Lifting appliance for lifting single bar

Abstract

The utility model discloses a lifting appliance for lifting a single bar, and relates to the technical field of bar lifting appliance design and application. Comprising a lifting hook and a supporting plate, the lifting hook comprises a connecting part, a bearing part and a hook bending part which are integrally connected, the connecting part can be divided into a first connecting part and a second connecting part, the first connecting part and the bearing part are oppositely arranged, the second connecting part is connected with the bearing part, and the first connecting part, the second connecting part and the bearing part can be matched to form a containing space with a U-shaped opening. The bearing portion is fixedly connected with a supporting plate used for bearing the end of the bar, the end portion of the end of the supported bar abuts against the second connecting portion, the hook portion extends in the first direction, the first connecting portion is connected with the hook portion, and the first connecting portion and the hook portion can be matched to form a hook used for hanging a lifting rope. And the opening direction of the hook is opposite to the lifted bar. According to the utility model, not only can the safety risk caused by hoisting of a single bar in the prior art be effectively solved, but also the operation efficiency of hoisting of the single bar can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the design and application technical field of bar material lifting appliance, concretely is a kind of lifting appliance of hoisting single bar material. BACKGROUND

[0002] In the bar finishing process, single bar material needs to be transferred, oriented, weighed and the like, and currently, it is hoisted by steel wire rope or sling, but for bar material with high surface finish, the steel wire rope or sling will slide at the beginning of lifting, and the hoisted bar material is unstable, and when hoisting and transferring the bar material, the hoisted bar material can also slide, deviate and fall, and the hoisting efficiency is low, and there are significant safety hazards. UTILITARY MODEL

[0003] The utility model aims at providing a kind of lifting appliance of hoisting single bar material to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of lifting appliance of hoisting single bar material, including lifting hook and backing plate, lifting hook includes the connecting portion of integrated connection, supporting portion and crook portion, the axis of connecting portion, the axis of supporting portion and the axis of crook portion are all in the same horizontal plane;Connecting portion can be divided into first connecting portion and second connecting portion, first connecting portion is oppositely arranged with supporting portion, second connecting portion connects supporting portion, first connecting portion, second connecting portion and supporting portion can form the accommodating space of U-shaped opening in cooperation, supporting portion is fixedly connected with the backing plate for supporting the end of bar material, and the end of the supported end of bar material is in abutment with second connecting portion;Crook portion extends along first direction, first connecting portion connects crook portion, and first connecting portion and crook portion can form a hook for hanging hook rope in cooperation, the opening of hook faces away from the hoisted bar material.

[0005] Based on the above technical features, when hoisting single bar material, two lifting appliances and two hook ropes are prepared, the rope heads of hook ropes are hung on the hooks of two lifting hooks respectively, then the two ends of bar material are inserted into the accommodating spaces of two lifting hooks respectively, and the end of bar material is supported on the backing plate and the end is in abutment on second connecting portion, after the above operation, then the crane is lifted under command, the above bar hoisting operation process is not only convenient to operate, but also relatively safe and stable when hoisting bar material.

[0006] Preferably, in the technical scheme, an inner angle is formed between the second connecting portion and the supporting portion, and the included angle of the inner angle ranges from 80° to 90°.

[0007] Based on the above technical features, a certain inner angle is formed between the second connecting portion and the supporting portion, so that when the sling is used to lift a single bar, the sling can well hook the end of the bar, effectively preventing the bar from falling during lifting.

[0008] Preferably in the present technical solution, the support plate is arc-shaped and bent in the direction away from the accommodating space, the support plate extends along the first direction, and the support plate is adapted to the hoisted rod; the inner arc radius of the support plate is not less than the radius of the hoisted rod, and the curvature range of the support plate is 90° to 180°; more preferably, the inner arc radius of the support plate is the same as the radius of the hoisted rod.

[0009] Based on the above technical features, the arc-shaped support plate is adapted to the rods being lifted. When the rods are hooked on the sling, the rods can be automatically centered, thereby improving the lifting efficiency and making the rods more stable during lifting.

[0010] Preferably in the present technical solution, the sling further comprises a baffle, which is located in the accommodating space and is fixed to the second connecting portion, and the end of the hoisted rod end abuts against the baffle, and the baffle is a round steel plate, the radius of the baffle is the same as the inner arc radius of the support plate, and the baffle is welded to the inner arc surface of the support plate along the circumferential direction.

[0011] Based on the above technical features, the end of the hoisted bar abuts against the baffle, and the baffle can effectively bear the force of the bar along the axis to prevent the bar from deflecting or falling during hoisting.

[0012] In the present technical solution, preferably, the tip of the hook is chamfered.

[0013] Based on the above technical features, the sharp edges of the hook can be effectively removed to avoid scratching operators and improve product safety.

[0014] In the present technical solution, preferably, an arc hook is provided at one end of the hook portion away from the first connecting portion, and the arc hook is located at the opening position of the hook to prevent the sling from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a sling in an embodiment of the present utility model;

[0016] Figure 2 This is a front view of a sling in an embodiment of the present utility model;

[0017] Figure 3 In the embodiment of the present utility model Figure 1 AA section view;

[0018] Figure 4 For the B-B cross-sectional view of the embodiment of the present application Figure 1

[0019] Figure 5 For the B-B cross-sectional view of the embodiment of the present application

[0020] In the figure: 1, hook; 2, connecting part; 21, first connecting part; 22, second connecting part; 3, supporting part; 4, hook part; 5, supporting plate; 6, baffle; 7, arc hook; 8, lifting rope; 9, bar. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In addition, it should be understood that, for the convenience of description, the sizes of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship.

[0024] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined or described in one drawing, it will not need to be further specifically discussed and described in the description of the subsequent drawings.

[0025] As shown in Figures 1 to 5 The present application provides a technical solution: a lifting device for lifting a single bar, the lifting device comprising a hook 1, a supporting plate 5 and a baffle 6.

[0026] Specifically, as shown in Figures 1 to 4 ​As shown, the hook 1 comprises a connecting part 2, a supporting part 3 and a hook part 4 which are integrally connected, the axis of the connecting part 2, the axis of the supporting part 3 and the axis of the hook part 4 are all in the same horizontal plane. The connecting part 2 can be divided into a first connecting part 21 and a second connecting part 22, the first connecting part 21 is arranged opposite to the supporting part 3, the second connecting part 22 connects the supporting part 3, the first connecting part 21, the second connecting part 22 and the supporting part 3 can cooperate to form a containing space which is in the shape of U type opening, the supporting part 3 is fixedly connected with a supporting plate 5 which is used for supporting the end of the bar 9, and the end of the end of the bar 9 abuts against the second connecting part 22. The hook part 4 extends along a first direction, the first connecting part 21 connects the hook part 4, and the first connecting part 21 and the hook part 4 can cooperate to form a hook which is used for hanging the lifting rope 8, and the opening of the hook faces away from the bar 9 which is lifted.

[0027] As shown in the figure, Figure 3 In order to make the lifting appliance can be well hooked to the end of the bar 9 when the lifting appliance is used for lifting a single bar, and effectively avoid the bar 9 from falling during lifting, an inner angle is formed between the second connecting part 22 and the supporting part 3, and the included angle of the formed inner angle is 80°-90°. In the embodiment of the utility model, the angle of the inner angle formed between the second connecting part 22 and the supporting part 3 is 85°. The connecting part between the second connecting part 22 and the supporting part 3 is chamfered, and the chamfered arc angle is 30mm-40mm, which can effectively avoid stress concentration, and further improve the reliability and service life of the lifting appliance during lifting. In the embodiment of the utility model, the arc angle formed by the chamfering between the second connecting part 22 and the supporting part 3 is 35mm.

[0028] Further, an arc hook 7 is arranged at the end of the hook part 4 which is away from the first connecting part 21, the arc hook 7 is located at the opening position of the hook, and is used for preventing the lifting rope 8 from falling off. In the embodiment of the utility model, the cross-sectional dimension of the hook part 4 is 30mm, the first connecting part 21 is bent along the direction away from the containing space, and the opening depth of the hook formed by the cooperation of the first connecting part 21 and the hook part 4 is 140mm, and the width is 35.5mm (in other embodiments, the cross-sectional dimension of the hook part and the size of the hook can be adjusted adaptively according to the size of the bar which is lifted).

[0029] As shown in the figure, Figures 1 to 4 The supporting plate 5 and the baffle 6 are both located in the containing space, the supporting plate 5 is welded on the supporting part 3, the baffle 6 is welded on the second connecting part 22, the end of the bar 9 which is lifted is placed on the supporting plate 5, and the end of the end of the bar 9 which is lifted abuts against the baffle 6.

[0030] Further, the supporting plate 5 is in a circular arc shape, and the supporting plate 5 is bent away from the accommodating space, the supporting plate 5 extends along the first direction, and the supporting plate 5 is matched with the hoisted bar 9, when the bar 9 is hung on the lifting appliance, the bar 9 can be automatically centered, and the hoisting efficiency is improved. In order to adapt the lifting appliance to bars 9 of different sizes, the inner arc radius of the supporting plate 5 is not less than the radius of the hoisted bar 9, the inner arc radius range can be 100mm-300mm, the arc range of the supporting plate 5 is 90°-180°, the thickness of the supporting plate 5 is 10mm-20mm, and the extension length along the first direction is 80mm-100mm (which can be adjusted according to the length of the bar 9). In the embodiment of the utility model, in order to avoid the lifting appliance being too heavy and causing inconvenience to the workers, the inner arc radius of the supporting plate 5 is the same as the radius of the hoisted bar 9, the arc of the supporting plate 5 is 90°, the thickness of the supporting plate 5 is 10mm, and the extension length along the first direction is 83.6mm.

[0031] Further, the baffle 6 is a solid round steel plate, the radius of the baffle 6 is the same as the inner arc radius of the supporting plate 5, the baffle 6 is welded along the circumferential direction to the inner arc surface of the supporting plate 5, the thickness of the baffle 6 is 10mm-20mm, and the radius is 100mm-300mm. The end of the hoisted bar 9 end abuts against the baffle 6, and the baffle 6 can effectively bear the force of the bar 9 along the axis, so as to avoid the bar 9 from deviating and falling during hoisting. In the embodiment of the utility model, the thickness of the baffle 6 is 16mm, and the radius is 119mm.

[0032] Further, the center position of the baffle 6 is the center force point of the lifting appliance during hoisting, the distance from the top end surface of the hook portion 4 to the center position of the baffle 6 along the axis direction of the second connecting portion 22 is 200-500mm, the distance from the bottom end surface of the supporting portion 3 to the center position of the baffle 6 is 90-200mm, and along the first direction, the length of the hook portion 4 and the first connecting portion 21 is 200-500mm, and the length of the supporting portion 3 is 100-300mm. The above setting can make the upper part structure moment of the lifting appliance (namely the part above the center position of the baffle) slightly larger than the lower part structure moment (namely the part below the center position of the baffle), so that the lifting appliance slightly deviates during hoisting, the baffle 6 can always abut against the hoisted bar, and the stability of the bar during hoisting is improved. In the embodiment of the utility model, the distance from the top end surface of the hook portion 4 to the center position of the baffle 6 is 215mm, the distance from the bottom end surface of the supporting portion 3 to the center position of the baffle 6 is 100mm, along the first direction, the length of the hook portion 4 and the first connecting portion 21 is 200mm, and the length of the supporting portion 3 is 130mm.

[0033] As Figures 1 to 4As shown, the tip and the bending part of the hook 1 are chamfered to remove the sharp edges of the hook 1, so as to avoid scratching the operator and improve the safety of the product.

[0034] As shown, Figure 5 As shown, in the single rod lifting application, two lifting tools and two lifting ropes 8 are prepared, and only two workers are needed to complete the lifting work of the single rod. The workers first hang the rope heads of the two lifting ropes 8 (steel wire ropes, lifting belts, etc. can be selected as long as they can meet the normal lifting work) on the hooks of the two hooks 1, then place the rod 9 to be prepared for lifting on the supporting plates 5 of the two lifting tools, and push the two lifting tools along the axis direction of the rod 9 to make the end of the rod 9 abut against the second connecting part 22, and then command the crane to lift. The lifting tool in the utility model is not only convenient to operate, but also relatively safe and stable when lifting the rod.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A spreader for hoisting a single rod, characterized in that The lifting tool comprises a lifting hook (1) and a supporting plate (5), wherein: The lifting hook (1) comprises a connecting part (2), a supporting part (3) and a hook part (4) which are integrally connected, the axis of the connecting part (2), the axis of the supporting part (3) and the axis of the hook part (4) are in the same horizontal plane; The connecting part (2) can be divided into a first connecting part (21) and a second connecting part (22), the first connecting part (21) is arranged opposite to the supporting part (3), the second connecting part (22) is connected to the supporting part (3), the first connecting part (21), the second connecting part (22) and the supporting part (3) can cooperate to form a U-shaped opening accommodating space, the supporting plate (5) for supporting the end of the bar (9) is fixedly connected to the supporting part (3), and the end of the supported bar (9) abuts against the second connecting part (22). The hook part (4) extends in a first direction, the first connecting part (21) is connected to the hook part (4), and the first connecting part (21) and the hook part (4) can cooperate to form a hook for hanging the lifting rope (8), and the opening of the hook faces away from the hoisted bar (9).

2. A single-rod lifting spreader according to claim 1, characterized in that An inner angle is formed between the second connecting part (22) and the supporting part (3), and the included angle of the inner angle ranges from 80° to 90°.

3. A spreader for hoisting a single bar according to claim 2, characterised in that The supporting plate (5) is arc-shaped, and the supporting plate (5) is bent away from the accommodating space, the supporting plate (5) extends in the first direction, and the supporting plate (5) is matched with the hoisted bar (9).

4. A single-rod lifting spreader according to claim 3, characterized in that The inner arc radius of the supporting plate (5) is not less than the radius of the hoisted bar (9), and the arc range of the supporting plate (5) ranges from 90° to 180°.

5. A spreader according to claim 4, characterised in that, The inner arc radius of the supporting plate (5) is the same as the radius of the hoisted bar (9).

6. A single-rod lifting spreader according to claim 4, characterized in that The lifting tool further comprises a baffle (6) located in the accommodating space, and the baffle (6) is fixedly connected to the second connecting part (22), and the end of the hoisted bar (9) abuts against the baffle (6).

7. A spreader according to claim 6, characterised in that, The baffle (6) is a round steel plate, the radius of the baffle (6) is the same as the inner arc radius of the supporting plate (5), and the baffle (6) is welded to the inner arc surface of the supporting plate (5) in the circumferential direction.

8. The single-rod lifting spreader of claim 1, wherein, The tip of the lifting hook (1) is chamfered.

9. The single-rod lifting spreader of claim 1, wherein, An arc hook (7) is arranged at the end of the hook part (4) away from the first connecting part (21), the arc hook (7) is located at the opening position of the hook, and is used for preventing the lifting rope (8) from falling off.

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