Multi-head lifting appliance for single-beam and double-beam crane

Abstract

The utility model discloses a multi-head type lifting appliance for a single-beam and double-beam crane, which relates to the technical field of lifting appliances and comprises a connecting frame, a fixed part of a second electric telescopic rod is fixedly connected in the connecting frame, and one end of a movable part of the second electric telescopic rod is fixedly connected with a fixed rod. A second connecting block is fixedly connected to the lower end of the fixing rod, a limiting plate is arranged at the upper end of the connecting frame, and a traction head is fixedly connected to the upper end of the limiting plate. The second electric telescopic rod and the extension rod are arranged to enable the clamping block to clamp an object, the supporting rod and the first electric telescopic rod are arranged to support the fixing rod, and the supporting spring, the movable groove, the supporting block and the second fixing screw rod are arranged to support the lower end of the object. And by arranging an adjusting screw rod, a top block, a first connecting block and a first fixing screw rod, the position of the clamping block is conveniently adjusted, and the clamping block is disassembled and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a multi-head sling for single-beam and double-beam cranes. Background Art

[0002] Single-beam cranes and double-beam cranes are common types of cranes. Single-beam cranes refer to cranes with only one main beam across the cargo lifting area. This type of crane is usually suspended on the top beam of the factory building and uses a sling to clamp the cargo for transportation. Double-beam cranes refer to cranes with two parallel main beams. Usually a sling is set between the two beams for lifting cargo. A sling is a device used for lifting and handling. It is combined with multiple hooks or arms to lift or transport multiple cargoes at the same time.

[0003] At present, the multi-head slings for single-beam and double-beam cranes in the prior art are usually connectable to single-beam and double-beam cranes. When in use, since the clamping position of the sling is at the side of the object, when the object is heavy, it is easy to slip during transportation, and after clamping for a long time, the friction at the clamping part of the sling is smooth, and the chance of slipping increases. There is a problem that the sling is easy to slip during the clamping process, and when in use, the position of the sling connection structure needs to be adjusted so as to connect the single-beam and double-beam cranes accordingly, and it cannot be adjusted conveniently, which makes the operation time longer, and there is a problem that the sling connection structure cannot be conveniently adjusted. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-head spreader for a single-beam or double-beam crane, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: comprising a connecting frame, the interior of the connecting frame is fixedly connected to the fixed part of the second electric telescopic rod, one end of the movable part of the second electric telescopic rod is fixedly connected to the fixed rod, the lower end of the fixed rod is fixedly connected to the second connecting block, the upper end of the connecting frame is provided with a limiting plate, and the upper end of the limiting plate is fixedly connected to the traction head;

[0008] The fixing rod is internally slidably connected with a first connecting block, the first connecting block is internally slidably connected with a clamping block, a supporting rod is provided at the lower end of the fixing rod, the lower end of the supporting rod is fixedly connected with a connecting rod, a movable groove is provided inside the connecting rod, a supporting block is slidably connected with one side of the movable groove, a supporting spring is fixedly connected with one side of the supporting block, a movable groove is fixedly connected with a second fixing screw on one side of the connecting rod, and a supporting block is threadedly connected with one side of the second fixing screw;

[0009] A slide groove is provided at the upper end of the connecting frame, a slider is slidably connected to one side of the slide groove, a limiting plate is fixedly connected to the upper end of the slider, a connecting screw is threadedly connected to one side of the limiting plate, a connecting hole is provided at the upper end of the connecting frame, a connecting screw is threadedly connected to one side of the connecting hole, and a fixing bolt is threadedly connected to one side of the traction head.

[0010] Optionally, one side of the fixed rod is in contact with the connecting frame, the lower end of the fixed rod is fixedly connected to the fixed part of the first electric telescopic rod, one end of the movable part of the first electric telescopic rod is fixedly connected to the connecting rod, and one side of the support rod is in contact with the second connecting block.

[0011] Optionally, one side of the second connecting block is threadedly connected to an adjusting screw, one side of the adjusting screw is threadedly connected to a top block, one end of the top block supports the clamping block, one side of the top block is slidably connected to the first connecting block, and one side of the top block is slidably connected to the second connecting block.

[0012] Optionally, one side of the second connecting block is threadedly connected to the first fixing screw, one side of the first fixing screw is threadedly connected to the first connecting block, the clamping block extends from one side of the first connecting block, and the upper end of the connecting rod contacts the second connecting block.

[0013] Optionally, the slider is semicircular, the corresponding two sliders can be combined, the shape of the slide groove is T-shaped, and there is a connecting hole at each end position of the slide groove, and the slide groove fits closely with the two combined sliders.

[0014] Optionally, the width of the limiting plate is greater than the width of the slide slot, the fixing bolts connect and fix the two docked traction heads to each other, the ends of the slide slot are respectively located at the four corners of the connecting frame, and the connecting screw passes through the limiting plate.

[0015] Three beneficial effects

[0016] The utility model provides a multi-head lifting device for a single-beam or double-beam crane, which has the following beneficial effects:

[0017] 1. The multi-head spreader for the single- and double-beam crane is provided with a second electric telescopic rod and an extension rod to enable the clamping block to clamp the object, the support rod and the first electric telescopic rod are provided to support the fixed rod, the support spring, the movable groove, the support block, and the second fixed screw are provided to support the lower end of the object, and the adjustment screw, the top block, the first connecting block, and the first fixed screw are provided to facilitate the adjustment of the position of the clamping block and the removal and replacement.

[0018] 2. The multi-head spreader for the single- and double-beam crane is provided with a slide groove to facilitate the movement of the traction head and the connection with the single- and double-beam crane. The traction head is fixed after being moved to the position by providing a slider, a limiting plate, a connecting screw and a connecting hole to facilitate the connection. The fixing bolts are provided to connect the spreader to the single- and double-beam crane, so that the two traction heads can be combined and separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in front view section;

[0021] Figure 3 It is a structural schematic diagram of the left side section 1 of the utility model;

[0022] Figure 4 For this utility model Figure 3 A schematic diagram of the structure with a partial enlargement at the center;

[0023] Figure 5 It is a structural schematic diagram of the second left-side cross-section of the utility model;

[0024] Figure 6 This is a structural schematic diagram of the third section from the left side of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the utility model in top view.

[0026] In the figure: 1, connecting frame; 2, fixing bolt; 3, traction head; 4, fixing rod; 5, first fixing screw; 6, clamping block; 7, first connecting block; 8, support rod; 9, first electric telescopic rod; 10, connecting rod; 11, support block; 12, second fixing screw; 13, second connecting block; 14, top block; 15, adjustment screw; 16, movable groove; 17, support spring; 18, second electric telescopic rod; 19, extension rod; 20, connecting hole; 21, slide groove; 22, slider; 23, limiting plate; 24, connecting screw. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] See also Figures 1 to 7 The utility model provides a technical solution: a multi-head lifting device for a single-beam or double-beam crane, comprising a connecting frame 1, a fixing portion of a second electric telescopic rod 18 is fixedly connected inside the connecting frame 1, one end of a movable portion of the second electric telescopic rod 18 is fixedly connected to a fixing rod 4, one side of the fixing rod 4 is in contact with the connecting frame 1, a fixing portion of a first electric telescopic rod 9 is fixedly connected to the lower end of the fixing rod 4, a second connecting block 13 is fixedly connected to the lower end of the fixing rod 4, a first fixing screw 5 is threadedly connected to one side of the second connecting block 13, and a limiting plate 23 is provided at the upper end of the connecting frame 1. The upper end of the limiting plate 23 is fixedly connected with the traction head 3, the interior of the fixed rod 4 is slidably connected with the first connecting block 7, one side of the first fixed screw 5 is threadedly connected with the first connecting block 7, the interior of the first connecting block 7 is slidably connected with the clamping block 6, and the clamping block 6 extends one side of the first connecting block 7, and the lower end of the fixed rod 4 is provided with a support rod 8, one side of the support rod 8 is in contact with the second connecting block 13, one side of the second connecting block 13 is threadedly connected with the adjusting screw 15, one side of the adjusting screw 15 is threadedly connected with the top block 14, and one end of the top block 14 supports the clamping block 6 , one side of the top block 14 is slidably connected to the first connecting block 7, one side of the top block 14 is slidably connected to the second connecting block 13, the lower end of the support rod 8 is fixedly connected to the connecting rod 10, one end of the movable part of the first electric telescopic rod 9 is fixedly connected to the connecting rod 10, the upper end of the connecting rod 10 is in contact with the second connecting block 13, a movable groove 16 is provided inside the connecting rod 10, one side of the movable groove 16 is slidably connected to the support block 11, one side of the support block 11 is fixedly connected to the support spring 17, one side of the support spring 17 is fixedly connected to the movable groove 16, one side of the connecting rod 10 A second fixed screw 12 is threadedly connected, and a support block 11 is threadedly connected to one side of the second fixed screw 12. By arranging a second electric telescopic rod 18 and an extension rod 19, the clamping block 6 clamps the object. By arranging a support rod 8 and a first electric telescopic rod 9, the fixed rod 4 is supported. By arranging a support spring 17, a movable groove 16, a support block 11, and a second fixed screw 12, the lower end of the object is supported. By arranging an adjusting screw 15, a top block 14, a first connecting block 7, and a first fixed screw 5, the position of the clamping block 6 is easily adjusted, and it can be removed and replaced.

[0030] When in use, after the sling is connected to the crane, the sling is made to correspond to the object, the second electric telescopic rod 18 is started, the extension rod 19 is pushed out of the connecting frame 1, thereby driving the second connecting block 13 to move, the sling is put on the object, and the second electric telescopic rod 18 is retracted to retract the second connecting block 13, so that the clamping block 6 contacts the object and clamps the object, and then the first electric telescopic rod 9 is started to push the fixing rod 4 upward, so that the object clamped by the clamping block 6 is driven to rise, and then the second fixing screw 12 is removed, and the supporting block 11 is supported by the supporting spring 17. The support block 11 is pushed out of the movable groove 16, thereby moving the support block 11 to the lower end of the object, and then the first electric telescopic rod 9 is recovered, so that the object contacts the support block 11, and the support block 11 supports the object. When used for a long time, the clamping block 6 is worn, and the adjusting screw 15 is rotated to move the ejecting block 14, so that the clamping block 6 is moved for reuse. When the clamping block 6 is consumed a lot, the adjusting screw 15 and the first fixed screw 5 are rotated to remove the first connecting block 7 and the second connecting block 13, and the clamping block 6 is replaced, thereby achieving the purpose of reducing slipping during the clamping process of the sling.

[0031] Example 2

[0032] See also Figures 1 to 7The utility model provides a technical solution: a multi-head spreader for a single- and double-beam crane, comprising a connecting frame 1, the interior of the connecting frame 1 is fixedly connected to a fixed portion of a second electric telescopic rod 18, one end of the movable portion of the second electric telescopic rod 18 is fixedly connected to a fixed rod 4, the lower end of the fixed rod 4 is fixedly connected to a second connecting block 13, the upper end of the connecting frame 1 is provided with a limiting plate 23, the upper end of the limiting plate 23 is fixedly connected to a traction head 3, a slide groove 21 is provided at the upper end of the connecting frame 1, the shape of the slide groove 21 is T-shaped, a slider 22 is slidably connected to one side of the slide groove 21, the slider 22 is semicircular, and the corresponding two sliders 22 can be combined, the slide groove 21 is closely matched with the two combined sliders 22, the ends of the slide groove 21 are respectively located at the four corners of the connecting frame 1, the upper end of the slider 22 is fixedly connected to a limiting plate 23, and the limiting The width of the plate 23 should be greater than the width of the slide slot 21. A connecting screw 24 is threadedly connected to one side of the limiting plate 23. The connecting screw 24 penetrates the limiting plate 23. A connecting hole 20 is opened at the upper end of the connecting frame 1. There is a connecting hole 20 at the end position of the slide slot 21 respectively. A connecting screw 24 is threadedly connected to one side of the connecting hole 20. A fixing bolt 2 is threadedly connected to one side of the traction head 3. The fixing bolt 2 connects and fixes the two butted traction heads 3 to each other. By setting the slide slot 21, it is convenient for the traction head 3 to move and connect with the single- or double-beam crane. By setting the slider 22, the limiting plate 23, the connecting screw 24, and the connecting hole 20, the traction head 3 is fixed after being moved to the position for easy connection. By setting the fixing bolt 2, when the hoist is connected to the single- or double-beam crane, the two traction heads 3 can be combined and separated.

[0033] When in use, when connecting with a single-beam crane, the two corresponding sliders 22 are docked, so that the two traction heads 3 are in contact, and then the two traction heads 3 are connected by the fixing bolts 2, so that the slider 22 moves in the slide groove 21 until it moves to the middle position of the connecting frame 1, and then the connecting screw 24 is rotated to connect it with the connecting hole 20, and the limiting plate 23 is restricted to connect the sling with the single-beam crane. When connecting with a double-beam crane, the two corresponding sliders 22 are separated, so that they move in the slide groove 21 and move to the four corners of the connecting frame 1, so that the limiting plate 23 corresponds to the connecting holes 20 at the four corners of the connecting frame 1, and the connecting screw 24 is connected again, so that the traction head 3 is fixed at the four corners of the connecting frame 1, so that the sling is connected to the double-beam crane, thereby achieving the purpose of conveniently adjusting the sling connection structure.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-head sling for a single-beam or double-beam crane, comprising a connecting frame (1), characterized in that: The interior of the connecting frame (1) is fixedly connected to a fixed portion of a second electric telescopic rod (18); one end of the movable portion of the second electric telescopic rod (18) is fixedly connected to a fixed rod (4); the lower end of the fixed rod (4) is fixedly connected to a second connecting block (13); a limiting plate (23) is provided at the upper end of the connecting frame (1); the upper end of the limiting plate (23) is fixedly connected to a traction head (3); The fixing rod (4) is internally slidably connected to a first connecting block (7), the first connecting block (7) is internally slidably connected to a clamping block (6), a support rod (8) is provided at the lower end of the fixing rod (4), the lower end of the support rod (8) is fixedly connected to a connecting rod (10), a movable groove (16) is provided inside the connecting rod (10), one side of the movable groove (16) is slidably connected to a supporting block (11), one side of the supporting block (11) is fixedly connected to a supporting spring (17), one side of the supporting spring (17) is fixedly connected to the movable groove (16), one side of the connecting rod (10) is threadedly connected to a second fixing screw (12), one side of the second fixing screw (12) is threadedly connected to the supporting block (11); The upper end of the connecting frame (1) is provided with a slide groove (21), one side of the slide groove (21) is slidably connected to a slider (22), the upper end of the slider (22) is fixedly connected to a limiting plate (23), one side of the limiting plate (23) is threadedly connected to a connecting screw (24), the upper end of the connecting frame (1) is provided with a connecting hole (20), one side of the connecting hole (20) is threadedly connected to a connecting screw (24), and one side of the traction head (3) is threadedly connected to a fixing bolt (2).

2. A multi-head spreader for a single-beam or double-beam crane according to claim 1, characterized in that: One side of the fixing rod (4) is in contact with the connecting frame (1), the lower end of the fixing rod (4) is fixedly connected to the fixing portion of the first electric telescopic rod (9), one end of the movable portion of the first electric telescopic rod (9) is fixedly connected to the connecting rod (10), and one side of the supporting rod (8) is in contact with the second connecting block (13).

3. The multi-head spreader for a single-beam or double-beam crane according to claim 1, characterized in that: One side of the second connecting block (13) is threadedly connected to an adjusting screw (15), one side of the adjusting screw (15) is threadedly connected to a top block (14), one end of the top block (14) supports the clamping block (6), one side of the top block (14) is slidably connected to the first connecting block (7), and one side of the top block (14) is slidably connected to the second connecting block (13).

4. The multi-head spreader for a single-beam or double-beam crane according to claim 3, characterized in that: One side of the second connecting block (13) is threadedly connected to the first fixing screw (5), one side of the first fixing screw (5) is threadedly connected to the first connecting block (7), the clamping block (6) extends from one side of the first connecting block (7), and the upper end of the connecting rod (10) is in contact with the second connecting block (13).

5. The multi-head spreader for single-beam and double-beam cranes according to claim 1, characterized in that: The slider (22) is semicircular, and two corresponding sliders (22) can be combined. The shape of the slide groove (21) is T-shaped, and there is a connecting hole (20) at each end position of the slide groove (21). The slide groove (21) is closely matched with the two combined sliders (22).

6. The multi-head spreader for single-beam and double-beam cranes according to claim 1, characterized in that: The width of the limiting plate (23) is greater than the width of the slide groove (21); the fixing bolt (2) connects and fixes the two butted traction heads (3) to each other; the ends of the slide groove (21) are respectively located at the four corners of the connecting frame (1); and the connecting screw (24) passes through the limiting plate (23).

Images