Loading and unloading lifting appliance

Abstract

The utility model discloses a loading and unloading lifting appliance which comprises a hanging mechanism, a fixed cover is arranged at the lower part of the hanging mechanism, a clamping arm is arranged on the side surface of the fixed cover, and an opening is formed in the side wall of the fixed cover; the outer side of the lower part of the clamping arm is movably connected with a pulling arm, the upper end of the pulling arm is connected with a connecting arm, the connecting arm is connected with an extrusion mechanism, the connecting arm is pulled upwards through the extrusion mechanism, and the pulling arm is linked to pull the clamping arm to rotate inwards so that the upper part of the clamping arm extends into the fixed cover through the opening to clamp a workpiece; a downward pressing mechanism is installed on the hanging mechanism and is in butt joint with the extrusion mechanism. Therefore, after the aluminum guide rod is inserted into the fixing cover, the clamping arms can be automatically clamped into the hoisting holes, so that the aluminum guide rod can be stably and reliably hoisted. On one hand, the aluminum guide rod can be prevented from falling off, on the other hand, operators do not need to make close contact with the aluminum guide rod when the aluminum guide rod is assembled and disassembled, and accidental injuries to the operators are avoided. The whole lifting appliance is simple in structure, convenient to operate, time-saving, labor-saving, efficient and safe.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools, in particular to a loading and unloading lifting device which can be used for lifting workpieces such as anodized aluminum guide rods. Background Art

[0002] Many industries need to move heavy or dangerous workpieces by lifting. For example, in the aluminum electrolysis industry, the aluminum guide rod lifting and unloading slings used in the anode workshop have a relatively simple structure, and the operation requires close contact with the aluminum guide rod assembly to perform the hanging operation. The operator needs to stand on the double anode cast steel claw structure surface to insert the hanging device into the lifting hole at the end of the aluminum guide rod, and the lifting operation can only be carried out after the operator leaves the site. If the lifting crane hook head is lowered too high, it is difficult for the operator to insert the tool into the lifting hole, and the hook height needs to be further adjusted. For example, if the hook is lowered too low, the operator needs to support the tool and insert it into the lifting hole, which leads to high labor intensity for the operator and the risk of weightlessness and falling and injury. Therefore, the existing lifting tools have serious safety hazards in the process of loading and unloading aluminum guide rod assemblies due to unreasonable design and cumbersome operation. In addition, the entire operation is time-consuming and labor-intensive, affecting work efficiency, and therefore it is difficult to meet the actual needs of production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a loading and unloading hanger which is simple and practical, easy to operate, saves time and effort, is efficient and safe, and can easily and quickly load and unload workpieces in view of the defects of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a loading and unloading hanger, including a hanging mechanism, characterized in that: a fixed cover for inserting a workpiece is installed at the lower part of the hanging mechanism, a clamping arm that can rotate inward and outward is installed on the side of the fixed cover, and an opening is provided on the side wall of the fixed cover, and the opening is opposite to the clamping arm; a pulling arm is movably connected to the outer side of the lower part of the clamping arm, and a connecting arm is connected to the upper end of the pulling arm, and the connecting arm is connected to a squeezing mechanism, and the connecting arm is pulled upward by the squeezing mechanism, and the pulling arm is linked to pull the clamping arm to rotate inward so that the upper part of the clamping arm extends into the interior of the fixed cover through the opening to clamp the workpiece; a pressing mechanism is installed on the hanging mechanism, and the pressing mechanism is docked with the squeezing mechanism, and the pressing mechanism is pressed downward by the pressing mechanism to push the connecting arm and the pulling arm downward to make the clamping arm rotate outward to release the clamping of the workpiece.

[0005] Furthermore, the extrusion mechanism includes a pressure plate, and the pressing mechanism is connected to the pressure plate; a connecting rod is fixed to the bottom surface of the pressure plate, and a spring is sleeved on the outside of the connecting rod; a supporting plate is fixed to the bottom of the hanging mechanism, and the lower end of the connecting rod passes through the supporting plate and is connected to the connecting arm; the upper end of the spring abuts against the upper part of the connecting rod, and the lower end abuts against the supporting plate, and the connecting rod is pushed upward by the elastic force of the spring.

[0006] Furthermore, the downward pressing mechanism includes a pressure rod, one end of which is movably assembled with the hanging mechanism through a rotating shaft, and the other end is connected with a pull rope; a pressure block is arranged on the pressure rod at a position aligned with the pressure plate, and the pressure block is suspended above the pressure plate. The pressure rod is pulled downward by the pull rope to rotate the pressure block so that the pressure plate is pressed downward.

[0007] Furthermore, clamping arms and pulling arms are symmetrically arranged on both sides of the fixed cover, the upper ends of the two pulling arms are pivotally connected to the two ends of the connecting arm through the first pivot, and the two pulling arms extend downward and outward to form an "eight" shape structure, and the clamping arms on both sides are pivotally fixed to the corresponding pulling arms through the second pivot.

[0008] Furthermore, fixing ears are arranged on both sides of the openings on both sides of the fixing cover, and the inner side of the lower part of the clamping arm is pivotally fixed to the corresponding fixing ears through a fixing shaft.

[0009] Furthermore, the top end of the clamp arm is arranged as a V-shaped structure to form a hook, and after the workpiece is inserted into the fixing cover, the hook is clamped into the lifting hole of the workpiece to achieve clamping of the workpiece.

[0010] Furthermore, a guide cover is arranged at the lower end of the fixed cover. The guide cover is in the shape of a bell cover which is narrow at the top and wide at the bottom. The guide cover and the fixed cover are an integrated structure.

[0011] Furthermore, the hanging mechanism includes a lifting ring and a hanger, a fixing rod is arranged on the hanger, and the lifting ring is movably connected with the fixing rod; the supporting plate is fixed on the bottom surface of the hanger, and the pressure rod is installed in the hanger.

[0012] The utility model is particularly suitable for the maintenance and lifting of heavy aluminum guide rods and other workpieces. After the aluminum guide rod is inserted into the fixing cover, the clamp arm will automatically snap into the lifting hole, so that the aluminum guide rod can be lifted stably and reliably. On the one hand, it can prevent the aluminum guide rod from falling off, and on the other hand, when loading and unloading the aluminum guide rod, the operator does not need to come into close contact with the aluminum guide rod, thereby avoiding accidental injuries to the operator. At the same time, it can effectively avoid the safety hazard of accidental disconnection of the aluminum guide rod (aluminum welding) during loading and unloading and lifting, and the entire lifting device has a simple structure, convenient operation, time-saving and labor-saving, and high efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front cross-sectional schematic diagram of the utility model from a clamped state to a loosened state;

[0014] Figure 2 It is a side cross-sectional schematic diagram of the utility model from a clamped state to a loosened state.

[0015] In the figure, 11 is a lifting ring, 12 is a hanger, 13 is a fixing rod, 2 is a fixing cover, 21 is a guide cover, 22 is a fixing ear, 23 is a fixing shaft, 31 is a pressure rod, 32 is a pressure block, 33 is a rotating shaft, 34 is a pull rope, 41 is a pressure plate, 42 is a connecting rod, 43 is a spring, 44 is a supporting plate, 51 is a connecting arm, 52 is a pulling arm, 53 is a clamping arm, 54 is a hook, 55 is a first pivot, 56 is a second pivot, 6 is an aluminum guide rod, and 61 is a lifting hole. DETAILED DESCRIPTION

[0016] In this embodiment, refer to Figure 1 and Figure 2 The loading and unloading hanger includes a hanging mechanism, which includes a lifting ring 11 and a hanger 12. A fixing rod 13 is provided on the hanger 12. The lifting ring 11 is movably connected to the fixing rod 13 for hanging with a crane or a crane; a fixing cover 2 for inserting a workpiece (the aluminum guide rod 6 is used as an example below) is installed at the lower part of the hanger 12, and a clamping arm 53 that can rotate inward and outward is installed on the side of the fixing cover 2. An opening (not marked) is provided on the side wall of the fixing cover 2, and the opening is opposite to the clamping arm 53; a pulling arm 52 is movably connected to the outer side of the lower part of the clamping arm 53, and the pulling arm 5 2 is connected to a connecting arm 51, and the connecting arm 51 is connected to an extrusion mechanism. The connecting arm 51 is pulled upward by the extrusion mechanism, and the pulling arm 52 is linked to pull the clamping arm 53 to rotate inward, so that the upper part of the clamping arm 53 extends into the interior of the fixed cover 2 through the opening to clamp the aluminum guide rod 6, so that the aluminum guide rod 6 can be lifted; a pressing mechanism is installed on the hanger 12, and the pressing mechanism is connected to the extrusion mechanism. The pressing mechanism is pressed downward by the pressing mechanism to push the connecting arm 51 and the pulling arm 52 downward to make the clamping arm 53 rotate outward to release the clamping of the aluminum guide rod 6, so that the aluminum guide rod 6 can be removed.

[0017] The extrusion mechanism includes a pressure plate 41, and the pressing mechanism is connected to the pressure plate 41; a connecting rod 42 is fixed to the bottom of the pressure plate 41, and a spring 43 is sleeved on the outside of the connecting rod 42; a supporting plate 44 is fixed to the bottom of the hanger 12, and the lower end of the connecting rod 42 passes through the supporting plate 44 and is connected to the connecting arm 51; the upper end of the spring 43 abuts against the upper part of the connecting rod 42, and the lower end abuts on the supporting plate 44. After the aluminum guide rod 6 is inserted into the fixed cover 2 from bottom to top, the elastic force of the spring 43 pushes the connecting rod 42 to move upward, thereby driving the connecting arm 51 and the pulling arm 52 to move upward, pulling the clamping arm 53 to rotate inward to clamp the aluminum guide rod 6.

[0018] The pressing mechanism includes a pressing rod 3, one end of which is movably assembled with the hanger 12 through a rotating shaft 33, and the other end is connected with a pull rope 34; a pressing block 32 is arranged on the pressing rod 31 at a position aligned with the pressure plate 41, and the pressing block 32 is suspended above the pressure plate 41. When the aluminum guide rod 6 needs to be removed after being lifted, the pressing rod 31 is pulled downward by the pull rope 34 to make the pressing block 32 press the pressure plate 41 downward, and the pressure plate 41 and the connecting rod 42 move downward together, pushing the connecting arm 51 and the pulling arm 52 to move downward, and the pulling arm 52 pulls the clamping arm 53 to rotate outward, achieving the effect of opening outward, thereby releasing the clamping of the aluminum guide rod 6.

[0019] Clamping arms 53 and pulling arms 52 are symmetrically arranged on both sides of the fixed cover 2. The upper ends of the two pulling arms 52 are pivotally connected to the two ends of the connecting arm 51 through the first pivot 55, and the two pulling arms 52 extend downward and outward to form an "eight" shape structure. The clamping arms 53 on both sides are pivotally fixed to the corresponding pulling arms 52 through the second pivot 56, so that the aluminum guide rod 6 can be clamped from both sides at the same time.

[0020] Fixing ears 22 are provided on both sides of the openings on both sides of the fixing cover 2 . The inner side of the lower part of the clamping arm 53 is pivotally fixed to the corresponding fixing ears 22 via the fixing shaft 23 . The clamping arm 53 can rotate around the fixing shaft 23 .

[0021] The top end of the clamp arm 53 is configured as a V-shaped structure to form a hook 54 . After the aluminum guide rod 6 is inserted into the fixing cover 2 , the hook 54 is clamped into the hanging hole 61 thereof to achieve clamping of the aluminum guide rod 6 .

[0022] A guide cover 21 is provided at the lower end of the fixed cover 2. The guide cover 21 is in the shape of a bell that is narrow at the top and wide at the bottom. The guide cover 21 is an integral structure with the fixed cover 2. When the aluminum guide rod 6 needs to be inserted into the fixed cover 2, since the opening of the guide cover 21 is significantly larger than the cross-sectional size of the aluminum guide rod 6, it can be inserted more conveniently and quickly, thereby improving efficiency.

[0023] The hanger 12 is made of δ=20 steel plate, and the lifting ring 11 is made of Made of round steel; pressure rod 31 is Round steel, the pull rope 34 is a 20mm*2400mm nylon rope, and the fixing rod 13 is a M27*250mm high-strength bolt. The fixing cover 2 is made of δ=20 steel plate, with a length of 220mm and a width of 200mm, cut by plasma gas cutting technology, and fixed to the guide cover 21 by welding (full welding).

[0024] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A loading and unloading sling, comprising a hanging mechanism, characterized in that: A fixed cover for inserting the workpiece is installed at the lower part of the hanging mechanism, a clamping arm that can rotate inwards and outwards is installed on the side of the fixed cover, and an opening is provided on the side wall of the fixed cover, the opening is opposite to the clamping arm; a pulling arm is movably connected to the outer side of the lower part of the clamping arm, the upper end of the pulling arm is connected to a connecting arm, and the connecting arm is connected to an extrusion mechanism, the connecting arm is pulled upward by the extrusion mechanism, and the pulling arm is linked to pull the clamping arm to rotate inward so that the upper part of the clamping arm extends into the interior of the fixed cover through the opening to clamp the workpiece; a pressing mechanism is installed on the hanging mechanism, the pressing mechanism is connected to the extrusion mechanism, and the pressing mechanism is pressed downward by the pressing mechanism to push the connecting arm and the pulling arm downward to make the clamping arm rotate outward to release the clamping of the workpiece.

2. The loading and unloading sling according to claim 1, characterized in that: The extrusion mechanism includes a pressure plate, and the pressing mechanism is connected to the pressure plate; a connecting rod is fixed to the bottom surface of the pressure plate, and a spring is sleeved on the outside of the connecting rod; a supporting plate is fixed to the bottom of the hanging mechanism, and the lower end of the connecting rod passes through the supporting plate and is connected to the connecting arm; the upper end of the spring abuts against the upper part of the connecting rod, and the lower end abuts against the supporting plate, and the connecting rod is pushed upward by the elastic force of the spring.

3. The loading and unloading sling according to claim 2, characterized in that: The downward pressing mechanism includes a pressing rod, one end of which is movably assembled with the hanging mechanism through a rotating shaft, and the other end is connected with a pulling rope; a pressing block is arranged on the pressing rod in alignment with the pressure plate, and the pressing block is suspended above the pressure plate. The pressing rod is pulled downward by the pulling rope to rotate so that the pressing block presses the pressure plate downward.

4. The loading and unloading sling according to claim 1, characterized in that: Clamping arms and pulling arms are symmetrically arranged on both sides of the fixed cover. The upper ends of the two pulling arms are pivotally connected to the two ends of the connecting arm through the first pivot respectively, and the two pulling arms extend downward and outward to form an "eight" shape structure. The clamping arms on both sides are pivotally fixed to the corresponding pulling arms through the second pivot respectively.

5. The loading and unloading sling according to claim 4, characterized in that: Fixed ears are arranged on both sides of the openings on both sides of the fixed cover, and the inner side of the lower part of the clamping arm is pivotally connected and fixed with the corresponding fixed ears through a fixed shaft.

6. The loading and unloading sling according to claim 1, characterized in that: The top end of the clamp arm is arranged in a V-shaped structure to form a hook. After the workpiece is inserted into the fixing cover, the hook is clamped into the lifting hole of the workpiece to achieve clamping of the workpiece.

7. The loading and unloading sling according to claim 1, characterized in that: A guide cover is arranged at the lower end of the fixed cover. The guide cover is in the shape of a bell cover which is narrow at the top and wide at the bottom. The guide cover and the fixed cover are an integrated structure.

8. The loading and unloading sling according to claim 3, characterized in that: The hanging mechanism comprises a lifting ring and a hanger, a fixing rod is arranged on the hanger, the lifting ring and the fixing rod are movably connected; the supporting plate is fixed on the bottom surface of the hanger, and the pressure rod is installed in the hanger.

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