A chain type turnover spreader

Abstract

The utility model relates to the technical field of turnover spreader, concretely is a chain type turnover spreader, the utility model discloses two fixed plates, the top fixed insertion of two fixed plates has a lifting ring, the bottom fixed mounting of two fixed plates has fixed axle to two adjacent wallboards, the circumferential outside rotation sleeve connection of fixed axle has the pivot, the circumferential outside activity of pivot is combined with chain. The utility model places chain in the middle part of pivot, drives extension rod to rotate through rotating the rotating disc, and extension rod rotation drives bidirectional screw rod to rotate, and bidirectional screw rod rotation drives two sliding boards to be close to each other, and two sliding boards move drive two limit ring plates to limit chain, and the activity space of chain is reduced, thereby prevent chain from happening to side shift when hoisting and overturning, avoid that chain displacement leads to uneven stress of hoisting, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tilting lifting equipment technology, specifically a chain tilting lifting equipment. Background Technology

[0002] A chain-type tilting sling is a specialized lifting tool used for tilting heavy objects. It mainly consists of a chain, lifting rings, connecting devices, and a tilting mechanism. Its working principle involves the flexible connection of the chain and the synergistic action of the tilting mechanism to achieve the conversion between horizontal and vertical positions or the tilting of the workpiece at any angle. In use, the sling is suspended by a crane hook, the chain is fixed to the designated position on the workpiece, and the lifting and tilting mechanism of the crane completes the safe and efficient tilting operation, effectively improving production efficiency and reducing the risks of manual operation.

[0003] Existing chain-type tilting spreaders mainly achieve the tilting function by wrapping the chain around a pivot. However, in actual lifting operations, the chain may shift axially or circumferentially along the pivot because it is not restrained. Especially during the lifting and tilting of goods, chain shifting can easily lead to uneven lifting force, which in turn causes the goods to become unstable in the tilting posture. This not only affects the efficiency of the operation, but may also cause the goods to fall due to chain slippage or derailment, posing a threat to personnel safety and equipment stability. Therefore, we propose a chain-type tilting spreader. Utility Model Content

[0004] The purpose of this utility model is to provide a chain-type tilting lifting device to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A chain-type tilting lifting device includes two fixed plates. Lifting rings are fixedly inserted into the top of the two fixed plates. Fixed shafts are fixedly installed on the two adjacent bottom wall plates of the two fixed plates. A rotating shaft is rotatably sleeved on the outer circumference of the fixed shaft. A chain is movably attached to the outer circumference of the rotating shaft. A limiting mechanism for limiting the chain is provided on the surface of the rotating shaft. An adjustment mechanism for easy chain replacement is provided at the bottom of the lifting rings.

[0007] Preferably, the limiting mechanism includes a bidirectional threaded rod disposed on the bottom wall of the two fixed plates, the two ends of the bidirectional threaded rod being rotatably connected to the adjacent wall of the two fixed plates respectively, and the threaded portions at both ends of the bidirectional threaded rod are threadedly sleeved with sliding plates.

[0008] Preferably, a limiting ring plate is fixedly connected to the end of each of the two sliding plates away from the bidirectional threaded rod. The inner ring surfaces of the two limiting ring plates are slidably sleeved on the outer ends of the rotating shaft. A rotating disk is provided at one end of the bidirectional threaded rod. An extension rod is fixedly connected to the side of the rotating disk near the bidirectional threaded rod. The end of the extension rod away from the rotating disk passes through the wall of one of the fixed plates and is fixedly connected to the end of the bidirectional threaded rod.

[0009] Preferably, a hanging ring is fixedly installed at one end of the chain, and a hook for cooperating with the hanging ring is fixedly installed at the other end of the chain.

[0010] Preferably, the adjusting mechanism includes a square hole extending through the middle of the bottom wall panel of the lifting ring, a lifting threaded rod threadedly connected to the middle of the bottom wall panel of the inner cavity of the square hole, a rotating rod fixedly connected to the top of the lifting threaded rod, a connecting block rotatably connected to the bottom of the lifting threaded rod, and first limiting rods fixedly connected to both sides of the bottom wall panel of the inner cavity of the square hole, the two first limiting rods being symmetrically designed about the lifting threaded rod.

[0011] Preferably, the bottom ends of the two first limiting rods are respectively fixedly connected to the top sides of the connecting block, and the bottom sides of the connecting block are each fixedly connected to a second limiting rod. The outer sides of the two second limiting rods are each slidably sleeved with a spring, and the inner rings of the second limiting rods and the top ends of the two springs are respectively fixedly connected to the bottom sides of the connecting block. The bottom ends of the two springs are fixedly connected to a limiting plate, and the bottom ends of the two springs are respectively fixedly connected to the top sides of the limiting plate. The bottom surface of the limiting plate is in movable contact with the surface of the chain.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of a bidirectional threaded rod, places the chain in the middle of the rotating shaft. The rotation of the rotating disk drives the extension rod to rotate, which in turn drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes two sliding plates to move closer to each other. The movement of the two sliding plates causes two limiting ring plates to limit the chain, reducing the chain's movement space. This prevents the chain from shifting laterally during hoisting and turning, avoiding uneven hoisting force caused by chain displacement, improving work efficiency, and avoiding the risk of goods falling due to chain slippage or derailment. The adjustability of the limiting ring plates can accommodate chains of different sizes, enhancing the practicality of the device.

[0014] 2. This utility model utilizes a lifting threaded rod and a spring. By rotating the rotating rod, the lifting threaded rod rotates, causing the connecting block to move downwards. This causes the limiting plate to contact the chain, and the spring contracts. The limiting plate then restricts the top of the chain on the rotating shaft. When a chain of a different specification needs to be replaced, the limiting plate is raised by rotating the rotating rod in the opposite direction, thus removing the restriction on the chain and facilitating chain replacement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall and partial structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0020] The following are the reference numerals in the attached diagram: 1. Fixed plate; 2. Fixed shaft; 3. Rotating shaft; 4. Chain; 5. Hanging ring; 6. Hook; 7. Limiting mechanism; 71. Bidirectional threaded rod; 72. Sliding plate; 73. Limiting ring plate; 74. Rotating disk; 8. Lifting ring; 9. Adjusting mechanism; 91. Square hole; 92. Lifting threaded rod; 93. First limiting rod; 94. Connecting block; 95. Second limiting rod; 96. Spring; 97. Limiting plate; 98. Rotating rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4As shown, a chain-type tilting lifting device includes two fixed plates 1. Lifting rings 8 are fixedly inserted into the top of the two fixed plates 1. Fixed shafts 2 are fixedly installed on the adjacent bottom walls of the two fixed plates 1. A rotating shaft 3 is rotatably sleeved around the circumference of the fixed shaft 2. A chain 4 is movably fitted around the circumference of the rotating shaft 3. A limiting mechanism 7 for limiting the chain 4 is provided on the surface of the rotating shaft 3. An adjusting mechanism 9 for easy replacement of the chain 4 is provided at the bottom of the lifting rings 8. The limiting mechanism 7 includes a bidirectional threaded rod 71 disposed on the bottom walls of the two fixed plates 1. The two ends of the bidirectional threaded rod 71 are respectively rotatably connected to… The two fixed plates 1 are attached to adjacent wall panels. The threaded portions of the two bidirectional threaded rod 71 are threaded with sliding plates 72. The ends of the two sliding plates 72 away from the bidirectional threaded rod 71 are fixedly connected to limiting ring plates 73. The inner ring surfaces of the two limiting ring plates 73 are slidably sleeved on the outer ends of the rotating shaft 3. A rotating disk 74 is provided at one end of the bidirectional threaded rod 71. An extension rod is fixedly connected to the side of the rotating disk 74 near the bidirectional threaded rod 71. The end of the extension rod away from the rotating disk 74 passes through the wall panel of one of the fixed plates 1 and is fixedly connected to the end of the bidirectional threaded rod 71.

[0023] In practice, by placing the chain 4 in the middle of the rotating shaft 3, the rotating disk 74 drives the extension rod to rotate, the rotation of the extension rod drives the bidirectional threaded rod 71 to rotate, the rotation of the bidirectional threaded rod 71 drives the two sliding plates 72 to move closer to each other, and the movement of the two sliding plates 72 drives the two limiting ring plates 73 to limit the chain 4, reducing the movement space of the chain 4, thereby preventing the chain 4 from shifting laterally during hoisting and flipping. The adjustability of the limiting ring plates 73 can meet the needs of using chains 4 of different sizes, enhancing the practicality of the device.

[0024] As a technical optimization of this utility model, a hanging ring 5 is fixedly installed at one end of the chain 4, and a hook 6 for use with the hanging ring 5 is fixedly installed at the other end of the chain 4.

[0025] In practice, the goods are wrapped with chain 4, and then the hanging ring 5 is installed on the hook 6. The hanging ring 8 is lifted by external lifting equipment, and the rotating shaft 3 rotates, thereby realizing the flipping of the goods.

[0026] As a technical optimization of this utility model, the adjusting mechanism 9 includes a square hole 91 that passes through the middle of the bottom wall plate of the lifting ring 8. A lifting threaded rod 92 is threadedly connected to the middle of the bottom wall plate of the inner cavity of the square hole 91. A rotating rod 98 is fixedly connected to the top of the lifting threaded rod 92, and a connecting block 94 is rotatably connected to the bottom of the lifting threaded rod 92. First limiting rods 93 are fixedly sleeved on both sides of the bottom wall plate of the inner cavity of the square hole 91. The two first limiting rods 93 are symmetrically designed about the lifting threaded rod 92, and the bottom ends of the two first limiting rods 93 are respectively... The top two sides of the connecting block 94 are fixedly connected, and the bottom two sides of the connecting block 94 are fixedly connected to the second limiting rods 95. The outer sides of the two second limiting rods 95 are slidably sleeved with springs 96, and the second limiting rods 95 are respectively located in the inner ring of the two springs 96. The top ends of the two springs 96 are fixedly connected to the bottom two sides of the connecting block 94, and the bottom ends of the two springs 96 are fixedly connected to the limiting plate 97. The bottom ends of the two springs 96 are fixedly connected to the top two sides of the limiting plate 97, and the bottom surface of the limiting plate 97 is movably in contact with the surface of the chain 4.

[0027] In practice, rotating the lever 98 drives the lifting threaded rod 92 to rotate. The lifting threaded rod 92 rotates and moves downward, causing the connecting block 94 to move downward, thereby causing the limiting plate 97 to contact the chain 4. The spring 96 retracts using its properties. The limiting plate 97 limits the top of the chain 4 on the rotating shaft 3. When it is necessary to replace the chain 4 with a different specification, rotating the lever 98 in the opposite direction drives the limiting plate 97 to rise, thereby canceling the limitation on the chain 4 and facilitating the replacement of the chain 4.

[0028] In use, this invention involves placing the chain 4 in the middle of the rotating shaft 3, wrapping the goods around the chain 4, and then installing the hanging ring 5 on the hook 6. Rotating the rotating rod 98 causes the lifting threaded rod 92 to rotate, which in turn moves the connecting block 94 downwards, causing the limiting plate 97 to contact the chain 4. The spring 96 then contracts, limiting the top of the chain 4 on the rotating shaft 3. Rotating the rotating disk 74 causes the extension rod to rotate, which in turn causes the bidirectional threaded rod 71 to rotate. The bidirectional threaded rod 71 rotates, causing the two sliding plates 72 to move closer together. The movement of the two sliding plates 72 then causes the two limiting ring plates 73 to limit the chain 4, reducing its movement space. An external lifting device is then used to lift the hanging ring 8, causing the rotating shaft 3 to rotate, thus achieving the flipping of the goods.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A chain-type tilting lifting device, comprising two fixed plates (1), characterized in that, A lifting ring (8) is fixedly inserted into the top of the two fixed plates (1). A fixed shaft (2) is fixedly installed on the two adjacent wall panels at the bottom of the two fixed plates (1). A rotating shaft (3) is rotatably sleeved on the outside of the circumference of the fixed shaft (2). A chain (4) is movably attached to the outside of the circumference of the rotating shaft (3). A limiting mechanism (7) for limiting the chain (4) is provided on the surface of the rotating shaft (3). An adjustment mechanism (9) for easy replacement of the chain (4) is provided at the bottom of the lifting ring (8).

2. The chain-type tilting lifting device according to claim 1, characterized in that, The limiting mechanism (7) includes a bidirectional threaded rod (71) disposed on the bottom wall of the two fixed plates (1). The two ends of the bidirectional threaded rod (71) are respectively rotatably connected to the adjacent wall of the two fixed plates (1). The threaded portions of the two ends of the bidirectional threaded rod (71) are threadedly sleeved with sliding plates (72).

3. A chain-type tilting lifting device according to claim 2, characterized in that, Both sliding plates (72) are fixedly connected to a limiting ring plate (73) at the end away from the bidirectional threaded rod (71). The inner ring surfaces of the two limiting ring plates (73) are respectively slidably sleeved on the outer ends of the rotating shaft (3). A rotating disk (74) is provided at one end of the bidirectional threaded rod (71). An extension rod is fixedly connected to the side of the rotating disk (74) near the bidirectional threaded rod (71). The end of the extension rod away from the rotating disk (74) passes through the wall of one of the fixed plates (1) and is fixedly connected to the end of the bidirectional threaded rod (71).

4. A chain-type tilting lifting device according to claim 1, characterized in that, One end of the chain (4) is fixedly installed with a hanging ring (5), and the other end of the chain (4) is fixedly installed with a hook (6) for use with the hanging ring (5).

5. A chain-type tilting lifting device according to claim 1, characterized in that, The adjustment mechanism (9) includes a square hole (91) that passes through the middle of the bottom wall panel of the lifting ring (8). A lifting threaded rod (92) is threadedly connected to the middle of the bottom wall panel of the inner cavity of the square hole (91). A rotating rod (98) is fixedly connected to the top of the lifting threaded rod (92). A connecting block (94) is rotatably connected to the bottom of the lifting threaded rod (92). A first limiting rod (93) is fixedly connected to both sides of the bottom wall panel of the inner cavity of the square hole (91). The two first limiting rods (93) are symmetrically designed about the lifting threaded rod (92).

6. A chain-type tilting lifting device according to claim 5, characterized in that, The bottom ends of the two first limiting rods (93) are respectively fixedly connected to the top sides of the connecting block (94). The bottom sides of the connecting block (94) are respectively fixedly connected to the second limiting rods (95). The two second limiting rods (95) are slidably sleeved with springs (96) on their outer sides. The second limiting rods (95) are respectively located in the inner ring of the two springs (96). The top ends of the two springs (96) are respectively fixedly connected to the bottom sides of the connecting block (94). The bottom ends of the two springs (96) are fixedly connected to the limiting plate (97). The bottom ends of the two springs (96) are respectively fixedly connected to the top sides of the limiting plate (97). The bottom surface of the limiting plate (97) is in movable contact with the surface of the chain (4).

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