Anti-unhooking device for crane hook

Abstract

The utility model provides an anti-unhooking device for a crane hook, which comprises a hook, an opening and closing assembly, a hook and a hook locking assembly, the control assembly is arranged in the third groove of the lifting hook, the control assembly comprises a bearing plate, the bearing plate is arranged in the third groove of the lifting hook, and the bearing plate is connected with the opening and closing assembly through a control part; the sleeve is fixedly connected with the bearing plate, and the sleeve and the lifting hook are arranged in a relatively slidable manner; the bearing plate can drive the sleeve to slide under pressure, so that the opening and closing assembly is controlled by the control part to open or close the opening of the lifting hook.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hook technical field, concretely relates to a crane hook anti -unhooking device. BACKGROUND

[0002] The anti -unhooking device of crane hook usually uses the duck -billed type made of steel plate, and the duck -billed type steel plate is fixed in the neck of the hook using spring card and thin screw rod.Crane uses hoisting belt or rigging hoisting operation, need to press the duck -billed steel plate, then take out hoisting belt from the hook again, and the operation is more cumbersome.

[0003] Therefore, the prior art needs further development. INVENTION CONTENTS

[0004] The utility model discloses a crane hook anti -unhooking device to overcome the above -mentioned technical insufficiency, and solve the technical problem that crane uses hoisting belt or rigging hoisting operation in relevant technology, need to press the duck -billed steel plate, then take out hoisting belt from the hook again, and the operation is more cumbersome.

[0005] To achieve the above technical purpose, the utility model takes the following technical scheme: provide a crane hook anti -unhooking device, including hook, including:

[0006] Opening and closing assembly, the opening and closing assembly is connected with the hook;

[0007] Control assembly, the control assembly is arranged in the third recess of the hook, and the control assembly includes:

[0008] Bearing plate, the bearing plate is arranged in the third recess of the hook, and the bearing plate is connected with the opening and closing assembly through the control part;

[0009] Sleeve, the sleeve is connected and fixed with the bearing plate, and the sleeve is slidably arranged with the hook.

[0010] The bearing plate is driven to slide the sleeve, so as to control the opening and closing assembly to open or close the opening of the hook through the control part.

[0011] Further, the control part includes:

[0012] Strong magnet, the strong magnet is detachably connected with the bearing plate;

[0013] First pull ring, the first pull ring is fixed with the strong magnet;

[0014] Second pull ring, the second pull ring is connected and fixed with the hook;

[0015] A third pull ring is arranged on both sides of the opening and closing assembly;

[0016] A first pull cable is fixed at one end to the first pull ring and at the other end to the third pull ring on one side of the opening and closing assembly, and passes through the second pull ring;

[0017] A second pull cable is fixed at one end to the first pull ring and at the other end to the third pull ring on the other side of the opening and closing assembly, and passes through the second pull ring.

[0018] Further, the control assembly comprises a telescopic spring arranged in the sleeve, one end of the telescopic spring is fixed to the hook, and the other end of the telescopic spring is fixed to the sleeve.

[0019] Further, the opening and closing assembly comprises:

[0020] A first connecting plate is fixedly connected with a rotating shaft, and the rotating shaft is arranged opposite to the hook and rotatable;

[0021] A first torsion spring is sleeved on the rotating shaft, one end of the first torsion spring is fixed to the hook, and the other end of the first torsion spring is fixed to the first connecting plate;

[0022] A rotating shaft passes through the first connecting plate at both ends, the rotating shaft is fixed to the first connecting plate, and the third pull ring is fixed to both ends of the rotating shaft;

[0023] A second connecting plate is movably arranged opposite to the first connecting plate, and the second connecting plate is rotatably arranged opposite to the rotating shaft.

[0024] Further, the opening and closing assembly comprises a second torsion spring, the second torsion spring is sleeved on the rotating shaft, one end of the second torsion spring is fixed to the first connecting plate, and the other end of the second torsion spring is fixed to the second connecting plate.

[0025] Further, the crane hook anti-unhooking device further comprises a locking assembly, the locking assembly comprises:

[0026] A sliding shaft is fixed to the first connecting plate, and the sliding shaft is symmetrically arranged with the central axis of the first connecting plate;

[0027] A sliding plate is movably arranged opposite to the sliding shaft, the sliding plate is movably arranged opposite to the first connecting plate, and the sliding plate is movably arranged opposite to the rotating shaft;

[0028] When the first connecting plate and the second connecting plate are parallel to each other, the sliding plate slides onto the first connecting plate and the second connecting plate to prevent the second connecting plate from rotating.

[0029] Further, sliding grooves are formed on two sides of the sliding plate, the sliding shaft is slidably connected to the sliding grooves, and the rotating shaft is slidably connected to the sliding grooves.

[0030] Further, a first groove is formed on the sliding plate.

[0031] Further, a second groove is formed on the first connecting plate.

[0032] Beneficial effects:

[0033] 1. The lifting hook is closed by the lifting belt passing through the lifting hook, being placed on the bearing plate, the bearing plate descending, and the opening and closing assembly being driven to move by the control assembly.

[0034] 2. The bearing plate is reset when not under pressure by the telescopic function of the telescopic spring.

[0035] 3. When the first connecting plate and the second connecting plate are parallel to each other, the sliding plate slides onto the first connecting plate and the second connecting plate to limit the first connecting plate and the second connecting plate. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structure schematic view of the opening and closing assembly of the crane hook anti-unhooking device adopted by the embodiment of the utility model, which closes the lifting hook;

[0037] Figure 2 is a structure schematic view of the opening and closing assembly of the crane hook anti-unhooking device adopted by the embodiment of the utility model, which opens the lifting hook;

[0038] Figure 3 is a partial structure schematic view of the control assembly of the crane hook anti-unhooking device adopted by the embodiment of the utility model;

[0039] Figure 4 is a structure schematic view of the opening and closing assembly of the crane hook anti-unhooking device adopted by the embodiment of the utility model;

[0040] Figure 5 is a structure schematic view of the locking assembly of the crane hook anti-unhooking device provided by the embodiment of the utility model.

[0041] Among them, the above-mentioned drawings include the following drawing marks:

[0042] 1. Lifting hook;

[0043] 2, open and close assembly; 21, first connecting plate; 23, rotating shaft; 24, second connecting plate; 25, second torsion spring; 26, second groove;

[0044] 3, control assembly; 31, bearing plate; 32, sleeve;

[0045] 33, control part; 331, strong magnet; 332, first pull ring; 333, second pull ring; 334, third pull ring; 335, first pull rope; 336, second pull rope;

[0046] 4, locking assembly; 41, sliding shaft; 42, sliding plate; 43, sliding groove; 44, first groove;

[0047] 6, third groove. DETAILED DESCRIPTION

[0048] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0049] According to the utility model embodiment, a crane hook anti-unhooking device is provided, please refer to Figures 1 to 5 , including hook 1, including: open and close assembly 2, open and close assembly 2 is connected with hook 1;Control assembly 3, the control assembly 3 is arranged in the third groove 6 of hook 1, the control assembly 3 includes: bearing plate 31, the bearing plate 31 is arranged in the third groove 6 of hook 1, the bearing plate 31 is connected with open and close assembly 2 through control part 33;Sleeve 32, the sleeve 32 is connected and fixed with bearing plate 31, the sleeve 32 is slidably arranged with hook 1 relative;The bearing plate 31 is driven sleeve 32 sliding under pressure, thereby control part 33 controls open and close assembly 2 opens or closes the opening of hook 1.

[0050] By adopting the above technical scheme, by lifting the belt through hook 1, place on bearing plate 31, bearing plate 31 drops, and open and close assembly 2 is driven by control assembly 3 to move, so as to close the opening of hook 1.

[0051] Please refer to Figures 2-4The control unit 33 includes: a strong magnet 331, which is detachably connected to the support plate 31; a first pull ring 332, which is fixed to the strong magnet 331; a second pull ring 333, which is connected and fixed to the hook 1; a third pull ring 334, which is disposed on both sides of the opening and closing assembly 2; a first cable 335, one end of which is fixed to the first pull ring 332, and the other end of which is fixed to the third pull ring 334 on one side of the opening and closing assembly 2, and the first cable 335 passes through the second pull ring 333; and a second cable 336, one end of which is fixed to the first pull ring 332, and the other end of which is fixed to the third pull ring 334 on the other side of the opening and closing assembly 2, and the second cable 336 passes through the second pull ring 333.

[0052] By adopting the above technical solution, through the cooperation of the first cable 335 and the second cable 336 with the powerful magnet 331, when the support plate 31 descends, the powerful magnet 331 disengages from the support plate 31, the opening and closing assembly 2 loses its limiting position, and the opening is opened. Figure 2 The state changes to closed opening. Figure 1 The state.

[0053] The control component 3 includes a telescopic spring, which is disposed inside the sleeve 32. One end of the telescopic spring is fixed to the hook 1, and the other end of the telescopic spring is connected and fixed to the sleeve 32.

[0054] By adopting the above technical solution, the extension and retraction function of the telescopic spring allows the bearing plate 31 to reset when not under pressure, facilitating connection with the powerful magnet 331 and transforming the opening and closing assembly 2 into... Figure 2 The state.

[0055] Please see Figure 4 The opening and closing assembly 2 includes: a first connecting plate 21, on which a rotating shaft is fixedly connected, the rotating shaft being rotatably disposed relative to the hook 1; a first torsion spring, which is sleeved on the rotating shaft, one end of the first torsion spring being fixed to the hook 1, and the other end of the first torsion spring being fixed to the first connecting plate 21; a rotating shaft 23, both ends of which pass through the first connecting plate 21, the rotating shaft 23 being fixed to the first connecting plate 21, and the third pull ring 334 being fixed to both ends of the rotating shaft 23; and a second connecting plate 24, which is movably disposed relative to the first connecting plate 21, and rotatably disposed relative to the rotating shaft 23.

[0056] Through adoption of the above technical scheme, the first connecting plate 21 can be rotated relative to the hook 1 through the setting of the first torsion spring, and the first connecting plate 21 can be reset after rotation.

[0057] Please refer to the drawings, the opening and closing assembly 2 comprises a second torsion spring 25, the second torsion spring 25 is sleeved on the rotating shaft 23, one end of the second torsion spring 25 is fixed with the first connecting plate 21, the other end of the second torsion spring 25 is fixed with the second connecting plate 24.

[0058] Through adoption of the above technical scheme, the second connecting plate 24 can be rotated relative to the first connecting plate 21 through the setting of the second torsion spring 25, the second connecting plate 24 can be reset after rotation, and the central axes of the second connecting plate 24 and the first connecting plate 21 are parallel to each other when the second torsion spring 25 is not compressed.

[0059] Please refer to Figure 5 , the crane hook anti-unhooking device further comprises a locking assembly 4, the locking assembly 4 comprises: a sliding shaft 41, the sliding shaft 41 is fixed with the first connecting plate 21, the sliding shaft 41 is symmetrically arranged with the central axis of the first connecting plate 21; a sliding plate 42, the sliding plate 42 is slidably arranged opposite to the sliding shaft 41, the sliding plate 42 is slidably arranged opposite to the first connecting plate 21, the sliding plate 42 is slidably arranged opposite to the rotating shaft 23; when the first connecting plate 21 and the second connecting plate 24 are parallel to each other, the sliding plate 42 slides onto the first connecting plate 21 and the second connecting plate 24 to prevent the second connecting plate 24 from rotating.

[0060] Through adoption of the above technical scheme, when the first connecting plate 21 and the second connecting plate 24 are parallel to each other, the sliding plate 42 slides onto the first connecting plate 21 and the second connecting plate 24 to limit the first connecting plate 21 and the second connecting plate 24, thereby increasing the safety of the use of the entire hook 1.

[0061] Please refer to Figure 5 , both sides of the sliding plate 42 are provided with sliding grooves 43, the sliding shaft 41 is slidably connected with the sliding grooves 43, and the rotating shaft 23 is slidably connected with the sliding grooves 43.

[0062] Through adoption of the above technical scheme, the sliding grooves 43 can increase the sliding stability of the rotating shaft 23.

[0063] Please refer to Figure 5 , the sliding plate 42 is provided with a first recess 44.

[0064] Please refer to Figure 5 , the first connecting plate 21 is provided with a second recess 26.

[0065] By adopting the technical scheme, the rotation of the sliding plate 42 and the first connecting plate 21 can be prevented from being blocked by the first groove 44 and the second groove 26.

[0066] Working principle:

[0067] When the lifting belt is placed on the bearing plate 31 to exert pressure, the bearing plate 31 moves downward along the third groove 6 of the hook 1, driving the sleeve 32 to slide. At this time, the strong magnet 331 is separated from the bearing plate 31, and the pull rope (the first pull rope 335 and the second pull rope 336) transmits the action to the opening and closing assembly 2 through the pull ring (the first pull ring 332, the second pull ring 333 and the third pull ring 334), closes the opening of the hook 1, and prevents the lifting object from falling off. After the pressure is removed, the extension spring resets, the bearing plate 31 returns to the initial position, and the pull rope drives the opening and closing assembly 2 to open the opening of the hook 1.

[0068] When the force is applied, the first torsional spring drives the first connecting plate 21 to rotate relative to the hook 1 and resets, and the second torsional spring keeps the second connecting plate 24 in parallel with the first connecting plate 21. Through this structure, it is ensured that the hook 1 opens and closes stably and reliably, and can automatically reset after rotation, facilitating reuse.

[0069] When the first connecting plate 21 is parallel to the second connecting plate 24, the locking assembly 4 (including the sliding plate 42, the sliding shaft 41 and the sliding groove 43) works, the sliding plate 42 moves to between the two connecting plates, and the sliding range of the rotating shaft 23 and the sliding plate is limited through the sliding groove 43, so as to fix the positions of the first connecting plate 21 and the second connecting plate 24 and prevent accidental opening. The first groove 44 on the sliding plate 42 cooperates with the second groove 26 on the first connecting plate 21, improving the overall operation stability.

[0070] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein.

[0071] Alternatively, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here.

[0072] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0073] In the above-described embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0074] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. Crane hook anti-unhooking device comprising a hook (1), characterized in that, The utility model relates to a kind of hook, including: Opening and closing assembly (2), the opening and closing assembly (2) is connected with the hook (1); Control assembly (3), the control assembly (3) is arranged in the third groove (6) of the hook (1), the control assembly (3) includes: Bearing plate (31), the bearing plate (31) is arranged in the third groove (6) of the hook (1), the bearing plate (31) is connected with the opening and closing assembly (2) by control part (33); Sleeve (32), the sleeve (32) is connected with the bearing plate (31) and is fixed, the sleeve (32) is slidably arranged with the hook (1) relative to each other; The bearing plate (31) is driven the sleeve (32) to slide, to open or close the opening of the hook (1) by control part (33) control the opening and closing assembly (2).

2. Crane hook trip device according to claim 1, characterized in that The control part (33) includes: Strong magnet (331), the strong magnet (331) is detachably connected with the bearing plate (31); First pull ring (332), the first pull ring (332) is fixed with the strong magnet (331); Second pull ring (333), the second pull ring (333) is connected with the hook (1) and is fixed; Third pull ring (334), the third pull ring (334) is arranged in both sides of the opening and closing assembly (2); First pull cable (335), one end of the first pull cable (335) is fixed with the first pull ring (332), the other end of the first pull cable (335) is fixed with the third pull ring (334) of one side of the opening and closing assembly (2), and the first pull cable (335) passes through the second pull ring (333); Second pull cable (336), one end of the second pull cable (336) is fixed with the first pull ring (332), the other end of the second pull cable (336) is fixed with the third pull ring (334) of the other side of the opening and closing assembly (2), and the second pull cable (336) passes through the second pull ring (333).

3. Crane hook trip according to claim 2, characterized in that The control assembly (3) includes telescopic spring, the telescopic spring is arranged in the sleeve (32), one end of the telescopic spring is fixed with the hook (1), and the other end of the telescopic spring is connected with the sleeve (32) and is fixed.

4. Crane hook trip according to claim 3, characterized in that The opening and closing assembly (2) includes: First connecting plate (21), the first connecting plate (21) is fixedly connected with rotating shaft, the rotating shaft is rotatably arranged with the hook (1) relative to each other; First torsional spring, the first torsional spring is sleeved on the rotating shaft, one end of the first torsional spring is fixed with the hook (1), and the other end of the first torsional spring is fixed with the first connecting plate (21); Rotating shaft (23), the rotating shaft (23) passes through the first connecting plate (21) in both ends, the rotating shaft (23) is fixed with the first connecting plate (21), and the third pull ring (334) is fixed in both ends of the rotating shaft (23). A second connecting plate (24) is movably arranged opposite to the first connecting plate (21), and the second connecting plate (24) is rotatably arranged opposite to the rotating shaft (23).

5. Crane hook trip according to claim 4, characterized in that The opening and closing assembly (2) comprises a second torsion spring (25) sleeved on the rotating shaft (23), one end of the second torsion spring (25) is fixed to the first connecting plate (21), and the other end of the second torsion spring (25) is fixed to the second connecting plate (24).

6. Crane hook trip according to claim 4, characterized in that The crane hook anti-unhooking device further comprises a locking assembly (4), the locking assembly (4) comprises: A sliding shaft (41) is fixed to the first connecting plate (21), and the sliding shaft (41) is symmetrically arranged with the central axis of the first connecting plate (21); A sliding plate (42) is movably arranged opposite to the sliding shaft (41), the sliding plate (42) is movably arranged opposite to the first connecting plate (21), and the sliding plate (42) is movably arranged opposite to the rotating shaft (23); When the first connecting plate (21) and the second connecting plate (24) are parallel to each other, the sliding plate (42) slides onto the first connecting plate (21) and the second connecting plate (24) to prevent the second connecting plate (24) from rotating.

7. Crane hook trip according to claim 6, characterized in that Sliding grooves (43) are formed on both sides of the sliding plate (42), the sliding shaft (41) is movably connected with the sliding grooves (43), and the rotating shaft (23) is movably connected with the sliding grooves (43).

8. Crane hook trip according to claim 6, characterized in that A first recess (44) is formed on the sliding plate (42).

9. A load hook dehooking device according to claim 4, characterised in that A second recess (26) is formed on the first connecting plate (21).

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