Lifting hook of gantry lifting appliance

Abstract

The utility model discloses a lifting hook of a gantry lifting appliance. The lifting hook comprises a base and a lifting mechanism, the lower end of the base is fixedly connected with sliding columns which are symmetrically distributed front and back; the hoisting mechanism comprises sliding blocks, chain fixing seats and cross-shaped grooves, the sliding blocks are slidably connected to the left sides and the right sides of the two sliding columns correspondingly, the chain fixing seats which are symmetrically distributed left and right are arranged at the lower ends of the sliding blocks correspondingly, the cross-shaped grooves are formed in the middles of the chain fixing seats correspondingly, and chains are fixedly connected to the lower ends of the chain fixing seats correspondingly; the lifting mechanism comprises two chain fixing bases, the lower ends of the chains are fixedly connected with lifting hooks, the lifting mechanism further comprises supporting ribs, the evenly-distributed supporting ribs are fixedly connected between the two chain fixing bases located on the same sliding block, the lifting mechanism further comprises clamping grooves and positioning rods, and the clamping grooves are formed in the front end and the rear end of the sliding block. And the relative distance of the lifting hooks and the length of the chain can be adjusted, so that a longer product can be lifted more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to a gantry sling hook. Background Art

[0002] Gantry crane is a variation of bridge crane. In ports, it is mainly used for loading and unloading of outdoor cargo yards, material yards, and bulk cargo. Its metal structure is like a door-shaped frame, with two legs installed under the main beam, which can walk directly on the track on the ground. Both ends of the main beam can have outward cantilever beams. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port cargo yards.

[0003] When a gantry crane lifts a product, it is necessary to first fix the hook at the four corners of the product, and then lift the product after making sure that all four corners are fixed. However, when facing a product that is too long, the fixed position of the hook is too close to the center of the product. At the same time, the four corners where the hook is fixed are not necessarily symmetrical. When lifting, a certain chain is not subjected to force, and the stability of the lifted product is poor. For this reason, we propose a gantry crane hook. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a gantry hoist hook, which can adjust the relative distance of the hooks and the length of the chain to facilitate more stable lifting of longer products, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry hanger hook, comprising a base and a hoisting mechanism;

[0006] Base: Its lower end is fixedly connected with sliding columns symmetrically distributed front and back;

[0007] Lifting mechanism: It includes a slider, a chain fixing seat and a cross slot. The slider is slidably connected to the left and right sides of the two sliding columns respectively. The lower end of the slider is provided with a chain fixing seat symmetrically distributed on the left and right. The middle part of the chain fixing seat is provided with a cross slot. The lower end of the chain fixing seat is fixedly connected with a chain. The lower end of the chain is fixedly connected with a hook. The relative distance of the hook and the length of the chain can be adjusted to facilitate more stable lifting of longer products.

[0008] Furthermore, the hoisting mechanism also includes support ribs, and evenly distributed support ribs are fixedly connected between two chain fixing seats located on the same sliding block to improve the tensile strength of the two chain fixing seats.

[0009] Furthermore, the lifting mechanism also includes a slot and a positioning rod. The front and rear ends of the slider are provided with slots, and a positioning rod is rotatably connected between the two slots located on the same slider. The front and rear ends of the upper surface of the base are fixedly connected with ratchet plates symmetrically distributed on the left and right, and the upper end of the positioning rod is respectively clamped between the ratchet teeth of the two ratchet plates on the same side on the left and right to fix the position of the slider.

[0010] Furthermore, the lifting mechanism also includes an anti-falling shaft, and the front and rear ends of the slider are connected with the anti-falling shaft through nuts. The anti-falling shafts are located inside adjacent slots and at the lower ends of adjacent positioning rods to prevent the positioning rods from falling off.

[0011] Furthermore, the upper surface of the base is provided with fixing plates symmetrically distributed at four corners, the upper ends of the fixing plates are fixedly connected with cables, and connecting seats are fixedly connected between the cables. The connecting seats are located at the upper end of the base and are fixedly connected to the gantry crane.

[0012] Furthermore, the front side of the base is provided with scale bars which are symmetrically distributed on the left and right sides, and the front sides of the upper surfaces of the sliders are provided with positioning bars, which respectively correspond to the upper and lower positions of adjacent scale bars, so as to facilitate the left and right symmetry of the two sliders.

[0013] Furthermore, the upper surface of the base is provided with evenly distributed reinforcing ribs to improve the mechanical strength of the base.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the gantry hoist hook has the following advantages:

[0015] Move the hook of the gantry crane to the lower end of the product to be lifted by the gantry crane, slide the sliders to move the hook to both sides of the product, and then clamp the upper end of the positioning rod between the ratchet teeth of the two ratchet plates on the same side on the left and right sides, determine the positions of the two sliders by the scale bar and the positioning bar, make the positions of the two sliders symmetrical on the left and right, and make the force more balanced, fix the hook at the four corners of the product, and then lift the base through the connecting seat of the gantry crane, observe the tension of each chain, if the chain is not tight, clamp the upper end of the chain to the inside of the cross groove of the upper chain fixing seat, reduce the length of the chain, tighten the chain, make the force on the chain more even, and slide the slider to make the hook closer to the two ends of the product, so as to cope with products of different specifications, and then adjust the length of the chain according to the fixed position of the hook, so that the force on the four hooks is more even, and it is more stable when lifting the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a top view structural diagram of the lifting mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the positioning rod of the utility model.

[0019] In the figure: 1 base, 2 lifting mechanism, 21 slider, 22 anti-drop shaft, 23 slot, 24 chain fixing seat, 25 cross slot, 26 support rib, 27 positioning rod, 3 slide column, 4 chain, 5 hook, 6 positioning bar, 7 scale bar, 8 ratchet plate, 9 connecting seat, 10 fixing plate, 11 cable, 12 reinforcing rib. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 ,This embodiment provides a technical solution: a gantry hanger hook, comprising a base 1 and a hoisting mechanism 2;

[0022] Base 1: Its lower end is fixedly connected with sliding columns 3 symmetrically distributed in the front and rear, and the upper surface of the base 1 is provided with fixing plates 10 symmetrically distributed in the four corners, and the upper ends of the fixing plates 10 are fixedly connected with cables 11, and the cables 11 are fixedly connected with connecting seats 9, which are located at the upper end of the base 1. The front side of the base 1 is provided with scale bars 7 symmetrically distributed in the left and right, and the front side of the upper surface of the slider 21 is provided with positioning bars 6, and the positioning bars 6 correspond to the upper and lower positions of the adjacent scale bars 7 respectively. The upper surface of the base 1 is provided with uniformly distributed reinforcing ribs 12, and the positions of the two sliders 21 are determined by the scale bars 7 and the positioning bars 6. After the product is fixed, the base 1 is lifted by the gantry crane through the connecting seat 9 to lift the product;

[0023] The lifting mechanism 2 includes a slider 21, a chain fixing seat 24 and a cross groove 25. The sliders 21 are slidably connected to the left and right sides of the two sliding columns 3 respectively. The lower ends of the sliders 21 are provided with chain fixing seats 24 symmetrically distributed on the left and right sides. The middle parts of the chain fixing seats 24 are provided with cross grooves 25. The lower ends of the chain fixing seats 24 are fixedly connected with chains 4. The lower ends of the chains 4 are fixedly connected with hooks 5. The lifting mechanism 2 also includes support ribs 26. The two chain fixing seats 24 located on the same slider 21 are fixedly connected with evenly distributed support ribs 26. The lifting mechanism 2 also includes a card slot 23 and a positioning rod 27. The front and rear ends of the slider 21 are provided with card slots 23. The positioning rod 27 is rotatably connected between the two card slots 23 located on the same slider 21. The front and rear ends of the upper surface of the base 1 are fixedly connected with ratchet plates 8 symmetrically distributed on the left and right sides. The upper ends of the positioning rods 27 are respectively connected between the ratchet teeth of the two ratchet plates 8 on the same sides. The mounting mechanism 2 also includes an anti-falling shaft 22. The front and rear ends of the slider 21 are connected with the anti-falling shaft 22 through nuts. The anti-falling shaft 22 is located inside the adjacent card slots 23. The anti-falling shaft 22 is located at the lower end of the adjacent positioning rod 27. The sliders 21 are slid respectively to move the hook 5 to the two sides of the product, and then the upper ends of the positioning rods 27 are respectively clamped between the ratchet teeth of the two ratchet plates 8 on the same sides, so that the positions of the two sliders 21 are symmetrical on the left and right, and the force is more balanced. The hook 5 is fixed to the four corners of the product, and then the gantry crane lifts the base 1 through the connecting seat 9, and observes the tension of each chain 4. If the chain 4 is not tight, the upper end of the chain 4 is clamped to the inside of the cross groove 25 of the chain fixing seat 24 at the upper end, reducing the length of the chain 4, tightening the chain 4, and making the force of the chain 4 more even. When lifting the product, the positioning rod 27 pulls the slider 21, and the pulling force of the positioning rod 27 is balanced with the gravity of the product to prevent the slider 21 from sliding.

[0024] The working principle of a gantry crane hook provided by the utility model is as follows: the gantry crane is used to move the gantry crane hook to the lower end of the product to be lifted, and the sliders 21 are slid respectively to move the hook 5 to the two sides of the product, and then the upper ends of the positioning rods 27 are respectively clamped between the ratchet teeth of the two ratchet plates 8 on the same sides on the left and right sides, and the positions of the two sliders 21 are determined by the scale bar 7 and the positioning bar 6, so that the positions of the two sliders 21 are symmetrical on the left and right, and the force is more balanced, and the hook 5 is fixed to the four corners of the product, and then the gantry crane lifts the base 1 through the connecting seat 9, and observes the tension of each chain 4. If the chain 4 is not tight, the upper end of the chain 4 is clamped to the inside of the cross groove 25 of the upper chain fixing seat 24, the length of the chain 4 is reduced, the chain 4 is tightened, and the force on the chain 4 is more even, and the reinforcing ribs 12 on the upper surface of the base 1 make the compressive strength of the base 1 higher.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gantry hanger hook, characterized in that: It comprises a base (1) and a lifting mechanism (2); The base (1) has a lower end fixedly connected with sliding posts (3) symmetrically distributed frontward and rearward; The lifting mechanism (2) comprises a slider (21), a chain fixing seat (24) and a cross groove (25), wherein the slider (21) is slidably connected to the left and right sides of the two sliding posts (3), the lower end of the slider (21) is provided with a chain fixing seat (24) symmetrically distributed on the left and right sides, the middle part of the chain fixing seat (24) is provided with a cross groove (25), the lower end of the chain fixing seat (24) is fixedly connected to a chain (4), and the lower end of the chain (4) is fixedly connected to a hook (5).

2. A gantry hanger hook according to claim 1, characterized in that: The hoisting mechanism (2) further comprises support ribs (26), and evenly distributed support ribs (26) are fixedly connected between two chain fixing seats (24) located on the same sliding block (21).

3. A gantry hanger hook according to claim 1, characterized in that: The hoisting mechanism (2) further comprises a slot (23) and a positioning rod (27); the front and rear ends of the slider (21) are both provided with a slot (23); a positioning rod (27) is rotatably connected between two slots (23) located on the same slider (21); ratchet plates (8) symmetrically distributed on the left and right are fixedly connected to the front and rear ends of the upper surface of the base (1); and the upper ends of the positioning rod (27) are respectively engaged between the ratchet teeth of two ratchet plates (8) on the same left and right sides.

4. A gantry hanger hook according to claim 3, characterized in that: The hoisting mechanism (2) further comprises an anti-drop shaft (22), the front and rear ends of the slider (21) are connected to the anti-drop shaft (22) via nuts, the anti-drop shaft (22) is located inside the adjacent slots (23), and the anti-drop shaft (22) is located at the lower end of the adjacent positioning rod (27).

5. The gantry hanger hook according to claim 1, characterized in that: The upper surface of the base (1) is provided with fixing plates (10) symmetrically distributed at four corners, the upper ends of the fixing plates (10) are fixedly connected to cables (11), and connecting seats (9) are fixedly connected between the cables (11), and the connecting seats (9) are located at the upper end of the base (1).

6. A gantry hanger hook according to claim 1, characterized in that: The front side surface of the base (1) is provided with scale bars (7) that are symmetrically distributed on the left and right sides, and the front side of the upper surface of the slider (21) is provided with positioning bars (6), and the positioning bars (6) correspond to the upper and lower positions of adjacent scale bars (7) respectively.

7. A gantry hanger hook according to claim 1, characterized in that: The upper surface of the base (1) is provided with evenly distributed reinforcing ribs (12).

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