Electric hoist anti-falling device

Abstract

The utility model discloses a kind of electric hoist anti-falling devices, it is related to electric hoist technical field, specifically a kind of electric hoist anti-falling device, including frame, the top of the frame is provided with through slot, and the through slot has two groups, the opposite inner wall of two groups the through slot is all fixedly connected with first bearing, two groups the first bearing inside are all rotationally connected with first rotating shaft, the opposite end of two groups the first rotating shaft is all fixedly connected with two -way screw rod, by driving motor operation through second rotating shaft drive worm rotation, by the effect of the meshing of worm and worm wheel, by first rotating shaft drive two -way screw rod rotation, can drive two threaded blocks and two arc plates move, make the electric hoist anti-falling device have the effect of clamping electric push hoist, by the position of two arc plates and two threaded blocks can be adjusted, different electric hoist can be clamped, improve the flexibility of the device, realize suitable for different electric hoist.

Description

Technical Field

[0001] This utility model relates to the field of electric hoist technology, specifically to an electric hoist anti-fall device. Background Technology

[0002] Electric hoists are a type of special lifting equipment installed on overhead cranes and gantry cranes. They are characterized by their small size, light weight, simple operation, and ease of use, and are used in industrial and mining enterprises, warehouses, docks, and other places. During operation, the electric hoist can run along the bottom plate of an I-beam. Currently, due to some uncertain factors such as severe wear of the electric hoist's traveling wheels, equipment aging, and improper operation by personnel, there is a risk that the electric hoist's traveling wheels may separate from the I-beam. Separation of the traveling wheels from the I-beam can cause an accidental fall, thus necessitating a fall protection device for the electric hoist.

[0003] However, most current electric hoist anti-fall devices are not compatible with electric hoists of different sizes, and it is inconvenient to adjust the distance between the two arcs, thus reducing flexibility. Furthermore, most of them cannot adjust the angle of the clamping plate and cannot be adapted to I-beams of different sizes, which causes inconvenience and reduces the practicality of the device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an electric hoist anti-fall device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electric hoist anti-fall device, comprising a frame, the top of which has a through groove, and there are two sets of through grooves. A first bearing is fixedly connected to the inner wall of each set of through grooves. A first shaft is rotatably connected to each set of first bearings. A bidirectional lead screw is fixedly connected to the opposite end of each set of first shafts. Threaded blocks are threaded onto the surface of the bidirectional lead screw, and there are two threaded blocks. An arc-shaped plate is fixedly connected to the bottom of each of the two threaded blocks. A worm gear is fixedly connected to the other end of each of the two first shafts. Two mounting plates are fixedly connected to one side of the frame. Each of the mounting plates has a second bearing fixedly connected to its opposite sides. Each of the two second bearings has a second rotating shaft rotatably connected to its inner surface. The opposite ends of the two second rotating shafts are fixedly connected to a worm gear, which meshes with two worm wheels. The inner wall of the frame is fixedly connected to a connecting plate, and there are two sets of connecting plates. Each set of connecting plates has a groove at its top, and a movable plate is movably connected to the groove via a hinge. There are also two sets of movable plates, and each set of movable plates has a movable groove on one side. A sliding plate is slidably connected to the movable groove. A first electric push rod is movably connected to the bottom of the inner wall of the groove via a pin, and the other end of the first electric push rod is movably connected to one side of the sliding plate via a pin.

[0008] Optionally, both sets of movable plates have slots at their tops, and a second electric push rod is fixedly connected to the bottom of the inner wall of the slot, with an L-shaped plate fixedly connected to the top of the second electric push rod.

[0009] Optionally, a bandage is fixedly connected to one side of the frame, and there are two sets of bandages. The surfaces of the two sets of bandages are threaded with studs. A screw hole is opened on the other side of the frame, and there are two sets of screw holes. The two sets of screw holes are adapted to the two sets of studs.

[0010] Optionally, the inner walls of both sets of arc-shaped plates are provided with soft pads, and the soft pads are made of rubber.

[0011] Optionally, both sides of the inner wall of the two sets of through grooves are provided with sliding grooves, and a slider is slidably connected in the sliding grooves. The slider is fixedly connected to one side of the threaded block.

[0012] Optionally, a control panel is provided on the top of the frame, and the control panel is electrically connected to the drive motor, the first electric push rod, and the second electric push rod.

[0013] Optionally, handles are provided on both sides of the frame, and anti-slip sleeves are fixedly connected to the surface of the handles.

[0014] Optionally, upright plates are fixedly connected to both sides of the frame, and lighting rods are provided on the opposite surfaces of the two upright plates.

[0015] This utility model provides an anti-fall device for electric hoists, which has the following beneficial effects:

[0016] 1. This electric hoist anti-fall device, through the operation of a drive motor, drives a worm gear to rotate via a second rotating shaft. The worm gear meshes with a worm wheel, which in turn drives a bidirectional lead screw to rotate via a first rotating shaft. This causes two threaded blocks and two arc-shaped plates to move, enabling the electric hoist anti-fall device to clamp electric push hoists. By adjusting the positions of the two arc-shaped plates and two threaded blocks, it can clamp electric hoists of different sizes, improving the flexibility of the device and making it suitable for various electric hoists.

[0017] 2. This electric hoist anti-fall device operates by a first electric push rod, which drives the sliding plate to slide in the movable groove. With the help of the pin and hinge, the movable plate is moved to facilitate the adjustment of the angle of the movable plate. When protecting the electric hoist, adjusting the angle between the movable plate and the L-shaped plate can clamp the I-beam and prevent it from falling. The movable plate can be adjusted and stored when not in use. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a side view of the structure of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the present invention viewed from below;

[0022] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 6 for Figure 1 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Frame; 2. First bearing; 3. First shaft; 4. Threaded block; 5. Two-way lead screw; 6. Second bearing; 7. Second shaft; 8. Drive motor; 9. Housing; 10. Worm gear; 11. Worm wheel; 12. Arc plate; 13. Connecting plate; 14. Groove; 15. Slider; 16. Slide; 17. Soft pad; 18. Handle; 19. Anti-slip sleeve; 20. Control panel; 21. Vertical plate; 22. Lighting rod; 23. Bandage; 24. Screw hole; 25. Stud; 26. Movable plate; 27. First electric push rod; 28. Movable groove; 29. ​​Slide plate; 30. L-shaped plate; 31. Second electric push rod; 32. Slot; 33. Through groove; 34. Mounting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1 to 2 This utility model provides a technical solution: an electric hoist anti-fall device, comprising a frame 1, characterized in that: a through groove 33 is provided on the top of the frame 1, and there are two sets of through grooves 33. A first bearing 2 is fixedly connected to the inner wall of each set of through grooves 33. A first rotating shaft 3 is rotatably connected to each set of first bearings 2. A bidirectional lead screw 5 is fixedly connected to the opposite end of each set of first rotating shafts 3. Threaded blocks 4 are threadedly connected to the surface of the bidirectional lead screw 5, and there are two threaded blocks 4. An arc-shaped plate 12 is fixedly connected to the bottom of each of the two threaded blocks 4. A worm gear 11 is fixedly connected to the other end of each of the two first rotating shafts 3. A mounting plate 34 is fixedly connected to one side of the frame 1, and there are two mounting plates 34. The opposite surfaces of the two mounting plates 34 are fixedly connected to... A second bearing 6 is fixedly connected, and a second shaft 7 is rotatably connected to each of the two second bearings 6. A worm gear 10 is fixedly connected to the opposite ends of the two second shafts 7. The worm gear 10 meshes with two worm wheels 11 respectively. A connecting plate 13 is fixedly connected to the inner wall of the frame 1. There are two sets of connecting plates 13. The top of each set of connecting plates 13 is provided with a groove 14. A movable plate 26 is movably connected to the groove 14 through a hinge. There are two sets of movable plates 26. A movable groove 28 is provided on one side of each set of movable plates 26. A sliding plate 29 is slidably connected to the movable groove 28. A first electric push rod 27 is movably connected to the bottom of the inner wall of the groove 14 through a pin. The other end of the first electric push rod 27 is movably connected to one side of the sliding plate 29 through a pin.

[0028] When using this device, first, grasp the handle 18 and move the device to a suitable position. Then, when it is necessary to clamp and fix the electric hoist or other cylindrical tool, place the electric hoist or other cylindrical tool inside the two sets of arc plates 12. Control the drive motor 8 to operate through the control panel 20. The drive motor 8 drives the worm gear 10 to rotate through the second rotating shaft 7. With the meshing action of the worm gear 10 and the worm wheel, the first rotating shaft 3 drives the double-acting screw 5 to rotate. With the threaded engagement of the threaded block 4 and the double-acting screw 5, the two threaded blocks 4 can be moved towards each other, which facilitates the clamping and fixing of the electric hoist or other cylindrical tool. By adjusting the position of the two threaded blocks 4 and the two arc plates 12, it can be used for electric hoists or other cylindrical tools of different sizes. After clamping, the worm wheel 11 and the worm gear 10 have a self-locking effect, which can achieve the purpose of more stable clamping by the arc plates 12.

[0029] Example 2

[0030] Please see Figures 3 to 6 This utility model provides a technical solution: an electric hoist anti-fall device, wherein the top of each of the two sets of movable plates 26 is provided with a slot 32, the bottom of the inner wall of the slot 32 is fixedly connected to a second electric push rod 31, the top of the second electric push rod 31 is fixedly connected to an L-shaped plate 30, a bandage 23 is fixedly connected to one side of the frame 1, and there are two sets of bandages 23, the surfaces of the two sets of bandages 23 are threadedly connected to studs 25, the other side of the frame 1 is provided with screw holes 24, and there are two sets of screw holes 24, the two sets of screw holes 24 are adapted to the two sets of studs 25, and the inner walls of the two sets of arc plates 12 are provided with The soft pad 17 is made of rubber. The inner walls of the two sets of through grooves 33 are provided with sliding grooves 16 on both sides. A slider 15 is slidably connected in the sliding groove 16. The slider 15 is fixedly connected to one side of the threaded block 4. The top of the frame 1 is provided with a control panel 20. The control panel 20 is electrically connected to the drive motor 8, the first electric push rod 27, and the second electric push rod 31. The two sides of the frame 1 are provided with handles 18. The surface of the handles 18 is fixedly connected with anti-slip sleeves 19. The two sides of the frame 1 are fixedly connected with upright plates 21. The opposite surfaces of the two upright plates 21 are provided with lighting rods 22.

[0031] In use, when using this electric hoist anti-fall device, adjusting the angle of the movable plate 26 according to the different sizes of the I-beam main beam controls the operation of the first electric push rod 27. With the sliding action of the slide plate 29 in the movable groove 28 and the cooperation of the pin and hinge, the movable plate 26 can be rotated and adjusted, thus improving the flexibility of the device. By adjusting the angle of the movable plate 26, it can be stored after use, thus minimizing space requirements and facilitating storage. When the electric hoist falls, adjusting the angle of the movable plate 26 clamps the two L-shaped plates 30 on both sides of the inner wall of the I-beam main beam, thus preventing a fall and protecting the electric hoist. In practical use, the L-shaped plates 30 can not only clamp the I-beam main beam, but also, through the above steps, clamp different main beam base plates in decoration and construction projects, making it widely applicable to different construction scenarios and thus improving the practicality of the device.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric hoist anti-falling device comprising a frame (1), characterized in that: The top of the frame (1) is provided with two groups of through grooves (33), the opposite inner walls of the two groups of through grooves (33) are fixedly connected with first bearings (2), the first bearings (2) are rotatably connected with first rotating shafts (3) in the two groups of first bearings (2), the opposite ends of the first rotating shafts (3) are fixedly connected with two-way screws (5), the surfaces of the two-way screws (5) are threadedly connected with threaded blocks (4), the bottoms of the two threaded blocks (4) are fixedly connected with arc-shaped plates (12), the other ends of the first rotating shafts (3) are fixedly connected with worm gears (11), one side of the frame (1) is fixedly connected with mounting plates (34), the opposite surfaces of the two mounting plates (34) are fixedly connected with second bearings (6), the second bearings (6) are rotatably connected with second rotating shafts (7) in the two second bearings (6), the opposite ends of the second rotating shafts (7) are fixedly connected with worms (10), the worms (10) are engaged with the two worm gears (11) respectively, the inner wall of the frame (1) is fixedly connected with connecting plates (13), the top of the connecting plate (13) is provided with grooves (14), the grooves (14) are movably connected with movable plates (26) through hinges, one side of the movable plate (26) is provided with a movable slot (28), the movable slot (28) is slidably connected with a sliding plate (29), the bottom of the groove (14) is movably connected with a first electric push rod (27) through a pin shaft, the other end of the first electric push rod (27) is movably connected to one side of the sliding plate (29) through a pin shaft.

2. A fall arrest device for an electric hoist according to claim 1, characterized in that: The top of the movable plate (26) is provided with a clamping groove (32), the bottom of the inner wall of the clamping groove (32) is fixedly connected with a second electric push rod (31), and the top end of the second electric push rod (31) is fixedly connected with an L-shaped plate (30).

3. The electric hoist anti-falling device according to claim 1, characterized in that: One side of the frame (1) is fixedly connected with bandages (23), the surface of the bandage (23) is threadedly connected with studs (25), the other side of the frame (1) is provided with screw holes (24), and the screw holes (24) are matched with the studs (25).

4. The electric hoist anti-falling device according to claim 1, characterized in that: The inner wall of the arc-shaped plate (12) is provided with a soft pad (17), and the soft pad (17) is made of rubber material.

5. The electric hoist anti-falling device according to claim 1, characterized in that: The two sides of the inner wall of the through groove (33) are provided with sliding grooves (16), the sliding grooves (16) are slidably connected with sliding blocks (15), and the sliding blocks (15) are fixedly connected to one side of the threaded block (4).

6. The electric hoist anti-falling device according to claim 1, characterized in that: The top of the frame (1) is provided with a control panel (20), and the control panel (20) is electrically connected with a driving motor (8), a first electric push rod (27) and a second electric push rod (31).

7. The electric hoist anti-falling device according to claim 1, characterized in that: The two sides of the frame (1) are provided with handles (18), and the surface of the handle (18) is fixedly connected with a non-slip sleeve (19).

8. The electric hoist anti-falling device according to claim 1, characterized in that: Both sides of the frame (1) are fixedly connected with vertical plates (21), and opposite surfaces of the two vertical plates (21) are provided with illuminating lamp rods (22).

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