Large-diameter steel bar hoisting clamp

Abstract

The utility model discloses a large-diameter reinforcing steel bar hoisting clamp, which relates to the technical field of hoisting clamps, and comprises a telescopic bracket, the left side and the right side of the telescopic bracket are respectively connected with a lifting bracket in a sliding manner, the top end of each lifting bracket is fixedly connected with a hoisting ring, and the bottom end of each lifting bracket is connected with a clamping mechanism in a sliding manner. According to the reinforcing steel bar hoisting device, the sliding sleeve shell, the extension column, the first motor, the first screw rod, the first guide column and the first limiting plate are matched with one another, and the two ends of a reinforcing steel bar can be clamped by arranging the two clamping mechanisms, so that the gravity of the reinforcing steel bar is dispersed, the reinforcing steel bar is more stable during hoisting, inclination and falling of the reinforcing steel bar are avoided, and the service life of the reinforcing steel bar is prolonged. And meanwhile, a first motor drives a first screw rod to rotate, so that an extension column can slide along a first guide column, the distance between the clamping mechanisms can be adjusted, steel bars with different lengths can be conveniently clamped and hoisted, and the hoisting clamp is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting clamps, in particular to a large-diameter steel bar hoisting clamp. Background Art

[0002] Rebar is a commonly used building material in construction projects. We often encounter bundles or large-diameter rebars. These bundles or large-diameter rebars are very heavy. When constructing high-rise buildings or bridges, manpower cannot transport bundles or large-diameter rebars to high places. Lifting equipment is needed to lift bundles or large-diameter rebars to high construction platforms.

[0003] The existing technology has the following problems:

[0004] When existing steel bar lifting clamps are used, they usually only clamp the middle part of bundled or large-diameter steel bars, which easily causes uneven force on both ends of the steel bars, making the steel bars prone to tilting and falling off, posing a great safety hazard. Utility Model Content

[0005] The utility model provides a large-diameter steel bar hoisting clamp to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A large-diameter steel bar lifting fixture comprises a telescopic bracket, wherein both left and right sides of the telescopic bracket are slidably connected with lifting brackets, the top end of the lifting bracket is fixedly connected with a lifting ring, and the bottom end of the lifting bracket is slidably connected with a clamping mechanism.

[0008] The telescopic bracket includes a sliding shell, and extension columns are slidably inserted on the left and right sides of the sliding shell, and the side of the extension column away from the sliding shell and the side of the lifting bracket close to the telescopic bracket, the middle of the sliding shell is fixedly connected with a first motor, and the left and right output shafts of the first motor are fixedly connected with a first screw, and the outer surface of the first screw is threadedly connected to the middle of the extension column, and a sliding groove 1 is provided on the front and rear sides of the extension column, and the interior of the sliding groove 1 is slidably connected to a limit plate 1, and a guide column 1 is fixedly connected to the side of the limit plate 1 close to the sliding shell, and the end of the guide column 1 away from the limit plate 1 passes through the outside of the extension column and is fixedly connected to the inner wall of the sliding shell.

[0009] A further improvement of the technical solution of the utility model is that the lifting bracket includes a connecting shell, which is fixedly connected to one end of the extension column away from the sliding shell, and the bottom end of the connecting shell is provided with a sliding groove 2 running through the front and back, and the clamping mechanism is slidably connected inside the sliding groove 2.

[0010] A further improvement of the technical solution of the utility model is that a second motor is fixedly connected to the middle of the top end of the inner wall of the second sliding groove, the output shaft of the second motor is fixedly connected to a second screw, the outer surface of the second screw is threadedly connected to a threaded sliding column, and the bottom end of the threaded sliding column is fixedly connected to the top end of the clamping mechanism.

[0011] A further improvement of the technical solution of the utility model is that: sliding grooves three are provided on the front and rear sides of the interior of the connecting sleeve, the interior of the sliding groove three is slidingly connected to a limiting plate two, the bottom end of the limiting plate two is fixedly connected to a guide column two, the bottom end of the limiting plate two passes through the interior of the sliding groove one and is fixedly connected to the top of the clamping mechanism.

[0012] A further improvement of the technical solution of the utility model is that the clamping mechanism includes a connecting plate, the connecting plate is fixedly connected to the bottom end of the threaded sliding column, a sliding groove four is opened at the bottom end of the connecting plate, a third motor is fixedly installed in the middle of the sliding groove four, and the output shafts at both the front and rear ends of the third motor are fixedly connected to the third screw.

[0013] A further improvement of the technical solution of the utility model is that: the outer surface of the third screw is threadedly connected with a threaded slider, and the left and right sides of the threaded slider are slidably connected with guide columns three that penetrate front and back, the guide columns three are fixedly connected to the inside of the sliding groove four, and the bottom end of the threaded slider is fixedly connected with a semicircular clamp.

[0014] A further improvement of the technical solution of the utility model is that: a plug-in slot is provided at the rear side of the bottom of the semicircular clamping plate at the front side, and a fixing slot is provided at the bottom of the inner surface of the plug-in slot.

[0015] A further improvement of the technical solution of the utility model is that a plug board is fixedly connected to the front side of the bottom end of the plug slot on the rear side, electric motors are fixedly installed on both the left and right sides of the rear side of the plug board, the output shaft of the electric motor is fixedly connected to a rotating clamping plate, an active groove that is conductive up and down is opened inside the plug board, and the rotating clamping plate is movably connected inside the active groove.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a large-diameter steel bar lifting clamp. Through the mutual cooperation among a sliding sleeve, an extension column, a first motor, a first screw rod, a guide column and a limit plate, two clamping mechanisms are set up to clamp the two ends of the steel bar, so that the gravity of the steel bar can be dispersed, thereby being more stable during lifting and avoiding the tilting and falling of the steel bar. At the same time, the first motor drives the first screw rod to rotate, so that the extension column can slide along the guide column, so that the distance between the clamping mechanisms can be adjusted, which is convenient for clamping and lifting steel bars of different lengths and facilitating the use of the lifting clamp.

[0018] 2. The utility model provides a large-diameter steel bar lifting clamp, which cooperates with each other among a connecting sleeve, a second motor, a second screw, a threaded sliding column, a second limit plate, a second guide column, a connecting plate, a third motor, a third screw, a threaded slider, a third guide column, and a semicircular clamp. The third motor can drive the third screw to rotate, so that the threaded slider drives the semicircular clamp to clamp the steel bar. At the same time, the second motor drives the second screw to rotate, so that the threaded sliding column can drive the connecting plate to rise, so that the steel bar can be clamped through the semicircular clamp and the connecting sleeve, so that the clamp has a better clamping effect on the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the telescopic bracket of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the lifting bracket of the utility model;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the clamping mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the semicircular splint of the utility model.

[0024] In the figure: 1. telescopic bracket; 11. sliding sleeve; 12. extension column; 13. first motor; 14. first screw; 15. guide column one; 16. limit plate one; 2. lifting bracket; 21. connecting sleeve; 22. second motor; 23. second screw; 24. threaded sliding column; 25. limit plate two; 26. guide column two; 3. lifting ring; 4. clamping mechanism; 41. connecting plate; 42. third motor; 43. third screw; 44. threaded slider; 45. guide column three; 46. semicircular clamp; 461. plug-in slot; 462. fixed card slot; 463. plug-in plate; 464. electric motor; 465. rotating card plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-2 As shown, the utility model provides a large-diameter steel bar lifting fixture, including a telescopic bracket 1, the left and right sides of the telescopic bracket 1 are slidably connected with a lifting bracket 2, the top of the lifting bracket 2 is fixedly connected with a lifting ring 3, the bottom of the lifting bracket 2 is slidably connected with a clamping mechanism 4, the telescopic bracket 1 includes a sliding shell 11, the left and right sides of the sliding shell 11 are slidably plugged with an extension column 12, the side of the extension column 12 away from the sliding shell 11 is connected to the side of the lifting bracket 2 close to the telescopic bracket 1, and the middle of the sliding shell 11 is fixedly connected with a first motor 1 3. The first motor 13 adopts a double-headed motor. The left and right output shafts of the first motor 13 are fixedly connected with the first screw 14. The outer surface of the first screw 14 is threadedly connected to the middle of the extension column 12. The front and rear sides of the extension column 12 are provided with sliding grooves 1. The interior of the sliding groove 1 is slidably connected with a limit plate 16. The limit plate 16 is fixedly connected with a guide column 15 on one side close to the sliding housing 11. The end of the guide column 15 away from the limit plate 16 passes through the outside of the extension column 12 and is fixedly connected to the inner wall of the sliding housing 11.

[0027] When clamping and lifting the steel bars, the steel bars can be clamped and fixed by the cooperation of the two lifting brackets 2 and the clamping mechanism 4, making the lifting of the steel bars more stable and avoiding the tilting and falling of the steel bars. At the same time, by starting the first motor 13, the first screw 14 can be driven to rotate, and the extension column 12 can be made to slide along the guide column 15, thereby pushing the lifting bracket 2 to slide, and the distance between the clamping mechanisms 4 can be adjusted, which facilitates the clamping and lifting of steel bars of different lengths and the use of the lifting clamp.

[0028] like Figure 3-4As shown, the utility model provides a large-diameter steel bar lifting clamp, the lifting bracket 2 includes a connecting shell 21, the connecting shell 21 is fixedly connected to the end of the extension column 12 away from the sliding shell 11, the bottom end of the connecting shell 21 is provided with a sliding groove 2 that penetrates front and back, the clamping mechanism 4 is slidably connected inside the sliding groove 2, a second motor 22 is fixedly connected to the middle of the top end of the inner wall of the sliding groove 2, the output shaft of the second motor 22 is fixedly connected to the second screw rod 23, the outer surface of the second screw rod 23 is threadedly connected with a threaded sliding column 24, the bottom end of the threaded sliding column 24 is fixedly connected to the top end of the clamping mechanism 4, the front and back sides of the interior of the connecting shell 21 are provided with sliding grooves 3, the interior of the sliding groove 3 is slidably connected with a limiting plate 25, the bottom end of the limiting plate 25 A guide column 26 is fixedly connected, the bottom end of the limit plate 25 passes through the interior of the sliding groove 1 and is fixedly connected to the top of the clamping mechanism 4. The clamping mechanism 4 includes a connecting plate 41, which is fixedly connected to the bottom end of the threaded sliding column 24. A sliding groove 4 is opened at the bottom end of the connecting plate 41. A third motor 42 is fixedly installed in the middle of the sliding groove 4. The third motor 42 adopts a double-headed motor. The output shafts at both ends of the third motor 42 are fixedly connected to the third screw 43. The outer surface of the third screw 43 is threadedly connected to a threaded slider 44. The left and right sides of the threaded slider 44 are slidably connected to guide columns 3 45 that pass through the front and back. The guide column 3 45 is fixedly connected to the interior of the sliding groove 4. The bottom end of the threaded slider 44 is fixedly connected to a semicircular clamping plate 46.

[0029] When clamping and fixing the steel bars, by starting the third motor 42, the third screw 43 can be driven to rotate, so that the threaded slider 44 can be rotated along the guide column three 45, thereby driving the semicircular clamping plate 46 to clamp the steel bars. At the same time, by starting the second motor 22, the second screw 23 can be driven to rotate, and under the restriction of the guide column two 26, the threaded slider 24 can drive the connecting plate 41 to rise, so that the steel bars can be clamped through the semicircular clamping plate 46 and the connecting sleeve 21, so that the clamp has a better clamping effect on the steel bars.

[0030] like Figure 5 As shown, the utility model provides a large-diameter steel bar lifting clamp, a plug-in slot 461 is provided at the bottom rear side of the front semicircular clamping plate 46, a fixed card slot 462 is provided at the bottom of the inner surface of the plug-in slot 461, a plug-in plate 463 is fixedly connected to the front side of the bottom end of the rear plug-in slot 461, an electric motor 464 is fixedly installed on both the left and right sides of the rear side of the plug-in plate 463, a rotating card plate 465 is fixedly connected to the output shaft of the electric motor 464, an upper and lower conductive movable slot is provided inside the plug-in plate 463, and the rotating card plate 465 is movably connected inside the movable slot;

[0031] When the semicircular clamp 46 is used to clamp the steel bar, the plug-in plate 463 will be inserted into the plug-in slot 461, and the rotating clamp 465 can be driven to rotate by starting the electric motor 464, so that the rotating clamp 465 can be inserted into the fixed slot 462, thereby fixing the front and rear semicircular clamps 46 to prevent the bottom of the semicircular clamp 46 from separating when fixing.

[0032] The following is a detailed description of the working principle of the large diameter steel bar lifting clamp.

[0033] like Figure 1-5 As shown, when the steel bars are clamped and hoisted, the third motor 42 can drive the third screw 43 to rotate, so that the threaded slider 44 can drive the semicircular clamp 46 to clamp the steel bars. At the same time, the second motor 22 can drive the second screw 23 to rotate, so that the threaded slide column 24 can drive the connecting plate 41 to rise, so that the semicircular clamp 46 and the connecting sleeve 21 can clamp the steel bars. At the same time, the first motor 13 can drive the first screw 14 to rotate, so that the extension column 12 can push the lifting bracket 2 to slide, and the distance between the clamping mechanisms 4 can be adjusted, which facilitates the clamping and hoisting of steel bars of different lengths and the use of lifting clamps.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A large diameter steel bar lifting fixture, characterized by: It comprises a telescopic bracket (1), the left and right sides of the telescopic bracket (1) are both slidably connected to a lifting bracket (2), the top end of the lifting bracket (2) is fixedly connected to a lifting ring (3), and the bottom end of the lifting bracket (2) is slidably connected to a clamping mechanism (4); The telescopic support (1) comprises a sliding shell (11), and an extension column (12) is slidably inserted on both the left and right sides of the sliding shell (11), and a side of the extension column (12) away from the sliding shell (11) is connected to a side of the lifting support (2) close to the telescopic support (1). A first motor (13) is fixedly connected to the middle of the sliding shell (11), and the left and right output shafts of the first motor (13) are fixedly connected to a first screw rod (14), and the outer surface of the first screw rod (14) is threadedly connected to the middle of the extension column (12). A sliding groove (1) is provided on both the front and rear sides of the extension column (12), and a limit plate (16) is slidably connected to the inside of the sliding groove (1), and a guide column (15) is fixedly connected to the side of the limit plate (16) close to the sliding shell (11), and an end of the guide column (15) away from the limit plate (16) passes through the outside of the extension column (12) and is fixedly connected to the inner wall of the sliding shell (11).

2. The large diameter steel bar lifting fixture according to claim 1 is characterized in that: The lifting bracket (2) comprises a connecting sleeve (21), wherein the connecting sleeve (21) is fixedly connected to one end of the extension column (12) away from the sliding sleeve (11), and a second sliding groove running through the front and rear is provided at the bottom end of the connecting sleeve (21), and the clamping mechanism (4) is slidably connected inside the second sliding groove.

3. The large diameter steel bar lifting fixture according to claim 2 is characterized in that: A second motor (22) is fixedly connected to the middle of the top of the inner wall of the second sliding groove; a second screw rod (23) is fixedly connected to the output shaft of the second motor (22); a threaded sliding column (24) is threadedly connected to the outer surface of the second screw rod (23); and the bottom end of the threaded sliding column (24) is fixedly connected to the top of the clamping mechanism (4).

4. The large diameter steel bar lifting fixture according to claim 3 is characterized in that: The connection sleeve (21) is provided with sliding grooves three on both the front and rear sides thereof, the interior of the sliding groove three is slidably connected to a limiting plate two (25), the bottom end of the limiting plate two (25) is fixedly connected to a guide column two (26), the bottom end of the limiting plate two (25) passes through the interior of the sliding groove one and is fixedly connected to the top of the clamping mechanism (4).

5. The large diameter steel bar lifting fixture according to claim 4 is characterized in that: The clamping mechanism (4) comprises a connecting plate (41), the connecting plate (41) being fixedly connected to the bottom end of the threaded sliding column (24), a sliding groove (4) being provided at the bottom end of the connecting plate (41), a third motor (42) being fixedly installed in the middle of the sliding groove (4), and a third screw rod (43) being fixedly connected to the front and rear output shafts of the third motor (42).

6. The large diameter steel bar lifting fixture according to claim 5, characterized in that: The outer surface of the third screw rod (43) is threadedly connected to a threaded slider (44), and the left and right sides of the threaded slider (44) are slidably connected to guide columns (45) that penetrate the front and rear, and the guide columns (45) are fixedly connected to the inside of the sliding groove (4), and the bottom end of the threaded slider (44) is fixedly connected to a semicircular clamping plate (46).

7. The large diameter steel bar lifting fixture according to claim 6 is characterized in that: A plug-in slot (461) is provided at the rear side of the bottom of the front semicircular clamping plate (46), and a fixing slot (462) is provided at the bottom of the inner surface of the plug-in slot (461).

8. The large diameter steel bar lifting fixture according to claim 7 is characterized in that: A plug-in board (463) is fixedly connected to the front side of the bottom end of the plug-in slot (461) on the rear side, and electric motors (464) are fixedly installed on both the left and right sides of the rear side of the plug-in slot (463). The output shaft of the electric motor (464) is fixedly connected to a rotating card plate (465). An active slot that is conductive up and down is provided inside the plug-in slot (463), and the rotating card plate (465) is movably connected inside the active slot.

Images