Adjustable multi-connected lifting appliance

Abstract

The utility model relates to the field of mechanical lifting appliances, and discloses an adjustable multi-linkage lifting appliance which comprises a main frame, four lifting beams are arranged on the outer wall of the main frame at a time, sliding rods are fixedly connected to the outer walls of the two lifting beams in the middle, the outer walls of the sliding rods are connected to the inner wall of the main frame in a sliding mode, and the outer walls of the sliding rods are connected to the inner wall of the main frame in a sliding mode. A rotating sleeve is rotatably connected to the outer wall of the sliding rod, an L-shaped connecting plate is fixedly connected to the inner wall of the rotating sleeve, a screw rod is in threaded connection with the interior of the L-shaped connecting plate, the outer wall of the screw rod is in threaded connection with the interior of the sliding rod, and a push block is fixedly connected to one end of the screw rod. According to the utility model, the rotating sleeve is firstly driven to slide on the inner outer wall of the sliding rod, so that the problem that parallel processing of multiple tasks cannot be realized is solved, and the position of the hanging beam is adjusted, so that adjustment can be carried out according to requirements, operation arrangement of multiple tasks can be carried out in a limited space, and waste of space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical lifting tools, in particular to an adjustable multi-link lifting tool. Background Technique

[0002] A multi-link lifting tool is a device used for hoisting large heavy objects. It consists of multiple lifting points and can support the heavy object at multiple points simultaneously to improve the stability and safety of hoisting. This kind of lifting tool is usually applied to scenarios such as ships, heavy equipment installation, and large component handling. The multi-link lifting tool can adjust the position and bearing capacity of the lifting points according to the shape and weight distribution of the heavy object to ensure the balance and stability of the heavy object during the hoisting process. Therefore, it is necessary to adjust the position of the lifting tool to adapt to different hoisting environments and requirements and ensure the safety and efficiency of the hoisting operation.

[0003] After retrieval, a box culvert lifting tool is disclosed in the publication number: CN217350401U, which includes a cross beam, hook legs, connecting rods, lifting lugs and an opening and closing device. Hook legs are rotatably installed at both ends of the cross beam, and both ends of the connecting rod are respectively rotatably installed on the corresponding hook legs. The middle of the connecting rod is connected by a rotating shaft, and a lifting lug and an opening and closing device are installed in the middle of the connecting rod. A lower groove plate is fixedly arranged on the cross beam directly below the opening and closing device. This utility model is a bottom-lifting tool that does not require the cooperation of a sling, which is safe and economical; there are no lifting holes in the box culvert lifting tool of this utility model, so there is no need to punch holes and no need to use a shaft to fix the box culvert, which is simple, convenient, fast, time-saving and labor-saving; there are no mechanical clips installed below the lifting beam of the box culvert lifting tool of this utility model, so there will be no slipping during hoisting in rainy and snowy weather, which is safe and reliable. The lifting tool in this application can only be used to clamp one workpiece during use. Such a setting can only process and operate one workpiece at a time, and cannot achieve multi-task parallel processing, thus reducing the overall operation efficiency and resulting in a decline in production capacity. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides an adjustable multi-link lifting tool, aiming to improve the problem that multi-task parallel processing cannot be achieved, thereby reducing the overall operation efficiency and resulting in a decline in production capacity.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An adjustable multi-link sling, including a main frame, four suspension beams are arranged on the outer wall of the main frame in sequence, sliding rods are fixedly connected to the outer walls of the two middle suspension beams, the outer walls of the sliding rods are slidably connected to the inner wall of the main frame, a rotating sleeve is rotatably connected to the outer wall of the sliding rod, an L-shaped connecting plate is fixedly connected to the inner wall of the rotating sleeve, a screw rod is threadedly connected inside the L-shaped connecting plate, the outer wall of the screw rod is threadedly connected to the inside of the sliding rod, one end of the screw rod is fixedly connected to a push block, the outer wall of the push block is slidably connected to the inner wall of the sliding rod, a clamping block is slidably connected to the inside of the sliding rod, a telescopic rod is fixedly connected to the outer wall of the clamping block, a telescopic spring is sleeved on the outer wall of the telescopic rod, and both ends of the telescopic spring are fixedly connected to the outer wall of the clamping block, and connecting components are arranged on the outer walls of the two outer suspension beams.

[0006] Through the above technical solutions, when pulling the suspension beam to make the sliding rod slide on the inner wall of the main frame, when it reaches a suitable position, drive the rotating sleeve to rotate on the outer wall of the sliding rod, drive the L-shaped connecting plate to rotate on the outer wall of the screw rod, make the screw rod move inside the sliding rod, and at the same time drive the push block to apply pressure to the clamping block, so that the clamping block moves into the main frame through the sliding rod and stretches the telescopic spring, realizing the fixation of the suspension beam. When it needs to be moved, reverse-rotate the rotating sleeve, and the telescopic spring rebounds to drive the clamping block back into the sliding rod, and then the suspension beam can be moved again, achieving the effect of adjusting the position as needed.

[0007] Further, the connecting component includes a lifting lug, and the outer wall of the lifting lug is fixedly connected to the outer wall of the suspension beam.

[0008] Through the above technical solutions, the sling can be easily connected to the lifting device through the lifting lug in the connecting component.

[0009] Further, reinforcing ribs are fixedly connected to the outer wall of the suspension beam, and extension ribs are slidably connected to the outer wall of the reinforcing ribs.

[0010] Through the above technical solutions, the strength of the suspension beam is further improved by the reinforcing ribs and the extension ribs.

[0011] Further, one end of the extension rib is fixedly connected to the outer wall of the suspension beam, and a plurality of clamping holes are formed inside the reinforcing rib.

[0012] Through the above technical solutions, the clamping holes inside the reinforcing rib are correspondingly arranged with the clamping grooves of the main frame, and when adjusting the suspension beam, the clamping rod can be accurately driven to move into the clamping holes.

[0013] Further, a fixing rod is fixedly connected to the inside of the extension rib, and a curved spring piece is sleeved on the outer wall of the fixing rod.

[0014] Through the above technical solution, the telescopic movement of the curved spring piece on the fixed rod can drive the clamping rod to move automatically.

[0015] Furthermore, two connecting plates are fixedly connected to the outer wall of the curved spring piece, and clamping rods are fixedly connected to the outer walls of the two connecting plates.

[0016] Through the above technical solution, driving the clamping rod drives the curved spring piece to contract through the connecting plate.

[0017] Furthermore, racks are fixedly connected to the inner walls of the two connecting plates, a gear is fixedly connected to the outer wall of the curved spring piece, and the gear meshes with the rack.

[0018] Through the above technical solution, the clamping rods on both sides move synchronously through the gear and the rack.

[0019] Furthermore, the outer wall of the clamping rod is slidably connected inside the reinforcing rib and the extension rib, and the outer wall of the clamping rod is slidably connected inside the clamping hole.

[0020] Through the above technical solution, the reinforcing rib and the extension rib are fixed by the clamping rod, further improving the fixation of the hanging beam.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, first drive the rotating sleeve to slide on the inner and outer walls of the sliding rod, and then cooperate with the L-shaped connecting plate, screw rod, push block, telescopic rod and telescopic spring to drive the clamping block to slide inside the sliding rod and the main frame to realize the fixation and release of the hanging beam, solving the problem of inability to perform multi-task parallel processing, achieving the adjustment of the position of the hanging beam, so that it can be adjusted according to requirements, and multiple tasks can be arranged for operation in a limited space, reducing the waste of space.

[0023] 2. In the utility model, first press the clamping rod to slide inside the clamping hole, and then cooperate with the fixed rod, curved spring piece, connecting plate, gear and rack to enable the telescopic and fixation between the reinforcing rib and the extension rib, achieving the further fixation of the adjusted hanging beam, and at the same time improving the strength between the hanging beams and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic three-dimensional structure diagram of an adjustable multi-link lifting tool proposed by the utility model;

[0025] Figure 2 is a schematic diagram of the internal structure of the main frame of an adjustable multi-link lifting tool proposed by the utility model;

[0026] Figure 3 is Figure 2 the enlarged view at A in

[0027] Figure 4 Schematic diagram of the internal structure of the reinforcing rib of an adjustable multi - link sling proposed by the present utility model;

[0028] Figure 5 Schematic diagram of one - side structure of the connecting plate of an adjustable multi - link sling proposed by the present utility model.

[0029] Legend:

[0030] 1. Main frame; 2. Suspension beam; 3. Slide bar; 4. Rotating sleeve; 5. L - shaped connecting plate; 6. Screw; 7. Push block; 8. Clamping block; 9. Telescopic rod; 10. Telescopic spring; 11. Suspension ear; 12. Reinforcing rib; 13. Extension rib; 14. Clamping hole; 15. Fixed rod; 16. Curved spring piece; 17. Connecting plate; 18. Clamping rod; 19. Gear; 20. Rack. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0032] Referring to Figure 1 - Figure 3 As shown in [figure number], an embodiment provided by the present utility model: An adjustable multi - link sling includes a main frame 1. Four suspension beams 2 are arranged on the outer wall of the main frame 1 in sequence. Slide bars 3 are fixedly connected to the outer walls of the two middle suspension beams 2. The outer walls of the slide bars 3 are slidably connected to the inner wall of the main frame 1. Rotating sleeves 4 are rotatably connected to the outer walls of the slide bars 3. L - shaped connecting plates 5 are fixedly connected to the inner walls of the rotating sleeves 4. Screws 6 are threadedly connected inside the L - shaped connecting plates 5. The outer walls of the screws 6 are threadedly connected inside the slide bars 3. One end of the screw 6 is fixedly connected to a push block 7. The outer wall of the push block 7 is slidably connected to the inner wall of the slide bar 3. Clamping blocks 8 are slidably connected inside the slide bars 3. Telescopic rods 9 are fixedly connected to the outer walls of the clamping blocks 8. Telescopic springs 10 are sleeved on the outer walls of the telescopic rods 9. Both ends of the telescopic springs 10 are fixedly connected to the outer walls of the clamping blocks 8. Connecting components are arranged on the outer walls of the two outer suspension beams 2;

[0033] Specifically, first, the position of the hanging beam 2 needs to be adjusted. The hanging beam 2 needs to be pulled so that the sliding rods 3 at both ends slide on the inner wall of the main frame 1 to accurately adjust the hanging beam 2 to the required position. Once the hanging beam 2 reaches the ideal position, the driving rotating sleeve 4 is rotated on the outer wall of the sliding rod 3 to ensure that the L-shaped connecting plate 5 can rotate smoothly on the outer wall of the screw rod 6. Due to the threaded relationship between the L-shaped connecting plate 5 and the screw rod 6, when the rotating sleeve 4 rotates, the screw rod 6 will move inside the sliding rod 3, ensuring that the pushing block 7 can apply uniform pressure to the clamping block 8. Under the pressure of the pushing block 7, the clamping block 8 will move into the main frame 1 through the sliding rod 3, and at the same time, the telescopic spring 10 will be stretched. Once the clamping block 8 enters the main frame 1, the hanging beam 2 is firmly fixed at the required position. When moving the hanging beam 2 again, only need to rotate the rotating sleeve 4 in the reverse direction. At this time, the telescopic spring 10 is no longer stressed and will rebound, driving the clamping block 8 back into the sliding rod 3, easily releasing the fixation of the hanging beam 2. Once the clamping block 8 completely returns to the inside of the sliding rod 3, the hanging beam 2 can be pulled again for the next position adjustment, achieving the effect of accurately adjusting the position of the hanging beam 2 as needed.

[0034] Refer to Figure 1 、and Figure 2 , the connecting component includes a lifting lug 11, and the outer wall of the lifting lug 11 is fixedly connected to the outer wall of the hanging beam 2;

[0035] Specifically, it is convenient to connect with an external hoist through the lifting lug 11.

[0036] Refer to Figure 1 、 Figure 4 and Figure 5 , the outer wall of the hanging beam 2 is fixedly connected with a reinforcing rib 12, the outer wall of the reinforcing rib 12 is slidably connected with an extension rib 13, one end of the extension rib 13 is fixedly connected to the outer wall of the hanging beam 2, a plurality of clamping holes 14 are formed inside the reinforcing rib 12, a fixing rod 15 is fixedly connected inside the extension rib 13, a curved surface spring piece 16 is sleeved on the outer wall of the fixing rod 15, two connecting plates 17 are fixedly connected to the outer wall of the curved surface spring piece 16, clamping rods 18 are fixedly connected to the outer walls of the two connecting plates 17, racks 20 are fixedly connected to the inner walls of the two connecting plates 17, a gear 19 is fixedly connected to the outer wall of the curved surface spring piece 16, the gear 19 meshes with the rack 20, the outer wall of the clamping rod 18 is slidably connected inside the reinforcing rib 12 and the extension rib 13, and the outer wall of the clamping rod 18 is slidably connected inside the clamping hole 14;

[0037] Specifically, first, when the clamping rod 18 is pressed, the clamping rod 18 will smoothly slide inside the clamping hole 14, not only guiding the connecting plate 17 and the rack 20 to move together, but also further causing the gear 19 to start rotating through the precise meshing of the rack 20 and the gear 19, achieving the synchronous movement of the clamping rods 18 on both sides, ensuring the smoothness and consistency of the operation. As the connecting plate 17 moves, the curved spring piece 16 begins to contract. When the clamping rod 18 smoothly slides into the extension rib 13, the hanging beam 2 can start to move. After the hanging beam 2 moves to the predetermined position, the clamping rod 18 will automatically move back into the clamping hole 14 under the resilience of the curved spring piece 16, further enhancing the fixing effect of the hanging beam 2, making it more stable and reliable. At the same time, it also helps to improve the overall strength of the hanging beam 2, making it more durable in daily use.

[0038] Working principle: When the adjustable multi-link lifting tool needs to be used, first pull the hanging beam 2 so that the sliding rods 3 at both ends of the hanging beam 2 slide on the inner wall of the main frame 1. When the hanging beam 2 moves to the appropriate position, drive the rotating sleeve 4 to rotate on the outer wall of the sliding rod 3, thereby driving the L-shaped connecting plate 5 to rotate on the outer wall of the screw rod 6. Due to the threaded relationship between the L-shaped connecting plate 5 and the screw rod 6, the screw rod 6 moves inside the sliding rod 3, and at the same time drives the push block 7 to apply pressure to the clamping block 8, causing the clamping block 8 to move through the sliding rod 3 into the main frame 1, and at the same time stretching the telescopic spring 10, thus achieving the fixation of the hanging beam 2. When it is necessary to move again, only need to rotate the rotating sleeve 4 in the reverse direction. At this time, the telescopic spring 10 is no longer stressed and rebounds, thereby driving the clamping block 8 back into the sliding rod 3, and then the hanging beam 2 can be moved again, achieving the effect of adjusting the position of the hanging beam 2 as needed. When moving the hanging beam 2, first press the clamping rod 18 to slide inside the clamping hole 14, thereby driving the connecting plate 17 and the rack 20 to move. Due to the meshing of the rack 20 and the gear 19, the movement of the rack 20 drives the gear 19 to rotate, and then drives the clamping rod 18 on the other side to move synchronously. At the same time, the movement of the connecting plate 17 causes the curved spring piece 16 to contract. When the clamping rod 18 moves into the extension rib 13, the hanging beam 2 can be operated to move. When the hanging beam 2 moves to the appropriate position, the clamping rod 18 will move into the clamping hole 14 through the resilience of the curved spring piece 16, realizing the further fixation of the hanging beam 2, and at the same time enhancing the strength of the hanging beam 2, making it more durable.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable multi-link sling, comprising a main frame (1), characterized in that: The outer wall of the main frame (1) is provided with four suspension beams (2) at a time, the outer walls of the two middle suspension beams (2) are fixedly connected with sliding rods (3), the outer walls of the sliding rods (3) are slidably connected to the inner wall of the main frame (1), the outer wall of the sliding rod (3) is rotatably connected with a rotating sleeve (4), the inner wall of the rotating sleeve (4) is fixedly connected with an L-shaped connecting plate (5), the inner thread of the L-shaped connecting plate (5) is connected with a screw rod (6), the outer wall of the screw rod (6) is threadedly connected to the inside of the sliding rod (3), one end of the screw rod (6) is fixedly connected with a push block (7), the outer wall of the push block (7) is slidably connected to the inner wall of the sliding rod (3), the inside of the sliding rod (3) is slidably connected with a clamping block (8), the outer wall of the clamping block (8) is fixedly connected with a telescopic rod (9), the outer wall of the telescopic rod (9) is provided with a telescopic spring (10), both ends of the telescopic spring (10) are fixedly connected to the outer wall of the clamping block (8), and the outer walls of the two outer suspension beams (2) are provided with connecting components.

2. The adjustable multi-link sling according to claim 1, characterized in that: The connection assembly comprises a lifting lug (11), the outer wall of the lifting lug (11) being fixedly connected to the outer wall of the lifting beam (2).

3. The adjustable multi-link sling according to claim 1, characterized in that: The outer wall of the suspension beam (2) is fixedly connected to a reinforcing rib (12), and the outer wall of the reinforcing rib (12) is slidably connected to an extension rib (13).

4. The adjustable multi-link sling according to claim 3, characterized in that: One end of the extension rib (13) is fixedly connected to the outer wall of the suspension beam (2), and a plurality of clamping holes (14) are provided inside the reinforcement rib (12).

5. The adjustable multi-link sling according to claim 4, characterized in that: A fixing rod (15) is fixedly connected to the interior of the extension rib (13), and a curved spring sheet (16) is sleeved on the outer wall of the fixing rod (15).

6. The adjustable multi-link sling according to claim 5, characterized in that: The outer wall of the curved spring sheet (16) is fixedly connected to two connecting plates (17), and the outer walls of the two connecting plates (17) are both fixedly connected to a clamping rod (18).

7. The adjustable multi-link sling according to claim 6, characterized in that: The inner walls of the two connecting plates (17) are fixedly connected with racks (20), the outer wall of the curved spring sheet (16) is fixedly connected with a gear (19), and the gear (19) is meshed with the racks (20).

8. The adjustable multi-link sling according to claim 6, characterized in that: The outer wall of the clamping rod (18) is slidably connected to the inside of the reinforcing rib (12) and the extending rib (13), and the outer wall of the clamping rod (18) is slidably connected to the inside of the clamping hole (14).

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