Casting transfer lifting appliance

Abstract

The utility model relates to a casting transfer lifting appliance which comprises a bottom frame, a movable guardrail is hinged to one side edge of the bottom frame, and fixed guardrails are fixed to the other side edges of the bottom frame. The two sides of the upper end of each movable guardrail are each provided with a lock catch piece matched with the corresponding adjacent fixed guardrail. A plurality of buffer cushion blocks are arranged on the bottom surface of the bottom frame, a hanging bracket is fixed on the bottom frame, and a hanging hook positioning mechanism is arranged on a cross rod at the upper end of the hanging bracket. The lifting appliance is compact in structure, the casting can be conveniently transferred, and the transferring safety can be improved.

Description

Technical Field

[0001] The utility model relates to a casting transfer sling. Background Art

[0002] After castings are produced and formed, especially small castings, they often need to be transported to the desired location for subsequent processing. Existing hoists used for transporting small castings typically consist of a base frame and a hanger. Because the base frame lacks side guardrails, there is a risk of the castings gradually falling during transport. Furthermore, when hooks are connected, if the castings are evenly placed on the base frame, the hooks can easily shift, causing the hoist to deflect or tilt, resulting in a low safety risk. Utility Model Content

[0003] The utility model aims to provide a casting transfer sling with a compact structure, which not only facilitates the transfer of castings but also improves the safety during transfer.

[0004] The technical solution of the utility model is: a casting transfer hanger, including a bottom frame, one side of the bottom frame is hinged with a movable guardrail, and the other side edges of the bottom frame are fixed with fixed guardrails; both sides of the upper end of the movable guardrail are provided with locking parts that cooperate with the adjacent fixed guardrails; a plurality of buffer pads are provided on the bottom surface of the bottom frame, a hanger is fixed on the bottom frame, and a hook positioning mechanism is provided on the cross bar at the upper end of the hanger.

[0005] Furthermore, the bottom frame is hexagonal or octagonal, and is formed by welding a plurality of steel bars, and a plurality of transverse bars and longitudinal bars are welded inside the bottom frame.

[0006] Furthermore, the movable guardrail and the fixed guardrail are trapezoidal and are both composed of multiple steel bars welded together, and form obtuse angles with the bottom frame respectively.

[0007] Furthermore, the hanger includes two side frames in an eight-shaped shape, the lower ends of the two side frames are welded to the bottom frame, and a cross bar is welded between the upper ends of the two side frames.

[0008] Furthermore, the hook positioning mechanism includes a limit plate, a positioning groove is provided in the middle of the limit plate, and a pair of guide rods fixedly connected to the bottom surface of the cross bar are respectively passed through the two sides of the limit plate, and a compression spring is sleeved on the guide rod, the upper end of which abuts against the bottom surface of the limit plate.

[0009] Furthermore, the lower end of the compression spring abuts against a flange provided at the lower end of the guide rod, or the lower end of the compression spring is fixedly connected to the lower end of the guide rod.

[0010] Furthermore, an arc-shaped rod is welded to the lower side of the limiting plate located at the positioning groove, and a pull ring is fixed to the lower end of the arc-shaped rod.

[0011] Furthermore, the buffer pads are all rubber pads; and the locking parts are spring latches.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The spreader's compact structure not only facilitates the transfer of castings, but also prevents castings from falling due to shaking during transfer by installing movable and fixed guardrails on the sides of the bottom frame. Furthermore, the spreader's hook positioning mechanism facilitates the limiting and positioning of the hook, preventing hook deviation and the spreader from tilting, further improving the spreader's safety during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 It is a top view schematic diagram of the utility model;

[0017] Figure 4 For the utility model Figure 1 A magnified view of area A;

[0018] Figure 5 For the utility model Figure 4 Schematic diagram from above;

[0019] Figure 6 For the utility model Figure 5 BB cross-sectional view;

[0020] In the figure: 10 - bottom frame 11 - movable guardrail 12 - fixed guardrail 13 - locking member 14 - buffer pad 20 - hanger 21 - side frame 22 - cross bar 30 - hook positioning mechanism 31 - limit plate 311 - positioning groove 32 - guide rod 33 - compression spring 34 - arc rod 35 - pull ring. DETAILED DESCRIPTION

[0021] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0022] refer to Figures 1 to 6

[0023] A casting transfer sling includes a base frame 10, one side of the base frame is hinged with a movable guardrail 11, and the other sides of the base frame are fixed with fixed guardrails 12. Both sides of the upper end of the movable guardrail are provided with locking parts 13 that cooperate with the adjacent fixed guardrails. The movable guardrail is used to facilitate the removal of smaller and lighter castings, and the combination of the movable guardrail and the fixed guardrail can better prevent the castings from rolling down. A number of buffer pads 14 are provided on the bottom surface of the base frame to reduce the damage caused to the ground when the sling falls to the ground after lifting. A hanger 20 is fixed on the base frame, and a hook positioning mechanism 30 is provided on the cross bar 22 at the upper end of the hanger. The hook positioning mechanism prevents the hook from shifting or swinging.

[0024] In this embodiment, to reduce costs and facilitate local material sourcing, the base frame is hexagonal or octagonal and is constructed from multiple welded steel bars. Several horizontal and vertical bars are welded inside the base frame, and the gaps between them also help prevent the casting from rolling. The movable and fixed guardrails are trapezoidal and are both welded from multiple steel bars, forming obtuse angles with the base frame.

[0025] In this embodiment, the hanger includes two side frames 21 that cooperate to form an eight-shaped shape, the lower ends of the two side frames are welded to the bottom frame, and a cross bar 22 is welded between the upper ends of the two side frames. The side frames and the cross bar are both made of steel bars.

[0026] In this embodiment, to better position the hook, the hook positioning mechanism includes a limit plate 31. A positioning slot 311 is provided in the middle of the limit plate. When the hook is attached to the crossbar, the lower portion of the hook sinks into the slot, not only securing the hook but also preventing it from deflecting on the crossbar. A pair of guide rods 32, fixedly connected to the bottom of the crossbar, are threaded through each side of the limit plate. These guide rods are fitted with compression springs 33, the upper ends of which abut against the bottom of the limit plate. This allows the limit plate to automatically rise and reset under the force of the compression springs, securing it to the bottom of the hook.

[0027] In this embodiment, in order to allow the limit plate to rise and reset better, the lower end of the compression spring abuts against the flange provided at the lower end of the guide rod, or the lower end of the compression spring is fixedly connected to the lower end of the guide rod.

[0028] In this embodiment, in order to facilitate pulling down the limit plate when the hook is buckled on the cross bar, an arc rod 34 is welded to the lower side of the limit plate located at the lower side of the positioning groove, and a pull ring 35 is fixed to the lower end of the arc rod.

[0029] In this embodiment, the buffer pads are all rubber pads; and the locking parts are spring latches.

[0030] During use, several castings are placed in a hanging basket consisting of a base frame, fixed guardrails, and movable guardrails. After the limit plate is pulled down, the hook is buckled into the crossbar, and the limit plate is raised and reset to complete the hook limit. The entire hoist is then lifted and moved to the desired location using a lifting device such as an electric hoist. Small castings can be removed manually or with lifting equipment by opening the movable guardrails. Heavier castings can be removed directly using lifting equipment.

[0031] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0032] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0033] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0034] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A casting transfer sling, comprising a bottom frame, characterized in that: A movable guardrail is hinged on one side of the bottom frame, and fixed guardrails are fixed to the other sides of the bottom frame; locking parts that cooperate with adjacent fixed guardrails are provided on both sides of the upper end of the movable guardrail; a plurality of buffer pads are provided on the bottom surface of the bottom frame, and a hanger is fixed on the bottom frame, and a hook positioning mechanism is provided on the cross bar at the upper end of the hanger.

2. The casting transfer sling according to claim 1, characterized in that: The bottom frame is hexagonal or octagonal and is formed by welding a plurality of steel bars. A plurality of transverse bars and longitudinal bars are welded inside the bottom frame.

3. The casting transfer sling according to claim 1 or 2, characterized in that: The movable guardrail and the fixed guardrail are trapezoidal and are both formed by welding a plurality of steel bars, and form obtuse angles with the bottom frame respectively.

4. The casting transfer sling according to claim 1, characterized in that: The hanger comprises two side frames in an eight-shaped shape, the lower ends of the two side frames are welded to the bottom frame, and a cross bar is welded between the upper ends of the two side frames.

5. The casting transfer sling according to claim 1, 2 or 4, characterized in that: The hook positioning mechanism includes a limit plate, a positioning groove is provided in the middle of the limit plate, and a pair of guide rods fixedly connected to the bottom surface of the cross bar are respectively passed through the two sides of the limit plate, and a compression spring is sleeved on the guide rod, the upper end of which abuts against the bottom surface of the limit plate.

6. The casting transfer sling according to claim 5, characterized in that: The lower end of the compression spring abuts against a flange arranged at the lower end of the guide rod, or the lower end of the compression spring is fixedly connected to the lower end of the guide rod.

7. The casting transfer sling according to claim 5, characterized in that: An arc-shaped rod is welded to the lower side of the limiting plate located at the positioning groove, and a pull ring is fixed to the lower end of the arc-shaped rod.

8. The casting transfer sling according to claim 1, characterized in that: The buffer pads are all rubber pads; the locking parts are spring latches.

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