Steel rail hoisting clamp
By designing rail hoisting clamps and using grippers and anti-slip pads to increase friction, the problem of rail slippage during hoisting was solved, improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGTIEJIAN ELECTRIC HUAJU GRP NO 3 ENG CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, rails are prone to slippage during hoisting, resulting in high safety risks for construction workers and low construction efficiency.
Design a rail lifting clamp, including a clamping rod, jaws and anti-slip pads. The jaws and anti-slip pads work together to clamp the rail, increasing friction and preventing slippage. The clamping mechanism works in conjunction with a crane to achieve stable lifting.
It effectively prevents rail slippage, improves construction safety and efficiency, and reduces personal safety risks.
Smart Images
Figure CN224242559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting clamp technology, and in particular to a rail lifting clamp. Background Technology
[0002] Steel rails are rolled from carbon-killed steel smelted in open-hearth furnaces or oxygen converters. Their purpose is to withstand the running pressure and impact loads of locomotives and rolling stock. As a major component of railway tracks, rails guide the wheels of locomotives and rolling stock, bearing the enormous pressure of the wheels and transmitting it to the sleepers. Modern steel rails have an "I"-shaped cross-section, consisting of the rail head (connected to the wheel), the rail web, and the rail base. Different routes have different requirements for the strength, stability, and wear resistance of the rails.
[0003] In existing technologies, to meet the requirements of motor vehicle use, rails must have smooth surfaces, large mass, and long dimensions, and there is no specially designed structure for hoisting. This design increases the difficulty of installation operations. At the same time, when using a crane to lift the rails during hoisting operations, dangerous accidents such as rail slippage are likely to occur, seriously affecting the personal safety of construction personnel and making the rail hoisting work complex and difficult, which seriously affects the efficiency of construction. Therefore, it is necessary to improve the rail hoisting clamp to solve the above problems. Utility Model Content
[0004] In order to overcome the problem that slippage and other dangerous accidents are easy to occur when hoisting steel rails, which seriously affect the personal safety of construction workers and the efficiency of construction.
[0005] The technical solution of this utility model is as follows: a rail hoisting clamp, including a clamping rod, a clamping jaw and a hoisting mechanism, a rail body is provided on the inner side of the clamping rod, a hoisting mechanism is provided on the top of the clamping rod, a clamping jaw is fixedly connected to the inner side of the clamping rod, a reinforcing rib is fixedly connected between the clamping jaw and the clamping rod, an anti-slip pad is fixedly connected inside the clamping jaw, the rail body is provided on the inner side of the anti-slip pad, and the clamping rod drives the clamping jaw to move closer and clamp the rail body.
[0006] Preferably, the gripper has a slot at the opposite position of the anti-slip pad, and the anti-slip pad is fixedly connected inside the slot.
[0007] Preferably, the clamping rod is internally fixedly connected to a first fixing rod, the first fixing rod is externally rotatably connected to a first connecting block, the first connecting block is internally slidably connected to a slide rod, the bottom of the slide rod is fixedly connected to a second connecting block, the second connecting block is internally fixedly connected to a second fixing rod, the clamping rod is internally fixedly connected to a third fixing rod, a rotating block is rotatably connected between the second fixing rod and the third fixing rod, and a limiting block is externally fixedly connected to the slide rod.
[0008] Preferably, the first connecting block has a groove at the relative position of the slide rod, and the slide rod is slidably connected inside the groove.
[0009] Preferably, the second connecting block has a groove at a position relative to the rotating block, and the rotating block is rotatably connected inside the groove.
[0010] Preferably, there are two of each of the second fixed rod, the third fixed rod, and the rotating block. The two second fixed rods are symmetrically fixedly connected inside the second connecting block, the two third fixed rods are symmetrically fixedly connected inside the clamping rod, and the two rotating blocks are symmetrically rotatably connected between the two second fixed rods and the two third fixed rods.
[0011] Preferably, the lifting mechanism includes a connecting buckle, which is fixedly connected to the top of the slide bar. A lifting ring is provided inside the connecting buckle, and a bolt is movably connected inside the lifting ring. A nut is connected to the external thread of the bolt, and a wire rope body is provided inside the lifting ring.
[0012] The beneficial effects of this utility model are as follows: When hoisting steel rails, by adding clamps and anti-slip pads, the clamping rods move closer together to drive the clamps to hold the steel rails. The anti-slip pads increase the friction between the steel rails and the clamps, reducing the risk of the steel rails slipping off. This avoids the problem of dangerous accidents such as slippage that easily occur when hoisting steel rails, which seriously affect the personal safety of construction personnel and the efficiency of construction. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the clamping rod and its connected components of this utility model;
[0015] Figure 3 This is a cross-sectional view of the clamping rod and its connected components of this utility model;
[0016] Figure 4 This is a schematic diagram of the hoisting mechanism of this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. Clamping rod; 4. Rail body; 21. Gripper; 22. Reinforcing rib; 23. Anti-slip pad; 24. First fixing rod; 25. First connecting block; 26. Sliding rod; 27. Second connecting block; 28. Second fixing rod; 29. Third fixing rod; 210. Rotating block; 211. Limiting block; 31. Connecting buckle; 32. Lifting ring; 33. Bolt; 34. Nut; 35. Wire rope body. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Please see Figure 1- Figure 4 This utility model provides an embodiment: a rail hoisting clamp, including a clamping rod 1, a clamping jaw 21, and a hoisting mechanism. A rail body 4 is disposed on the inner side of the clamping rod 1, and a hoisting mechanism is disposed on the top of the clamping rod 1. A clamping jaw 21 is fixedly connected to the inner side of the clamping rod 1, and a reinforcing rib 22 is fixedly connected between the clamping jaw 21 and the clamping rod 1. An anti-slip pad 23 is fixedly connected inside the clamping jaw 21, and the rail body 4 is disposed inside the anti-slip pad 23. The rail body 4 is fully restrained by the clamping jaw 21 and the anti-slip pad 23. When hoisting the rail body 4, the clamping jaw... The holding rod 1 moves inward, causing the gripper 21 and anti-slip pad 23 to clamp the rail body 4, effectively restricting the rail body 4 and preventing it from sliding. Then, two cranes work together to lift the rail body 4 from both ends simultaneously through the hoisting mechanism and move it to the installation position for installation. The gripper 21 has a slot at the opposite position of the anti-slip pad 23. The anti-slip pad 23 is fixedly connected inside the slot. Through the cooperation of the slot and the anti-slip pad 23, the rail body 4 is clamped and its movement is effectively restricted, thereby reducing the possibility of the rail body 4 slipping after being lifted.
[0020] Please see Figure 1 - Figure 3In this embodiment, a first fixing rod 24 is fixedly connected inside the clamping rod 1. A first connecting block 25 is rotatably connected to the outside of the first fixing rod 24. A sliding rod 26 is slidably connected inside the first connecting block 25. A second connecting block 27 is fixedly connected to the bottom of the sliding rod 26. A second fixing rod 28 is fixedly connected inside the second connecting block 27. A third fixing rod 29 is fixedly connected inside the clamping rod 1. A rotating block 210 is rotatably connected between the second fixing rod 28 and the third fixing rod 29. A limiting block 211 is fixedly connected to the outside of the sliding rod 26. The limiting block 211 restricts the sliding of the sliding rod 26, preventing it from sliding too far and detaching from the first connecting block 25. A groove is provided in the first connecting block 25 at the relative position of the sliding rod 26. The sliding rod 26 is slidably connected inside the groove. The groove restricts the sliding of the sliding rod 26 and guides it. The slide bar 26 can only slide up and down to prevent it from shifting left and right, making the installation more stable and reducing the risk of slippage. The second connecting block 27 has a groove at the relative position of the rotating block 210. The rotating block 210 is rotatably connected inside the groove. The groove restricts the rotation of the rotating block 210 and prevents the rotating block 210 from detaching from the second connecting block 27. There are two second fixing rods 28, two third fixing rods 29, and two rotating blocks 210. The two second fixing rods 28 are symmetrically fixed inside the second connecting block 27. The two third fixing rods 29 are symmetrically fixed inside the clamping rod 1. The two rotating blocks 210 are symmetrically rotatably connected between the two second fixing rods 28 and the two third fixing rods 29. Through the cooperation of the second fixing rods 28, the third fixing rods 29 and the rotating blocks 210, the clamping rod 1 is driven to move, thereby clamping the rail body 4 for hoisting.
[0021] Please see Figure 1 - Figure 2 , Figure 4 In this embodiment, the hoisting mechanism includes a connecting buckle 31, which is fixedly connected to the top of the slide rod 26. A lifting ring 32 is provided inside the connecting buckle 31, and a bolt 33 is movably connected inside the lifting ring 32. A nut 34 is threadedly connected to the outside of the bolt 33. A wire rope body 35 is provided on the inner side of the lifting ring 32. During hoisting, the hoisting mechanism works in conjunction with the crane to lift the rail body 4 from both ends and move the rail body 4 to the installation position. This prevents the rail from deforming due to uneven stress after hoisting, while increasing the stability after hoisting, thereby improving the safety of construction.
[0022] During operation, the clamping rod 1 is placed outside the rail body 4. After the lifting ring 32 is passed through the connecting buckle 31, the wire rope body 35 is placed inside the lifting ring 32. Then, the bolt 33 is passed through the lifting ring 32, and the nut 34 is connected to the bolt 33. After the wire rope body 35 is connected to the connecting buckle 31 through the lifting ring 32, bolt 33, and nut 34, two cranes work together to pull the wire rope body 35 and the connecting buckle 31 upwards. The connecting buckle 31 drives the sliding rod 26 to slide upwards. The sliding rod 26 cooperates with the second connecting block 27, the second fixing rod 28, and the third fixing rod 29 to make... The clamping rod 1 rotates around the first fixed rod 24, thereby driving the jaws 21 to move inward. The jaws 21 then clamp the rail body 4 through the slots inside. The anti-slip pad 23 increases the friction between the anti-slip pad and the rail body 4, thereby lifting the rail body 4. After the rail body 4 is moved to the required installation position, the crane slides downward through the slide rod 26. The second fixed rod 28, the third fixed rod 29 and the rotating block 210 work together to open the clamping rod 1, thereby releasing the jaws 21 from the anti-slip pad 23 and completing the lifting of the rail body 4.
[0023] By following the steps described above and adding clamps 21 and anti-slip pads 23, the problem of slippage and other dangerous accidents that easily occur when hoisting steel rails is solved, which seriously affects the personal safety of construction workers and the efficiency of construction.
Claims
1. A rail hoisting clamp, comprising a clamping rod (1), characterized in that: It also includes a gripper (21) and a hoisting mechanism. The inner side of the gripping rod (1) is provided with a rail body (4). The top of the gripping rod (1) is provided with a hoisting mechanism. The inner side of the gripping rod (1) is fixedly connected with a gripper (21). A reinforcing rib (22) is fixedly connected between the gripper (21) and the gripping rod (1). An anti-slip pad (23) is fixedly connected inside the gripper (21). The rail body (4) is located inside the anti-slip pad (23). The gripper (1) drives the gripper (21) to move closer to clamp the rail body (4).
2. The rail hoisting clamp according to claim 1, characterized in that: The gripper (21) has a slot at the opposite position of the anti-slip pad (23), and the anti-slip pad (23) is fixedly connected inside the slot.
3. The rail hoisting clamp according to claim 1, characterized in that: The clamping rod (1) is internally fixedly connected to a first fixed rod (24), the first fixed rod (24) is externally rotatably connected to a first connecting block (25), the first connecting block (25) is internally slidably connected to a slide rod (26), the bottom of the slide rod (26) is fixedly connected to a second connecting block (27), the second connecting block (27) is internally fixedly connected to a second fixed rod (28), the clamping rod (1) is internally fixedly connected to a third fixed rod (29), the second fixed rod (28) and the third fixed rod (29) are rotatably connected to a rotating block (210), and the slide rod (26) is externally fixedly connected to a limiting block (211).
4. A rail hoisting clamp according to claim 3, characterized in that: The first connecting block (25) has a groove at the relative position of the slide rod (26), and the slide rod (26) is slidably connected inside the groove.
5. A rail hoisting clamp according to claim 3, characterized in that: The second connecting block (27) has a rotating groove at the relative position of the rotating block (210), and the rotating block (210) is rotatably connected inside the rotating groove.
6. A rail hoisting clamp according to claim 3, characterized in that: Two of each of the second fixing rod (28), the third fixing rod (29), and the rotating block (210) are provided. The two second fixing rods (28) are symmetrically fixedly connected inside the second connecting block (27), the two third fixing rods (29) are symmetrically fixedly connected inside the clamping rod (1), and the two rotating blocks (210) are symmetrically rotatably connected between the two second fixing rods (28) and the two third fixing rods (29).
7. A rail hoisting clamp according to claim 1, characterized in that: The hoisting mechanism includes a connecting buckle (31), which is fixedly connected to the top of the slide bar (26). A lifting ring (32) is provided inside the connecting buckle (31), and a bolt (33) is movably connected inside the lifting ring (32). A nut (34) is threaded on the outside of the bolt (33), and a wire rope body (35) is provided on the inside of the lifting ring (32).