Strip steel lifting appliance capable of preventing strip steel from falling off

Abstract

The utility model relates to the technical field of strip steel lifting, in particular to a strip steel lifting appliance capable of preventing strip steel from falling, which comprises a C-shaped lifting appliance main body, a lifting lug and a balancing weight are fixedly connected onto a lifting arm at the top of the lifting appliance main body, and a stop lever is rotatably mounted on a lifting arm at the bottom of the lifting appliance main body. A limiting mechanism for limiting the top end of the stop lever to move is arranged at the bottom of the balancing weight and is matched with the stop lever to limit the strip steel from being separated from the lifting appliance main body. The lifting arm at the bottom of the lifting appliance body penetrates through the middle space of strip steel, the rotary stop lever is in a vertical state, and the top end of the stop lever is limited through the limiting mechanism, so that the strip steel is prevented from being separated from the lifting appliance body through cooperation of the stop lever and the limiting mechanism, the safety in the strip steel lifting process is improved, and the safety risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of strip steel lifting technology, and in particular to a strip steel lifting device to prevent strip steel from falling. Background Technology

[0002] Steel strip is the raw material for making steel pipes and other profiles. Steel strip is usually in coil form and is made into steel pipes in the pipe manufacturing workshop through rolling mills and welding equipment.

[0003] Before entering the rolling mill, the strip steel needs to be transported from the stockyard to the rolling mill by a lifting device. The conventional strip steel lifting device is C-shaped, with ear plates on the top for the overhead crane hook to hook. The bottom end of the lifting device is inserted into the central cavity of the coiled strip steel, and then the strip steel is lifted for transportation.

[0004] However, for strip steel that is narrow in width and large in diameter, if there is unexpected shaking during the hoisting process, the strip steel may overturn, or there is even a risk that the strip steel may fall off the hoisting equipment and fall down, which poses a safety hazard that cannot be ignored. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the present invention provides a strip lifting tool to prevent strip from falling.

[0006] The present invention provides a strip lifting device for preventing strip from falling, which adopts the following technical solution:

[0007] A strip steel lifting device for preventing strip steel from falling includes a C-shaped lifting device body. A lifting lug and a counterweight are fixedly connected to the top boom of the lifting device body. A stop bar is rotatably installed on the bottom boom of the lifting device body. A limiting mechanism for restricting the movement of the top of the stop bar is provided at the bottom of the counterweight. The limiting mechanism and the stop bar cooperate with each other to prevent the strip steel from detaching from the lifting device body.

[0008] By adopting the above technical solution, the bottom boom of the lifting device is inserted into the middle space of the strip steel, the rotating stop bar is in a vertical state, and the top of the stop bar is limited by a limiting mechanism. Thus, the cooperation of the stop bar and the limiting mechanism prevents the strip steel from detaching from the lifting device body, thereby improving the safety of the strip steel lifting process and reducing safety risks.

[0009] Optionally, a sliding groove 1 is provided on the top surface of the bottom boom of the lifting device body along the length direction, and sliding groove 2 is provided on the side walls of both sides of the sliding groove 1 along the length direction. The sliding groove 1 passes through the end face of the bottom boom of the lifting device body, and the sliding groove 2 is located inside the bottom boom of the lifting device body. The stop bar is movably installed in the sliding groove 1, and a sliding rod is vertically fixed to the end of the stop bar. The sliding rod is slidably installed in the two sliding grooves 2.

[0010] By adopting the above technical solution, the stop bar can be placed in the slide groove before hoisting to reduce the impact of the stop bar on the main body of the lifting device when hooking the steel strip, and at the same time reduce the space occupied by the stop bar.

[0011] Optionally, the limiting mechanism includes a C-shaped baffle with a horizontally oriented opening, and a rod slidably inserted into the side wall of the C-shaped baffle to limit the stop bar from disengaging from the interior of the C-shaped baffle.

[0012] By adopting the above technical solution, after the top of the stop bar enters the C-shaped baffle, the insert rod is inserted into the C-shaped baffle, thereby preventing the stop bar from leaving the C-shaped baffle. This limiting mechanism is easy to operate.

[0013] Optionally, a pull rod is vertically fixed to the end of the insertion rod outside the C-shaped baffle, and tension springs are connected to both ends of the pull rod and the outer wall of the C-shaped baffle.

[0014] By adopting the above technical solution, pulling the lever outward causes the insertion rod to move outward. After releasing the lever, the insertion rod automatically inserts into the C-shaped baffle under the drive of the tension spring, effectively improving the stability of the insertion rod during operation.

[0015] Optionally, a guide cylinder is fitted on the outside of the insertion rod, and the guide cylinder is fixed to the outer wall of the C-shaped baffle.

[0016] By adopting the above technical solution, the guide cylinder guides the insertion rod left and right, ensuring the stability of the insertion rod's movement trajectory.

[0017] Optionally, a top plate is fixed to the top surface of the C-shaped baffle, and a fixing block is fixed to the bottom surface of the counterweight, with the top plate and the fixing block being rotatably connected.

[0018] By adopting the above technical solution, after the top of the stop bar is limited to inside the C-shaped baffle, the C-shaped baffle can be rotated horizontally, and the movement of the stop bar is blocked by the side wall of the C-shaped baffle, thereby improving the firmness of the stop bar after it is limited.

[0019] Optionally, the fixed block has a stepped receiving groove inside, and a rotating block is fixed to the top surface of the top plate. The rotating block is adapted to the receiving groove and is rotatably installed in the receiving groove.

[0020] By adopting the above technical solution, the rotating block can rotate within the receiving groove, thereby facilitating the rotation of the C-shaped baffle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a strip lifting device designed to prevent strip from falling, according to an embodiment of this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of a strip lifting device designed to prevent strip from falling, according to an embodiment of this utility model. Figure 2 .

[0023] Figure 3 yes Figure 1 Sectional view along the AA direction.

[0024] Figure 4 This is a schematic diagram of the limiting mechanism according to an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Lifting device body; 10. Slide 1; 11. Slide 2; 2. Lifting lug; 3. Counterweight block; 4. Stop bar; 40. Slide bar; 5. Limiting mechanism; 50. C-shaped baffle; 51. Top plate; 52. Fixing block; 520. Receiving groove; 53. Rotating block; 54. Insert rod; 55. Pull rod; 56. Tension spring; 57. Guide cylinder. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 The present invention will be described in further detail below.

[0027] This utility model discloses a strip lifting device to prevent strip from falling. (Refer to...) Figure 1 and Figure 2 The anti-strip steel lifting device includes a C-shaped lifting device body 1, a lifting lug 2 fixedly connected to the middle of the top boom of the lifting device body 1, and a counterweight block 3 fixedly connected to the end of the top boom of the lifting device body 1.

[0028] Reference Figures 1-3 A stop bar 4 is installed on the bottom boom of the lifting device body 1, and a limit mechanism 5 is provided at the bottom of the counterweight block 3. The stop bar 4 and the limit mechanism 5 cooperate to prevent the strip steel from detaching from the lifting device body 1. A first groove 10 is opened along the length direction on the top surface of the bottom boom of the lifting device body 1, and a second groove 11 is opened along the length direction on the side walls on both sides of the first groove 10. The first groove 10 passes through the end of the bottom boom of the lifting device body 1, and the second groove 11 is located inside the bottom lifting device of the lifting device body 1.

[0029] Reference Figures 1-3 The end of the stop rod 4 is vertically fixed with a sliding rod 40. The stop rod 4 is movably set in the first sliding groove 10. The sliding rod 40 is slidably installed in the two second sliding grooves 11. Thus, the second sliding groove 11 and the sliding rod 40 cooperate to restrict one end of the stop rod 4 from detaching from the bottom boom of the lifting device body 1. The other end of the stop rod 4 can move laterally and rotate vertically.

[0030] Reference Figure 2 and Figure 4 The limiting mechanism 5 includes a C-shaped baffle 50 with its opening facing horizontally. A top plate 51 is fixedly connected to the top of the C-shaped baffle 50. A fixing block 52 is fixedly connected to the bottom surface of the counterweight 3. A stepped receiving groove 520 is provided in the fixing block 52. A rotating block 53 adapted to the receiving groove 520 is rotatably installed in the receiving groove 520. The bottom surface of the rotating block 53 is fixedly connected to the top surface of the top plate 51.

[0031] Reference Figure 4A rod 54 for blocking the baffle 4 is slidably inserted through the side wall of the C-shaped baffle 50. A pull rod 55 is vertically fixed to the end of the rod 54 outside the C-shaped baffle 50. Tension springs 56 are connected between both ends of the pull rod 55 and the outer wall of the C-shaped baffle 50. A guide cylinder 57 is also sleeved on the outside of the rod 54 and is fixed to the outer wall of the C-shaped baffle 50.

[0032] The implementation principle of the anti-strip steel lifting device of this utility model embodiment is as follows: When lifting strip steel, first insert the bottom boom of the lifting device body 1 into the middle space of the strip steel, then pull the stop rod 4 outward, then rotate the stop rod 4 upward, and then pull the pull rod 55 outward so that the top of the stop rod 4 moves into the C-shaped baffle 50. Then release the pull rod 55. Under the elastic drive of the tension spring 56, the insertion rod 54 automatically inserts into the opening of the C-shaped baffle 50, thereby closing the opening and restricting the top of the stop rod 4 from moving out of the C-shaped baffle 50. At the same time, the C-shaped baffle 50 can be rotated 180° to block the movement of the stop rod 4. At this time, the strip steel is blocked by the stop rod 4, which can restrict it from falling out of the lifting device body 1, thereby improving the safety of the strip steel lifting process and reducing the safety risk.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A falling prevention type strip steel sling, characterized by: The utility model provides a C-shaped lifting appliance body (1), the lifting lug (2) and the counterweight (3) are fixedly connected on the top lifting arm of lifting appliance body (1), the stop rod (4) is rotatably installed on the bottom lifting arm of lifting appliance body (1), the counterweight (3) bottom is provided with the limiting mechanism (5) for limiting the movement of stop rod (4) top end, limiting mechanism (5) and stop rod (4) are mutually cooperated to limit strip steel to separate from lifting appliance body (1).

2. The falling prevention type steel strip sling according to claim 1, characterized by: The top surface of the bottom lifting arm of the lifting appliance body (1) is provided with a sliding groove one (10) along the length direction, the two side walls of the sliding groove one (10) are provided with a sliding groove two (11) along the length direction, the sliding groove one (10) penetrates the end surface of the bottom lifting arm of the lifting appliance body (1), the sliding groove two (11) is located in the bottom lifting arm of the lifting appliance body (1), the stop rod (4) is movably arranged in the sliding groove one (10), the end of the stop rod (4) is vertically fixedly connected with a sliding rod (40), and the sliding rod (40) is slidably arranged in the two sliding grooves two (11).

3. The falling prevention type steel strip hanger according to claim 1 or 2, characterized by: The limiting mechanism (5) comprises a C-shaped baffle (50), the opening of the C-shaped baffle (50) faces horizontally, and an insertion rod (54) for limiting the stop rod (4) from separating from the inside of the C-shaped baffle (50) is slidably inserted into the side wall of the C-shaped baffle (50).

4. The falling prevention type steel strip hanger according to claim 3, characterized by: The end of the insertion rod (54) located outside the C-shaped baffle (50) is vertically fixedly connected with a pull rod (55), and the two ends of the pull rod (55) are connected with the outer wall of the C-shaped baffle (50) through the extension springs (56).

5. The falling prevention type steel strip hanger according to claim 4, characterized by: The outer side of the insertion rod (54) is provided with a guide cylinder (57), and the guide cylinder (57) is fixedly connected to the outer wall of the C-shaped baffle (50).

6. The falling prevention type steel strip hanger according to claim 3, wherein: The top surface of the C-shaped baffle (50) is fixedly connected with a top plate (51), the bottom surface of the counterweight (3) is fixedly connected with a fixed block (52), and the top plate (51) is rotatably connected with the fixed block (52).

7. The falling prevention type steel strip hanger according to claim 6, characterized by: The inside of the fixed block (52) is provided with a stepped accommodating groove (520), the top surface of the top plate (51) is fixedly connected with a rotating block (53), and the rotating block (53) is rotatably installed in the accommodating groove (520).

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