate (3) can be moved up and down in a staggered manner.

8. The safety clamp for steel structure hoisting according to claim 1, characterized in that: The limiting rod (7) and the threaded rod (9) have the same length.

Images