Building crane lifting hook capable of being quickly replaced

Abstract

The utility model belongs to the field of heavy object carrying equipment, when a worker removes an old lifting hook and needs to replace a new lifting hook, the worker drives two arc-shaped blocks to move relatively through a power assembly, so that the two arc-shaped blocks drive a conical block to move upwards, and the conical block drives a spring to be in a compressed state; meanwhile, the two arc-shaped blocks drive the limiting blocks to retract, after a worker moves the lifting hook into the crane, the worker relieves driving on the power assembly and meanwhile relieves driving on the springs, the springs drive the conical blocks to move downwards according to the extensibility of the springs, and the conical blocks drive the two arc-shaped blocks to move in the opposite directions; the two arc-shaped blocks drive the limiting block to stretch out, the limiting block is driven to enter the limiting groove of the crane, limiting between the crane and the lifting hook is completed, hole grooves between the lifting hook and the crane are aligned, and a worker can use bolts to complete fixed limiting between the lifting hook and the crane.

Description

TECHNICAL FIELD

[0001] The utility model relates to heavy goods handling equipment field, concretely is a kind of building crane hook of quick replacement. BACKGROUND

[0002] Crane is a kind of common heavy machinery equipment, is widely used in construction site, port, warehouse, manufacturing plant and other various need to lift, carry heavy goods occasion, crane is lifted by hook or other device, moves and puts down heavy goods, greatly improves work efficiency and safety.

[0003] Hook is one of the commonly used accessories in crane and other hoisting equipment, for connecting the hoisted object and hoisting equipment, the existing hook is installed in crane by bolt, according to the different construction site, the hook used by crane is also different, hook replacement is often needed on crane, when replacing hook, workers need to hold hook, align the hook with the hole slot of crane, and support the hook, then install bolt, and tighten bolt using tool, which makes the existing hook replacement more cumbersome, and reduces the work efficiency of workers to some extent. UTILITARIAN CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a kind of building crane hook of quick replacement, solve the problem that existing hook replacement is more cumbersome, and reduces the work efficiency of workers to some extent.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of building crane hook of quick replacement, the hook is installed in crane, the inside of the hook is equipped with positioning mechanism, the positioning mechanism is slidably connected with the hook, positioning mechanism extends into the inside of the hook, and positioning mechanism extends into the inside of crane, and the positioning mechanism is slidably connected with the crane;

[0006] The positioning mechanism includes a spring, the spring is fixedly arranged in the inside of the hook, a conical block is fixedly arranged at the bottom of the spring, arc blocks are respectively arranged at the two sides of the conical block, the outer surface of the conical block is slidably connected with the inner surfaces of the two arc blocks, limiting blocks are respectively fixedly arranged at the sides of the two arc blocks away from the conical block, the two limiting blocks are slidably connected with the inside of the hook, limiting grooves are formed in the inside of the crane, the two limiting blocks extend into the two limiting grooves respectively at the sides of the two arc blocks away from the two limiting grooves, the two limiting blocks are slidably connected with the two limiting grooves respectively, a movable slot is formed in the outer surface of the hook, power assemblies are sleeved on the outer surfaces of the two arc blocks, the power assemblies are slidably connected with the two arc blocks, the power assemblies extend out of the inside of the movable slot at the sides of the two arc blocks away from the two arc blocks, and the power assemblies are slidably connected with the movable slot.

[0007] As a preferred technical scheme of the utility model, the power assembly comprises a power ring, the power ring is sleeved on the outer surfaces of the two arc-shaped blocks, the inner surface of the power ring is slidably connected with the outer surfaces of the two arc-shaped blocks, the side of the power ring away from the two arc-shaped blocks extends into the inner part of the movable groove, and the outer surface of the power ring is slidably connected with the inner surface of the movable groove.

[0008] As a preferred technical scheme of the utility model, the power ring is internally provided with connecting blocks, the two ends of the two connecting blocks extend into the inner part of the power ring, and the two ends of the two connecting blocks extend to the inner side walls of the movable groove, the outer surfaces of the two connecting blocks are slidably connected with the inner surface of the power ring, and the two ends of the two connecting blocks are fixedly connected with the inner side walls of the movable groove.

[0009] As a preferred technical scheme of the utility model, the inner part of the hook is provided with a guide groove, the two arc-shaped blocks are respectively fixedly provided with guide pieces at the top ends, the top ends of the two guide pieces extend into the inner part of the guide groove, and the outer surfaces of the two guide pieces are slidably connected with the inner surface of the guide groove.

[0010] As a preferred technical scheme of the utility model, the guide piece comprises a guide block, the bottom of the guide block is fixedly connected with the top end of the arc-shaped block, the top end of the guide block extends into the inner part of the guide groove, and the outer surface of the guide block is slidably connected with the inner surface of the guide groove.

[0011] As a preferred technical scheme of the utility model, the inner part of the hook is provided with a sliding groove, the two arc-shaped blocks are respectively fixedly provided with sliding blocks at the bottom ends, the bottom ends of the two sliding blocks extend into the inner part of the sliding groove, and the outer surfaces of the two sliding blocks are slidably connected with the inner surface of the sliding groove.

[0012] Compared with the prior art, the utility model provides a kind of building crane hook of quick replacement, with following beneficial effects:

[0013] When the old hook is removed by the worker, the new hook needs to be replaced, the worker drives the two arc-shaped blocks to move relative to each other through the power assembly, the two arc-shaped blocks drive the conical block to move upwards, the conical block drives the spring to be in a compressed state, and the two arc-shaped blocks drive the limiting block to retract when the worker moves the hook to the inside of the crane, the worker releases the driving of the power assembly and the driving of the spring, according to the elasticity of the spring, the spring drives the conical block to move downwards, the conical block drives the two arc-shaped blocks to move in opposite directions, the two arc-shaped blocks drive the limiting block to extend, and the limiting block enters the limiting groove of the crane, the limiting between the crane and the hook is completed, the hole and the groove between the hook and the crane are aligned, and the worker can use bolts to complete the fixing and limiting between the hook and the crane, the replacement of the hook is completed, the hole and the groove between the hook and the crane are quickly aligned through the structure, manual alignment and manual supporting and installation are not needed, the replacement process of the hook is simplified, and the work efficiency of the worker is improved to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A preferred embodiment structure schematic view of the building crane hook capable of being quickly replaced is provided.

[0015] Figure 2 For Figure 1 The local structure schematic view is shown.

[0016] Figure 3 For Figure 2 The structure schematic view of the hook is shown.

[0017] Figure 4 For Figure 3 The local structure schematic view is shown.

[0018] Figure 5 For Figure 4 The cross-sectional structure schematic view is shown.

[0019] Figure 6 For Figure 5 The structure schematic view of the power assembly is shown.

[0020] Figure 7 For Figure 4 The cross-sectional front view is shown.

[0021] In the figure: 1, hook; 2, spring; 3, conical block; 4, arc-shaped block; 5, limiting block; 6, limiting groove; 7, movable groove; 8, power ring; 9, connecting block; 10, crane; 11, guide groove; 12, guide block; 13, sliding groove; 14, sliding block. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] Please refer to Figures 1-7 In the embodiment, the hook 1 is installed in the inside of the crane 10, the inside of the hook 1 is provided with a positioning mechanism, the positioning mechanism is in sliding connection with the hook 1, the positioning mechanism extends into the inside of the hook 1 and extends into the inside of the crane 10, the positioning mechanism is in sliding connection with the crane 10, the positioning mechanism comprises a spring 2, the spring 2 is fixedly arranged in the inside of the hook 1, a taper block 3 is fixedly arranged at the bottom of the spring 2, two arc blocks 4 are arranged at the two sides of the taper block 3 respectively, the outer surface of the taper block 3 is in sliding connection with the inner surfaces of the two arc blocks 4, two limiting blocks 5 are fixedly arranged at the sides, away from the taper block 3, of the two arc blocks 4 respectively, the two limiting blocks 5 are in sliding connection with the inside of the hook 1, limiting grooves 6 are arranged in the inside of the crane 10, the sides, away from the two arc blocks 4, of the two limiting blocks 5 extend into the two limiting grooves 6 respectively, the two limiting blocks 5 are in sliding connection with the two limiting grooves 6 respectively, a movable groove 7 is arranged on the outer surface of the hook 1, a power assembly is arranged on the outer surfaces of the two arc blocks 4, the power assembly is in sliding connection with the two arc blocks 4, the side, away from the two arc blocks 4, of the power assembly extends into the inside of the movable groove 7, the power assembly is in sliding connection with the movable groove 7, the power assembly comprises a power ring 8, the power ring 8 is arranged on the outer surfaces of the two arc blocks 4, the inner surface of the power ring 8 is in sliding connection with the outer surfaces of the two arc blocks 4, the side, away from the two arc blocks 4, of the power ring 8 extends into the inside of the movable groove 7, the outer surface of the power ring 8 is in sliding connection with the inner surface of the movable groove 7, two connecting blocks 9 are arranged at the two sides of the inside of the power ring 8, the two ends of the two connecting blocks 9 extend into the inside of the power ring 8 and extend to the inner side walls of the movable groove 7, the outer surfaces of the two connecting blocks 9 are in sliding connection with the inner surface of the power ring 8, and the two ends of the two connecting blocks 9 are fixedly connected with the inner side walls of the movable groove 7.

[0024] A guide groove 11 is arranged in the inside of the hook 1, two guide pieces are fixedly arranged at the top ends of the two arc blocks 4 respectively, the top ends of the two guide pieces extend into the inside of the guide groove 11, the outer surfaces of the two guide pieces are in sliding connection with the inner surface of the guide groove 11, the guide piece comprises a guide block 12, the bottom of the guide block 12 is fixedly connected with the top end of the arc block 4, the top end of the guide block 12 extends into the inside of the guide groove 11, the outer surface of the guide block 12 is in sliding connection with the inner surface of the guide groove 11, a sliding groove 13 is arranged in the inside of the hook 1, two sliding blocks 14 are fixedly arranged at the bottoms of the two arc blocks 4 respectively, the bottoms of the two sliding blocks 14 extend into the inside of the sliding groove 13, and the outer surfaces of the two sliding blocks 14 are in sliding connection with the inner surface of the sliding groove 13.

[0025] When the two arc-shaped blocks 4 move relatively or in opposite directions, the two arc-shaped blocks 4 drive the guide blocks 12 and the sliding blocks 14 to move together in the guide grooves 11 and the sliding grooves 13, respectively, and the guide blocks 12 and the sliding blocks 14 limit the movement trajectories of the arc-shaped blocks 4, respectively, to prevent the arc-shaped blocks 4 from deviating in angle during movement, and the conical blocks 3 and the two limiting blocks 5 support and guide the two arc-shaped blocks 4, respectively, to prevent the two arc-shaped blocks 4 from falling over.

[0026] The working principle and use process of the utility model are as follows: when the old hook 1 is removed by the staff and a new hook 1 needs to be replaced, the staff drives the two arc-shaped blocks 4 to move relatively by the power ring 8, so that the two arc-shaped blocks 4 drive the conical blocks 3 to move upward, the conical blocks 3 drive the springs 2 to be in a compressed state, and the two arc-shaped blocks 4 drive the limiting blocks 5 to move backward, when the hook 1 is moved into the crane 10 by the staff, the staff releases the drive to the power ring 8 and releases the drive to the springs 2, according to the extension of the springs 2, the springs 2 drive the conical blocks 3 to move downward, so that the conical blocks 3 drive the two arc-shaped blocks 4 to move in opposite directions, so that the two arc-shaped blocks 4 drive the limiting blocks 5 to move outward, and the limiting blocks 5 enter the limiting grooves 6 of the crane 10, limiting between the crane 10 and the hook 1 is completed, the hole groove between the hook 1 and the crane 10 is aligned, and the staff can use the bolt to complete the fixing and limiting between the hook 1 and the crane 10, and then the crane 10 can work normally.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A quickly replaceable building crane hook, which hook (1) is installed inside a crane (10), characterized in that: The hook (1) is internally provided with a positioning mechanism, which is in sliding connection with the hook (1), extends into the hook (1), and extends into the crane (10) and is in sliding connection with the crane (10); The positioning mechanism comprises a spring (2) fixedly arranged in the hook (1), a taper block (3) fixedly arranged at the bottom of the spring (2), two arc blocks (4) respectively arranged at the two sides of the taper block (3), the outer surface of the taper block (3) in sliding connection with the inner surfaces of the two arc blocks (4), two limiting blocks (5) respectively fixedly arranged at the sides of the two arc blocks (4) away from the taper block (3), the two limiting blocks (5) in sliding connection with the inside of the hook (1), a limiting groove (6) formed in the inside of the crane (10), the two limiting blocks (5) respectively extending into the two limiting grooves (6) at the sides of the two arc blocks (4) away from the two limiting blocks (5), the two limiting blocks (5) respectively in sliding connection with the two limiting grooves (6), a movable groove (7) formed in the outer surface of the hook (1), a power assembly sleeved on the outer surfaces of the two arc blocks (4), the power assembly in sliding connection with the two arc blocks (4), the power assembly extending out of the movable groove (7) at the side of the power assembly away from the two arc blocks (4), and the power assembly in sliding connection with the movable groove (7).

2. A quickly replaceable building crane hook according to claim 1, characterized in that: The power assembly comprises a power ring (8) sleeved on the outer surfaces of the two arc blocks (4), the inner surface of the power ring (8) in sliding connection with the outer surfaces of the two arc blocks (4), the power ring (8) extending out of the movable groove (7) at the side of the power ring (8) away from the two arc blocks (4), and the outer surface of the power ring (8) in sliding connection with the inner surface of the movable groove (7).

3. A quickly replaceable building crane hook according to claim 2, characterized in that: The two sides of the inside of the power ring (8) are provided with connecting blocks (9), the two ends of the two connecting blocks (9) extending out of the inside of the power ring (8) and extending to the inner side walls of the movable groove (7), the outer surfaces of the two connecting blocks (9) in sliding connection with the inner surface of the power ring (8), and the two ends of the two connecting blocks (9) in fixed connection with the inner side walls of the movable groove (7).

4. A quickly replaceable building crane hook according to claim 3, characterized in that: The inside of the hook (1) is provided with a guide groove (11), two guide pieces are respectively fixedly arranged at the top ends of the two arc blocks (4), the top ends of the two guide pieces extending into the guide groove (11), and the outer surfaces of the two guide pieces in sliding connection with the inner surface of the guide groove (11).

5. A quickly replaceable building crane hook according to claim 4, characterized in that: The guide piece comprises a guide block (12), the bottom of the guide block (12) is in fixed connection with the top end of the arc block (4), the top end of the guide block (12) extends into the guide groove (11), and the outer surface of the guide block (12) is in sliding connection with the inner surface of the guide groove (11).

6. A quickly replaceable building crane hook according to claim 5, characterized in that: The inside of the hook (1) is provided with a sliding groove (13), two sliding blocks (14) are respectively fixedly arranged at the bottoms of the two arc blocks (4), the bottoms of the two sliding blocks (14) extending into the sliding groove (13), and the outer surfaces of the two sliding blocks (14) in sliding connection with the inner surface of the sliding groove (13).

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