Box-type component overturning lifting appliance

Abstract

The invention relates to the technical field of lifting appliances, in particular to a box type component overturning lifting appliance which comprises a base, a stand column, a right-angle overturning frame and a self-locking limiting mechanism. Two stand columns are arranged on one side of the base in a spaced mode. A right-angle overturning frame is arranged between the two stand columns. The first corner end of the right-angle overturning frame is correspondingly hinged to the top of the corresponding stand column through a hinge shaft; the second corner end of the right-angle overturning frame is hinged with a lifting plate; a self-locking limiting mechanism used for keeping the overturning angle of the right-angle overturning frame is arranged between the right-angle bending part of the right-angle overturning frame and the base. The device is simple in structure, easy to assemble and low in production cost; a self-locking limiting mechanism used for keeping the overturning angle of the right-angle overturning frame is arranged between the right-angle bending part of the right-angle overturning frame and the base, so that the safety is high; as the whole device is not limited by power, the device can be used as a transfer trolley to transfer workpieces when overturning operation is not needed, the practicability is effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of slings, in particular to a box-type component turnover sling. Background Art

[0002] In the production process of steel structure box-shaped components, it is often necessary to turn over extra-long components. Since such extra-long components usually do not have dedicated lifting points, in actual operation, they can only be fixed with wire ropes or steel chains, and then turned 90 degrees using an overhead crane. However, this operation method has certain risks and challenges. On the one hand, extra-long components have large inertia due to their large mass and long volume. During the turning process, they may cause excessive load on the overhead crane due to inertia, and may even cause equipment failure or damage. At the same time, for operators, this also increases safety risks. If improper control is not carried out, accidents may occur. On the other hand, this turning method may also cause damage to the component itself, especially when using wire ropes or steel chains for bundling. If the bundling is improper or the force is not well controlled, it is easy to cause damage to the surface of the component, affecting the quality of the final product. A Chinese patent (publication number: CN218144175U) discloses a flip machine for an assembled building production line; a crossbeam is provided between the two long sides of the bottom plate frame of the patent, and a hydraulic cylinder is provided on the upper surface of the crossbeam, the bottom of the hydraulic cylinder is hinged to the upper surface of the crossbeam, and a hinged frame is provided on both sides of one end of the upper surface of the bottom plate frame, the bottom end of the flip frame is hinged to the hinged frame on one side of the upper surface of the bottom plate frame through a pin shaft, and the other end of the bottom of the flip frame is hinged to the hinged frame on the other side of the upper surface of the bottom plate frame through another pin shaft, the top of the output end of the hydraulic cylinder is hinged to the top edge of the flip frame, and a gear lever is provided on both sides of the bottom of the side of the flip frame; when used, it was found that the patent lacks a safety limit device, which is prone to safety accidents; in addition, the device needs to be equipped with a special hydraulic station, which means that it must be moved in a fixed area, which is not conducive to production operations.

[0003] A Chinese patent (publication number: CN216329079U) discloses a prefabricated staircase flipping device; the patent includes a base and a flipping mechanism, the flipping mechanism includes a flipping bracket, one end of the flipping bracket is fixed with a bottom plate, the other end of the flipping bracket is formed with a lifting ear and a leg corresponding to the base, the two ends of the bottom plate are hinged with a support plate fixed to the base through a rotating shaft, the support plate is provided with a pin shaft for fixing the bottom plate, the bottom plate is provided with a limit shaft corresponding to the flipping bracket, and a channel for placing the prefabricated staircase is formed between the limit shaft and the flipping bracket; the patent also lacks a safety limit device, which is not conducive to safe production. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a box-type component overturning hanger.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A box-type component turning hanger comprises a base, a column, a right-angle turning frame and a self-locking limit mechanism; two columns are arranged at intervals on one side of the base; a right-angle turning frame is arranged between the two columns; a first angle end of the right-angle turning frame is correspondingly hinged to the top of the corresponding column through a hinge shaft; a hanging plate is hinged to the second angle end of the right-angle turning frame; a self-locking limit mechanism for maintaining the turning angle of the right-angle turning frame is arranged between the right-angle bending part of the right-angle turning frame and the base.

[0006] Preferably, the self-locking limiting mechanism comprises a rack fastened to the base, and the right-angled bending portion of the right-angle flip frame is hinged with a limiting rod whose bottom can engage with the rack.

[0007] Preferably, a tooth plate capable of correspondingly engaging with the rack is hingedly connected to the bottom of the limiting rod.

[0008] Preferably, a pull rope is provided at the bottom of the limiting rod.

[0009] Preferably, a limiting block for supporting the right-angle flip frame is provided in the base.

[0010] Preferably, the right-angle flip frame comprises two right-angle plates arranged at intervals, and a plurality of connecting rods are arranged at intervals between the two right-angle plates.

[0011] Preferably, a gap is left between the connecting rod and the right-angle inner edge of the right-angle plate to allow a forklift plug plate to pass through.

[0012] Preferably, casters are provided at the four corner ends of the bottom of the base.

[0013] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: The present invention discloses a box-type component turning hoist, which has a simple structure, is easy to assemble and has a low production cost. Two columns are arranged at intervals on one side of a base. A right-angle turning frame is arranged between the two columns. When the box-type component needs to be turned over, the second corner end of the right-angle turning frame can be horizontal first, and the box-type component can be hoisted on the right-angle turning frame by a crane. Then, the hanging plate is lifted by the crane, and the hanging plate pulls the second corner end of the right-angle turning frame to deflect upward around the axis of the hinge shaft until the second corner end of the right-angle turning frame is vertical, thus completing the 90° turning operation of the box-type component. No other power is required, the structure is simple, the use cost is low, the turning operation is smooth and the safety factor is high.

[0014] The present invention further provides a self-locking limit mechanism between the right-angled bend of the right-angled bend and the base for maintaining the flipping angle of the right-angled bend. During the flipping operation, the top of the limit rod moves upward with the right-angled bend of the right-angled bend, and the bottom of the limit rod automatically droops under the action of its own gravity and moves forward with the right-angled bend of the right-angled bend. During the movement, the bottom of the limit rod can always be meshed with the rack to achieve self-locking and prevent the right-angled bend from moving in the opposite direction. After the right-angled bend is flipped 90°, the overhead crane can release the hanging plate, and the right-angled bend remains stable through the limiting action of the self-locking limit mechanism.

[0015] The present invention further provides casters at the four corner ends of the bottom of the base. Since the entire device is not limited by power, the base can be used as a transfer trolley to transfer box-type components or other workpieces when no flipping operation is required, which effectively improves practicality and further reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the state of the box-type component before flipping; Figure 3 It is a schematic diagram of the box-type component flipped 90°; Figure 4 It is a structural diagram of the self-locking limit mechanism.

[0017] In the figure: 1. base; 2. column; 3. right-angle flip frame; 3-1. right-angle plate; 3-2. connecting rod; 4. self-locking limit mechanism; 4-1. rack; 4-2. limit rod; 4-3. tooth plate; 4-4. pull rope; 5. hinge shaft; 6. hanging plate; 7. casters; 8. limit block. DETAILED DESCRIPTION

[0018] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0019] Combined with Figures 1 to 4 A box-type component turnover hanger comprises a base 1, a column 2, a right-angle turnover frame 3 and a self-locking limit mechanism 4; two columns 2 are arranged at intervals on one side of the base 1; a right-angle turnover frame 3 is arranged between the two columns 2; a first corner end of the right-angle turnover frame 3 is correspondingly hinged to the top of the corresponding column 2 through a hinge shaft 5, that is, the right-angle turnover frame 3 can be turned along the axis of the hinge shaft 5; a second corner end of the right-angle turnover frame 3 is hinged with a hanging plate 6; When it is necessary to flip the box-type component, the second corner end of the right-angle flip frame 3 can be horizontal first, and the box-type component can be hoisted on the right-angle flip frame 3 by the overhead crane. Then, the hanging plate 6 is lifted by the overhead crane. The hanging plate 6 pulls the second corner end of the right-angle flip frame 3 to deflect upward around the axis of the hinge shaft 5 until the second corner end of the right-angle flip frame 3 is vertical, thus completing the 90° flipping operation of the box-type component. No other power is required, the structure is simple, the use cost is low, the flipping operation is smooth, and the safety factor is high.

[0020] As attached Figure 1 As shown, the right-angle flip frame 3 includes two right-angle plates 3-1 arranged at intervals, and a plurality of connecting rods 3-2 are arranged at intervals between the two right-angle plates 3-1. The structure is simple and easy to assemble. A gap is left between the connecting rods 3-2 and the right-angle inner edges of the right-angle plates 3-1 to allow a forklift to pass through, that is, the box-type component can be placed on the right-angle flip frame 3 by a forklift, and the box-type component can be removed by a forklift after it is flipped 90°. The cooperation between the forklift and the overhead crane can effectively improve the working efficiency.

[0021] A self-locking limit mechanism 4 is provided between the right-angle bending portion of the right-angle turning frame 3 and the base 1 to maintain the turning angle of the right-angle turning frame 3; the self-locking limit mechanism 4 is self-locked in real time during the turning operation to prevent accidents; The self-locking limit mechanism 4 includes a rack 4-1 which is fastened to the base 1, and the right-angled bend of the right-angle flip frame 3 is hinged with a limit rod 4-2 whose bottom can mesh with the rack 4-1. That is, during the flipping operation, the top of the limit rod 4-2 moves upward with the right-angled bend of the right-angle flip frame 3, and the bottom of the limit rod 4-2 automatically droops under the action of its own gravity and moves forward with the right-angled bend of the right-angle flip frame 3. The bottom of the limit rod 4-2 can always mesh with the rack 4-1 during the movement to achieve self-locking and prevent the right-angle flip frame 3 from moving in the opposite direction. After the right-angle flip frame 3 is flipped 90°, the overhead crane can release the hanging plate 6, and the right-angle flip frame 3 remains stable through the limiting action of the self-locking limit mechanism 4. In order to further improve the reliability of the self-locking limit mechanism 4, the bottom of the limit rod 4-2 is hinged with a tooth plate 4-3 that can mesh with the rack 4-1. When the top of the limit rod 4-2 moves upward with the right-angled bend of the right-angle flip frame 3, the bottom of the limit rod 4-2 pulls the tooth plate 4-3 to move along the rack 4-1, and the tooth plate 4-3 is always attached to the rack 4-1 under the action of its own gravity, so that the tooth plate 4-3 keeps meshing with the rack 4-1 in real time, thereby preventing the friction resistance between the top of the limit rod 4-2 and the right-angle flip frame 3, which makes it impossible to ensure automatic sagging in real time, thereby causing limit failure. In order to facilitate the reverse reset of the right-angle flip frame 3, a pull rope 4-4 is provided at the bottom of the limit rod 4-2, that is, when the box-type component is removed, the right-angle flip frame 3 can be controlled to reverse and reset. The operator can first lift the second corner end of the right-angle flip frame 3, and then lift the bottom of the limit rod 4-2 through the pull rope 4-4 to make the bottom of the limit rod 4-2 separate from the rack 4-1, so that the second corner end of the right-angle flip frame 3 can be controlled to descend, so that the right-angle flip frame 3 is reversed and reset.

[0022] The base 1 is provided with a limit block 8 for supporting the right-angle flip frame 3, that is, when the second angle end of the right-angle flip frame 3 is in a horizontal state, the right-angle flip frame 3 can be supported by the limit block 8, so that a gap is left between the right-angled bend of the right-angle flip frame 3 and the column 2, preventing the right-angled bend of the right-angle flip frame 3 from interfering with the base 1 when the right-angle flip frame 3 is flipped.

[0023] In addition, casters 7 are provided at the four corner ends of the bottom of the base 1. Since the entire device is not limited by power, the base 1 can be used as a transfer cart to transfer box-type components or other workpieces when no flipping operation is required, which effectively improves practicality and further reduces production costs.

[0024] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A box-type component overturning hanger, characterized by: The invention comprises a base (1), a column (2), a right-angle flip frame (3) and a self-locking limit mechanism (4); two columns (2) are arranged at intervals on one side of the base (1); a right-angle flip frame (3) is arranged between the two columns (2); a first corner end of the right-angle flip frame (3) is correspondingly hinged to the top of the corresponding column (2) via a hinge shaft (5); a hanging plate (6) is hinged to the second corner end of the right-angle flip frame (3); and a self-locking limit mechanism (4) for maintaining the flip angle of the right-angle flip frame (3) is arranged between the right-angle bending portion of the right-angle flip frame (3) and the base (1).

2. The box-type component overturning hanger according to claim 1, characterized in that: The self-locking limiting mechanism (4) comprises a rack (4-1) which is correspondingly and firmly connected to the base (1); the right-angled bending portion of the right-angle flip frame (3) is hinged with a limiting rod (4-2) whose bottom can mesh with the rack (4-1) accordingly.

3. The box-type component overturning hanger according to claim 2, characterized in that: The bottom of the limiting rod (4-2) is hinged with a toothed plate (4-3) capable of correspondingly meshing with the toothed rack (4-1).

4. The box-type component overturning hanger according to claim 2 or 3, characterized in that: A pull rope (4-4) is provided at the bottom of the limiting rod (4-2).

5. The box-type component overturning hanger according to claim 1, characterized in that: A limiting block (8) for supporting the right-angle turning frame (3) is provided in the base (1).

6. The box-type component overturning hanger according to claim 1, characterized in that: The right-angle flip frame (3) comprises two right-angle plates (3-1) arranged at intervals, and a plurality of connecting rods (3-2) are arranged at intervals between the two right-angle plates (3-1).

7. The box-type component overturning hanger according to claim 6, characterized in that: A gap is left between the connecting rod (3-2) and the right-angle inner edge of the right-angle plate (3-1) to allow a forklift plug plate to pass through.

8. The box-type component overturning hanger according to claim 1, characterized in that: Casters (7) are provided at the four corner ends of the bottom of the base (1).

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